CN113174171A

CN113174171A - Anti-sticking composite waterproof coiled material, anti-sticking coating and preparation method thereof

Info

Publication number: CN113174171A
Application number: CN202110421140.6A
Authority: CN
Inventors: 吴兆辉; 林金鸿; 江强
Original assignee: Guangdong Nenghui New Material Technology Co ltd
Current assignee: Guangdong Nenghui New Material Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-07-27

Abstract

The application provides an anti-sticking composite waterproof coiled material, an anti-sticking coating and a preparation method thereof. The anti-sticking coating of the anti-sticking composite waterproof coiled material comprises the following components in parts by mass: 40-70 parts of acrylic emulsion; 0.4-3 parts of a coupling agent; 0.2 to 2 portions of dispersant; 0.2 to 1 portion of defoaming agent; 10-30 parts of a filler; 1-5 parts of a light stabilizer; the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on glass fiber cloth. The anti-sticking coating of the anti-sticking composite waterproof coiled material has good film forming property and weather resistance.

Description

Anti-sticking composite waterproof coiled material, anti-sticking coating and preparation method thereof

Technical Field

The invention relates to the technical field of waterproof coiled materials, in particular to an anti-sticking composite waterproof coiled material, an anti-sticking coating and a preparation method thereof.

Background

The waterproof coiled material is mainly used for building walls, roofs, tunnels, highways, refuse landfills and the like, can be curled into a roll-shaped flexible building material product for resisting external rainwater and underground water leakage, is used as a leakage-free connection between an engineering foundation and a building, is a waterproof first barrier of the whole engineering, and plays a vital role in the whole engineering.

The existing waterproof coiled materials are mostly in a structure of a base material layer, an adhesive layer and an anti-sticking isolation layer, materials such as quartz sand, sintered sand, a PET (polyethylene terephthalate) isolation film or coating paint are mostly adopted as the anti-sticking layer in the prior art, the quartz sand is easy to separate in the construction process, the self weight is large, and the transportation is difficult; the price of the sintered sand is high, the dust is large in the production process, the production environment is severe, and the transportation cost is high; when materials such as a PET isolating film and the like are used as an anti-sticking layer for compounding, the anti-sticking layer cannot be well attached to the surface of a hot melt adhesive, the adhesive layer has stress, the isolating film needs to be torn off when reinforcing steel bars are bound on the surface of the adhesive layer, time and labor are wasted, the adhesive layer is not protected any more, and severe construction environment and weather factors are met, so that the adhesive property of the adhesive layer is easily reduced; the coating is synthesized by water-soluble high-molecular resin and weak-base active emulsion through high-temperature reaction, although the stripping performance of the coating obtained by the technical scheme is improved, the polar environment resistance is poor, for example, when the coating is applied to submarine tunnels, refuse landfill sites and other harsh conditions, the stripping strength of the coating and concrete is seriously affected, a good waterproof effect cannot be achieved, and the potential risk of water channeling exists.

Therefore, when the traditional waterproof coiled material is constructed, the anti-sticking isolating membrane is required to be torn off firstly, the adhesive layer is exposed, sand is coated on the adhesive layer, and then concrete is poured, so that time and labor are consumed; in order to solve the technical problem, the existing waterproof coiled material also adopts an anti-sticking coating, but the existing anti-sticking coating has the problems of poor film forming property and poor weather resistance.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides an anti-sticking composite waterproof coiled material with good film forming property and high weather resistance, an anti-sticking coating and a preparation method thereof.

The purpose of the invention is realized by the following technical scheme:

an anti-sticking coating of an anti-sticking composite waterproof coiled material comprises the following components in parts by mass:

the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on glass fiber cloth.

In one embodiment, the acrylic emulsion comprises an aqueous acrylic emulsion and an organic acrylic emulsion.

In one embodiment, the coupling agent is at least one of an aluminate coupling agent, 3-aminopropyltriethoxysilane, vinyltriethoxysilane, and vinyltris (. beta. -methoxyethoxy) silane.

In one embodiment, the dispersant is at least one of sodium hexametaphosphate, sodium pyrophosphate, triethylhexylphosphoric acid, sodium lauryl sulfate, methylpentanol, a derivative of a spacing element, and polyacrylamide.

In one embodiment, the filler is at least one of ground calcium carbonate, light calcium carbonate, titanium dioxide, talc, and calcined kaolin.

In one embodiment, the light stabilizer is at least one of carbon black, an o-hydroxybenzophenone light stabilizer, a benzotriazole light stabilizer, and a hindered amine light stabilizer.

In one embodiment, the composition further comprises the following components in parts by mass:

0.5 to 2 portions of film forming additive.

In one embodiment, the coalescing agent is at least one of propylene glycol phenyl ether, the alcohol ester dodeca, and tripropylene glycol n-butyl ether.

A method for preparing a release coating of a release composite waterproof roll, which is used for preparing the release coating of the release composite waterproof roll in any embodiment, and comprises the following steps:

carrying out primary stirring operation on the prepared inorganic acrylic emulsion, and adding a defoaming agent while stirring to obtain a premixed inorganic acrylic emulsion;

adding the filler into the organic acrylic emulsion, and carrying out secondary stirring operation to obtain a filler premix;

adding a light stabilizer and a dispersing agent into the premixed inorganic acrylic emulsion, and carrying out third stirring operation to obtain an anti-sticking coating primary mixed liquid;

adding the anti-sticking coating primary mixed liquid into the filler premix, and carrying out fourth stirring operation to obtain a premixed anti-sticking coating;

and sequentially adding a coupling agent and a solvent into the premixed anti-sticking coating, and performing fifth stirring operation to obtain the anti-sticking coating of the anti-sticking composite waterproof coiled material.

The anti-sticking composite waterproof roll comprises the anti-sticking coating prepared by the preparation method of the anti-sticking coating of the anti-sticking composite waterproof roll.

Compared with the prior art, the invention has at least the following advantages:

1. the anti-sticking coating of the anti-sticking composite waterproof coiled material adopts the acrylic emulsion which has better compatibility with the filler, and the molecular weight of the emulsion is reduced and the dispersion is easier by controlling and reducing the content of the filler, so that the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved. Further, the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on the glass fiber cloth, the dipping effect of the anti-sticking coating and the glass fiber cloth can be effectively improved by improving the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material, the anti-sticking coating can effectively improve the flexibility and the wear resistance of glass fibers, and the glass fibers have better water resistance and corrosion resistance, so that the waterproofness and the weather resistance of the anti-sticking composite waterproof coiled material are improved.

2. In the anti-sticking coating of the anti-sticking composite waterproof coiled material, the acrylic emulsion has better compatibility with additives such as the filler, the light stabilizer and the like, and the uniformity of the light stabilizer can be effectively improved by controlling and reducing the content of the filler and correspondingly increasing the content of the light stabilizer, so that the weather resistance of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a flow chart of a method for preparing an anti-adhesive coating for an anti-adhesive composite waterproof roll in one embodiment;

FIG. 2 is a flow chart of a process for preparing the anti-sticking coating of the anti-sticking composite waterproof roll shown in FIG. 1;

fig. 3 is a schematic structural view of the anti-sticking composite waterproof roll shown in fig. 1.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The application provides an antiseized coating of antiseized compound waterproofing membrane. The anti-sticking coating of the anti-sticking composite waterproof coiled material comprises the following components in parts by mass: 40-70 parts of acrylic emulsion; 0.4-3 parts of a coupling agent; 0.2 to 2 portions of dispersant; 0.2 to 1 portion of defoaming agent; 10-30 parts of a filler; 1-5 parts of a light stabilizer; the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on glass fiber cloth.

In the anti-sticking coating of the anti-sticking composite waterproof coiled material, the acrylic emulsion and the filler have better compatibility, the molecular weight of the emulsion is reduced by controlling and reducing the content of the filler, and the emulsion is easier to disperse, so that the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved. Further, the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on the glass fiber cloth, the dipping effect of the anti-sticking coating and the glass fiber cloth can be effectively improved by improving the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material, the anti-sticking coating can effectively improve the flexibility and the wear resistance of glass fibers, and the glass fibers have better water resistance and corrosion resistance, so that the waterproofness and the weather resistance of the anti-sticking composite waterproof coiled material are improved. In addition, the acrylic emulsion has good compatibility with additives such as filler, light stabilizer and the like, and the uniformity of the light stabilizer can be effectively improved by controlling and reducing the content of the filler and correspondingly increasing the content of the light stabilizer, so that the weather resistance of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved.

In order to better understand the release coating of the release composite type waterproof coiled material, the release coating of the release composite type waterproof coiled material is further explained below, and the release coating of the release composite type waterproof coiled material of one embodiment comprises the following components in parts by mass: 40-70 parts of acrylic emulsion; 0.4-3 parts of a coupling agent; 0.2 to 2 portions of dispersant; 0.2 to 1 portion of defoaming agent; 10-30 parts of a filler; 1-5 parts of a light stabilizer; the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on glass fiber cloth.

