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A kind of thermoplastic polymer matrix composite material and preparation method thereof

A technology of thermoplastic polymer and composite material, applied in the field of thermoplastic polymer matrix composite material and its preparation, can solve the problems of high required temperature, insufficient environmental friendliness, low practical value, etc., and achieve the effect of excellent interface performance

Active Publication Date: 2022-06-28
BAMSTONE NEW MATERIAL TECH (WUHAN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method solves the interface problem, the composite material prepared by using general-purpose epoxy resin has low heat resistance, and the glass transition temperature is 50-65°C, so the practical value is not high.
[0006] Therefore, although traditional thermosetting composite materials have the advantages of high heat resistance and high strength, they also have disadvantages such as insufficient environmental friendliness, limited production technology, and non-recyclability. Thermoplastic composite materials have high molding speed, no VOC emissions, and are environmentally friendly. Advantages such as recycling, but traditional thermoplastic composite materials also have disadvantages such as insufficient infiltration of resin to fibers and insufficient heat resistance. The mainstream hot melt impregnation method of thermoplastic composite materials has poor impregnation effect and high temperature required; solvent method will consume a lot of organic matter. Solvents are easy to cause environmental pollution; the emerging in-situ polymerization method has insufficient problems in interface, raw material selection, and heat resistance

Method used

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  • A kind of thermoplastic polymer matrix composite material and preparation method thereof
  • A kind of thermoplastic polymer matrix composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Preparation of component A

[0031] Weigh 100g of bisphenol A epoxy resin (850S, EEW=185-195, purchased from Nantong Xingchen Synthetic Materials Co., Ltd.), heat it to 115°C, add 80g of bisphenol A, and fully stir until the bisphenol A is completely dissolved, The above mixture is the A component.

[0032] The viscosity of test A component at 110°C was 150 mPa.s.

[0033] After the component A was kept at 110°C for 3 days, its viscosity at 110°C was measured to be 380 mPa.s.

[0034] 2. Preparation of component B

[0035] Weigh 100 g of bisphenol A epoxy resin (850S, EEW=185-195, purchased from Nantong Xingchen Synthetic Materials Co., Ltd.), add 4 g of methyltriphenylphosphine bromide to disperse uniformly, and the above mixture is the B component.

[0036] The viscosity of test component B at 80°C was 220 mPa.s.

[0037] The B component was kept at 80°C for 8 days, and its viscosity at 80°C was measured to be 420 mPa.s.

[0038] 3. Mix A and B components

[...

Embodiment 2

[0045] On the basis of Example 1, other conditions remain unchanged, and the catalyst is changed to benzyltrimethylamine chloride, and a similar thermoplastic composite laminate can also be prepared.

Embodiment 3

[0047] On the basis of Example 1, other conditions remain unchanged, and the catalyst is changed to triphenylphosphine, and a similar thermoplastic composite laminate can also be prepared.

[0048] It can be seen from Examples 2 and 3 that similar thermoplastic composites can be obtained by using different catalysts.

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Abstract

The invention relates to a thermoplastic polymer-based composite material and a preparation method thereof. The thermoplastic polymer-based composite material is prepared by impregnating a reinforcing material with epoxy resin, bisphenol A / F, a mixture of catalysts or oligomers and polymerizing in situ. The thermoplastic polymer-based composite material has excellent impregnation performance, excellent secondary processing performance, high heat resistance performance and mechanical performance, and excellent comprehensive performance.

Description

technical field [0001] The invention relates to a thermoplastic polymer-based composite material and a preparation method thereof, belonging to the technical field of polymer-based composite materials. Background technique [0002] Polymer matrix composites have been widely used in aerospace, shipbuilding, automobile and other fields, and can be divided into thermosetting and thermoplastic composites according to their resin matrix. In the past half century, thermosetting resin matrix composites have long been recognized by the engineering community as a new type of material, have entered the stage of industrial production, and maintained rapid growth at a relatively high rate. However, thermoset composites still have some deficiencies, such as long curing time, high VOC emissions, and low impact and damage resistance. In today's era, the world is extremely concerned about the increasingly serious environmental pollution caused by waste and harmful gases. Developed countrie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08J5/04
CPCC08J5/043C08J2363/00C08G59/688C08G59/621C08G59/245C08G59/226C08G59/686C08J5/244C08J3/20C08G59/308C08J2363/02
Inventor 王钧邹俊杰杨小利刘伟
Owner BAMSTONE NEW MATERIAL TECH (WUHAN) CO LTD