CN116355555B - Adhesive, rubber layer and waterproof leak-repairing adhesive tape - Google Patents
Adhesive, rubber layer and waterproof leak-repairing adhesive tape Download PDFInfo
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- CN116355555B CN116355555B CN202310372269.1A CN202310372269A CN116355555B CN 116355555 B CN116355555 B CN 116355555B CN 202310372269 A CN202310372269 A CN 202310372269A CN 116355555 B CN116355555 B CN 116355555B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J109/00—Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09J109/06—Copolymers with styrene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J145/00—Adhesives based on homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic system; Adhesives based on derivatives of such polymers
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- C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09J157/02—Copolymers of mineral oil hydrocarbons
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2409/00—Presence of diene rubber
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- C09J2423/00—Presence of polyolefin
- C09J2423/006—Presence of polyolefin in the substrate
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/16—Presence of ethen-propene or ethene-propene-diene copolymers
- C09J2423/166—Presence of ethen-propene or ethene-propene-diene copolymers in the substrate
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- C09J2427/00—Presence of halogenated polymer
- C09J2427/006—Presence of halogenated polymer in the substrate
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- Adhesive Tapes (AREA)
Abstract
The application discloses an adhesive, a rubber layer and a waterproof leakage-repairing adhesive tape, wherein the waterproof leakage-repairing adhesive tape comprises a PVC film, an adhesive layer, a rubber layer and an adhesive layer which are sequentially arranged, and the PVC film comprises the following raw materials: SG3 resin, polyester plasticizer, filler, aluminum silver paste, ultraviolet absorbent, antioxidant W, stabilizer B and flame retardant Sb 2 O 3 A color patch; the adhesive layer comprises the following raw materials: thermoplastic styrene-butadiene rubber SEBSYH502, thermoplastic styrene-butadiene rubber SIS1105, hydrogenated C5 petroleum resin LH100-1, terpene resin T90, naphthenic oil, zinc dibutyl dithiocarbamate serving as an anti-aging agent and titanium pigment; raw materials of the rubber layerComprising: butyl rubber 1751, ethylene propylene diene monomer, C5 petroleum resin RT1102, stearic acid, zinc oxide, carbon black N330, ultra-fine talcum powder, accelerator M, accelerator ZDMC and antioxidant 1010. The PVC film, the adhesive layer and the rubber layer are organically combined, so that the waterproof leak-repairing adhesive tape has good waterproof sealing effect, high mechanical strength and ultraviolet irradiation resistance.
Description
Technical Field
The application relates to the field of adhesive tapes, in particular to an adhesive, a rubber layer and a waterproof leakage-repairing adhesive tape.
Background
With the development of social economy, consumers have more demands on economy and durability while improving the quality of products, and enterprises need to improve or redevelop the products in a targeted manner.
The aluminum foil butyl waterproof leakage repairing adhesive tape used in the market at present has the defects that the rubber layer is too soft, the adhesive layer flows during the use process, meanwhile, the aluminum foil lining is thinner and more brittle, and is easy to crack after being irradiated by ultraviolet rays outdoors, so that the waterproof effect is greatly reduced, and the phase change during replacement increases the cost.
In order to solve the problems, the aluminum foil lining layer needs to use a base material which has high mechanical strength and can resist ultraviolet irradiation, is suitable for outdoor thermo-oxidative aging environment, has high strength of the rubber layer, and has good adhesive performance, so that the sealing performance between the waterproof leakage-repairing adhesive tape and an adhesive surface is ensured.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provide an adhesive, a rubber layer and a waterproof leakage-repairing adhesive tape so as to solve the problems in the technical background.
In order to achieve the above object, the present application is realized by the following technical scheme:
in a first aspect, the present application provides an adhesive, the adhesive raw material comprising: thermoplastic styrene-butadiene rubber SEBS YH502, thermoplastic styrene-butadiene rubber SIS1105, hydrogenated C5 petroleum resin LH100-1, terpene resin T90, naphthenic oil, zinc dibutyl dithiocarbamate serving as an anti-aging agent and titanium pigment.
Further, the adhesive comprises the following raw materials in parts by weight: thermoplastic styrene-butadiene rubber SEBS YH50250 parts, thermoplastic styrene-butadiene rubber SIS110550 parts, hydrogenated C5 petroleum resin LH100-1 and terpene resin T90 accounting for 80-120 parts, naphthenic oil 20 parts, anti-aging agent zinc dibutyl disulfate carbamic acid 5 parts and titanium pigment 5 parts; wherein, the weight ratio of hydrogenated C5 petroleum resin LH100-1 to terpene resin T90 is 4:1.