In the anti-sticking coating of the anti-sticking composite waterproof coiled material, the acrylic emulsion is emulsion formed by copolymerizing pure acrylic ester monomers, and has outstanding water resistance and weather resistance. The acrylic emulsion special for construction is adopted in the embodiment, and the acrylic emulsion has good compatibility with the filler, the auxiliary agent and the like, so that the anti-sticking coating has good adhesion to glass fibers, and meanwhile, the acrylic emulsion also has good film forming property. The coupling agent is a substance with two functional groups with different properties, and the molecular structure of the coupling agent is mainly characterized in that the molecule contains two groups with different chemical properties, one group is an inorganophilic group and is easy to chemically react with the surface of an inorganic substance; the other is an organophilic group which is capable of chemically reacting with or forming hydrogen bonds soluble in synthetic resins or other polymers. The coupling agent is matched with the acrylic emulsion, so that the adhesive property of the surfaces of the organic material and the inorganic material can be improved, and the adhesive force of the inorganic filler substrate and resin can be improved, thereby improving the mechanical strength of the material and the adhesive property of the silicate material. The dispersing agent is a surfactant which has two opposite properties of lipophilicity and hydrophilcity in a molecule, and can promote material particles to be uniformly dispersed in a medium. In the present embodiment, a dispersant is blended with an acrylic emulsion to uniformly disperse an auxiliary agent such as a filler and a light stabilizer in the acrylic emulsion, thereby improving the film formability of the release coating. Defoamers reduce the surface tension of water, solutions, suspensions, etc., prevent foam formation, or reduce or eliminate the original foam. In the embodiment, the defoaming agent is a coating defoaming agent, the coating defoaming agent does not contain organic silicon, the coating defoaming agent is distributed in the foam elastic membrane after penetrating into the membrane, and the thin layer is broken due to the reduction of the surface tension, so that the foam generated by the acrylic emulsion system can be effectively eliminated. Furthermore, the molecular weight of the emulsion is reduced by controlling and reducing the content of the filler, and the emulsion is easier to disperse, so that the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved. Further, the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on the glass fiber cloth, the dipping effect of the anti-sticking coating and the glass fiber cloth can be effectively improved by improving the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material, the anti-sticking coating can effectively improve the flexibility and the wear resistance of glass fibers, and the glass fibers have better water resistance and corrosion resistance, so that the waterproofness and the weather resistance of the anti-sticking composite waterproof coiled material are improved. In addition, the acrylic emulsion has good compatibility with additives such as filler, light stabilizer and the like, and the uniformity of the light stabilizer can be effectively improved by controlling and reducing the content of the filler and correspondingly increasing the content of the light stabilizer, so that the weather resistance of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved.

In order to improve the film forming property and environmental protection property of the release coating of the release composite type waterproof roll, in one embodiment, the acrylic emulsion comprises an aqueous acrylic emulsion and an organic acrylic emulsion. It can be understood that the anti-sticking coating of the anti-sticking composite waterproof roll is used for forming a film on the glass fiber cloth, and the compatibility of the organic solvent and the organic compound is better. However, organic solvents are relatively volatile and have certain toxicity. In this embodiment, the acrylic emulsion includes a water-based acrylic emulsion and an organic acrylic emulsion, that is, the water-based acrylic emulsion and the organic acrylic emulsion are used in combination, so as to effectively reduce the usage amount of the organic solvent, thereby improving the environmental protection property of the acrylic emulsion. In addition, the water-based acrylic emulsion can be better mutually impregnated with the glass fiber cloth to form an anti-sticking composite coating with better stability.

In one embodiment, the coupling agent is at least one of an aluminate coupling agent, 3-aminopropyltriethoxysilane, vinyltriethoxysilane, and vinyltris (. beta. -methoxyethoxy) silane. The aluminate coupling agent is suitable for inorganic fillers such as heavy calcium carbonate, light calcium carbonate, titanium dioxide, talcum powder, kaolin and the like, and the inorganic filler treated by the aluminate coupling agent forms an organic monomolecular layer on the surface of the inorganic filler due to the adsorption or chemical reaction between the surface of the inorganic filler and the aluminate coupling agent, so that the inorganic filler is changed into a hydrophilic organic matter from hydrophilicity, and the impregnation effect between the anti-sticking coating and the glass fiber cloth is improved. In addition, the inorganic-inorganic breaking and the organic-inorganic breaking of the aluminate coupling agent respectively perform chemical reaction or winding on the surface of the inorganic filler and the organic resin to enhance the interface compatibility of the inorganic powder and the organic resin, so that the processing performance of an anti-sticking coating filled with the inorganic powder can be improved, the physical and mechanical properties of the anti-sticking composite waterproof coiled material can be obviously improved through the interaction of the aluminate coupling agent and the inorganic filler, the water absorption rate of the product is reduced, the oil absorption value is reduced, the filler is uniformly dispersed, and the use of the inorganic filler is effectively reduced. The 3-aminopropyltriethoxysilane can play a good role in promoting adhesion, and the 3-aminopropyltriethoxysilane is added into the anti-sticking coating of an acrylic acid system, so that the dispersibility of the anti-sticking coating can be effectively improved, and the adhesion of the anti-sticking coating and the glass fiber cloth can be improved. The vinyl triethoxysilane has the functions of both coupling agent and cross-linking agent in the anti-sticking coating, and the vinyl triethoxysilane can improve the interface between inorganic matter and organic matter in the anti-sticking coating, so as to greatly improve the performance of the anti-sticking coating and improve the affinity among glass fiber, inorganic filler and resin reacting on vinyl. Moreover, the vinyltriethoxysilane can generate chemical bonds among linear molecules, so that the linear molecules are connected with each other to form a network structure, thereby greatly improving the strength and elasticity of the anti-sticking coating. Furthermore, vinyltris (β -methoxyethoxy) silane is a bifunctional molecule that can react with both inorganic fillers and organic polymers, thereby reducing the use of inorganic fillers and improving the film forming properties of release coatings. In addition, the vinyl tri (beta-methoxyethoxy) silane can improve the bonding force of the fiber monofilament and resin such as polyester, and the performance of the anti-sticking coating and the glass fiber cloth after being soaked can be further improved.

In one embodiment, the dispersant is at least one of sodium hexametaphosphate, sodium pyrophosphate, triethylhexylphosphoric acid, sodium lauryl sulfate, methylpentanol, a derivative of a spacing element, and polyacrylamide. It can be understood that the dispersant is a surfactant which has two opposite properties of lipophilicity and hydrophily in a molecule, and the molecular structure of the surfactant is mainly characterized in that the molecule contains two groups with different chemical properties, one is an inorganic group and is easy to react with the surface of an inorganic substance; the other is an organophilic group which is capable of chemically reacting with or forming hydrogen bonds soluble in synthetic resins or other polymers. In this embodiment, the sodium hexametaphosphate dispersant is an auxiliary agent for improving and improving the dispersibility of solid or liquid materials, the water-insoluble oily liquid can be dispersed into very small liquid beads under high shear stirring, and can be quickly layered under the action of interfacial tension after stopping stirring, and the interfacial tension between liquid and solid and liquid can be reduced by adding the sodium hexametaphosphate dispersant and stirring, so as to form a stable emulsion. Sodium pyrophosphate is an inorganic dispersant and can play a good role in dispersing the anti-sticking coating. Furthermore, sodium pyrophosphate has a deflocculation effect to enable grease to play an emulsification role, and sodium pyrophosphate can further enable a surfactant solution to reduce surface tension and interfacial tension, so that a washing assistant effect is achieved. Triethyl hexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, a spacing element derivative and polyacrylamide are used as organic dispersing agents, and the dispersing agents are dissolved in water and then adsorbed on the surfaces of colloid particles to surround the particles to form steric hindrance and prevent a reaction reagent from contacting a reaction center. This action increases the repulsive force between the particles, releasing free water entrapped in the aggregate structure, thereby functioning as a dispersing particle and a lubricating particle.

In one embodiment, the filler is at least one of ground calcium carbonate, light calcium carbonate, titanium dioxide, talc, and calcined kaolin. In this embodiment, the heavy calcium carbonate is a powdery inorganic filler, and the heavy calcium carbonate is added to the anti-sticking coating, so that the coating is not settled and is easily dispersed, thereby improving the film forming property of the anti-sticking coating. And the heavy calcium carbonate can greatly reduce the viscosity of the anti-sticking coating after film forming, so that the anti-sticking coating is not sticky to touch, thereby effectively improving the anti-sticking property of the anti-sticking coating. The light calcium carbonate is also an inorganic filler, has fine particles and smaller particle size, and is favorable for improving the film forming property of the anti-sticking coating. Titanium dioxide is an important white pigment and has the scientific name of titanium dioxide. In this embodiment, titanium dioxide is added to the anti-sticking coating as an inorganic filler, and the anti-sticking coating has high weather resistance due to the shielding and absorbing effect of the titanium dioxide on ultraviolet rays. And secondly, the titanium dioxide has better dispersibility, and can improve the storage stability and the fluidity of the anti-sticking coating. The talc powder has a lamellar structure in a flake configuration, so that the fine-particle talc powder can be used as a reinforcing filler for acrylic emulsion. In the anti-sticking coating, the fine talcum powder filler is added, so that the heat-resistant creep property and stability of the anti-sticking coating can be improved, and the impact strength of the anti-sticking coating can also be improved. The calcined kaolin has better high temperature resistance, thereby being beneficial to improving the weather resistance of the anti-sticking coating. In addition, compared with uncalcined kaolin, the calcined kaolin has the advantages of reduced bound water content, increased silicon dioxide and aluminum trioxide content, increased active points, changed structure, smaller and uniform particle size, further improved viscosity of the acrylic emulsion, and contribution to film formation of the anti-sticking coating.

