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Method for modifying protection material through shear thickening fluid impregnation

A technology of fluid impregnation and protective material, applied in textile and papermaking, fiber processing, fiber type, etc., can solve the problems of lightness and comfort of protective materials and difficult coordination of protective performance, and achieve high strength, good flexibility, and improved strength. Effect

Inactive Publication Date: 2016-11-09
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nevertheless, the lightweight comfort and protective performance of protective materials are still a set of contradictions that are difficult to coordinate

Method used

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  • Method for modifying protection material through shear thickening fluid impregnation
  • Method for modifying protection material through shear thickening fluid impregnation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for modifying a protective material by impregnating a shear thickening fluid, comprising the following steps:

[0024] (1) Mix polyethylene glycol and ethanol evenly, then add SiO in batches 2 powder, to prepare a suspension; the SiO 2 , polyethylene glycol, ethanol ratio is volume ratio 10.5:19.5:70; SiO 2 The particle size is 40nm; the average molecular weight of polyethylene glycol is 780-840;

[0025] (2) Centrifuge the suspension, wash the precipitate three times with ethanol, and dry it in vacuum at 80°C for 8 hours to obtain a powder;

[0026] (3) With the dried powder, polyethylene glycol is used as a dispersion medium to configure a suspension with a volume concentration of 8%; (4) the suspension configured in step (3) is diluted with ethanol, and the suspension configured in step (3) The volume ratio of liquid to ethanol is 1:1, and it is shaken with an ultrasonic cleaning machine to make it evenly dispersed, and then the Kevlar cloth is soaked for...

Embodiment 2

[0028] A method for modifying a protective material by impregnating a shear thickening fluid, comprising the following steps:

[0029] (1) Mix polyethylene glycol and ethanol evenly, then add SiO in batches 2 powder, to prepare a suspension; the SiO 2 , polyethylene glycol, and ethanol in a volume ratio of 5:15:60; SiO 2 The particle size is 40nm; the average molecular weight of polyethylene glycol is 780-840;

[0030] (2) Centrifuge the suspension, wash the precipitate three times with ethanol, and dry it in vacuum at 70°C for 10 hours to obtain a powder;

[0031] (3) With the dried powder, polyethylene glycol is used as a dispersion medium to configure a suspension with a volume concentration of 8%;

[0032] (4) Dilute the suspension prepared in step (3) with ethanol, the volume ratio of the suspension prepared in step (3) to ethanol is 1:1, and vibrate with an ultrasonic cleaner to make it evenly dispersed, and then place the Kevlar After soaking for 1 hour, the ultraso...

Embodiment 3

[0034] A method for modifying a protective material by impregnating a shear thickening fluid, comprising the following steps:

[0035] (1) Mix polyethylene glycol and ethanol evenly, then add SiO2 powder in batches to prepare a suspension; the proportioning ratio of SiO2, polyethylene glycol and ethanol is 15:20:70 by volume; the particle size of SiO2 The diameter is 40nm; the average molecular weight of polyethylene glycol is 780-840;

[0036] (2) Centrifuge the suspension, wash the precipitate three times with ethanol, and dry it in vacuum at 90°C for 6 hours to obtain a powder;

[0037] (3) With the dried powder, polyethylene glycol is used as a dispersion medium to configure a suspension with a volume concentration of 8%;

[0038] (4) Dilute the suspension prepared in step (3) with ethanol, the volume ratio of the suspension prepared in step (3) to ethanol is 1:1, and vibrate with an ultrasonic cleaner to make it evenly dispersed, and then place the Kevlar After soaking ...

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Abstract

The invention discloses a method for modifying a protection material through shear thickening fluid impregnation. The method comprises the steps of evenly mixing polyethylene glycol with ethyl alcohol, then adding SiO2 powder to obtain suspension liquid, centrifuging the suspension liquid, washing sediment with ethyl alcohol, conducting drying to obtain powder, making the dried powder into suspension liquid with volume concentration of 6-10% with polyethylene glycol as a dispersion medium, impregnating Kevlar cloth in the suspension liquid made in step 3 and conducting ultrasonic dispersion at the same time, and then conducting drying to obtain the modified protection material.

Description

technical field [0001] The invention belongs to the field of anti-stab materials for anti-stab clothing, and in particular relates to a method for modifying anti-stab materials by dipping in a shear thickening fluid. Background technique [0002] In recent years, with the development of high-performance fiber materials, personal protective armor has also made great progress, gradually developing from the original hard and semi-rigid products to the current soft products. This transformation not only reduced the mass of the armor, but also improved its comfort. Nevertheless, the lightweight comfort and protective performance of protective materials are still a set of contradictions that are difficult to coordinate. [0003] Under the high-speed impact of shear thickening liquid, the apparent viscosity changes dramatically, even from liquid phase to solid phase; after the impact is removed, it quickly changes from solid phase to liquid phase. This shear thickening effect is ...

Claims

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Application Information

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IPC IPC(8): D06M15/53D06M11/79D06M101/36
CPCD06M15/53D06M11/79D06M2101/36
Inventor 姚子健杨志峰谢从珍刘少华王士维王根水
Owner JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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