WO2017140125A1

WO2017140125A1 - Manufacturing method for anticorrosive nonmetal skylight panel made of pre-woven element having diversion layer

Info

Publication number: WO2017140125A1
Application number: PCT/CN2016/103794
Authority: WO
Inventors: 梅天诚
Original assignee: 苏州振瑞昌材料科技有限公司
Priority date: 2016-02-19
Filing date: 2016-10-28
Publication date: 2017-08-24
Also published as: CN105711199A; CN105711199B

Abstract

A manufacturing method for an anticorrosive nonmetal skylight panel made of a pre-woven element having a diversion layer, comprising the following three steps: manufacturing of a glass fiber felt pre-woven element, preparation of a hybrid resin system, and molding preparation of the anticorrosive nonmetal skylight panel. The anticorrosive nonmetal skylight panel comprises the glass fiber felt pre-woven element and the hybrid resin system, where the glass fiber felt pre-woven element comprises layered glass fiber felts, a diversion layer fiber fabric, and interlayer continuous fibers, the diversion layer fiber fabric is arranged at the middle layer position of the layered glass fiber felts, and the layered fiber glass felts are stitched together with the diversion layer fiber fabric by the interlayer continuous fibers.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of anticorrosive lighting panels, and more particularly to a non-metal made of a pre-woven fabric with a flow guiding layer. A method of manufacturing an anticorrosive lighting panel. BACKGROUND OF THE INVENTION With the continuous development of green building technology, anti-corrosion lighting panels have been widely used in more and more construction fields and have become one of the necessary building materials. In some large-scale factories, such as chemical plants, electroplating plants, pickling plants, tanneries, fertilizer plants, paper mills, and other buildings with high corrosive industrial and warehouse buildings, the use of anti-corrosion and lighting panels can not only achieve corrosion protection, but also save energy. The role, but also has a neat, beautiful, environmentally friendly role.

In the early development, anti-corrosion lighting panels were mainly made of metal plates such as color steel plates, etc. These products have excellent light transmission properties and thermal insulation properties. However, as an organic material, its flame retardancy, weather resistance and the like limit its application in lighting panels.

With the wide application of anti-corrosion panels, especially some large-scale buildings adopt arc-shaped curved anti-corrosion panels, which require high-strength anti-corrosion panels, and at the same time, the broken nails and nail hole wear caused by tensile force will be seriously deteriorated after installation and use. In the prior art, the non-metallic anticorrosive plate with a thickness of 2 mm or more has a problem of broken nails caused by tensile force and severe aging of nail hole wear after installation on a circular arc roof, and higher requirements are imposed on the current anticorrosive plate. Summary of the invention

The present invention provides a method of manufacturing a non-metallic anticorrosive lighting panel made of a pre-woven fabric with a flow guiding layer, which can be applied to a dome structure having a large curvature to solve problems such as fracture, corrosion, flammability and aging.

In order to solve the above technical problems, the technical solution adopted by the present invention is as follows. A method for manufacturing a non-metallic anticorrosive lighting panel with a drainage layer comprises the following three steps:

1) Fabrication of glass fiber mat pre-wovens: Firstly, the glass fiber mat is layered, then the baffle fiber cloth is added to the middle layer of the layered glass mat, and then the high-strength continuous carbon fiber yarn is applied by sewing technique. Separating the layered glass fiber mat and the drainage layer fiber cloth to obtain the glass fiber mat pre-woven reinforced between carbon fiber layers;

2) Preparation of hybrid resin system: In the unsaturated resin, add surface treated aluminum hydroxide flame retardant, UV absorber and pigment paste, stir evenly, then add curing agent and accelerator for secondary mixing and mixing. Evenly producing the hybrid resin system;

3) molding preparation of the non-metallic anti-corrosion lighting plate: firstly, the hybrid resin system prepared by the step 2) is transported by a transfer pump onto the PET lower film and the same as that obtained by the step 1) The glass fiber felt pre-weave is soaked, completely penetrated into the calendering zone, and pressed onto the PET film; then enters the bending mold of the heating forming zone to perform high-temperature pultrusion; and then pulls the formed composite material through the tractor And cooling, and finally cutting as required to obtain the non-metallic anticorrosive lighting panel.

Further, in step 2), the curing agent and the accelerator are added by a proportional pump. Further, in step 2), the surface treated aluminum hydroxide flame retardant is dissolved in ethanol by interfacial coupling agent KH550, and then the aluminum hydroxide flame retardant is dissolved in the interface coupling agent solution. In the middle, after stirring uniformly, the ethanol solvent is distilled off to obtain.

Further, in step 3), the tractor is a top-and-down coupled rubber roller tractor. Further, a fan circulation duct for cooling the lighting panel is further provided at the upper and lower positions of the tractor.