In one embodiment, the light stabilizer is at least one of carbon black, an o-hydroxybenzophenone light stabilizer, a benzotriazole light stabilizer, and a hindered amine light stabilizer. It is understood that light can degrade plastics, and in particular, ultraviolet light from sunlight can accelerate the degradation of plastics. In this embodiment, the blackness of carbon black can be used for the absorption of focusing, adds the carbon black in anti-sticking coating, can promote anti-sticking coating to ultraviolet absorption to improve anti-sticking coating's weatherability, prolong anti-sticking compound waterproofing membrane's life. The o-hydroxybenzophenone light stabilizer can absorb ultraviolet rays and convert the ultraviolet rays into heat energy and light energy to be released, an intramolecular chelate ring is formed by hydrogen bonds formed between hydroxyl hydrogen on a benzene ring and adjacent carbonyl hydrogen, after the ultraviolet light energy is absorbed, molecules generate thermal motion, the hydrogen bonds are destroyed, and the chelate ring is opened, so that harmful ultraviolet rays can be temporarily stored in a kinetic energy form, and if the chelate ring is formed again, the kinetic energy is released in a heat energy form. In addition, after ultraviolet light is absorbed, not only hydrogen bonds are broken, but also carbonyl groups are excited to cause tautomerism, an enol structure is generated, and energy is released as low-frequency light energy if a chelate ring is formed again. The benzotriazole has good high temperature resistance, the maximum absorption peak is 353nm, the chemical stability is good, the volatility is small, and the compatibility with polyolefin is good.

Further, because after light stabilizer absorbed the ultraviolet ray, increased waterproofing membrane the possibility that generates heat, in this embodiment, antiseized compound waterproofing membrane antiseized coating still includes antioxidant and heat stabilizer, antioxidant and heat stabilizer and light stabilizer three synergism, can further promote antiseized coating's weatherability, prevents effectively simultaneously that waterproofing membrane from producing the problem that generates heat.

In one embodiment, the anti-sticking coating of the anti-sticking composite waterproof roll further comprises the following components in parts by mass: 0.5 to 2 portions of film forming additive. It will be appreciated that in general emulsions will have a film forming temperature and that emulsions will not readily form films when the ambient temperature is below the emulsion film forming temperature. In this embodiment, the anti-adhesion coating of the anti-adhesion composite waterproof roll comprises 1 part by mass of a film-forming assistant, so that the film-forming property of the anti-adhesion coating is further improved, and the influence of the environmental temperature on the film formation of the anti-adhesion coating is prevented.

Further, the film-forming assistant is at least one of propylene glycol phenyl ether, alcohol ester dodeca and tripropylene glycol n-butyl ether. When propylene glycol phenyl ether is added into an acrylic emulsion system, the propylene glycol phenyl ether is redistributed in an aqueous phase and a polymeric phase, and the excellent film forming efficiency is determined by the extremely small distribution coefficient of the propylene glycol phenyl ether in the two phases, and simultaneously, the good plasticizing effect and the proper volatilization rate balance are ensured. When added to an acrylic emulsion, the alcohol ester dodecacoalescent is absorbed onto the emulsion particles, softening the particles and causing better fusion upon coating. The alcohol ester dodecas are not absorbed into the permeable matrix, but are effective in coalescing the emulsion particles, thereby improving the film forming properties of the release coating.

In one embodiment, the anti-sticking coating of the anti-sticking composite waterproof roll further comprises the following components in parts by mass: 0.2 to 1.5 portions of water-based thickening agent. In the embodiment, the anti-sticking coating of the anti-sticking composite waterproof roll is mainly used for film formation on glass fiber cloth, the anti-sticking coating is easy to crack after film formation, and the main reason for cracking of the anti-sticking coating film is poor flexibility of an anti-sticking coating system. In the embodiment, the viscosity of the anti-sticking coating glue solution can be effectively improved by adding the aqueous thickening agent, so that the flexibility of the anti-sticking coating system is improved, and the anti-sticking coating is prevented from cracking after film forming.

In one embodiment, the anti-sticking coating of the anti-sticking composite waterproof roll further comprises the following components in parts by mass: 50-80 parts of butyl acrylate. It is understood that butyl acrylate is a more flexible monomer than acrylic acid. In the embodiment, butyl acrylate is added into the anti-sticking coating, and the addition amount of the butyl acrylate is larger than the content of acrylic acid, so that the amount of the soft monomer is increased, the amount of the hard monomer is reduced, the film can be softened, the flexibility of the anti-sticking coating system can be effectively increased, and the anti-sticking coating is prevented from cracking after the film is formed.

In order to better understand the anti-sticking coating of the anti-sticking composite waterproof coiled material, the invention also provides a preparation method of the anti-sticking coating of the anti-sticking composite waterproof coiled material. The preparation method of the anti-sticking coating of the anti-sticking composite waterproof coiled material comprises the following steps: carrying out primary stirring operation on the prepared acrylic emulsion, and adding a defoaming agent while stirring to obtain a premixed acrylic emulsion; adding a light stabilizer and a dispersing agent into the premixed acrylic emulsion, and carrying out secondary stirring operation to obtain an anti-sticking coating primary mixed liquid; and sequentially adding a coupling agent, a filler and a solvent into the anti-sticking coating primary mixed liquid, and carrying out stirring operation for the third time to obtain the anti-sticking coating of the anti-sticking composite waterproof coiled material.

The preparation method of the anti-sticking coating of the anti-sticking composite waterproof coiled material is simple, the operation is easy, the preparation condition is mild, and the anti-sticking coating of the anti-sticking composite waterproof coiled material prepared by the method has good film forming property and weather resistance.

In order to better understand the preparation method of the release coating material for the release composite type waterproof roll material of the present invention, the preparation method of the release coating material for the release composite type waterproof roll material of the present invention is further explained below, and the preparation method of the release coating material for the release composite type waterproof roll material of one embodiment comprises the following steps:

and S100, carrying out primary stirring operation on the prepared inorganic acrylic emulsion, and adding a defoaming agent while stirring to obtain the premixed inorganic acrylic emulsion.

In this embodiment, the acrylic emulsion that will prepare carries out stirring operation for the first time, makes acrylic emulsion's homogeneity and viscosity better, is favorable to the interpolation and the integration of follow-up auxiliary agent, adds the defoaming agent under the state of stirring to get rid of the bubble that acrylic emulsion produced in the stirring process effectively, prevent that the bubble from producing the influence to the preparation process of antiseized coating, improve the film forming ability of antiseized coating.

And S200, adding the filler into the organic acrylic emulsion, and carrying out secondary stirring operation to obtain a filler premix.

In this embodiment, the filler contains titanium dioxide, and the anti-sticking coating has high weather resistance due to the shielding and absorbing effect of titanium dioxide on ultraviolet rays. And secondly, the titanium dioxide has better dispersibility, and can improve the storage stability and the fluidity of the anti-sticking coating. However, titanium dioxide is insoluble in water and is not easily dispersed in an inorganic solvent, thereby affecting the effect of titanium dioxide in the anti-sticking coating. In this embodiment, the filler is added to the organic acrylic emulsion, and the second stirring operation is performed, so that the titanium dioxide in the filler is fully dissolved in the organic acrylic emulsion and uniformly dispersed, thereby improving the uniformity of the titanium dioxide in the anti-sticking coating, and further improving the weather resistance of the anti-sticking coating. In addition, the titanium dioxide can play a role in protecting the stability of the anti-sticking coating after being dispersed in the anti-sticking coating, thereby improving the film forming property of the anti-sticking coating, enhancing the mechanical strength and the adhesive force of an anti-sticking coating film and preventing cracks from appearing after the film is formed.

And S300, adding a light stabilizer and a dispersing agent into the premixed inorganic acrylic emulsion, and carrying out third stirring operation to obtain an anti-sticking coating primary mixed liquid.

In this embodiment, the light stabilizer and the dispersant are added to the pre-mixed acrylic emulsion, and the third stirring operation is performed to uniformly mix the light stabilizer and the dispersant in the pre-mixed acrylic emulsion, which is beneficial to the subsequent film formation of the anti-sticking coating.