Further, the adhesive comprises the following raw materials in parts by weight: thermoplastic styrene-butadiene rubber SEBS YH50250 parts, thermoplastic styrene-butadiene rubber SIS110550 parts, hydrogenated C5 petroleum resin LH100-1 and terpene resin T90 total 120 parts, naphthenic oil 20 parts, anti-aging agent zinc dibutyl disulfate substituted carbamic acid 5 parts and titanium pigment 5 parts; wherein, the weight ratio of hydrogenated C5 petroleum resin LH100-1 to terpene resin T90 is 4:1.
In a second aspect, the present application provides a rubber layer, the rubber layer comprising: butyl rubber 1751, ethylene propylene diene monomer, C5 petroleum resin RT1102, stearic acid, zinc oxide, carbon black N330, ultra-fine talcum powder, accelerator M, accelerator ZDMC and antioxidant 1010.
Further, the rubber layer comprises the following raw materials in parts by weight: 175170 to 80 parts of butyl rubber, 20 to 30 parts of ethylene propylene diene monomer rubber, 110220 parts of C5 petroleum resin, 2 parts of stearic acid, 5 parts of zinc oxide, N33010 parts of carbon black, 20 parts of ultrafine talcum powder, 0.5 part of accelerator M, 1 part of accelerator ZDMC and 10101 parts of antioxidant.
Further, the rubber layer comprises the following raw materials in parts by weight: the rubber layer comprises the following raw materials in percentage by weight: 175175 parts of butyl rubber, 25 parts of ethylene propylene diene monomer rubber, 110220 parts of C5 petroleum resin RT, 2 parts of stearic acid, 5 parts of zinc oxide, 33010 parts of carbon black N, 20 parts of ultrafine talcum powder, 0.5 part of accelerator M, 1 part of accelerator ZDMC and 10101 parts of antioxidant.
In a third aspect, the application provides a waterproof leakage-repairing adhesive tape, which comprises a waterproof layer, an adhesive layer, a rubber layer and an adhesive layer which are sequentially arranged, wherein the adhesive layer is prepared from the adhesive raw material in the first aspect; the rubber layer is made of the rubber layer raw material in the second aspect.
Further, the waterproof layer is a PVC film, and the PVC film comprises the following raw materials in parts by weight: 100 parts of SG3 resin, 50-60 parts of polyester plasticizer, 10 parts of filler, 0.5 part of aluminum silver paste and 0.1-0.5 part of ultraviolet absorbentPart of antioxidant W1 part, stabilizer B1 part and flame retardant Sb 2 O 3 2 parts of color chips and 0.5 part of color chips.
Further, the PVC film comprises the following raw materials in parts by weight: 100 parts of SG3 resin, 55 parts of polyester plasticizer, 10 parts of filler, 0.5 part of aluminum paste, 0.3 part of ultraviolet absorber, 1 part of antioxidant W, 1 part of stabilizer B and flame retardant Sb 2 O 3 2 parts of color chips and 0.5 part of color chips.
In a fourth aspect, the application provides a method for preparing a waterproof leak-repairing adhesive tape, which comprises the following steps:
step one, preparing a PVC film, which specifically comprises the following steps:
1.1, preparing various raw materials according to a PVC film raw material formula, putting the raw materials into a high-speed stirring tank, stirring for 3-4 minutes, uniformly stirring the mixed powder, and controlling the temperature to be less than 100 ℃;
1.2, discharging the mixed powder in the stirring tank into an internal mixer for pressurizing and stirring, controlling the temperature to be about 140 ℃, and determining the discharging frequency according to the size on a rolling mill;
1.3, setting the temperature of a rolling mill to 170 ℃, controlling the rotating speed to about 1000rpm, and conveying the sizing materials to a filter after the sizing materials are evenly mixed by a cutter;
1.4, setting the temperature of a rolling mill to 160 ℃, controlling the rotating speed to about 1100rpm, and filtering impurities by using a filter screen;
1.5, setting the temperature of a rolling machine to 170 ℃, properly reducing the temperature of a lower roller, and adjusting the thickness and the width of the PVC film according to the requirement to prepare the required specification;
step two, preparing an adhesive layer, which specifically comprises the following steps:
2.1, raising the temperature of the reaction kettle to 150-155 ℃, sequentially adding naphthenic oil, thermoplastic styrene-butadiene rubber SEBS YH502 and thermoplastic styrene-butadiene rubber SIS1105 according to the raw material formula of the adhesive, charging nitrogen for protection, and stirring for 20-30 minutes to enable the rubber and the oil to be fully melted;
2.2, sequentially adding hydrogenated C5 petroleum resin LH100-1, terpene resin T90, anti-aging agent dibutyl zinc dithiocarbamate and titanium dioxide according to the raw material formula of the adhesive, and continuously stirring for 15-20 minutes under the protection of nitrogen so as to fully melt the mixture;
2.3, filling a light release film in the molding container, injecting the adhesive in a molten state into the molding container, and packaging for standby after the adhesive is fully cooled and solidified;
step three, rubber layer preparation, specifically:
3.1, adjusting the roll gap of an open mill to 2mm, thinning butyl rubber 1751 and ethylene propylene diene monomer rubber on the open mill for 3-4 times according to the raw material formula of the rubber layer, rolling into rubber barrels, and naturally storing for 8-24 hours;
3.2, sequentially adding the butyl rubber 1751 plasticated in the step 3.1 and ethylene propylene diene monomer into a banburying chamber of an internal mixer, and sequentially adding the C5 petroleum resin RT1102, the carbon black N330, the accelerator M, the accelerator ZDMC and the antioxidant 1010 according to a rubber layer raw material formula, and banburying for 7-8 minutes;
