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High-toughness resin-based aramid fiber composite material and production method thereof

A composite material and production method technology, applied in the textile field, can solve the problems of uneven stab-proof performance of resin-based aramid fiber composite materials, being susceptible to knife cutting, penetration of knife stabs, weak stab-proof performance of raised parts, and the like, Achieve the effect of uniform distribution of stab resistance, high stab resistance and uniform stab resistance

Active Publication Date: 2014-04-30
SHANGHAI LIANBO SECURITY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when liquid resin is used to pre-preg the aramid fabric, the liquid resin will be immersed in the structural gaps of the aramid fabric to form a rough structure with uneven surfaces. Penetration of the thorn, that is, the raised part acts as a weak part to prevent the penetration of the knife tip, and its anti-stab performance is poor
It can be seen that the anti-stab performance of the resin-based aramid composite material made by the prepreg process is not uniform, and the anti-stab performance of the raised part is weak

Method used

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  • High-toughness resin-based aramid fiber composite material and production method thereof
  • High-toughness resin-based aramid fiber composite material and production method thereof
  • High-toughness resin-based aramid fiber composite material and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of production method of high-toughness resin-based aramid fiber composite material, such as figure 1 shown, including the following steps:

[0023] Step 101: Mix 50-80 parts of epoxy resin with 10-20 parts of modifier by weight.

[0024] Step 102: Add 15-35 parts of aliphatic amine curing agent to the mixture of epoxy resin and modifier, and then stir to obtain a composite resin.

[0025] Step 103: drying the composite resin at 15-40° C. for 1.5-4.5 hours to obtain a semi-cured composite resin film.

[0026] Step 104: Coating the semi-cured composite resin film on the surface of the aramid fiber fabric, forming by pressing rollers to obtain a high-toughness resin-based aramid fiber composite material.

[0027] Wherein, the modifying agent is one or more of liquid polysulfide rubber, liquid silicone rubber, and polyethylene glycol ether.

[0028] The production method of the above high-toughness resin-based aramid fiber composite material is to prepare the comp...

Embodiment 2

[0041] This embodiment provides a high-toughness resin-based aramid fiber composite material, which is prepared by using Embodiment 1 or its preferred method. It can be seen that the high-toughness resin-based aramid fiber composite material of this embodiment can also achieve the above-mentioned technical effects.

[0042] Wherein, each component in the composite resin used can adopt any part within its part number range, such as the formula shown in Table 1 (this table only lists some formulas, and the scope of protection of the present invention is not limited to the following formulas).

[0043] The formula of table 1 composite resin

[0044]

[0045]

[0046]

Embodiment 3

[0048] Mix the epoxy resin with the modifier, stir evenly for 25 minutes to fully mix the two components, continue to add aliphatic amine curing agent to catalyze, stir fully for 25 minutes, and transfer the modified composite resin to the release paper (PET, PE, PC or paper release paper) to ensure that the resin adheres evenly and smoothly to the release paper, and put it in a drying oven to dry in a vacuum at room temperature to form a film for storage, then make a film with a flexible resin with good thickness and uniform thickness, and transfer it to a flat surface for the second time On aramid cloth. The rolling speed and pressure of the pressing roller are properly regulated, the speed is guaranteed to be 8m / s, the pressure is kept at 5MPa, and the constant speed and constant pressure are uniformly pressed, so that the modified epoxy resin film and the aramid fiber cloth can be tightly compounded without bubbles, and it is made of Aramid stab-resistant material with exc...

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Abstract

The invention relates to the technical field of textiles and in particular relates to a high-toughness resin-based aramid fiber composite material and a production method thereof. The production method of the high-toughness resin-based aramid fiber composite material comprises the following steps: mixing 50-80 parts by weight of epoxy resin and 10-20 parts by weight of a modifier, wherein the modifier is one or more of liquid polysulfide rubber, liquid silicone rubber and polyglycol ether; adding 15-35 parts by weight of a fatty amine curing agent into the epoxy and modifier mixture, and stirring again to obtain composite resin; drying the composite resin at 15-40 DEG C for 1.5-4.5 hours to obtain a half-cured composite resin film; coating the surface of an aramid fiber fabric with the half-cured composite resin film, and molding through a pressing roller to obtain the high-toughness resin-based aramid fiber composite material. Compared with a conventional presoaking technology in the prior art, the production method disclosed by the invention has the advantages that the obtained high-toughness resin-based aramid fiber composite material is high in puncture prevention performance, and the puncture prevention performance is uniformly distributed.

Description

technical field [0001] The invention relates to the field of textiles, in particular to a high-toughness resin-based aramid fiber composite material and a production method thereof. Background technique [0002] With the development and progress of society, people are increasingly eager for social peace and personal safety. Since the "9.11" incident in the United States, people's awareness of anti-terrorism has become stronger, so the research and development of personal protective materials have developed rapidly. At present, there are many kinds of materials that can be used for personal protection, such as resin-based glass fiber composite materials, resin-based carbon fiber composite materials, resin-based aramid fiber composite materials, etc. The protective function of the above materials is mainly reflected in two aspects of bulletproof and stabproof. Among them, resin-based aramid composite materials have the advantages of light weight, high strength, excellent ela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/38B32B27/34C08L63/00C08L81/04C08L83/04C08L71/08C08G59/50B29C43/58
Inventor 蔡俊东蔡明德瞿新昌陈跃国朱建民周晓青黄星
Owner SHANGHAI LIANBO SECURITY EQUIP
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