And S400, adding the anti-sticking coating primary mixed liquid into the filler premix, and carrying out fourth stirring operation to obtain the premixed anti-sticking coating.

It can be understood that titanium dioxide is easily floated on the surface when being put into an inorganic solvent, and if the filler premix is put into the anti-sticking coating primary mixed liquid first, the filler premix is easily hindered by the buoyancy of the anti-sticking coating primary mixed liquid, so that the stirring and mixing of the anti-sticking coating primary mixed liquid and the filler premix are not facilitated. In this embodiment, the anti-adhesion coating material primary mixed liquid is added to the filler pre-mixture, so that the filler pre-mixture is located at the bottom of the anti-adhesion coating material primary mixed liquid, which is beneficial to mixing and stirring the anti-adhesion coating material primary mixed liquid and the filler pre-mixture more fully.

And S500, sequentially adding the coupling agent and the solvent into the premixed anti-sticking coating, and performing fifth stirring operation to obtain the anti-sticking coating of the anti-sticking composite waterproof coiled material.

In this example, the coupling agent and the solvent were sequentially added to the anti-blocking paint primary mixed solution, and the fifth stirring operation was performed to uniformly mix the coupling agent and the solvent in the anti-blocking paint primary mixed solution and improve the film forming property of the anti-blocking paint.

In one embodiment, the stirring speed in the first stirring operation is 400rpm to 600 rpm. It will be appreciated that the entire mixture can be mixed more uniformly by agitation, the faster the agitation, the greater the shear force, and the smaller the "particles" of the emulsion reaction. However, if the stirring speed is too high, the polymerization degree of the acrylic emulsion is easy to be lower, which is not beneficial to the film formation of the final anti-sticking coating; if the stirring speed is too slow, heat dissipation is not facilitated. In this embodiment, the stirring speed in the first stirring operation is 500rpm, can promote acrylic emulsion's homogeneity and viscidity effectively, is favorable to the addition of defoaming agent simultaneously, makes the defoaming agent fully fuse into acrylic emulsion, reaches the effect of better elimination bubble to promote the film forming ability of antiseized coating.

In one embodiment, the stirring time in the first stirring operation is 5 minutes to 10 minutes. It is understood that if the stirring time is too short, the uniformity of the acrylic emulsion tends to be poor; if the stirring time is too long, the problem of overheating is easily caused, and the addition of the defoaming agent is not facilitated. In this embodiment, the stirring time of the first stirring operation is 7 minutes, which can effectively improve the uniformity of the acrylic emulsion and can improve the defoaming effect of the defoaming agent in the acrylic emulsion system.

In one embodiment, the stirring speed in the second stirring operation is 200rpm to 300 rpm. It can be understood that when the light stabilizer and the dispersing agent are added into the premixed acrylic emulsion, the second stirring operation is performed to uniformly mix the light stabilizer and the dispersing agent in the premixed acrylic emulsion, which is beneficial to the subsequent film formation of the anti-sticking coating. In order to enable the light stabilizer and the dispersing agent to be respectively fused with the acrylic emulsion, in this embodiment, the stirring speed in the second stirring operation is 250rpm, and the stirring speed in the second stirring operation is less than the stirring speed in the first stirring operation, that is, when the light stabilizer and the dispersing agent are added into the premixed acrylic emulsion, the stirring speed is gradually reduced, so that the dispersing agent can be more fully reacted with the acrylic emulsion, the dispersibility of the premixed acrylic emulsion is better, and the film formation of the subsequent anti-sticking coating is more facilitated.

Further, the stirring time in the second stirring operation is 10-15 minutes, so that the light stabilizer and the dispersing agent are fully fused with the premixed acrylic emulsion.

In one embodiment, the stirring speed in the third stirring operation is 400rpm to 500 rpm. It can be understood that, when the coupling agent, the filler and the solvent are sequentially added into the anti-sticking coating initial mixed liquid, the third stirring operation is performed, so that the coupling agent, the filler and the solvent are uniformly mixed in the anti-sticking coating initial mixed liquid, and the film forming property of the anti-sticking coating is improved. In this embodiment, the stirring speed in the third stirring operation is 450rpm, the stirring speed in the third stirring operation is greater than the stirring speed in the second stirring operation, that is, when the coupling agent, the filler and the solvent are added into the anti-sticking coating initial mixing liquid, the stirring speed is gradually increased, the mixing of the filler and the acrylic emulsion is difficult and uniform, the filler and the anti-sticking coating initial mixing liquid are fully mixed by increasing the stirring speed, simultaneously, the mixing and stirring of other auxiliary agents are driven, and the bonding property of the anti-sticking coating is improved under the action of the coupling agent, so that the anti-sticking coating is easier to form a film.

Furthermore, the stirring time in the third stirring operation is 15-20 minutes, so that the acrylic emulsion in the anti-sticking coating is fully fused with other auxiliaries, and the polymer structure of the anti-sticking coating is improved, thereby improving the film forming property and the weather resistance of the anti-sticking coating.

In one embodiment, the release coating is subjected to a filtration operation after the step of performing the third agitation operation. In this example, after the acrylic emulsion, the filler and all the additives are mixed and formulated, a filtering operation is performed using a filter to prevent insoluble impurities from affecting the film formation of the anti-sticking coating.

Example 1

Weighing acrylic emulsion, adding the acrylic emulsion into a reaction kettle, starting stirring, carrying out primary stirring operation on the acrylic emulsion at the stirring speed of 400rpm, and adding a defoaming agent in the stirring process. And after continuously stirring for 5 minutes, sequentially adding the weighed light stabilizer and the dispersant into the acrylic emulsion, and carrying out second stirring operation on the acrylic emulsion at the stirring speed of 200 rpm. And (3) continuously stirring for 10 minutes, sequentially adding the weighed coupling agent, the filler and the solvent into the anti-sticking coating primary mixed solution, and carrying out stirring operation for the third time, wherein the stirring speed is 400rpm, and the stirring time is 15 minutes. And after the stirring operation is finished, the anti-sticking coating is filtered by using a filter screen.

Example 2

Weighing acrylic emulsion, adding the acrylic emulsion into a reaction kettle, starting stirring, carrying out primary stirring operation on the acrylic emulsion at the stirring speed of 600rpm, and adding a defoaming agent in the stirring process. And continuously stirring for 10 minutes, sequentially adding the weighed light stabilizer and the dispersant into the acrylic emulsion, and carrying out second stirring operation on the acrylic emulsion at the stirring speed of 300 rpm. And after continuously stirring for 15 minutes, sequentially adding the weighed coupling agent, the filler and the solvent into the anti-sticking coating primary mixed solution, and carrying out stirring operation for the third time, wherein the stirring speed is 500rpm, and the stirring time is 20 minutes. And after the stirring operation is finished, the anti-sticking coating is filtered by using a filter screen.

Example 3

Weighing acrylic emulsion, adding the acrylic emulsion into a reaction kettle, starting stirring, carrying out primary stirring operation on the acrylic emulsion at the stirring speed of 500rpm, and adding a defoaming agent in the stirring process. And after continuously stirring for 7 minutes, sequentially adding the weighed light stabilizer and the dispersant into the acrylic emulsion, and carrying out second stirring operation on the acrylic emulsion at the stirring speed of 250 rpm. And after continuously stirring for 12 minutes, sequentially adding the weighed coupling agent, the filler and the solvent into the anti-sticking coating primary mixed solution, and carrying out stirring operation for the third time, wherein the stirring speed is 450rpm, and the stirring time is 18 minutes. And after the stirring operation is finished, the anti-sticking coating is filtered by using a filter screen.

The application also provides an anti-sticking composite waterproof coiled material which comprises the anti-sticking coating prepared by the preparation method of the anti-sticking coating of the anti-sticking composite waterproof coiled material.

In one embodiment, the anti-sticking composite waterproof roll comprises an anti-sticking coating layer, a hot melt adhesive coating and a polymer substrate, and as shown in fig. 2, the coating method of the anti-sticking composite waterproof roll comprises the following steps:

and S100, dipping the anti-sticking coating on the glass fiber cloth a to obtain the glass fiber cloth with the anti-sticking coating.

In this embodiment, the fiberglass cloth a is put into a trough filled with the anti-sticking coating for dipping, so that the anti-sticking coating and the fiberglass cloth a are mutually dipped to form the anti-sticking coating, and the anti-sticking coating has better anti-sticking property and weather resistance.

S200, carrying out first rolling operation on the glass fiber cloth with the anti-sticking coating at a first preset temperature to obtain anti-sticking pre-impregnated glass fiber cloth b.

