Long and short fiber composite strengthening thermoplastic plastic particle material and production method thereof

A fiber composite reinforced thermoplastic technology, which is applied in the field of glass fiber composite materials, can solve the problems of large drop in strength at the weld line and poor solid injection molding process.

Inactive Publication Date: 2013-11-06
JURONG BASTEP COMPOSITE MATERIALS
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  • Abstract
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Problems solved by technology

However, because the reinforcing fibers are distributed parallel to the axis of the pellets in bundles, the reinforcing fibers are not completely infiltrated by Rongrong plastic, the solid injection molding process is poor, and the strength of the welded line of the product has a large drop

Method used

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  • Long and short fiber composite strengthening thermoplastic plastic particle material and production method thereof
  • Long and short fiber composite strengthening thermoplastic plastic particle material and production method thereof

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0021] The long and short fiber composite reinforced thermoplastic pellets of the present invention are composed of a thermoplastic matrix, reinforced long fibers and reinforced short fibers, wherein the reinforced long fibers are as long as the pellets and distributed parallel to the axis of the pellets; the reinforced short fibers are Amorphous random distribution in the pellets. Among them, the thermoplastic matrix can adopt thermoplastics such as PP, ABS, PE, PA, and...

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Abstract

The invention discloses a long and short fiber composite strengthening thermoplastic plastic particle material and a production method thereof. The particle materials are composed of thermoplastic plastic substrate, strengthening long fibers and strengthening short fibers, wherein the strengthening long fibers have the same lengths as those of the particle materials, are parallelly distributed in the direction of particle material axis, and the short strengthening fibers are randomly and astatically distributed in the particle materials. Two strengthening fibers exist in the particle materials at the same time, namely the strengthening long fibers with the same lengths as those of the particle materials and the strengthening short fibers, which are randomly distributed in the particle materials, with different lengths. Therefore the particle materials integrate the strong mechanical property of the long fiber particle material LFT and the good processing technology property of the short fiber particle material SFT together. Furthermore, the ratio of the long fiber to short fiber in the particle materials can be adjusted through the technology to produce products with different mechanical properties and processing technology properties.

Description

technical field [0001] The present invention mainly relates to the field of glass fiber composite materials. Background technique [0002] There are currently two types of FRTP material pellets, one is short fiber reinforced thermoplastic pellets (SFT) and the other is long fiber reinforced thermoplastic pellets (LFT). In SFT, the reinforcing fibers are of different lengths, generally less than 1mm, and are randomly distributed in the pellets. However, due to the relatively good processing technology of this kind of pellets, the quality of product processing is good, the mechanical properties of the product are uniform, and the relative strength of the weld line is relatively high, it is widely used in injection molding. However, due to the short length of the reinforcing fibers in the pellets, the length is further shortened after injection molding, and the length of some reinforcing fibers in the pellets is already less than the critical length, which cannot play a reinfo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/08B29C70/52B29B9/06
Inventor 陆志宏曾天卷
Owner JURONG BASTEP COMPOSITE MATERIALS
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