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Polyester reinforced composite material and preparation method thereof

A composite material and reinforcement technology, applied in the direction of adhesive types, adhesive additives, polymer adhesive additives, etc., can solve the problem of low photodegradation, low peel strength, and heat resistance of pure polyester adhesives. To improve the heat resistance and anti-aging performance, improve the adhesion energy and peel strength, and achieve the effect of excellent durability

Inactive Publication Date: 2018-02-09
ANHUI XINCHEN OPTICAL NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the reinforcement board mainly includes stainless steel reinforcement board, aluminum foil reinforcement board, polyester reinforcement board, polyimide reinforcement board, glass fiber reinforcement board, PTFE reinforcement board, polycarbonate reinforcement board , the reinforcement materials used in flexible circuit boards are mainly polyester reinforcement boards and polyimide reinforcement boards. Polyester resins are widely used because of their high strength, good heat resistance, and low photodegradation. In terms of electronics, polyester reinforced composite materials are made of polyester resin as a base material, coated with an adhesive layer and laminated. Glycol esters have good heat resistance and low-cost reinforcing boards, but the polyester reinforced composite materials have different problems due to the different synthesis methods of polyester resins, and the coated pure polyester Adhesives have poor heat resistance and low peel strength, which lead to surface defects of later reinforced composite materials, such as poor aging resistance and other characteristics

Method used

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  • Polyester reinforced composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A polyester reinforced composite material comprises the following components by weight: 18% of core-shell composite polyester fiber film, 20% of modified polyester resin adhesive, and 62% of release paper.

[0023] A kind of preparation method of polyester reinforced composite material, concrete steps are as follows:

[0024] 1) Preparation of modified polyester resin adhesive: Weigh saturated polyester resin, epoxy resin and isocyanate in a mass ratio of 10:2.5:1, mix saturated polyester resin, epoxy resin, isocyanate and acetone solvent, Perform high-speed blending and modification at a temperature of 245°C for 40 minutes, discharge the material, and cool to room temperature to obtain a modified polyester resin glue; the amount of acetone added is 1.5 times the amount of saturated polyester resin

[0025] 2) A core-shell composite polyester fiber membrane with a thickness of 65 μm and a mass ratio of 18% made of anisotropically melted aromatic polyester as the core an...

Embodiment 2

[0027] The preparation method of the polyester reinforced composite material in this example is the same as that in Example 1, the difference is that a polyester reinforced composite material includes the following components by weight ratio: 15% core-shell type composite polyester fiber film, modified 15% polyester resin adhesive, 70% release paper, wherein the mass ratio of saturated polyester resin, epoxy resin and isocyanate is 10:2:0.5.

Embodiment 3

[0029] The preparation method of the polyester reinforced composite material in this example is the same as that in Example 2, the difference is that a polyester reinforced composite material includes the following components by weight ratio: 20% core-shell composite polyester fiber film, modified 25% polyester resin adhesive, 55% release paper, wherein the mass ratio of saturated polyester resin, epoxy resin and isocyanate is 10:2:0.5.

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Abstract

The invention discloses a polyester reinforced composite material and a preparation method thereof, which belongs to the technical field of reinforced material processing. The polyester reinforced composite material is prepared from the following components in parts by weight: 15 to 20 percent of core-shell type composite polyester fiber membrane, 15 to 25 percent of modified polyester resin adhesive and 50 to 70 percent of release paper, wherein the modified polyester resin adhesive is prepared by adopting isocyanate as a curing agent, epoxy resin as a modifier, and saturated polyester resinas a matrix and adopting a blending modification method. The polyester reinforced composite material prepared through the invention has excellent solvent resistance, peel strength and heat resistance,and can be widely applied to a flexible printed circuit board.

Description

technical field [0001] The invention belongs to the technical field of flexible circuit board processing, specifically relates to the field of reinforced composite materials, in particular to a polyester reinforced composite material and a preparation method thereof. Background technique [0002] Flexible circuit board is a kind of highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material. Referred to as soft board or FPC, it has the characteristics of high wiring density, light weight, and thin thickness. In order to make the flexible circuit board have sufficient support strength when soldering or plugging in and out, the flexible circuit board often needs to be bonded and reinforced in some places as a support body to improve the strength of the plug-in part and facilitate the overall composition of the product. [0003] At present, the reinforcement board mainly includes stainless steel reinforcement board, alu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/21C09J7/30C09J167/00C09J163/00C09J11/06C09J11/08
CPCC09J167/00C08L2201/08C08L2203/20C09J11/06C09J11/08C09J2467/006C08L63/00C08K5/29
Inventor 周小马周有文胡必刚郑诗友
Owner ANHUI XINCHEN OPTICAL NEW MATERIALS