In this embodiment, the first preset temperature is higher than the temperature in the chute filled with the anti-sticking coating, the viscosity of the anti-sticking coating can be reduced by increasing the temperature, the glass fiber cloth with the anti-sticking coating is rolled for the first time at the first preset temperature, the temperature of the anti-sticking coating adhered to the glass fiber cloth a is increased by heating the roller surface of the composite pair roller, the viscosity of the anti-sticking coating on the glass fiber cloth a is reduced, the anti-sticking coating is more easily soaked into the glass fiber cloth a through the rolling operation, the adhesion between the anti-sticking coating and the glass fiber cloth a is tighter, meanwhile, the viscosity of the anti-sticking coating is reduced, the roller can be prevented from adhering part of the anti-sticking coating in the rolling process, and the extrusion integrity of the anti-sticking coating is ensured; in addition, the temperature is increased in the rolling operation, the volatilization of moisture in the anti-sticking coating can be accelerated, so that the film forming of the anti-sticking coating is facilitated, and the anti-sticking effect of the anti-sticking coating is better.

S300, coating the hot melt adhesive on the high polymer base material 300 to obtain the hot melt adhesive coating 400.

In this embodiment, the polymer base material 300c mainly performs the functions of shaping and supporting, has excellent toughness and wear resistance, and can seal the gap formed during concrete pouring, thereby performing a good function of preventing water leakage or water seepage for a building structure. The material of the polymer base material 300c is high-density polyethylene resin, ethylene-propylene rubber, ethylene-vinyl acetate copolymer, ethylene-propylene-diene monomer rubber, or chloroprene rubber. Thus, the polymer base material 300c has good physical and mechanical properties, and can meet the high requirement of the building engineering on the puncture resistance of the waterproof roll. Furthermore, the hot melt adhesive coating d is used as an intermediate layer for bonding the polymer substrate 300c and the anti-sticking pre-impregnated glass fiber cloth b into an integrated structure, has excellent bonding performance and aging resistance, and can ensure that the integral structure of the anti-sticking composite waterproof roll is firmer and more stable, thereby playing a better role in resisting water seepage and water channeling.

And S400, adhering the anti-sticking pre-impregnated glass fiber cloth b to the hot melt adhesive coating d at a second preset temperature to obtain the anti-sticking composite waterproof roll.

It can be understood that after the first rolling operation of the anti-sticking pre-impregnated glass fiber cloth b at the first preset temperature, the adhesion between the anti-sticking coating in the anti-sticking pre-impregnated glass fiber cloth b and the glass fiber cloth a is tighter and firmer. After the first rolling operation, the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c are pressed together, so that the anti-sticking pre-impregnated glass fiber cloth b is adhered to the hot melt adhesive coating d. In this embodiment, the anti-sticking pre-impregnated glass fiber cloth b is adhered to the hot melt adhesive coating d at a second preset temperature, which is higher than the first preset temperature, so that on one hand, the anti-sticking coating can further form a film on the glass fiber cloth a at the second preset temperature, thereby improving the anti-sticking property of the anti-sticking pre-impregnated glass fiber cloth b, and improving the flexibility of the glass fiber cloth a; on the other hand, the hot melt adhesive layer is in a semi-molten state at the second preset temperature, so that the adhesion of the anti-sticking pre-impregnated glass fiber cloth b is facilitated, the composite roller pair is facilitated to roll the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c, the adhesion of the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c is enabled to be tighter, and the anti-sticking performance and the water resistance of the waterproof coiled material are improved.

In one embodiment, the anti-sticking coating of the anti-sticking composite waterproof roll comprises the following components in parts by mass: 40-70 parts of acrylic emulsion; 0.4-3 parts of a coupling agent; 0.2 to 2 portions of dispersant; 0.2 to 1 portion of defoaming agent; 10-30 parts of a filler; 1-5 parts of a light stabilizer; the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on glass fiber cloth. In this example, the acrylic emulsion is an emulsion of pure acrylic monomers copolymerized, which has outstanding water and weather resistance. The acrylic emulsion special for construction is adopted in the embodiment, and the acrylic emulsion has good compatibility with the filler, the auxiliary agent and the like, so that the anti-sticking coating has good adhesion to glass fibers, and meanwhile, the acrylic emulsion also has good film forming property. The coupling agent is a substance with two functional groups with different properties, and the molecular structure of the coupling agent is mainly characterized in that the molecule contains two groups with different chemical properties, one group is an inorganophilic group and is easy to chemically react with the surface of an inorganic substance; the other is an organophilic group which is capable of chemically reacting with or forming hydrogen bonds soluble in synthetic resins or other polymers. The coupling agent is matched with the acrylic emulsion, so that the adhesive property of the surfaces of the organic material and the inorganic material can be improved, and the adhesive force of the inorganic filler substrate and resin can be improved, thereby improving the mechanical strength of the material and the adhesive property of the silicate material. The dispersing agent is a surfactant which has two opposite properties of lipophilicity and hydrophilcity in a molecule, and can promote material particles to be uniformly dispersed in a medium. In the present embodiment, a dispersant is blended with an acrylic emulsion to uniformly disperse an auxiliary agent such as a filler and a light stabilizer in the acrylic emulsion, thereby improving the film formability of the release coating. Defoamers reduce the surface tension of water, solutions, suspensions, etc., prevent foam formation, or reduce or eliminate the original foam. In the embodiment, the defoaming agent is a coating defoaming agent, the coating defoaming agent does not contain organic silicon, the coating defoaming agent is distributed in the foam elastic membrane after penetrating into the membrane, and the thin layer is broken due to the reduction of the surface tension, so that the foam generated by the acrylic emulsion system can be effectively eliminated. Furthermore, the molecular weight of the emulsion is reduced by controlling and reducing the content of the filler, and the emulsion is easier to disperse, so that the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved. Further, the anti-sticking coating of the anti-sticking composite waterproof coiled material is used for forming a film on the glass fiber cloth, the dipping effect of the anti-sticking coating and the glass fiber cloth can be effectively improved by improving the film forming property of the anti-sticking coating of the anti-sticking composite waterproof coiled material, the anti-sticking coating can effectively improve the flexibility and the wear resistance of glass fibers, and the glass fibers have better water resistance and corrosion resistance, so that the waterproofness and the weather resistance of the anti-sticking composite waterproof coiled material are improved. In addition, the acrylic emulsion has good compatibility with additives such as filler, light stabilizer and the like, and the uniformity of the light stabilizer can be effectively improved by controlling and reducing the content of the filler and correspondingly increasing the content of the light stabilizer, so that the weather resistance of the anti-sticking coating of the anti-sticking composite waterproof coiled material is improved.

In one embodiment, the operation of dipping the release coating on the glass fiber cloth a specifically comprises the following steps: bundling and unreeling the glass fiber cloth a; and feeding the glass fiber cloth a into a trough filled with anti-sticking coating, and enabling the glass fiber cloth a to pass through a rotating roller in the trough so as to coat the anti-sticking coating on the two sides of the glass fiber cloth a. It can be understood that the release coating layer is formed by impregnating the release coating material and the glass cloth a with each other, so that the release coating layer has superior release property and weather resistance. In order to further improve the impregnation effect between the anti-sticking coating and the glass fiber cloth a, in the embodiment, the operation of impregnating the anti-sticking coating on the glass fiber cloth a specifically comprises the following steps: the glass fiber cloth a is rolled and unreeled, so that the glass fiber cloth a is convenient to store and use; and feeding the glass fiber cloth a into a trough filled with anti-sticking coating, and enabling the glass fiber cloth a to pass through a rotating roller in the trough so as to coat the anti-sticking coating on the two sides of the glass fiber cloth a. It can be understood that the anti-sticking coating emulsion in the trough is driven by the rotating roller, and the glass fiber cloth a moves at a uniform speed under the drive of the rotating roller, so that the anti-sticking coating can be uniformly coated on the glass fiber cloth a. Meanwhile, the anti-sticking coating is coated on the two sides of the glass fiber cloth a, so that the dipping effect between the glass fiber cloth a and the anti-sticking coating can be further improved.

In one embodiment, the temperature in the trough is 20 ℃ to 30 ℃. It can be understood that the tank is loaded with the anti-sticking coating emulsion, and the glass fiber cloth a can be sufficiently impregnated with the anti-sticking coating in the tank under the action of the rotating roller to form the anti-sticking coating with better anti-sticking property and weather resistance. In order to improve the adhesion of the anti-sticking coating emulsion on the glass fiber cloth a, in the embodiment, the temperature in the trough is 25 ℃, namely the temperature of the anti-sticking coating emulsion is 25 ℃, the viscosity of the anti-sticking coating emulsion at 25 ℃ is higher, the adhesion is stronger, and when the rotating roller drives the glass fiber cloth a to be dipped with the anti-sticking coating emulsion in the trough, the anti-sticking coating emulsion can be more firmly adhered to the glass fiber cloth a, so that the rolling operation of the glass fiber cloth with the anti-sticking coating is convenient, and the anti-sticking coating is fully dipped in the glass fiber cloth a.

