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Shear thickening gel and preparation method and anti-fragmentation fabric with shear thickening effect

A technology for thickening gels and fabrics, used in textiles and papermaking, fiber processing, fiber types, etc., can solve problems such as inability to prevent prevention, achieve excellent anti-ultraviolet aging performance, improve impact/puncture resistance, and meet large-scale requirements. production effect

Active Publication Date: 2017-01-11
XI AN PEAK XUANKAI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the conditions of modern warfare, even the logistics equipment in the rear is facing serious threats from the enemy's multiple means of damage, including shell fragments, stray bullets, shock waves, etc. Traditional polyester fabrics cannot effectively prevent this

Method used

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  • Shear thickening gel and preparation method and anti-fragmentation fabric with shear thickening effect
  • Shear thickening gel and preparation method and anti-fragmentation fabric with shear thickening effect

Examples

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preparation example Construction

[0033] (2) The preparation method of the above-mentioned shear thickening gel, comprising the following steps: adding boric acid and white carbon black to a, w-dihydroxypolydimethylsiloxane, under pressure of 13-14kPa, temperature is 140 Dehydration and mixing in a kneader at -180°C for 1-3 hours to prepare a base material; then dissolve the base material in a solvent to form the shear thickening gel.

[0034] The solvent is simethicone or isopropanol.

[0035] The ratio between the base material and the solvent is that 10-50 g of base material is added to every 100 mL of solvent.

[0036] (3) An anti-fragment fabric with shear thickening effect, made by the following method:

[0037] To prepare the above shear thickening gel, treat 800-1200cm per 100mL shear thickening gel 2 Proportion of polyester fabric Put the polyester fabric into the shear thickening gel and soak it for 30-60 minutes. drying the dipped polyester fabric at 50-80° C. for 1-3 hours to obtain the anti-fra...

Embodiment 1

[0042] The shear thickening gel of the present invention is composed of the following raw material components in mass percentage:

[0043] a,w-Dihydroxypolydimethylsiloxane 100g

[0044] Boric acid 3g

[0045] Silica 5g

[0046] Wherein, the white carbon black is hydrophobic white carbon black with an average particle diameter of 50 nanometers.

[0047] The preparation method of this shear thickening gel is as follows: 3g boric acid and 5g white carbon black are added in the a of 100g, w-dihydroxy polydimethylsiloxane, and then pressure is 13kPa, and temperature is 140 ℃ Dehydration mixing was carried out in a kneader for 1 hour to form a base. Weigh 100mL of simethicone, add 10g of base material into it, and mix well to form a shear thickening gel.

[0048] The anti-fragmentation fabric with shear thickening effect of the present invention is made by the following method:

[0049] Weigh 100mL shear thickening gel and put it in a beaker, put 800cm 2 The polyester fabric ...

Embodiment 2

[0051] The shear thickening gel of the present invention is composed of the following raw material components in mass percentage:

[0052] a,w-Dihydroxypolydimethylsiloxane 100g

[0053] Boric acid 4g

[0054] Silica 10g

[0055] Wherein, the white carbon black is hydrophobic white carbon black with an average particle diameter of 200 nanometers.

[0056]The preparation method of this shear thickening gel is as follows: 4g of boric acid and 10g of white carbon black are added in 100g of a, w-dihydroxypolydimethylsiloxane, and then the pressure is 13kPa, the temperature is 160 ℃ The base was prepared by dehydration mixing in a kneader for 1.5 hours. Weigh 100mL of isopropanol, add 30g of base material into it, and mix well to form a shear thickening gel.

[0057] The anti-fragmentation fabric with shear thickening effect of the present invention is made by the following method:

[0058] Weigh 100mL shear thickening gel and put it in a beaker, put 1000cm 2 The polyester fa...

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Abstract

The invention belongs to the technical field of a polymer based composite, and relates to shear thickening gel, preparation methods and splinterproof fabric with a shear thickening effect. The shear thickening gel comprises components of raw materials in percentage by mass as follows: 78%-92% of a, w-dihydroxy polydimethylsiloxane, 3%-6% of boric acid and 5%-16% of white carbon black. The preparation method of the shear thickening gel comprises steps as follows: the boric acid and the white carbon black are added to a, w-dihydroxy polydimethylsiloxane, the mixture is dehydrated and mixed in a kneading machine for 1-3 h under the pressure of 13-14 kPa at the temperature of 140-180 DEG C, and a base material is prepared; the base material is dissolved in a solvent to obtain the shear thickening gel. The preparation method of the splinterproof fabric with the shear thickening effect comprises steps as follows: polyester fabric is placed in the shear thickening gel for immersion treatment, and the polyester fabric after immersion treatment is dried for 1-3 h at the temperature of 50-80 DEG C to obtain the splinterproof fabric.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and relates to a shear thickening gel, a preparation method and an anti-fragmentation fabric with a shear thickening effect. Background technique [0002] Shear thickening fluid (STF) refers to a non-Newtonian fluid whose viscosity increases rapidly with the shear rate when the shear rate increases to a certain value. Using the shear thickening properties of fluids, researchers at the University of Delaware in the United States proposed the idea of ​​using shear thickening fluids to prepare soft body protection composites. The shear thickening fluid penetrates into the fabric, and usually exists in liquid form, which maintains the flexibility of the fabric itself; but once the fabric is impacted and compressed, the shear thickening fluid at the impacted part is under the action of shear stress. The viscosity increases rapidly and becomes a hard solid, which makes the fabric s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/643D06M101/32
Inventor 李峰彭彬超张博文王景瑜
Owner XI AN PEAK XUANKAI NEW MATERIAL CO LTD
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