3.3, sequentially adding stearic acid, zinc oxide and 1/2 amount of ultra-fine talcum powder into an internal mixer according to the raw material formula of the rubber layer, and carrying out internal mixing for 2 minutes;
3.4, sequentially adding the rest superfine talcum powder into a banburying chamber of an internal mixer, and banburying for 2 minutes;
pouring out the mixed materials, carrying out thin pass through the open mill for 5-6 times, stacking films with the thickness of 5-8 mm, and storing for 24 hours in a natural environment;
3.6, the temperatures of a front roller and an upper roller of the calender are raised to 100-110 ℃, and the temperatures of a middle roller and a lower roller are raised to 110-130 ℃;
3.7, thin-passing the rubber sheet in 2.5 on an open mill, and tabletting the rubber sheet on a calender after the temperature reaches 70 ℃ to a thickness of 1mm plus or minus 0.05mm;
3.8 rolling the film into a semi-finished shaft for standby by taking the light release type isolating film as an isolating layer;
step four, preparing a waterproof leak-repairing adhesive tape, which specifically comprises the following steps:
4.1, arranging a coating machine, so that the waterproof and leak-repairing adhesive tape obtained by coating has a waterproof layer, an adhesive layer, a rubber layer, an adhesive layer and a light release barrier film in sequence from top to bottom;
4.2, heating the glue box of the coater to about 160 ℃, heating the coating die head to about 150 ℃, and coating and rolling according to the coating mode of the step 4.1, wherein the coating and gluing amount is 80-120 g/square meter, taking care of cooling and controlling the tension;
4.3, after the semi-finished shaft is stored for 24 hours, cutting is carried out, and a cutter is kept to be sufficiently lubricated during cutting, so that the disc surface is prevented from being glued due to friction of the disc surface of the adhesive tape;
4.4, when packaging, the two end surfaces of the adhesive tape are separated by paper or film with release function, and then are packaged by thermoplastic PE film.
In the application, the proportion of the PVC film plasticizer and the ultraviolet absorber is determined in the research accumulation of many years of work: the polyester plasticizer provides flexibility for the PVC film, and compared with the common plasticizer, the plastic product has better weather resistance and strength, but has higher cost, the balance between quality and cost is sought, the required flexibility is achieved when the consumption is 55 parts, and the final determination is 55 parts. The ultraviolet absorber is a PVC film which absorbs ultraviolet light under the irradiation of sunlight, delays the aging of the PVC film by the sunlight, and the recommended dosage is not more than 0.5 part, in the range, the larger the dosage is, the better the effect is, but the price of the material is also higher, the performance improvement range from 0.3 part to 0.5 part is reduced, and the material is determined to be 0.3 part by comprehensive consideration. A moderate proportion can achieve higher cost performance.
In the application, the inventor determines the category and proportion of the adhesive rubber in the years of work research accumulation: the SIS1105 rubber has relatively poor heat and oxygen aging resistance due to unsaturated bonds, and meanwhile, the glass transition temperature of the rubber chain segment is relatively low, the initial viscosity is good, and the cost is lower than that of SEBS YH502 rubber; the SEBS YH502 rubber has hydrogenated unsaturated bonds, can be prepared into an adhesive with oxidation resistance and ultraviolet light aging resistance, and still can keep good viscosity after heat, oxygen and light aging, but the saturated rubber chain segment has higher vitrification temperature, poorer initial viscosity and high material cost; the performance and the economy are comprehensively balanced, the two rubbers are matched with each other according to the proportion of half of each rubber, the synergistic effect is achieved, and the cost performance is high. The category and proportion of the adhesive resin are determined: terpene resin is influenced by various factors such as production places, climate and the like due to the natural properties, and has relatively poor natural aging resistance, inferior quality stability compared with petroleum resin, and excellent initial adhesion performance; the petroleum resin has stronger stability, once the petroleum resin is shaped by petroleum refining processing and a process technology, the consistency of the product quality is ensured sufficiently, and the cohesion is superior to that of terpene resin; in order to ensure the excellent adhesive property of the adhesive layer, terpene resin is used according to the proportion of 25% of petroleum resin, and the initial adhesive property of the adhesive layer is improved on the premise of small change of the holding adhesive property. The different proportions of rubber and resin in the adhesive aim at obtaining a formula with relatively balanced initial viscosity, holding viscosity and peel strength through different proportions: in a certain range, the larger the relative dosage of the resin is, the better the initial viscosity and the peeling strength are, but the worse the holding viscosity is, the adhesive layer is easy to flow; on the contrary, the smaller the relative amount of the resin is, the better the holding viscosity is, but the worse the initial viscosity and the peeling strength are, the lower the bonding efficiency in the construction process is; a moderate proportion can obtain more balanced performance of the adhesive.
