Composite sheet consisting of thermoplastic resin and fiber and manufacturing method thereof

A thermoplastic resin, fiber composite technology, applied in the direction of coating, can solve the problem of low melting point of fiber, achieve high mechanical properties, overcome the low melting point of fiber and good durability

Inactive Publication Date: 2012-01-11
姜白燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a method for manufacturing an ultra-high molecular weight polyethylene (UHMW-PE) fiber-reinforced thermoplastic resin composite sheet. The problem of low melting point of vinyl fiber makes it better combined with thermoplastic resin, so as to produce products of ultra-high molecular weight polyethylene (UHMW-PE) fiber-reinforced thermoplastic resin composite sheet with excellent performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The manufacturing method of the fiber-reinforced resin composite plate of the present invention mainly comprises the following steps:

[0026] 1. Surface modification of ultra-high molecular weight polyethylene (UHMW-PE) fibers.

[0027] The surface modification of UHMW-PE fibers in the present invention mainly includes mechanical grinding, corona treatment and low-temperature plasma treatment, and one or more of them can be selected according to specific production conditions and product requirements. Mechanical grinding is to scrape and grind the fiber gently on the special card clothing repeatedly, so that the fibril ends on the surface of the fiber are drawn out, and the surface of the fiber can be seen to be fluffed under a microscope, like a sparse brush. Corona treatment and low-temperature plasma technology allow active groups to be grafted on the fiber surface.

[0028] After the above treatment, the surface inertia of UHMW-PE fiber is improved, and the fiber ...

Embodiment 2

[0047] The manufacturing method of the fiber-reinforced resin composite plate of the present invention can also be realized through the following steps:

[0048] 1. Surface modification of ultra-high molecular weight polyethylene (UHMW-PE) fibers.

[0049] The surface modification of UHMW-PE fibers in the present invention mainly includes mechanical grinding, corona treatment and low-temperature plasma treatment, and one or more of them can be selected according to specific production conditions and product requirements. Mechanical grinding is to scrape and grind the fiber gently on the special card clothing repeatedly, so that the fibril ends on the surface of the fiber are drawn out, and the surface of the fiber can be seen to be fluffed under a microscope, like a sparse brush. Corona treatment and low-temperature plasma technology allow active groups to be grafted on the fiber surface.

[0050] After the above treatment, the surface inertia of UHMW-PE fiber is improved, an...

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Abstract

The invention relates to a composite sheet consisting of a thermoplastic resin and a fiber and a manufacturing method thereof. The manufacturing method comprises the following steps of: performing surface modification on an ultra-high molecular weight polyethylene fiber and preparing a base material; preparing a preimpregnated base material, coating solution of the thermoplastic resin on the basematerial, and performing heat drying on the base material; preparing a prefabricated sheet, and coating thermoplastic resin powder on two sides of the base material, wherein the resin is the same as that used by the prefabricated sheet; and performing hot press molding. The composite sheet, consisting of the thermoplastic resin and the fiber, prepared by the method uses the ultra-high molecular weight polyethylene fiber as an enhanced framework fiber phase and uses the thermoplastic resin as a resin phase. The composite sheet consisting of the thermoplastic resin and the fiber and the manufacturing method thereof adopt an original process to ensure that a product is light in weight and low in forming temperature, has high mechanical properties in particular outstanding impact resistance and distortion resistance, has excellent chemical properties and is easy to process.

Description

technical field [0001] The invention relates to a composite material and a manufacturing method thereof, in particular to an ultra-high molecular weight polyethylene (UHMW-PE) fiber-reinforced thermoplastic resin composite sheet and a manufacturing method thereof. Background technique [0002] In recent years, glass fiber reinforced composite materials have been widely used in various economic fields such as building panels, electrical insulation materials, structural materials, and circuit substrates because of their good comprehensive properties. However, glass fiber reinforced composite materials also have some defects, such as low mechanical properties, difficult molding, brittle and easy to break under low temperature conditions, and high weight, which limits its application range and makes it unable to meet the needs of wider fields. [0003] As a new type of material, ultra-high molecular weight polyethylene (UHMW-PE) fiber can reach a strength of more than 30 centine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/06C08L23/06C08L53/02C08L69/00C08L29/14C08L29/04C08J7/04B29C43/58
Inventor 姜白燕
Owner 姜白燕
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