Manufacturing method of non-woven glass fiber cloth

Abstract

A method for manufacturing non-woven glass fiber cloth, which includes manufacturing steps such as fiber expansion, resin impregnation, fiber smoothing processing, and finished product coiling, and can produce a non-woven glass fiber cloth for application In the production of various fiber composite products, the phenomenon of thread marks on the surface of the fiber composite products can be effectively improved, so that the surface of the surface layer can clearly present a reflection image of an object.

Description

technical field [0001] The invention relates to a method for making a fiber composite material. Background technique [0002] Because Fiber Reinforced Plastic (FRP) has the characteristics of light weight, high mechanical strength and corrosion resistance, it is widely used in various industrial products. Please refer to figure 1 As shown, the fiber composite product is mainly based on polymer resin 1, with woven glass fiber cloth 2 as reinforcement, and uses a composite process similar to reinforced concrete to combine the two to form a structural layer 3, and The surface of the structural layer 3 is coated with paint to form a surface layer 4, which can achieve the effect of beautifying the appearance of the product. However, because the weaving surface of the glass fiber woven cloth 2 is up and down due to the interweaving of fiber bundles, and It is full of weaving pores 5, and the composite resin 1 will shrink in volume during the curing process, which will cause the s...

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Problems solved by technology

[0002] Because Fiber Reinforced Plastic (FRP) has the characteristics of light weight, high mechanical strength and corrosion resistance, it is widely used in various industrial products. Please refer to figure 1 As shown, the fiber composite product is mainly based on polymer resin 1, with woven glass fiber cloth 2 as reinforcement, and uses a composite process similar to reinforced concrete to combine the two to form a structural layer 3, and The surface of the structural layer 3 is coated with paint to form a surface layer 4, which can achieve the effect of beautifying the appearance of the product. However, because the weaving surface of the glass fiber woven cloth 2 is up and down due to the interweaving of fiber bundles, and It is full of weaving pores 5, and the composite resin 1 will shrink in volume during the curing process, which will cause the surface of the structural layer 3 to fluctuate, making the thickness of the surface layer 4 vary, affecting light reflection and causing thread marks. (print-throughphenomenon, PTP) phenomenon, such as figure 2 As shown, it is a schematic diagram of reflection imaging of a daylight lamp group. The phenomenon of thread marks will cause blurred, twisted and wrinkled reflection images on the surface of the product, which will affect the appearance of the product. Therefore, the current domestic and foreign fiber composite materials manufacturing The factory often uses secondary processing technologies such as cold baking paint method and barrier layer laying method to overcome and improve the thread printing phenomenon. The surface layer 4 is flat, and the barrier layer laying method is to add a barrier layer made of non-woven fabric or foam between the structure layer 3 and the surface layer 4 of the product to reduce the fluctuation of the structure layer 3 surface, but , the above method will not only prolong the process time, but also increase the cost of manpower and materials, especially during the production process of the barrier layer laying method, the non-woven fabric or foam will absorb a large amount of resin, and the weight of the product will increase sharply, indirectly causing The loss of economic benefits, so how to develop a method that can improve the phenomenon of screw marks without increasing manpower, materials and product weight is really necessary

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