In one embodiment, before the step of dipping the release coating on the glass fiber cloth to obtain the glass fiber cloth with the release coating, the method further comprises the following steps: and heating the glass fiber cloth. In this embodiment, before the glass fiber cloth enters the trough and is impregnated with the anti-sticking coating, the glass fiber cloth is sent into the baking oven to be heated, so that paraffin in the glass fiber cloth is heated and then falls off from the surface of the glass fiber cloth, the adhesion between the glass fiber cloth and the anti-sticking coating glue solution is prevented from being reduced due to the smoothness of the paraffin on the surface of the glass fiber cloth, and the impregnation effect of the glass fiber cloth and the anti-sticking coating is improved. Meanwhile, the surface of the glass fiber cloth has higher temperature after being heated, so that the viscosity of the anti-sticking coating glue solution contacting with the glass fiber cloth can be reduced when the glass fiber cloth passes through a trough filled with the anti-sticking coating glue solution along with a roller, the resistance of the anti-sticking coating glue solution to the rotation of the roller is reduced, the resistance of the anti-sticking coating glue solution to the impregnation of the glass fiber cloth is reduced, the efficiency of the mutual impregnation of the anti-sticking coating and the glass fiber cloth is effectively improved, and the film forming property of the anti-sticking coating glue solution is improved.

In one embodiment, after the step of dipping the anti-adhesion coating on the glass fiber cloth to obtain the glass fiber cloth with the anti-adhesion coating, before the step of performing a first rolling operation on the glass fiber cloth with the anti-adhesion coating at a first preset temperature to obtain the anti-adhesion pre-impregnated glass fiber cloth, the method further comprises the following steps: and carrying out cold air blowing operation on the glass fiber cloth with the anti-sticking coating. In this embodiment, set up the cold wind air-blower in the exit that the fine cloth of glass accomplished with antiseized coating glue solution flooding, after fine cloth of glass accomplished mutual flooding with antiseized coating device, carry out cold wind through the air-blower and blow the operation to the fine cloth of glass that has antiseized coating, reduce the temperature of antiseized coating glue solution in the fine cloth of glass to improve the viscosity of antiseized coating glue solution, make antiseized coating and the fine cloth of glass bond more closely, and then improve the antiseized nature and the pliability of fine cloth of glass. In addition, by carrying out cold air blowing operation on the glass fiber cloth with the anti-sticking coating, the volatilization of moisture in the anti-sticking coating can be accelerated, and the film forming property of the anti-sticking coating is improved.

In one embodiment, the rolling device in the first rolling operation is located directly above the trough. It can be understood that when the glass fiber cloth passes through the roller, the roller drives the anti-sticking coating glue solution to adhere and impregnate on the surface of the glass fiber cloth along with the rotation of the roller, and then the glass fiber cloth is extruded by the rolling device in the first rolling operation to further impregnate the anti-sticking coating on the glass fiber cloth. However, when the roller drives the anti-sticking coating glue solution, the glass fiber cloth is easy to have uneven glue solution and different anti-sticking coating thickness, and the anti-sticking coating layer is too thick and easy to crack in the processing process. In this embodiment, the rolling device in the first rolling operation is located right above the trough, and after the anti-sticking coating glue solution is adhered to the glass fiber cloth by the driving of the roller, the glass fiber cloth with the anti-sticking coating is conveyed from the trough to the rolling device in the first rolling operation. Due to the action of gravity, the anti-sticking coating glue solution on the surface of the glass fiber cloth generates surface sagging, so that the thickness of the glue solution on the surface of the glass fiber cloth is limited and is thinner, and thus, the anti-sticking coating layer cannot generate a large amount of cracks due to overlarge thickness. Further, the rolling device is used for rolling the glass fiber cloth with the anti-sticking coating in the first rolling operation, so that redundant glue solution generated after the anti-sticking coating glue solution flows and hangs on the surface of the glass fiber cloth can be effectively removed, the glue solution on the glass fiber cloth is more uniform, and the thickness of the glue solution is uniform.

In one embodiment, the first rolling operation specifically comprises the following steps: feeding the glass fiber cloth a dipped with the anti-sticking coating between the composite pair rollers; and controlling the composite double rollers to rotate, and mutually extruding through the composite double rollers so as to further immerse the anti-sticking coating into the glass fiber cloth a. It can be understood that after the glass fiber cloth a is immersed in the anti-sticking coating emulsion in the trough, a large amount of anti-sticking coating adheres to the surface of the glass fiber cloth a, a part of the anti-sticking coating cannot be completely immersed in the glass fiber cloth a, and the surface smoothness of the glass fiber cloth a is poor, in order to further immerse the anti-sticking coating into the glass fiber cloth a and simultaneously improve the smoothness of the glass fiber cloth with the anti-sticking coating, in this embodiment, the first rolling operation specifically includes the following steps: feeding the glass fiber cloth a dipped with the anti-sticking coating between the composite pair rollers; and controlling the composite double rollers to rotate, and mutually extruding through the composite double rollers so as to further immerse the anti-sticking coating into the glass fiber cloth a. The composite pair rollers generate extrusion force on the glass fiber cloth a soaked with the anti-sticking coating and drive the glass fiber cloth a soaked with the anti-sticking coating to move forwards, so that the anti-sticking coating can be effectively promoted to be further soaked into the glass fiber cloth a, and the smoothness of the glass fiber cloth with the anti-sticking coating is effectively improved.

In one embodiment, after the step of adhering the anti-sticking prepreg fiberglass cloth b on the hot melt adhesive coating d at the second preset temperature, the method further comprises the following steps: and (3) performing second rolling operation on the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the high polymer base material 300 c. It can be understood that after the step of adhering the anti-sticking pre-impregnated fiberglass cloth b on the hot melt adhesive coating d at the second preset temperature, the anti-sticking pre-impregnated fiberglass cloth b, the hot melt adhesive coating d and the polymer substrate 300c are adhered together, but the firmness among the anti-sticking pre-impregnated fiberglass cloth b, the hot melt adhesive coating d and the polymer substrate 300c is weaker. In order to further improve the firmness among the anti-sticking pre-impregnated fiberglass cloth b, the hot melt adhesive coating d and the polymer substrate 300c, i.e. improve the stability of the anti-sticking composite waterproof roll, in this embodiment, after the step of adhering the anti-sticking pre-impregnated fiberglass cloth b on the hot melt adhesive coating d at the second preset temperature, the method further includes the following steps: and (3) performing second rolling operation on the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the high polymer base material 300 c. The anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer base material 300c are firmly bonded together by the extrusion force generated between the composite pair rollers, so that the stability of the anti-sticking composite waterproof coiled material is improved.

In one embodiment, the first predetermined temperature is 30 ℃ to 50 ℃. It can be understood that the first preset temperature is higher than the temperature in the chute filled with the anti-sticking coating, the viscosity of the anti-sticking coating can be reduced by increasing the temperature, the glass fiber cloth with the anti-sticking coating is rolled for the first time at the first preset temperature, the temperature of the anti-sticking coating adhered to the glass fiber cloth a is increased by heating the roller surface of the composite pair roller, the viscosity of the anti-sticking coating on the glass fiber cloth a is reduced, the anti-sticking coating is more easily soaked into the glass fiber cloth a through rolling operation, the adhesion between the anti-sticking coating and the glass fiber cloth a is tighter, meanwhile, the viscosity of the anti-sticking coating is reduced, the roller can be prevented from adhering part of the anti-sticking coating in the rolling process, and the extrusion integrity of the anti-sticking coating is ensured; in addition, the temperature is increased in the rolling operation, the volatilization of moisture in the anti-sticking coating can be accelerated, so that the film forming of the anti-sticking coating is facilitated, and the anti-sticking effect of the anti-sticking coating is better. In order to further improve the film forming property of the release coating, in this embodiment, the first preset temperature is 40 ℃, and at the first preset temperature, the moisture in the release coating is further volatilized, thereby effectively improving the film forming property of the release coating.

In one embodiment, the second predetermined temperature is 45 ℃ to 60 ℃. It can be understood that the anti-sticking pre-impregnated glass fiber cloth b is adhered to the hot melt adhesive coating d at a second preset temperature, and the second preset temperature is higher than the first preset temperature, so that on one hand, the anti-sticking coating can further form a film on the glass fiber cloth a at the second preset temperature, thereby improving the anti-sticking property of the anti-sticking pre-impregnated glass fiber cloth b and improving the flexibility of the glass fiber cloth a; on the other hand, the hot melt adhesive layer is in a semi-molten state at the second preset temperature, so that the adhesion of the anti-sticking pre-impregnated glass fiber cloth b is facilitated, the composite roller pair is facilitated to roll the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c, the adhesion of the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c is enabled to be tighter, and the anti-sticking performance and the water resistance of the waterproof coiled material are improved. However, if the second preset temperature is too high, the anti-sticking layer is easily damaged; if the second preset temperature is too low, the hot melt adhesive layer cannot reach a semi-molten state. In the present embodiment, the second preset temperature is 50 ℃, at which the hot melt adhesive layer is in a semi-molten state, so as to facilitate adhesion of the anti-sticking prepreg fiberglass cloth b.

