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Fiber reinforced resin sheet and laminated compression moulding forming method thereof

A technology of fiber-reinforced resin and compression molding, which is applied to other household appliances, household appliances, flat products, etc., can solve problems such as cracking, product aesthetics decline, poor impact resistance, etc., and achieve simple process flow, no bubble residue, good The effect of abrasion resistance

Inactive Publication Date: 2013-05-01
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

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0018] The specific steps of the laminated compression molding method of the fiber-reinforced resin sheet in this embodiment are:

[0019] A. The first resin layer, the first fiber fabric layer, the second resin layer, the second fiber fabric layer and the third resin layer are sequentially stacked and distributed, and placed between two heat-pressing plates. The first, second and third resin layers are made of thermoplastic resin sheets. The first and second fiber fabric layers are plain weave fabrics formed by interlacing warp and weft of basalt fibers.

[0020] B. The two hot-pressing flat plates are put together and hot-pressed at a temperature of 250° C., so that the thermoplastic resin sheet is melted and coated on the fiber fabric.

[0021] C. Cool down after hot pressing.

[0022] D. A wear-resistant layer is electroplated on the outer surface of the sheet.

[0023] The surface of the fiber-reinforced resin sheet produced by the lamination molding method of this...

Embodiment 2）

[0025] The specific steps of the laminated compression molding method of the fiber-reinforced resin sheet in this embodiment are:

[0026] A. The first resin layer, the first fiber fabric layer, the second resin layer, the second fiber fabric layer and the third resin layer are sequentially stacked and distributed, and placed between two heat-pressing plates. The first, second and third resin layers are made of thermoplastic resin films, and patterns are printed and dyed on the outside of the first and third resin layers. The first and second fiber fabric layers are twill weave fabrics formed by interlacing warp and weft of glass fibers.

[0027] B. The two hot-pressing flat plates are put together for hot-pressing at a temperature of 200° C., so that the thermoplastic resin film is melted and coated on the fiber fabric.

[0028] C. Cool down after hot pressing.

[0029] The fiber-reinforced resin sheet produced by the laminated compression molding method of this embodime...

Embodiment 3）

[0031] The specific steps of the laminated compression molding method of the fiber-reinforced resin sheet in this embodiment are:

[0032] A. The first resin layer, the first fiber fabric layer, the second resin layer, the second fiber fabric layer and the third resin layer are sequentially stacked and distributed, and placed between two heat-pressing plates. The first, second and third resin layers are made of thermoplastic resin powder, and an anti-wear modifier is added to the thermoplastic resin powder. The first and second fiber fabric layers are satin weave fabrics formed by interlacing warp and weft of carbon fibers.

[0033] B. The two hot-pressed flat plates are put together for hot-pressing at a temperature of 250° C., so that the thermoplastic resin powder is melted and coated on the fiber fabric.

[0034] C. Cool down after hot pressing.

[0035] The surface of the fiber-reinforced resin sheet produced by the laminate compression molding method of this embodim...

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PUM

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Abstract

The invention relates to a laminated compression moulding forming method of a fiber reinforced resin sheet. The method comprises the following steps: A.sequentially stacking a first resin layer, a first fabric layer, a second resin layer, a second fiber fabric layer and a third resin layer, and placing the layers between two hot pressing plates, wherein the first, second and third resin layer is a thermoplastic resin material layer, and the first and second fabric layer is a texture rendered fiber reinforced fabric layer; B. closing the two hot pressing plates for hot pressing, so as to melt and coat the thermoplastic resin material layers on the fabric; and C. cooling after hot pressing. The invention also relates to the fiber reinforced resin sheet prepared by the laminated compression moulding forming method. The fiber reinforced resin sheet provided by the invention has advantages of high impact strength, good toughness, wear resistance, inner lines and simple production process.

Description

technical field [0001] The invention relates to a composite sheet and its production method, in particular to a fiber-reinforced composite sheet and its production 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 film...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29L7/00
Inventor 吕珏刘春岐谭飞丁雷宋坤
Owner JIANGSU TIEKE NEW MATERIAL CO LTD