Anti-impact flexible protective composite material based on shear thickening adhesive and preparation method thereof

A flexible protection and composite material technology, applied in protective equipment, protective clothing, chemical instruments and methods, etc., can solve problems such as insufficient impact resistance, and achieve excellent vibration and impact resistance, the process is simple and easy to operate, and easy to achieve. Effect

Inactive Publication Date: 2019-08-06
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's safety awareness, flexible protective materials have gradually attracted people's attention, and various protective clothing made of fibers such as Kevlar fibers and ultra-high molecular weight polyethylene fibers based on fiber products are light in weight, It has strong flexibility and has gradually become a research hotspot in the field of protective materials; however, there are still shortcomings. Compared with composite materials and hard protective products, its strength, stiffness and impact resistance still have relatively large deficiencies, so researchers have devoted themselves to research to change For this defect, it is hoped that both the flexibility of the fiber-based protective material and the impact resistance of the material can be improved.

Method used

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  • Anti-impact flexible protective composite material based on shear thickening adhesive and preparation method thereof
  • Anti-impact flexible protective composite material based on shear thickening adhesive and preparation method thereof
  • Anti-impact flexible protective composite material based on shear thickening adhesive and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] A kind of impact-resistant flexible protection composite material based on shear thickening glue, its preparation method comprises the steps:

[0028] (1) Preparation of shear thickening glue, which consists of the following components:

[0029] 200g polydimethylsiloxane, 16g boric acid, 11g tetraacicular zinc oxide (the length of the needles is 10-510 μm, the diameter of the roots of the needles is 0.5-5 μm);

[0030] Dehydrate boric acid at 160°C for 2 hours, then add boric acid to polydimethylsiloxane, mix and stir in a kneader under the conditions of pressure 15kPa and temperature 200°C, mix and stir for about 0.5h, then add tetrapod Zinc oxide, the three were stirred together for about 0.5h to obtain a shear thickening glue.

[0031] (2) Mix 150g of shear thickening glue with 150g of isopropanol to obtain a dilution of the shear thickening glue. In order to obtain a flexible protective composite material with better performance, add 10g four-needle zinc oxide and...

Embodiment 2

[0035] A kind of impact-resistant flexible protection composite material based on shear thickening glue, its preparation method comprises the steps:

[0036] (1) Preparation of shear thickening glue, which consists of the following components:

[0037] 200g polydimethylsiloxane, 20g boric acid, 7g tetraacicular zinc oxide (the length of the needles is 10-510 μm, the diameter of the root of the needles is 0.5-5 μm);

[0038] Dehydrate boric acid at 160°C for 2 hours, then add boric acid to polydimethylsiloxane, mix and stir in a kneader under the conditions of a pressure of 15kPa and a temperature of 180°C, mix and stir for about 1 hour, then add tetrapod oxide Zinc, and the three were stirred together for about 1 hour to obtain a shear-thickening gel.

[0039] (2) 150g shear thickening glue is mixed with 300g isopropanol to obtain the dilution of shear thickening glue, place it after the shear thickening glue dissolves to obtain the dilution of shear thickening glue; Step (1...

Embodiment 3

[0043] A kind of impact-resistant flexible protection composite material based on shear thickening glue, its preparation method comprises the steps:

[0044] (1) Preparation of shear thickening glue, which consists of the following components:

[0045] 200g polydimethylsiloxane, 10g boric acid, 5g tetraacicular zinc oxide (needle length is 10-510μm, needle-shaped root diameter 0.5-5μm);

[0046] Dehydrate boric acid at 160°C for 2 hours, then add boric acid to polydimethylsiloxane, mix and stir in a kneader under the conditions of a pressure of 15kPa and a temperature of 160°C, mix and stir for about 1.5 hours, then add tetrapods Zinc oxide, and the three were stirred together for about 1.5 hours to obtain a shear-thickening glue.

[0047] (2) 150g shear thickening glue is mixed with 450g isopropanol to obtain a dilution of the shear thickening glue, and the shear thickening glue is placed after dissolving to obtain a dilution of the shear thickening glue; Step (1) The product...

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Abstract

The invention discloses an anti-impact flexible protective composite material based on a shear thickening adhesive, and a preparation method of the composite material comprises the following steps of:(1) preparing the shear thickening adhesive; (2) preparing a shear thickening adhesive diluent and a fixed shape shear thickening adhesive; (3) preparing a shear thickening adhesive composite flexible protective fabric; and (4) placing the fixed shape shear thickening adhesive obtained in the step (2) into an interlayer of two layers of the shear thickening adhesive composite flexible protectivefabric obtained in the step (3) or interlayers of multiple layers of the shear thickening adhesive composite flexible protective fabric obtained in the step (3), and sewing and fixing the periphery ofthe interlayers to obtain the flexible protective composite material. The anti-impact flexible protective composite material not only maintains good flexibility but also has excellent antistatic property and impact resistance.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to an impact-resistant flexible protective composite material based on shear thickening glue and a preparation method thereof. Background technique [0002] With the improvement of people's safety awareness, flexible protective materials have gradually attracted people's attention, and various protective clothing made of fibers such as Kevlar fibers and ultra-high molecular weight polyethylene fibers based on fiber products are light in weight, It has strong flexibility and has gradually become a research hotspot in the field of protective materials; however, there are still shortcomings. Compared with composite materials and hard protective products, its strength, stiffness and impact resistance still have relatively large deficiencies, so researchers have devoted themselves to research to change For this defect, it is hoped that both the flexibility of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/34B32B27/32B32B9/00B32B27/08B32B9/04B32B27/28B32B27/06B32B27/18B32B5/06B32B37/00C09J183/04C09J11/04A41D31/02
CPCA41D31/285B32B5/02B32B5/06B32B27/06B32B27/18B32B27/28B32B37/00B32B2262/0253B32B2262/0269B32B2262/106B32B2307/21B32B2307/536B32B2307/558B32B2307/56B32B2437/00B32B2571/02C09J11/04C09J183/04C08K3/38C08K7/08
Inventor 俞科静付倩倩江洋金芳羽钱坤张典堂刘庆生徐阳
Owner JIANGNAN UNIV
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