Further, in step 3), the cutting is completed by a cutting zone, the cutting zone comprising a cutter, a measuring system, a dust recovery system, and a control system simultaneously connected to the tool and the measuring system .

Due to the above technical solution, the beneficial effects of the invention are as follows: a fiber cloth having a reinforcing effect is used as a flow guiding layer, and the fiber mat can be uniformly impregnated during the resin impregnation process, so that the obtained composite material has stable performance; Structural design, using carbon fiber interpenetration in the inter-fiber structure, the composite material non-metallic anti-corrosion board product can increase the longitudinal strength and impact strength by at least 50%; combined with aluminum hydroxide high-efficiency flame retardant and unsaturated polyester Resin Inorganic/organic hybrid technology, prepared composite non-metallic anti-corrosion board products have first-grade flame retardancy

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing a fiber pre-woven member of a bakelite board in the present invention.

Description of the reference signs:

1. Glass fiber mat, 2. Diversion layer fiber cloth,

3. High-strength continuous carbon fiber yarn. BEST MODE FOR CARRYING OUT THE INVENTION For the purpose of full disclosure, the present invention will be further described in detail below with reference to the embodiments. It is understood that the specific embodiments described below are merely illustrative of the invention and are not intended to limit the scope of the invention.

The invention discloses a novel structure reinforced non-metal anti-corrosion board lighting board preparation method, comprising the following steps:

Step 1 Glass fiber pre-woven parts manufacturing

The glass fiber mat 1 is first layered, and then the baffle fiber cloth 2 is added to the intermediate layer of the layered glass fiber mat 2, and then the layer is laid by high-strength continuous carbon fiber yarn 3 by sewing technique. The glass fiber mat 1 and the baffle fiber cloth 2 are sewn together to produce the glass fiber mat pre-woven reinforced between carbon fiber layers.

The baffle fiber cloth can be made of a polyolefin fiber unidirectional cloth, such as a polypropylene fiber unidirectional cloth or a polyethylene fiber unidirectional cloth. The fiber has a smooth surface rod-like structure, is light and high in strength, and has good wear resistance. Polypropylene fiber unidirectional cloth is preferred.

The baffle fiber cloth may also be a carbon fiber unidirectional cloth which has a large amount of carbon fiber filaments in one direction (usually warp direction) and a small amount and usually fine carbon fiber filaments in the other direction.

The baffle fiber cloth can also employ extruded high molecular weight polyolefin mesh cloth having high permeability, which facilitates the flow and penetration of the resin.

Step 2 Preparation of organic-inorganic hybrid resin system The aluminum hydroxide flame retardant is surface-treated with an interface coupling agent to enhance the adhesion of the organic-inorganic interface. A surface-treated aluminum hydroxide flame retardant, an ultraviolet absorber, a pigment paste, or the like is added to the unsaturated resin, and the mixture is uniformly stirred. Then, the curing agent and the accelerator are added to the second pump by a proportional pump, and the organic/inorganic hybrid resin system is prepared by mixing uniformly.

Step 3: Preparation of non-metallic anti-corrosion board for composite materials

The mixed organic/inorganic hybrid resin is transported to the PET stretched film (lower film) by a transfer pump to be impregnated with the glass fiber chopped strand mat (high-strength carbon fiber yarn is contained between the two layers of glass fiber mat), and is completely impregnated and then enters. In the calendering zone, the PET film (upper film) is pressed, and then enters the heating forming zone, and the reverse molding die of about 10 meters is set in the heating forming zone (for effecting the natural bending curvature after the lighting plate is formed), An upper and lower coupling type rubber roller tractor is arranged at the outlet of the heating forming zone. The upper and lower positions of the tractor are provided with a fan circulation pipe for cooling the lighting plate. The cutting area includes: a tool, a measuring system, a dust recovery system (a cutting tool and a plate length, and a thickness measuring system are simultaneously connected to the control system). An automatic lighting panel storage unit (two sets of alternate use) is provided after the cutting area.

By redesigning the impregnation zone, heating forming zone, traction zone and cooling cutting zone of the production line, the process of exhibiting natural bending curvature after forming the non-metallic anti-corrosion lighting plate is realized, overcoming the non-metal of 2 mm and above thickness in the prior art. The anti-corrosion plate is seriously deteriorated due to the tensile force caused by the tensile force and the nail hole wear after the installation of the arc-shaped roof. At the same time, according to the product design needs, the resin system formula can be adjusted to increase the viscosity of the resin, and the purpose of reducing the fluidity to ensure the uniformity of the product after molding is achieved.

The above resin system and glass fiber pre-woven fabric can be arbitrarily combined without departing from the ordinary knowledge in the art, and the preferred examples of the present invention can be obtained.

