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Manufacturing method of fiber cloth reinforced thermoplastic resin composite material

A resin composite material, thermoplastic resin technology, applied in the field of material science, can solve the problems of high melt viscosity, impregnation cannot be achieved, thermoplastic resin impregnation fiber technical difficulties, etc., to achieve the effect of low equipment investment and simple process

Inactive Publication Date: 2012-07-11
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high melt viscosity of thermoplastic resin (generally greater than 100Pa.S), it brings huge technical difficulties to thermoplastic resin impregnated fibers
[0005] At present, the continuous fibers in continuous fiber-reinforced thermoplastic resin composites are mostly continuous fiber filaments / bundles, or continuous unidirectional fiber cloth, and fiber cloth-reinforced thermoplastic resin composites have not been able to be realized due to the problem of impregnation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Manufacturing method of fiber cloth reinforced thermoplastic resin composite material
  • Manufacturing method of fiber cloth reinforced thermoplastic resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Alkali-free glass cloth reinforced polypropylene composite material

[0038] Such as figure 1 As shown, the non-alkali glass cloth 2 enters the preheating oven 3 to preheat to 230°C after being unrolled. In device 5, the surface temperature of the hot roller is set at about 230°C to keep the polypropylene resin film in a molten and flowing state, so as to realize the complete impregnation of the molten polypropylene resin on the alkali-free glass cloth. The fully impregnated non-alkali glass cloth is drawn into the cooling roller pressing device 6 for cooling, and the cooling roller is cooled by circulating cooling water. Cool the polypropylene resin to below the glass transition temperature to realize the cooling and solidification of the molten resin and keep the surface of the impregnated glass cloth smooth and clean. The distance between the upper and lower rolls of the cooling roll pressing device can be adjusted to 0.4-0.7 mm to control the thickness of the fina...

Embodiment 2

[0040] Glass Mat Reinforced Polypropylene Composites

[0041] Such as figure 1 As shown, after the glass mat 2 is unrolled, it enters the preheating oven 3 to be preheated to 230° C., and the preheated glass mat is laminated together by the guide roller 4 and the polypropylene resin film 1, and then enters the hot roller pressing device 5 for heating. The surface temperature of the roller is set at about 230°C to keep the polypropylene resin film in a molten and flowing state, so as to realize the complete impregnation of the glass mat by the molten polypropylene resin. The fully impregnated glass mat is drawn into the cooling roller pressing device 6 for cooling, and the cooling roller is cooled by circulating cooling water. Cool the polypropylene resin to below the glass transition temperature to realize the cooling and solidification of the molten resin and keep the surface of the impregnated glass mat smooth and clean. The distance between the upper and lower rolls of th...

Embodiment 3

[0043] Kevlar Fiber Cloth Reinforced Polyethylene Terephthalate Composites

[0044] Such as figure 1As shown, the Kevlar fiber cloth 2 is unrolled and enters the preheating oven 3 to be preheated to 300°C, and the preheated Kevlar fiber cloth is laminated with the polyethylene terephthalate resin film 1 through the guide roller 4 together, and then enter the hot roller pressurization device 5, the surface temperature of the hot roller is set at about 300°C to keep the polyethylene terephthalate resin film in a molten flow state, so as to realize the melting of polyethylene terephthalate Complete impregnation of Kevlar fibers with glycol ester resins. The fully impregnated Kevlar fiber is drawn into the cooling roller pressing device 6 for cooling, and the cooling roller is cooled by circulating cooling water. Cool the polyethylene terephthalate resin to below the glass transition temperature to realize the cooling and solidification of the molten resin and keep the surface o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a manufacturing method of a fiber cloth reinforced thermoplastic resin composite material, comprising the following steps of: firstly, pre-treating fiber cloth; then, pre-treating a thermoplastic resin thin film; and then, tightly sticking the pre-heated fiber cloth on the thermoplastic resin thin film and overlapping; introducing into a calendering hot roller pressurizing device, melting and immersing the fiber cloth; and finally, treating the immersed fiber cloth by a cooling rolling device and then introducing into a drawing and winding device for winding and molding. According to the manufacturing method provided by the invention, the problem of immersing the fiber cloth by the thermoplastic resin is solved and various fiber cloth reinforced thermoplastic resin composite materials which are completely immersed and contain 40-80% of the fiber are prepared; and the performance of the fiber cloth reinforced thermoplastic resin composite materials is greatly improved compared with the same type of long fiber or unidirectional fiber cloth reinforced thermoplastic resin composite materials. The resin content of the fiber cloth reinforced thermoplastic resin composite material can be controlled and adjusted. According to the manufacturing method provided by the invention, the continuous production can be realized by the process, the production efficiency is greatly improved and the production cost is greatly reduced. The manufacturing method provided by the invention is low in equipment investment, simple in process, and economical and practical.

Description

technical field [0001] The invention belongs to the field of material science and relates to a method for manufacturing a thermoplastic resin composite material. Background technique [0002] Most of the existing fiber cloth-reinforced resin-based composite materials are fiber cloth-reinforced thermosetting resins such as unsaturated polyester and epoxy resin. Although this material has good strength and high temperature resistance, it has many shortcomings such as poor toughness, prepregs are not easy to store, and it is difficult to recycle and reuse. [0003] Continuous fibers, especially fiber cloth-reinforced thermoplastic resin composites overcome the shortcomings of thermosetting resin composites, and have many advantages such as high fracture toughness, easy repair after damage, long-term storage of prepregs, and excellent comprehensive properties. Therefore, it has been greatly developed in recent years, and the corresponding preparation technology has also obtaine...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B29C70/50
Inventor 赵磊
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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