In the application, the proportion of rubber layer rubber to resin is determined in the research accumulation of years of work: the main body with the rubber layer sealing function is cooperated with the adhesive layer to form a whole, so that the main body has certain strength to prevent flowing, has certain softness to be convenient for closely attaching an adherend, and keeps good sealing property; the rubber dosage is too large, the rubber layer hardness is relatively large, the attaching difficulty in construction is large, and the performance is particularly obvious in low-temperature seasons; the resin consumption is too large, the rubber layer is too soft, and the flowability of the rubber layer is enhanced under the action of external force extrusion or heat, so that the rubber layer is easy to flow; the resin with the dosage of 20 percent can improve the flexibility and the adhesive property of the rubber layer and does not influence the strength of the rubber layer obviously. The different proportions of the butyl rubber and the ethylene propylene diene monomer rubber in the rubber layer aim to obtain a formula with relatively balanced softness and mechanical properties through different proportions: the greater the relative amount of butyl rubber, the better the softness, the higher the elongation but the lower the tensile strength; the larger the relative dosage of the ethylene propylene diene monomer is, the larger the tensile strength is, but the lower the softness and the elongation are; a moderate proportion can obtain the relatively balanced performance of the rubber layer.
Compared with the prior art, the application has the beneficial effects that:
1, the PVC film achieves a better balance state of mechanical strength and flexibility due to the use of a polyester plasticizer, and provides good mechanical protection for the leakage repairing adhesive tape; the aluminum paste is added, so that sunlight can be reflected, and the phenomenon that adhesive layers flow due to the fact that the temperature of the adhesive tape is too high is avoided; the ultraviolet absorber is added to absorb ultraviolet rays in sunlight, so that the ageing speed of the PVC film is greatly delayed, and the service life of the adhesive tape is prolonged.
2. The SEBS YH502 rubber is introduced into the adhesive layer, so that the oxidation resistance and ultraviolet ageing resistance of the adhesive layer are improved, the adhesive tape can still keep reliable adhesive property after being used for a long time, and the ageing of the waterproof capability of the adhesive tape is prolonged.
3. In the rubber layer, the ethylene propylene diene monomer rubber contributes to good mechanical strength, avoids the influence of deformation of the rubber belt in the construction process on the use and functional failure caused by flowing of the rubber layer in high-temperature seasons, and simultaneously provides more excellent waterproof capability and service life for the rubber belt.
4. The PVC film is used for replacing the aluminum foil, so that the problems that the aluminum foil lining is thinner and more fragile, and is easy to crack after being irradiated by ultraviolet rays outdoors, so that the waterproof effect is greatly reduced, the service life of the product leather is greatly prolonged, and the cost for replacing the waterproof adhesive tape is reduced; the adhesive layer with good adhesive performance and the rubber layer with both hardness and softness avoid hidden danger of adhesive layer flowing during the use of the adhesive tape, ensure the tightness between the waterproof leakage-repairing adhesive tape and the adhesive surface and play a good waterproof sealing role.
The PVC film, the adhesive layer and the rubber layer are organically combined, so that the waterproof leak-repairing adhesive tape has good waterproof sealing effect, high mechanical strength and ultraviolet irradiation resistance.
Drawings
FIG. 1 is a schematic structural view of a waterproof leak-repairing adhesive tape of the present application;
FIG. 2 is a schematic illustration of a waterproof and leak-repairing adhesive tape coating according to the present application;
in the figure, 1, a waterproof layer; 2. an adhesive layer; 3. a rubber layer; 4. light release type isolating film.
Detailed Description
Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
Example 1
The embodiment provides a waterproof leakage-repairing adhesive tape, which comprises a waterproof layer, an adhesive layer, a rubber layer and an adhesive layer which are sequentially arranged, wherein the adhesive layer is prepared from adhesive raw materials; the rubber layer is made of rubber layer raw materials.
The waterproof layer is a PVC film, and the PVC film comprises the following raw materials in parts by weight: 100 parts of SG3 resin, 55 parts of polyester plasticizer, 10 parts of filler, 0.5 part of aluminum paste, 0.3 part of ultraviolet absorber, 1 part of antioxidant W, 1 part of stabilizer B and flame retardant Sb 2 O 3 2 parts of color chips and 0.5 part of color chips.