In one embodiment, the linear speed in the first rolling operation is 5m/min to 15 m/min. It can be understood that, when the glass fiber cloth with the anti-sticking coating is subjected to the first rolling operation at the first preset temperature, the anti-sticking coating forms a film on the glass fiber cloth a, and the transport speed of the glass fiber cloth a in the roller, that is, the linear speed of the roller, has a large influence on the film forming property of the anti-sticking coating. In order to further improve the dipping efficiency of the anti-sticking coating and the glass fiber cloth a, in the embodiment, the linear speed in the first rolling operation is 10m/min, so that the glass fiber cloth with the anti-sticking coating can be sufficiently rolled, the anti-sticking coating can be more sufficiently immersed into the glass fiber cloth a, and the bonding between the anti-sticking coating and the glass fiber cloth a is tighter.

In one embodiment, the linear speed in the second rolling operation is 5m/min to 15 m/min. It is understood that after the step of adhering the anti-sticking pre-impregnated glass fiber cloth b on the hot melt adhesive coating d at the second preset temperature, the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c are subjected to a second rolling operation. In order to improve the smoothness and stability of the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c after rolling, in this embodiment, the linear speed in the second rolling operation is 10m/min, and the linear speed in the second rolling operation is the same as the linear speed in the first rolling operation, so that the coating process of the anti-sticking composite coating of the anti-sticking composite waterproof roll can be completed at one time, the coating of the anti-sticking composite coating is simpler and more convenient, and the smoothness and stability of the anti-sticking pre-impregnated glass fiber cloth b, the hot melt adhesive coating d and the polymer substrate 300c after rolling can be effectively improved.

As shown in fig. 3, in one embodiment, the anti-adhesion composite waterproof roll 10 includes a first anti-adhesion coating layer 100, a second anti-adhesion coating layer 200, a glass fiber fabric 300, a hot melt adhesive coating 400 and a polymer substrate layer 500, the hot melt adhesive coating 400 is coated on the polymer substrate layer 500, the second anti-adhesion coating layer 200 is adhered on one side of the hot melt adhesive coating 400 departing from the polymer substrate layer 500, the surfaces of the glass fiber fabric 300 and the second anti-adhesion coating layer 200 departing from the hot melt adhesive coating 400 are mutually impregnated, and the surfaces of the first anti-adhesion coating layer 100 and the glass fiber fabric 300 departing from the second anti-adhesion coating layer 200 are mutually impregnated.

Foretell compound waterproofing membrane's of antiseized antisticking coating layer includes first antisticking coating layer 100 and second antisticking coating layer 200, the fine cloth 300 of glass and the one side that second antisticking coating layer 200 deviates from hot melt adhesive coating 400 impregnate each other, first antisticking coating layer 100 and the fine cloth 300 of glass one side that deviates from second antisticking coating layer 200 impregnate each other, make antiseized coating can become the membrane completely and impregnate on fine cloth 300 of glass, thereby improve the adhesion between antisticking coating layer and the fine cloth 300 of glass, and can improve compound waterproofing membrane's of antiseized nature effectively. Further, the glass fiber cloth 300 of the anti-sticking composite waterproof roll has chemical corrosion resistance, can resist corrosion of strong acid, strong alkali and various organic solvents, and simultaneously the glass fiber cloth 300 also has ultraviolet resistance, so that the anti-sticking composite waterproof roll can withstand severe conditions of strong corrosion, sunlight and the like of construction points, and the anti-sticking composite waterproof roll has better weather resistance. In addition, the fine cloth 300 of glass's intensity is higher, can effectively promote antiseized compound waterproofing membrane's mechanical strength, but the fine cloth 300 of glass's pliability is relatively poor, through the fine cloth 300 of glass and the mutual flooding of antiseized dope layer, can improve the pliability of the fine cloth 300 of glass to when improving antiseized compound waterproofing membrane's mechanical strength, can also improve antiseized compound waterproofing membrane's pliability.

In one embodiment, the two sides of the fiberglass cloth 300 are respectively provided with a plurality of first concave grooves 312 and second concave grooves 314, the first anti-sticking paint layer 100 is provided with a first protrusion 112 corresponding to each first concave groove 312, the second anti-sticking paint layer 200 is provided with a second protrusion 114 corresponding to the second concave groove 314, the first protrusion 112 is connected with the first concave groove 312, and the second protrusion 114 is connected with the second concave groove 314. It can be understood that, the one side that second anti-adhesion coating layer 200 adhesion deviates from polymer substrate layer 500 at hot melt adhesive coating 400, the one side that fine cloth 300 of glass deviates from hot melt adhesive coating 400 with second anti-adhesion coating layer 200 soaks each other, the one side that first anti-adhesion coating layer 100 deviates from second anti-adhesion coating layer 200 with fine cloth 300 of glass soaks each other, make anti-adhesion coating can become the membrane completely and soak on fine cloth 300 of glass, thereby improve the adhesion between anti-adhesion coating layer and the fine cloth 300 of glass, and can improve anti-adhesion of compound waterproofing membrane of antiseized effectively. However, since the anti-sticking coating layer is not easily stuck, the adhesion of the glass cloth 300 to the anti-sticking coating layer is difficult. In order to further improve the stability between the anti-sticking coating layer and the glass fiber cloth 300, in this embodiment, two surfaces of the glass fiber cloth 300 are respectively provided with a plurality of first concave grooves 312 and second concave grooves 314, the first anti-sticking coating layer 100 is provided with a first protrusion 112 corresponding to each first concave groove 312, the second anti-sticking coating layer 200 is provided with a second protrusion 114 corresponding to the second concave groove 314, the first protrusion 112 is connected with the first concave groove 312, and the second protrusion 114 is connected with the second concave groove 314, so that the first anti-sticking coating layer 100 and the second anti-sticking coating layer 200 are prevented from sliding when being bonded with the glass fiber cloth 300, and the stability between the anti-sticking coating and the glass fiber cloth 300 is further improved.

Further, the first concave groove 312 and the second concave groove 314 form an included angle of 30 degrees to 60 degrees with the surface of the glass fiber cloth 300. It can be understood that the first protrusion 112 of the first release coating layer 100 is connected to the glass cloth 300 through the first concave groove 312, and the second protrusion 114 of the second release coating layer 200 is connected to the glass cloth 300 through the second concave groove 314. However, the first and second

release coating layers

100 and 200 are easily peeled off after being bonded to the glass cloth 300. In order to further improve the firmness between the first anti-sticking coating layer 100 and the glass fiber cloth 300 and the firmness between the second anti-sticking coating layer 200 and the glass fiber cloth 300, in this embodiment, the first concave groove 312 and the second concave groove 314 both form an included angle of 45 degrees with the surface of the glass fiber cloth 300, that is, when the first anti-sticking coating layer 100 and the second anti-sticking coating layer 200 are formed into a film and bonded to the glass fiber cloth 300, the first protrusion 112 and the first concave groove 312 form a clamping state, and the second protrusion 114 and the second concave groove 314 also form a clamping state, so that the first anti-sticking coating layer 100 and the second anti-sticking coating layer 200 can both generate a separation resistance with the glass fiber cloth 300, thereby effectively improving the firmness between the first anti-sticking coating layer 100 and the glass fiber cloth 300 and the firmness between the second anti-sticking coating layer 200 and the glass fiber cloth 300.

In one embodiment, the thickness of the first and second

release coating layers

100 and 200 is greater than the thickness of the fiberglass cloth 300. It can be understood that the surfaces of the glass fiber cloth 300 and the second anti-sticking coating layer 200 departing from the hot melt adhesive coating 400 are mutually impregnated, and the surfaces of the first anti-sticking coating layer 100 and the glass fiber cloth 300 departing from the second anti-sticking coating layer 200 are mutually impregnated, so that the anti-sticking coating can be completely formed into a film and impregnated on the glass fiber cloth 300, and the anti-sticking composite waterproof roll has better anti-sticking property. However, if the release coating cannot completely cover the glass cloth 300, the release properties of the waterproofing sheet and the connecting effect between the waterproofing sheet and the building structure such as concrete during use are easily affected. In order to improve the anti-sticking performance of the anti-sticking composite waterproof roll and the connection effect of the waterproof roll with the building structures such as concrete and the like during use, in this embodiment, the thickness of the first anti-sticking coating layer 100 and the second anti-sticking coating layer 200 is larger than that of the glass fiber cloth 300, so that the first anti-sticking coating layer 100 and the second anti-sticking coating layer 200 can be completely covered on the surface of the glass fiber cloth 300, and the first anti-sticking coating layer 100 and the second anti-sticking coating layer 200 respectively have better impregnation effect with the glass fiber cloth 300, thereby effectively improving the anti-sticking performance of the anti-sticking composite waterproof roll and the connection effect of the waterproof roll with the building structures such as concrete and the like during use.

