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Preparation method of adhesive for aramid fiber no-woven cloth

A weft-free fabric and adhesive technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problems of enhanced yarn stretching effect and adverse effects of material ballistic performance

Inactive Publication Date: 2017-05-10
上海飞顿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reflected wave formed at the fixed end and the original incident wave will superimpose in the same direction, which greatly enhances the stretching effect on the yarn, and breaks after exceeding its breaking strength, thus adversely affecting the ballistic performance of the material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Pre-polymerization: Add 145 parts of polyadipate-1,4-butylene glycol ester diol-A component and 120 parts of polyadipate-1,4-butylene glycol ester diol-B component into the flask, evenly Stir, add 61 parts of toluene diisocyanate, 21 parts of hexamethylene diisocyanate, add 7 parts of phenyltris(trimethylsiloxane) silane, heat to 85 degrees, and keep for 3 hours. Cool down to 70°C, add 11 parts of 2,2-dimethylolpropionic acid and 71 parts of N-methylpyrrolidone and continue stirring for 4 hours.

[0011] Neutralization stage: cool down to 60 degrees, add 13 parts of triethylamine, and stir for 0.5h.

[0012] Emulsification stage: increase the stirring speed to 1.5 times before, and add 500 parts of deionized water.

[0013] Further chain extension stage: add 10 parts of hydrazine hydrate and stir for 1 hour.

Embodiment 2

[0015] Pre-polymerization: Add 150 parts of polyadipate-1,4-butylene glycol ester diol-A component and 125 parts of polyadipate-1,4-butylene glycol ester diol-B component into the flask, evenly Stir, add 63 parts of toluene diisocyanate, 23 parts of hexamethylene diisocyanate, add 8 parts of phenyl tris(trimethylsiloxane) silane, heat to 85 degrees, and keep for 3 hours. Cool down to 70°C, add 13 parts of 2,2-dimethylolpropionic acid and 73 parts of N-methylpyrrolidone and continue stirring for 4 hours.

[0016] Neutralization stage: cool down to 60 degrees, add 15 parts of triethylamine, and stir for 0.5h.

[0017] Emulsification stage: increase the stirring speed to 1.5 times before, and add 550 parts of deionized water.

[0018] Re-extension stage: add 12 parts of hydrazine hydrate and stir for 1 hour.

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PUM

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Abstract

The invention provides a synthesis method of an adhesive for aramid fiber no-woven cloth. The method adopts the following technical scheme that two polyalcohols, toluene diisocynate and hexamethylene diisocyanate are used as monomers; a polysilane coupling agent is added; polymers are prepared through prepolymerization, neutralization, emulsification and chain expansion. The thermal stability and the mechanical property of a polyurethane glue layer can be obviously improved through silicon oxygen bonds in a polyurethane additive structure prepared by the method; the water-resistant performance, the weather-resistant performance, the acid-and-alkali-resistant performance and the high-low-temperature-resistant use performance are improved.

Description

technical field [0001] The invention relates to a method for preparing an adhesive, in particular to a method for preparing an adhesive used for aramid-aramid non-woven fabrics. Background technique [0002] The bulletproof effect of the material is mainly manifested in two aspects: on the one hand, it bounces off the fragments formed after the projectile is broken; on the other hand, it dissipates the kinetic energy of the bullet through the bulletproof material. The woven fabric material has many interweaving points. After being hit by bullets, the kinetic energy of the bullet can be transmitted through the interaction of the yarns on the interweaving points, so that the impact force of the bullet or shrapnel can be absorbed in a larger area. But at the same time, the interweaving point acts as a fixed end invisibly. The reflected wave formed at the fixed end and the original incident wave will superimpose in the same direction, which greatly enhances the stretching effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J11/06C08G18/66C08G18/42C08G18/34
CPCC09J175/06C08G18/0823C08G18/348C08G18/4202C08G18/4238C08G18/6659C08K5/5419C09J11/06
Inventor 杨洛阳杨永
Owner 上海飞顿新材料科技有限公司