The adhesive comprises the following raw materials in parts by weight: thermoplastic styrene-butadiene rubber SEBS YH50250 parts, thermoplastic styrene-butadiene rubber SIS110550 parts, hydrogenated C5 petroleum resin LH100-1 and terpene resin T90 total 120 parts, naphthenic oil 20 parts, anti-aging agent zinc dibutyl disulfate substituted carbamic acid 5 parts and titanium pigment 5 parts; wherein, the weight ratio of hydrogenated C5 petroleum resin LH100-1 to terpene resin T90 is 4:1.
The rubber layer comprises the following raw materials in parts by weight: 175175 parts of butyl rubber, 25 parts of ethylene propylene diene monomer rubber, 110220 parts of C5 petroleum resin RT, 2 parts of stearic acid, 5 parts of zinc oxide, 33010 parts of carbon black N, 20 parts of ultrafine talcum powder, 0.5 part of accelerator M, 1 part of accelerator ZDMC and 10101 parts of antioxidant.
The application is characterized by partial raw material sources:
thermoplastic styrene-butadiene rubber SEBS YH502, thermoplastic styrene-butadiene rubber SIS1105: petrifaction of the baling;
hydrogenated C5 petroleum resin LH100-1: lanzhou petrochemical;
naphthenic oil: xinjiang Kelamani;
butyl rubber 1751: petrifaction of Yanjing;
ethylene propylene diene monomer rubber: a Japanese import;
c5 petroleum resin RT1102: shanghai three si;
accelerator M, accelerator ZDMC: tianjin mao Feng chemical engineering Co., ltd;
antioxidant 1010, antioxidant W: tianjin Li Anlong chemical Co., ltd;
SG3 resin: qilu petrochemical industry;
aluminum silver paste: xuangyang aluminum silver stock Co., ltd;
ultraviolet absorber: imported in the united states.
The application provides a preparation method of a waterproof leak-repairing adhesive tape, which comprises the following steps:
step one, preparing a PVC film, which specifically comprises the following steps:
1.1, preparing various raw materials according to a PVC film raw material formula, putting the raw materials into a high-speed stirring tank, stirring for 3-4 minutes, uniformly stirring the mixed powder, and controlling the temperature to be less than 100 ℃;
1.2, discharging the mixed powder in the stirring tank into an internal mixer for pressurizing and stirring, controlling the temperature to be about 140 ℃, and determining the discharging frequency according to the size on a rolling mill;
1.3, setting the temperature of a rolling mill to 170 ℃, controlling the rotating speed to about 1000rpm, and conveying the sizing materials to a filter after the sizing materials are evenly mixed by a cutter;
1.4, setting the temperature of a rolling mill to 160 ℃, controlling the rotating speed to about 1100rpm, and filtering impurities by using a filter screen;
1.5, setting the temperature of a rolling machine to 170 ℃, properly reducing the temperature of a lower roller, and adjusting the thickness and the width of the PVC film according to the requirement to prepare the required specification;
step two, preparing an adhesive layer, which specifically comprises the following steps:
2.1, raising the temperature of the reaction kettle to 150-155 ℃, sequentially adding naphthenic oil, thermoplastic styrene-butadiene rubber SEBS YH502 and thermoplastic styrene-butadiene rubber SIS1105 according to the raw material formula of the adhesive, charging nitrogen for protection, and stirring for 20-30 minutes to enable the rubber and the oil to be fully melted;
2.2, sequentially adding hydrogenated C5 petroleum resin LH100-1, terpene resin T90, anti-aging agent dibutyl zinc dithiocarbamate and titanium dioxide according to the raw material formula of the adhesive, and continuously stirring for 15-20 minutes under the protection of nitrogen so as to fully melt the mixture;
2.3, filling a light release film in the molding container, injecting the adhesive in a molten state into the molding container, and packaging for standby after the adhesive is fully cooled and solidified;
step three, rubber layer preparation, specifically:
3.1, adjusting the roll gap of an open mill to 2mm, thinning butyl rubber 1751 and ethylene propylene diene monomer rubber on the open mill for 3-4 times according to the raw material formula of the rubber layer, rolling into rubber barrels, and naturally storing for 8-24 hours;
3.2, sequentially adding the butyl rubber 1751 plasticated in the step 3.1 and ethylene propylene diene monomer into a banburying chamber of an internal mixer, and sequentially adding the C5 petroleum resin RT1102, the carbon black N330, the accelerator M, the accelerator ZDMC and the antioxidant 1010 according to a rubber layer raw material formula, and banburying for 7-8 minutes;
3.3, sequentially adding stearic acid, zinc oxide and 1/2 amount of ultra-fine talcum powder into an internal mixer according to the raw material formula of the rubber layer, and carrying out internal mixing for 2 minutes;