In one embodiment, the hot melt adhesive coating 400 comprises a first hot melt adhesive coating 400 and a second hot melt adhesive coating 400, the first hot melt adhesive coating 400 is adhered on the polymer substrate layer 500, and the second hot melt adhesive coating 400 is adhered on the surface of the first hot melt adhesive coating 400, which is far away from the polymer substrate layer 500. It can be understood that, the coating of hot melt adhesive coating 400 is on polymer substrate layer 500, and the one side that second anti-sticking coating layer 200 adhesion deviates from polymer substrate layer 500 at hot melt adhesive coating 400, if once only with the hot melt adhesive coating on polymer substrate layer 500, make the thickness of hot melt adhesive coating 400 on the one hand easily uncontrollable, on the other hand is unfavorable for the bonding of second anti-sticking coating layer 200 and hot melt adhesive coating 400. In order to make the thickness of hot melt adhesive coating 400 more easily control, and the bonding of second anti-sticking coating layer 200 and hot melt adhesive coating 400 is more convenient, in this embodiment, hot melt adhesive coating 400 includes first hot melt adhesive coating 400 and second hot melt adhesive coating 400, and first hot melt adhesive coating 400 adhesion is on polymer substrate layer 500, and second hot melt adhesive coating 400 adhesion deviates from the one side of polymer substrate layer 500 at first hot melt adhesive coating 400. First layer of hot melt adhesive is coated on the polymer substrate layer 500 to form a first hot melt adhesive coating 400, a second layer of hot melt adhesive is coated after the first hot melt adhesive coating 400 is solidified to form a second hot melt adhesive coating 400, and the second anti-sticking coating layer 200 is adhered on the second hot melt adhesive coating 400, so that the thickness of the hot melt adhesive coating 400 is easier to control, and the second anti-sticking coating layer 200 is more convenient to adhere with the second layer of hot melt adhesive.

In one embodiment, the thickness of the hot melt adhesive coating 400 is between 0.2mm and 0.5 mm. It can be understood that the hot melt adhesive coating 400 is used for bonding the polymer substrate layer 500 and the second anti-sticking coating layer 200, and if the thickness of the hot melt adhesive coating 400 is smaller, the bonding between the polymer substrate layer 500 and the second anti-sticking coating layer 200 is easier to be weaker; if the thickness of the hot melt adhesive coating 400 is large, the structural stability of the waterproof roll is easily weak, and the larger the thickness is, the slower the curing is, thereby affecting the production efficiency of the waterproof roll. In order to improve the adhesion strength of polymer substrate layer 500 and second anti-sticking coating layer 200, in this embodiment, the thickness of hot melt adhesive coating 400 is 0.3mm, can improve the adhesion strength of polymer substrate layer 500 and second anti-sticking coating layer 200 effectively, make waterproofing membrane's structural stability better simultaneously, and hot melt adhesive coating 400's solidification is efficient, can effectively improve waterproofing membrane's production efficiency.

In order to improve the mechanical properties, weather resistance and water resistance of the anti-sticking composite waterproof roll, in one embodiment, the polymer substrate layer 500 is a high-density polyethylene layer and a thermoplastic polyolefin layer, the thermoplastic polyolefin layer is disposed on one side of the high-density polyethylene layer, and the hot melt adhesive coating layer 400 is adhered on one side of the thermoplastic polyolefin layer away from the high-density polyethylene layer. It should be noted that the high density polyethylene layer is formed by adding a large amount of magnesium hydroxide and aluminum hydroxide into the high density polyethylene material, and the high density polyethylene material has good heat resistance and cold resistance, good chemical stability, and higher rigidity, flexibility and mechanical strength. The thermoplastic polyolefin layer is formed by adding a large amount of magnesium hydroxide and aluminum hydroxide into a thermoplastic polyolefin material, the thermoplastic polyolefin material is made of an elastomer material consisting of rubber and polyolefin, and the thermoplastic polyolefin material has excellent weather resistance, oil resistance, ozone resistance and ultraviolet resistance; excellent dynamic fatigue resistance, good wear resistance, high tear resistance and small permanent compression deformation. The magnesium hydroxide and the aluminum hydroxide greatly improve the specific heat capacity of the high-density polyethylene layer and the thermoplastic polyolefin layer, the high-density polyethylene layer and the thermoplastic polyolefin layer are difficult to burn, and the moisture generated when the magnesium hydroxide and the aluminum hydroxide are decomposed at high temperature can take away heat and dilute combustible gas, so that self-extinguishing is realized. In this embodiment, the polymer substrate layer 500 is a high density polyethylene layer and a thermoplastic polyolefin layer, the thermoplastic polyolefin layer is disposed on a side of the high density polyethylene layer, and the hot melt adhesive coating 400 is adhered on a side of the thermoplastic polyolefin layer away from the high density polyethylene layer. The high-density polyethylene layer and the thermoplastic polyolefin layer are combined, so that the mechanical property, the weather resistance and the waterproofness of the anti-sticking composite waterproof coiled material can be effectively improved.

In order to improve the flame retardancy of the anti-sticking composite waterproof roll, in one embodiment, a flame retardant layer is further disposed between the hot melt adhesive coating layer 400 and the polymer substrate layer 500. In this embodiment, fire-retardant layer sets up between hot melt adhesive coating 400 and polymer substrate layer 500, can further improve antiseized compound waterproofing membrane's flame retardant efficiency.

In one embodiment, the thickness of the polymer substrate layer 500 is 1.0mm to 1.5 mm. It can be understood that the polymer substrate layer 500 can play a role in waterproofing and flame retarding in the anti-sticking composite waterproof roll, and if the thickness of the polymer substrate layer 500 is too small, the waterproofness and the flame retardance of the polymer substrate layer 500 are easily weakened; if the thickness of the polymer substrate layer 500 is too large, the convenience of using the anti-sticking composite waterproof roll is easily affected. In order to improve antiseized compound waterproofing membrane's waterproof nature and fire resistance, promote the convenience that antiseized compound waterproofing membrane used simultaneously, in this embodiment, polymer substrate layer 500's thickness is 1.2mm, makes antiseized compound waterproofing membrane both have better waterproof nature and fire resistance, can guarantee antiseized compound waterproofing membrane convenience when using again.

In one embodiment, the edge of the first anti-adhesive layer 100, the edge of the fiberglass cloth 300, the edge of the hot melt adhesive coating 400 and the edge of the polymer substrate layer 500 are aligned with each other, and the width of the first anti-adhesive layer 100 is greater than the width of the hot melt adhesive coating 400, so that the edge of the first anti-adhesive layer 100 can wrap the edge of the hot melt adhesive coating 400. It should be noted that, the width of the first anti-sticking coating layer 100 is 0.2mm to 0.5mm greater than the width of the hot melt adhesive coating 400, and the edge of the first anti-sticking coating layer 100 completely covers the edge of the hot melt adhesive coating 400 through the slightly larger edge of the first anti-sticking coating layer 100 than the hot melt adhesive coating 400, so that the anti-sticking performance of the anti-sticking composite waterproof roll is improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The anti-sticking coating for the anti-sticking composite waterproof coiled material is characterized by comprising the following components in parts by mass:

2. The release coating for releasing composite waterproof rolls according to claim 1, wherein the acrylic emulsion comprises an aqueous acrylic emulsion and an organic acrylic emulsion.

3. The anti-sticking coating for an anti-sticking composite waterproof roll according to claim 1, wherein the coupling agent is at least one of an aluminate coupling agent, 3-aminopropyltriethoxysilane, vinyltriethoxysilane, and vinyltris (β -methoxyethoxy) silane.

4. The release coating of a release composite type waterproof roll according to claim 1, wherein the dispersant is at least one of sodium hexametaphosphate, sodium pyrophosphate, triethylhexylphosphoric acid, sodium dodecyl sulfate, methylpentanol, a spacing element derivative and polyacrylamide.

5. The release coating of the release composite waterproof roll according to claim 1, wherein the filler is at least one of ground calcium carbonate, light calcium carbonate, titanium dioxide, talc and calcined kaolin.

6. The release coating of the release composite waterproof coil material according to claim 1, wherein the light stabilizer is at least one of carbon black, an o-hydroxybenzophenone light stabilizer, a benzotriazole light stabilizer and a hindered amine light stabilizer.

7. The anti-sticking coating for the anti-sticking composite waterproof roll material as claimed in claim 1, further comprising the following components in parts by mass:

0.5 to 2 portions of film forming additive.

8. The release coating for a release composite waterproof roll according to claim 7, wherein the film-forming aid is at least one of propylene glycol phenyl ether, alcohol ester dodeca, and tripropylene glycol n-butyl ether.

9. A method for preparing a release coating for a release composite type waterproof roll, which is used for preparing the release coating for a release composite type waterproof roll according to any one of claims 1 to 8, comprising the steps of:

10. An anti-sticking composite waterproof roll, characterized in that the anti-sticking composite waterproof roll comprises the anti-sticking coating prepared by the preparation method of the anti-sticking coating of the anti-sticking composite waterproof roll as claimed in claim 9.