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Fiber-reinforced resin sheet material and continuous forming method and device thereof

A fiber reinforced resin and molding method technology, applied in the field of composite sheet and its production, can solve the problems of poor impact resistance, reduced product aesthetics, long production cycle, etc. low effect

Inactive Publication Date: 2013-05-22
JIANGSU TIEKE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Composite sheet products made of thermosetting resins have high rigidity, but poor impact resistance. After the surface of the resin is impacted by sharp foreign objects, the resin is easily broken, which will cause permanent damage and reduce the aesthetics of the product.
In addition, the production cycle of composite sheet products made of thermosetting resins is very long. In the production process, the long curing time and secondary curing time directly limit the output of this product
[0003] At present, when some enterprises produce composite sheets, they use film-coated plastic sealing technology to realize the bonding and molding of fiber substrates and resin films by coating methods. Since the bonding strength between layers depends on the resin film, adhesive and fiber The base material, the adhesive strength is difficult to guarantee, and there will be tiny gas between the layers. After a long time of use, there will be interlayer delamination, cracking, etc., and the service life is not long

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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  • Fiber-reinforced resin sheet material and continuous forming method and device thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0028] See figure 1 , the fiber-reinforced resin sheet molding device for realizing the continuous molding method of the present embodiment includes a thermoplastic resin film unwinding mechanism 11 and a fiber-reinforced fabric unwinding mechanism 12 arranged at intervals for separating the thermoplastic resin film and the fiber-reinforced fabric Set up a guide roller conveying mechanism 2 stacked together for conveying, a hot pressing mechanism 3 and a cooling mechanism 4 set on the conveying path for composite molding of thermoplastic resin films and fiber reinforced fabrics, and for conveying composite molded sheets The traction drive mechanism 5.

[0029] The hot pressing mechanism 3 and the cooling mechanism 4 are arranged in the heat preservation box 6 . The hot pressing mechanism 3 includes a set of pressure rollers arranged symmetrically up and down and with adjustable spacing. The pressure rollers of the pressure roller group are provided with heating components. ...

Embodiment 2）

[0040] The specific steps of the continuous molding method of the fiber-reinforced resin sheet of the present embodiment are:

[0041] A. The first resin film, the first fiber fabric, the middle first resin film, the middle fabric, the middle second resin film, the second fiber fabric and the second resin film respectively arranged on each unwinding mechanism pass through the guide roller conveying mechanism 2 Cascade distribution in sequence. The first resin film, the second resin film, the intermediate first resin film, and the intermediate second resin film are thermoplastic resin films. The first fiber fabric and the second fiber fabric are twill weave fabrics formed by interlacing warp and weft of glass fibers. The middle fabric is an ordinary fabric made of polyester fibers interlaced in warp and weft.

[0042] B. The laminated raw materials are sent to the hot-pressing mechanism 3 through the guide roller conveying mechanism 2 and the traction conveying mechanism 5 fo...

Embodiment 3）

[0047] The specific steps of the continuous molding method of the fiber-reinforced resin sheet of the present embodiment are:

[0048] A. The first resin film, the first fiber fabric, the middle first resin film, the middle fiber fabric, the middle second resin film, the second fiber fabric and the second resin film respectively arranged on each unwinding mechanism pass through the guide roller conveying mechanism 2 are distributed sequentially. The first resin film, the second resin film, the intermediate first resin film, and the intermediate second resin film are thermoplastic resin films. The first fiber fabric, the second fiber fabric and the intermediate fiber fabric are satin-weave mixed fabrics formed by interlacing aramid fibers arranged in the warp direction and acrylic fibers arranged in the weft direction. The first fiber fabric and the second fiber fabric are embroidered (or patterned).

[0049] B. The laminated raw materials are sent to the hot-pressing mecha...

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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PUM

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Abstract

The invention relates to a continuous forming method and device of a fiber-reinforced resin sheet material. The method comprises the following steps of: A, sequentially stacking a first resin film, a first fabric, a middle resin film, a second fabric and a second resin film arranged an unreeling mechanism through a guide roller conveying mechanism, wherein the first and second resin films are thermoplastic resin films, and first and second fabrics are fiber-reinforced fabrics which can present grains; B, sending the stacked raw material to a hot pressing region for hot-pressing treatment through the guide roller conveying mechanism and a traction delivery mechanism, so that the thermoplastic resin films melt and coat the fabrics; and C, carrying out cooling treatment after hot pressing, wherein the middle resin film can be replaced by a middle first resin film, a middle fabric and a middle second resin film, which are sequentially stacked. The made-up fiber-reinforced resin sheet material has the advantages of high shock strength, good tenacity and good wear resistance, and the fibrous reinforcement resin sheet material has inner grains. The forming method provided by the invention has the advantages that the process is continuous and concise, and the efficient is high.

Description

technical field [0001] The invention relates to a composite sheet and its production method, as well as equipment for realizing the method. Background technique [0002] The composite sheet is mainly made of thermosetting resin and fibers with various textures and colors. Composite sheet products made of thermosetting resins have high rigidity, but poor impact resistance. After the surface of the resin is impacted by sharp foreign objects, the resin is easily broken, which will cause permanent damage and reduce the aesthetics of the product. In addition, the production cycle of composite sheet products made of thermosetting resins is very long. In the production process, the long curing time and secondary curing time directly limit the output of this product. [0003] At present, when some enterprises produce composite sheets, they use film-coated plastic sealing technology to realize the bonding and molding of fiber substrates and resin films by coating methods. Since the ...

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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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54B29L7/00
Inventor 刘春岐丁雷谭飞宋坤
Owner JIANGSU TIEKE NEW MATERIAL CO LTD