3.4, sequentially adding the rest superfine talcum powder into a banburying chamber of an internal mixer, and banburying for 2 minutes;
pouring out the mixed materials, carrying out thin pass through the open mill for 5-6 times, stacking films with the thickness of 5-8 mm, and storing for 24 hours in a natural environment;
3.6, the temperatures of a front roller and an upper roller of the calender are raised to 100-110 ℃, and the temperatures of a middle roller and a lower roller are raised to 110-130 ℃;
3.7, thin-passing the rubber sheet in 2.5 on an open mill, and tabletting the rubber sheet on a calender after the temperature reaches 70 ℃ to a thickness of 1mm plus or minus 0.05mm;
3.8 rolling the film into a semi-finished shaft for standby by taking the light release type isolating film as an isolating layer;
step four, preparing a waterproof leak-repairing adhesive tape, which specifically comprises the following steps:
4.1 arranging a coating machine, wherein a specific coating mode is shown in figure 2, so that the structure (shown in figure 1) of the waterproof leakage-repairing adhesive tape obtained by coating is sequentially provided with a waterproof layer 1, an adhesive layer 2, a rubber layer 3, an adhesive layer 2 and a light release barrier film 4 from top to bottom;
in FIG. 2, the film roll is wound with a rubber layer and a light release film;
4.2, heating the glue box of the coater to about 160 ℃, heating the coating die head to about 150 ℃, and coating and rolling according to the coating mode of the step 4.1, wherein the coating and gluing amount is 115+/-5 g/square meter, taking care of cooling and controlling the tension;
4.3, after the semi-finished shaft is stored for 24 hours, cutting is carried out, and a cutter is kept to be sufficiently lubricated during cutting, so that the disc surface is prevented from being glued due to friction of the disc surface of the adhesive tape;
4.4, when packaging, the two end surfaces of the adhesive tape are separated by paper or film with release function, and then are packaged by thermoplastic PE film.
Examples 2 and 3 are similar to example 1 in that the contents of the components contained in each of the PVC film, the adhesive layer and the rubber layer are unchanged, wherein the PVC film comprises the following raw materials in parts by weight: 100 parts of SG3 resin, 55 parts of polyester plasticizer, 10 parts of filler, 0.5 part of aluminum paste, 0.3 part of ultraviolet absorber, 1 part of antioxidant W, 1 part of stabilizer B and flame retardant Sb 2 O 3 2 parts of color chips and 0.5 part of color chips; the adhesive layer comprises the following raw materials in parts by weight: thermoplastic styrene-butadiene rubber SEBS YH50250 parts, thermoplastic styrene-butadiene rubber SIS110550 parts, hydrogenated C5 petroleum resin LH100-1 and terpene resin T90 total 120 parts, naphthenic oil 20 parts, anti-aging agent zinc dibutyl disulfate substituted carbamic acid 5 parts and titanium pigment 5 parts; wherein, hydrogenated C5 petroleum resin LH100-1: the weight ratio of terpene resin T90 was 4:1.
The rubber layer comprises the following raw materials in parts by weight: 175175 parts of butyl rubber, 25 parts of ethylene propylene diene monomer rubber, 110220 parts of C5 petroleum resin RT, 2 parts of stearic acid, 5 parts of zinc oxide, 33010 parts of carbon black N, 20 parts of ultrafine talcum powder, 0.5 part of accelerator M, 1 part of accelerator ZDMC and 10101 parts of antioxidant.
The differences in the amounts of applied glue are shown in Table 1 for examples 1-3.
TABLE 1
| Discriminating characteristics | Example 1 | Example 2 | Example 3 |
| Coating and gluing amount (g/-square meter) | 115±5 | 100±5 | 85±5 |
The waterproof leakage repairing adhesive tapes obtained in examples 1 to 3 were tested by using an electronic peeling tester, a holding viscosity tester, a constant temperature drying oven, etc. The test results are shown in Table 2.
TABLE 2
Note 1: laboratory method 1-A clean square glass plate with a side length of 15-20cm and a thickness of 2-4 mm is taken as a carrier, the surface of the glass plate is cleaned by using a cleaning solvent specified in GB/T2792-2014, a waterproof leakage-repairing adhesive tape sample with a width of 20mm is removed from a separation film, is adhered to the glass plate in parallel with the plate side, a stripping test sample is manufactured and rolled, and then the glass plate is vertically placed into a constant temperature drying oven with a temperature of 80+/-2 ℃ for 2 hours, wherein the long side of the adhesive tape sample is vertical to a chassis of the drying oven. Taking out and cooling to room temperature, and observing whether the adhesive layer flows, cracks and deforms.
