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Method and device for preparing long fiber reinforced thermoplastic resin composite material

A technology of resin composite material and reinforced thermoplastic, applied in the field of preparing long fiber reinforced thermoplastic resin composite material, can solve the problems of secondary processing, generating thermal stress, unable to change the material ratio, etc., to reduce breakage, reduce excessive breakage, improve The effect of extreme length

Inactive Publication Date: 2011-11-30
SHANGHAI CEDAR COMPOSITES TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method and device for preparing long fiber reinforced thermoplastic resin composite materials, which effectively improves the secondary processing, thermal stress and inability to change materials when preparing with pellets. ratio problem

Method used

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  • Method and device for preparing long fiber reinforced thermoplastic resin composite material
  • Method and device for preparing long fiber reinforced thermoplastic resin composite material
  • Method and device for preparing long fiber reinforced thermoplastic resin composite material

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Embodiment Construction

[0030] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0031] In order to further understand the features of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. However, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the protection scope of the present invention.

[0032] see figure 1 , which is a schematic flow chart of the method for preparing long-fiber-reinforced thermoplastic resin composite materials of the present invention.

[0033] The present invention prepares the method for long fiber reinforced thermoplastic resin composite material, comprises the following steps:

[0034] Step S1, providing a matrix resin, heating the matrix resin to melt it;

[0035] I...

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Abstract

The invention discloses a method for preparing a long fiber reinforced thermoplastic resin composite material, which comprises: providing a matrix resin, heating the matrix resin to melt it; providing fiber filaments, impregnating the fiber filaments with the molten resin; The impregnated fiber filaments are cut into required lengths, and continue to be mixed with molten resin; the mixed cut fiber filaments and molten resin are injected into a mold, and the product is obtained after being solidified and molded . The invention also discloses a device for preparing long fiber reinforced thermoplastic resin composite material. The use of the invention reduces the breakage of the fiber during the granulation process and increases the limit length of the glass fiber in the product.

Description

Technical field: [0001] The present invention relates to a method and device for preparing long fiber reinforced thermoplastic resin composite material (Long Fiber Reinforced Thermoplastic, referred to as LFT), in particular to a method and device for preparing long fiber reinforced thermoplastic resin composite material by direct method. Background technique: [0002] LFT is a type of high-performance thermoplastic composite material that has developed rapidly in recent years. It is made by fully impregnating thermoplastic resin and long fibers under specific equipment and process conditions. Commonly used thermoplastic matrix resins are PP, PA6, PA66, PBT, PET, PEEK, PC, etc., and long fibers are glass fiber, aramid fiber, carbon fiber, hemp fiber, etc. [0003] Compared with traditional materials, LFT has many excellent properties, so its application and development are gradually becoming mature. And, depending on the end use of the product, many LFT forming processes ha...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L77/02C08L77/06C08L67/02C08L71/08C08L69/00C08L77/10C08L1/02C08L51/06C08K7/14C08K7/06B29C70/50
Inventor 罗剑岚孙昊周刚王明
Owner SHANGHAI CEDAR COMPOSITES TECHNOLOGY CO LTD
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