Example 1

Four layers of fiberglass mat 1 are layered, and then a suture technique is applied to lay the godet fiber cloth 2 between the second layer of glass fiber mat and the third layer of glass mat, and then with high strength continuous carbon fiber 3 The glass fiber mat 1 and the flow guiding layer fiber cloth 2 were sewn together by a stitching density of 1 piece/cm 2 to obtain a continuous carbon fiber layer-reinforced glass fiber felt pre-woven.

The interface coupling agent KH550 (5 kg) was dissolved in 1000 L of ethanol, and then an aluminum hydroxide flame retardant (500 kg) was dissolved in the interface coupling agent solution. After stirring evenly, the ethanol solvent is distilled off. A surface treated aluminum hydroxide flame retardant is prepared.

200 kg of the surface-treated aluminum hydroxide flame retardant, 1 kg of the ultraviolet absorber, and 20 kg of the pigment paste were added to 500 kg of the unsaturated resin, and the mixture was uniformly stirred. Then, 4 kg of a curing agent and 2 kg of a promoter are added by a proportional pump to perform secondary agitation, and the organic/inorganic hybrid resin system is uniformly obtained by mixing.

This resin system is used in the manufacture of composite lighting panels for a period of no more than one hour. The prepared resin system is conveyed to the PET stretched film (lower film) by a transfer pump to be impregnated with the glass fiber pre-woven fabric, completely penetrated into the calendering zone, and pressed to the PET film (upper film); The bending die of the zone is subjected to high temperature pultrusion; the composite composite lighting plate is pulled out at the exit through the upper and lower coupling rubber roller tractor, and is cooled by the cooling fan circulation pipe passing the upper and lower positions of the tractor; Finally, the length of the lighting board is cut according to requirements, so that a new reinforced composite anti-corrosion lighting board is obtained.

Tests have shown that the performance of the resulting non-metallic anti-corrosion lighting panels is as follows:

Tensile strength: 145MPa, flexural strength: 299MPa, Barcol hardness: 43, impact toughness: 92.8kj/m ² , thermal expansion coefficient: (30°C~100°C) 2.04*10-6, light transmittance: 83.8% , Heat distortion temperature: 〉200°C, Oxygen index: 35.4.

The main differences between the non-metallic anti-corrosion lighting products of the present invention and the performance of existing products are as follows:

1. The pre-woven member of the non-metallic anti-corrosion board of the present invention adopts a reinforcing fiber cloth as a flow guiding layer, and can uniformly permeate the fiber mat during the resin impregnation process to stabilize the obtained composite material. At the same time, the interlayer strengthening method is used to longitudinally strengthen the high-performance carbon fiber in the two-dimensional glass fiber interlayer structure, and the longitudinal strength and the impact strength are improved by 50% compared with the existing non-metallic anticorrosive board products.

2. The non-metal anti-corrosion board lighting board of the invention has the first-class flame-retardant function, and the oxygen index of the anti-corrosion board manufactured by the invention reaches 35.4, and the inorganic/organic hybridization of the high-efficiency flame retardant and the unsaturated polyester resin by combining the aluminum hydroxide is combined. , on the basis of achieving the first-grade flame retardant, still has excellent mechanical properties.

3. The non-metallic anticorrosive plate lighting plate of the invention has excellent chemical corrosion resistance, oxidation resistance, acid alkali resistance and weather resistance. When replacing steel sheets, a large amount of waste of steel resources due to corrosion of steel is avoided.

The above-mentioned embodiments are merely illustrative of the embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

Claim

A method of manufacturing a non-metallic anticorrosive lighting panel made of a pre-woven fabric with a flow guiding layer, comprising the following three steps:

2. The method of manufacturing a non-metallic anticorrosive lighting panel made of a baffled pre-woven fabric according to claim 1, wherein in the step 2), the curing agent is added by a proportional pump, Promoter.

3. The method of manufacturing a non-metallic anticorrosive lighting panel made of a baffled prepreg according to claim 2, wherein in the step 2), the surface treated aluminum hydroxide The flame retardant is prepared by dissolving the interface coupling agent KH550 in ethanol, then dissolving the aluminum hydroxide flame retardant in the interface coupling agent solution, stirring uniformly, and distilling off the ethanol solvent.

4. The method of manufacturing a non-metallic anticorrosive lighting panel made of a baffled pre-woven fabric according to claim 3, wherein in the step 3), the tractor is a top-and-down coupling glue Roller tractor.

5. Non-metallic anti-corrosion production made of a pre-woven fabric with a drainage layer according to claim 4. A method of manufacturing a light panel, characterized in that a fan circulation duct for cooling the lighting panel is further provided at an upper and lower position of the tractor.

6. The method of manufacturing a non-metallic anticorrosive lighting panel made of a baffled pre-woven fabric according to claim 5, wherein in step 3), the cutting is completed by a cutting zone. The cutting zone includes a tool, a measurement system, a dust recovery system, and a control system coupled to the tool and the measurement system.