And (2) injection: laboratory method 2-A piece of soft silica gel sheet with the length of 20cm, the width of 5cm and the thickness of 6-8mm is taken as a carrier, the surface of a glass plate is cleaned by using a cleaning solvent specified in GB/T2792-2014, a waterproof leakage-repairing adhesive tape sample with the width of 20mm is removed from an isolating film, is adhered to the silica gel sheet in parallel with the plate edge, and is manufactured and rolled together with a stripping test sample, and then the silica gel sheet is horizontally placed into a low-temperature box with the temperature of minus 20 ℃ for treatment for 72 hours, and the long edge of the adhesive tape sample faces upwards. After the treatment, at the temperature, the silica gel sheet is subjected to 180-degree bending test around a steel rod with the diameter of 20mm, and immediately returns after the first bending, and then returns to the reverse direction for the second time, immediately returns to the reverse direction, and then returns to the room temperature after being taken out, and whether cracks exist on the surface of the adhesive tape is observed.
And (3) injection: and 3, in a laboratory method, two pieces of smooth color steel tiles with the length of 15cm and the width of 5cm are taken as carriers, the long sides of the two pieces of color steel tiles are placed in parallel and overlapped by about 5mm, a piece of napkin paper with the length of 10cm and the width of 2cm is placed on the joint of the two pieces of color steel tiles, then a waterproof leakage-repairing adhesive tape with the width of 5cm is used for removing the isolation film, the joint of the two pieces of color steel tiles is stuck for one week, the napkin paper is ensured to be wrapped in the adhesive layer, and the napkin paper is rolled once by a standard compression roller. Putting the steel plate into tap water for 96 hours, taking out, naturally airing surface water, carefully cutting the adhesive layer by using a clamping plate knife, and observing whether the napkin absorbs water or not, wherein the tightness is better when the water absorption is less.
As is clear from Table 2, the adhesive tape performance was optimal when the amount of applied glue was 100.+ -.5 g/square meter.
The application will be further described with reference to the formulation ratio of PVC film, adhesive and rubber layer.
Example 4 PVC film
This example provides a PVC film, and a method for preparing the PVC film is similar to that of example 1, wherein 4 PVC films are prepared according to different PVC film raw material formulas, and specific PVC film formula raw materials are shown in Table 3.
TABLE 3 Table 3
The PVC film samples obtained by 4 formulations in Table 3 are subjected to comparative tests by using a tensile machine, an ultraviolet aging tester and a spotlight, and the test results are shown in Table 4.
TABLE 4 Table 4
And (4) injection: laboratory method 4-cutting a film with the length of 10cm and the width of 10cm, irradiating the surface of the film for 20 minutes by using a filament lamp with the power of 200W and 20cm above the middle of the film, covering the filament lamp and the film sample by using a cuboid box with the length of 40cm and the width of 20cm at the bottom edge during irradiation, and measuring the surface temperature of the film with an infrared thermometer at the distance of 20cm after irradiation.
As can be seen from Table 4, the tensile strength of the conventional PVC film formulation (formulations 1-0) was significantly lower than that of the other three formulations, since the polyester plasticizer was not used; the mechanical property of the UV-cured product is 50% of the initial value after UV aging without using an ultraviolet absorber, and the mechanical property of the UV-cured product reaches 65% -93% of the initial value after use; the aluminum paste is not used, the light reflecting effect is poor, the heat absorption is faster, and the temperature is higher. So the performance is obviously improved after the three materials are used. In addition, the comprehensive performance of the formula 1-1 is obviously inferior to that of the formulas 1-2 and 1-3, although the formula 1-3 has advantages compared with the formula 1-2, the advantages are not obvious, the performance improvement range is not large, the cost of the formula 1-3 is high, and the formula 1-2 is the optimal choice in comprehensive consideration.
Example 5 Adhesives
The preparation method of the adhesive is similar to that of the embodiment 1, and 4 adhesives are prepared according to different adhesive raw material formulas, and specific adhesive formula raw materials are shown in table 5.
TABLE 5
Coating the adhesive obtained by 4 formulations in Table 5 on two sides of the same rubber sheet (formulation 3-2 of example 6) with the adhesive coating amount of 100 g/square meter, and coating one side of the adhesive with the ultraviolet-resistant PVC film (formulation 1-2 of example 4) to obtain a waterproof leakage-repairing film; then, an electronic peeling tester, a viscosity tester and a constant temperature drying oven are adopted for testing, and the test results are shown in Table 6.
TABLE 6
As can be seen from Table 6, compared with the other three formulas, the formula (formula 2-0) of the common adhesive layer has significantly smaller peel strength and holding viscosity because the thermoplastic styrene-butadiene rubber SEBS YH502 is not used, and the adhesive layer flows after heat treatment, so that the use requirement of the waterproof leakage-repairing adhesive tape is not met; and the performance is obviously improved after the use. In addition, the adhesive property of the formula 2-3 is obviously better than that of the formulas 2-1 and 2-2, and the sealing property is also optimal as the most important performance.
Example 6 rubber layer
This example provides a rubber sheet comprising a rubber layer, the rubber layer was prepared in a similar manner to example 1, and 4 rubber layers were prepared according to different rubber layer raw material formulations, the specific rubber layer formulation raw materials being shown in table 7.
