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Preparation method of anti-ultraviolet flexible stab-resistant material

An anti-ultraviolet and flexible technology, applied in the direction of protective equipment, offensive equipment, personnel protection equipment, etc., can solve the problems of lack of anti-ultraviolet, waste, complexity, etc., and achieve improved mechanical properties, simple and easy operation, and mild process conditions Effect

Active Publication Date: 2019-02-22
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: the method disclosed by Zhang Tao et al. in the document "Preparation and Characterization of Anti-ultraviolet Aging Poly(p-Phenylenebenzobisoxazole) (PBO) Fiber" is complicated to operate, and many additives are distributed inside the fiber, which cannot achieve anti-aging effect. The role of ultraviolet rays, causing unnecessary waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The invention provides a kind of preparation method (abbreviation method) of anti-ultraviolet flexible anti-stab material, it is characterized in that the method comprises the following steps:

[0020] Step 1. Preparation of anti-ultraviolet shear thickening liquid: at room temperature, in an ultrasonic oscillator, the dispersed phase particles are added to the into the dispersion medium; add all the particles of the dispersed phase into the dispersion medium, and then disperse with a high-speed homogenizer with a rotation speed of 8000-20000rpm / min (preferably 8000-15000rpm / min) for 10-30min until the dispersion is uniform; then put it into a vacuum In the oven, vacuumize and defoam at a temperature of 40-60°C for 10-20 minutes to obtain a uniformly dispersed and stable anti-ultraviolet shear thickening liquid;

[0021] The dispersed phase particles account for 10%-70% of the total mass of the dispersed phase particles and the dispersed medium;

[0022] The dispersed ...

Embodiment 1

[0032](1) Preparation of anti-ultraviolet shear thickening liquid: in an ultrasonic oscillator (ultrasonic frequency is 60KHz), while stirring at a speed of 500rpm / min, slowly, a small amount, and multiple times of adding a particle size of 50nm titanium dioxide particles accounting for 10% of the total mass of the dispersed phase particles and the dispersion medium were added to the polyethylene glycol-200. After all the titanium dioxide particles are added, continue to slowly add silicon dioxide particles with a particle size of 12nm accounting for 20% of the total mass of the dispersed phase particles and the dispersion medium at a speed of 1000rpm / min in small amounts and multiple times. As the number of nanoparticles in the system increases, the viscosity increases, so it is necessary to continuously increase the stirring speed to ensure the uniformity of dispersion. After all the particles are dispersed, use a high-speed homogenizer to disperse the system for another 15 ...

Embodiment 2

[0037] (1) Preparation of anti-ultraviolet shear thickening liquid: in an ultrasonic oscillator (ultrasonic frequency is 50KHz), while stirring at a speed of 600rpm / min, slowly, a small amount, and several times of adding a particle size of 60nm titanium dioxide particles accounting for 15% of the total mass of the dispersed phase particles and the dispersion medium were added to glycerol. After all the titanium dioxide particles are added, continue to slowly add silicon dioxide particles with a particle size of 500nm several times at a speed of 1200rpm, accounting for 45% of the total mass of the dispersed phase particles and the dispersion medium. As the number of nanoparticles in the system increases, the viscosity increases, so it is necessary to continuously increase the stirring speed to ensure the uniformity of dispersion. After all the particles are dispersed, the system is re-dispersed for 15 minutes with a high-speed homogenizer at a speed of 10,000 rpm. Then place ...

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Abstract

The invention discloses a preparation method of an anti-ultraviolet flexible stab-resistant material. The preparation method comprises the following steps: 1, adding dispersed-phase particles into a dispersion medium while stirring; adding all to-be-dispersed-phase particles into the dispersion medium, and then, carrying out uniform dispersion by using a high-speed homogenizer; and vacuumizing defoaming to obtain an anti-ultraviolet shear thickening liquid; and 2, diluting the anti-ultraviolet shear thickening liquid in the step 1 by using alcohol, and carrying out uniform stirring to obtain adiluent; finishing the diluent on a high-performance fiber fabric by using a coating or padding method; and then, placing the finished fabric in a normal-temperature shading environment, then, placing the fabric in a drying oven, selecting a plurality of temperature points within the temperature range of 20-80 DEG C by using an arithmetic increment way to dry the fabric, and controlling the drying time at each temperature point at 30 min to 2h to obtain the stab-resistant material. The method is simple and feasible in operation and mild in process condition; and the obtained stab-resistant material has the advantages of softness, lightweight and thinness, stab-resistant effect, light resistance, heat resistance and durability.

Description

technical field [0001] The invention relates to a stab-proof material, in particular to a preparation method of an ultraviolet-resistant flexible stab-proof material. Background technique [0002] In recent years, conflicts in various regions have continued, and many countries have strictly controlled the use of guns, making daggers, bayonets and other tools a major threat to the lives and health of relevant personnel. In other high-risk industries such as: construction, machining, etc., the staff may also be injured by sharp objects such as knives and fragments. Therefore, the development of multi-functional stab-resistant materials has attracted great attention from scholars at home and abroad. [0003] At present, the existing anti-stab materials at home and abroad can be roughly divided into three types: hard, semi-soft, and soft. Most of the hard anti-stab materials are metals, hard ceramic materials or polymer composite boards, etc. These materials are heavy in qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M17/10D06M11/46D06M13/165D06M13/148D06M11/44D06M11/79F41H1/02D06M101/36
CPCD06M11/44D06M11/46D06M11/79D06M13/148D06M13/165D06M17/10D06M2101/36F41H1/02
Inventor 王瑞李聃阳刘星代二庆张淑洁
Owner TIANJIN POLYTECHNIC UNIV
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