TABLE 7
Cutting the rubber sheets obtained by the 4 formulas in Table 7 into 25mm width, and testing tensile strength and elongation by using a tensile machine; the rubber sheets obtained by 4 formulations in Table 7 are coated with the same adhesive on both sides (formulations 2-3 of example 5) with the adhesive amount of 100 g/square meter, and one side of the rubber sheets is covered with the ultraviolet-resistant PVC film (formulations 1-2 of example 4) to obtain waterproof leak-repairing films; then, other indexes are tested by adopting an electronic peeling tester, a viscosity holding tester and a constant temperature drying oven, and the test results are shown in Table 8.
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As shown in Table 8, compared with the other three formulas, the general rubber layer formula (formula 3-0) has obviously smaller tensile strength, adhesive tape peel strength and holding viscosity of the rubber layer without ethylene propylene diene monomer rubber, and the adhesive layer flows after heat treatment, so that the use requirement of the waterproof leakage-repairing adhesive tape is not met; and the performance is obviously improved after the use. In addition, each index of the formula 3-2 is moderate, the key performances such as sealability, convenience in pasting during construction, heat resistance and the like are comprehensively considered, meanwhile, the adhesive tape is ensured to have enough mechanical strength, the formula 3-2 is moderate in softness, easy to paste during construction, good in heat resistance, good in sealability and optimal in comprehensive performance.
The foregoing examples merely illustrate specific embodiments of the application, which are described in greater detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (5)
1. The adhesive is characterized by comprising the following raw materials in parts by weight: 50 parts of thermoplastic styrene-butadiene rubber SEBS YH502, 110550 parts of thermoplastic styrene-butadiene rubber SIS, 80-120 parts of hydrogenated C5 petroleum resin LH100-1 and terpene resin T90, 20 parts of naphthenic oil, 5 parts of anti-aging agent zinc dibutyldisulfate carbamic acid and 5 parts of titanium pigment; wherein, the weight ratio of hydrogenated C5 petroleum resin LH100-1 to terpene resin T90 is 4:1.
2. The adhesive according to claim 1, wherein the adhesive comprises the following raw materials in parts by weight: thermoplastic styrene-butadiene rubber SEBS YH50250 parts, thermoplastic styrene-butadiene rubber SIS110550 parts, hydrogenated C5 petroleum resin LH100-1 and terpene resin T90 total 120 parts, naphthenic oil 20 parts, anti-aging agent zinc dibutyl disulfate substituted carbamic acid 5 parts and titanium pigment 5 parts; wherein, the weight ratio of hydrogenated C5 petroleum resin LH100-1 to terpene resin T90 is 4:1.
3. The rubber layer comprises the following raw materials in parts by weight: 1751-80 parts of butyl rubber, 20-30 parts of ethylene propylene diene monomer rubber, 110220 parts of C5 petroleum resin, 2 parts of stearic acid, 5 parts of zinc oxide, 330 parts of carbon black N, 20 parts of ultrafine talcum powder, 0.5 part of accelerator M, 1 part of accelerator ZDMC and 10101 parts of antioxidant.
4. A rubber layer according to claim 3, wherein the rubber layer comprises the following raw materials in parts by weight: the rubber layer comprises the following raw materials in percentage by weight: 175175 parts of butyl rubber, 25 parts of ethylene propylene diene monomer rubber, 110220 parts of C5 petroleum resin RT, 2 parts of stearic acid, 5 parts of zinc oxide, 330 parts of carbon black N, 20 parts of ultrafine talcum powder, 0.5 part of accelerator M, 1 part of accelerator ZDMC and 10101 parts of antioxidant.
5. A waterproof leak-repairing adhesive tape, which is characterized by comprising a waterproof layer, an adhesive layer, a rubber layer and an adhesive layer which are sequentially arranged, wherein the adhesive layer is prepared from the adhesive raw material of claim 1; the rubber layer is made of the rubber layer raw material of claim 3.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602278A (en) * | 2013-10-28 | 2014-02-26 | 江苏达胜热缩材料有限公司 | Internal and external adhesive tape for pipeline anticorrosion |
| WO2018130194A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing method, rubber products applying composite, and manufacturing method |
| CN114350279A (en) * | 2022-01-25 | 2022-04-15 | 舒氏集团有限公司 | Three-component composite pressure-sensitive adhesive, preparation method and adhesive tape |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602278A (en) * | 2013-10-28 | 2014-02-26 | 江苏达胜热缩材料有限公司 | Internal and external adhesive tape for pipeline anticorrosion |
| WO2018130194A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing method, rubber products applying composite, and manufacturing method |
| CN114350279A (en) * | 2022-01-25 | 2022-04-15 | 舒氏集团有限公司 | Three-component composite pressure-sensitive adhesive, preparation method and adhesive tape |
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