Shear thickening liquid and preparation method thereof

A liquid and solution technology, applied in the field of organic polymer composite materials, can solve the problems of long thickening time and complicated process, and achieve the effect of simple and easy preparation process, simple preparation process and good shear thickening effect

Active Publication Date: 2019-04-09
HUBEI YANGTIAN PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a shear thickening liquid with simple preparation process, short thickening time and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation method of the shear thickening liquid is as follows: first uniformly mix the poly(N-2-hydroxypropyl)methacrylamide dispersion liquid and the crosslinking component solution, and then adjust the pH value of the system to 4.5-5.5, Then remove the air bubbles in the system.

[0027] The preparation method of the cross-linking component solution is as follows: fully dissolving phenylboronic acid and salicylic hydroxamic acid in a solvent.

[0028] The used main raw materials of the present invention are described as follows:

[0029] Poly(N-2-hydroxypropyl)methacrylamide: a shear thickening liquid skeleton polymer material;

[0030] Phenylboronic acid: white orthorhombic crystal, cross-linked component;

[0031] Salicylhydroxamic acid: white needle crystal, cross-linked component;

[0032] Antioxidant 1010: white crystalline powder, anti-thermal and oxidative aging;

[0033] Antioxidant 168: white crystalline powder, auxiliary antioxidant, phosphite anti...

Embodiment 1

[0036] A kind of shear thickening liquid, is poly (N-2-hydroxypropyl) methacrylamide dispersion liquid, the raw material composition and weight of described poly (N-2-hydroxypropyl) methacrylamide dispersion liquid The number of parts is: poly(N-2-hydroxypropyl)methacrylamide 50, ethylene glycol 30.

[0037] The preparation method of the poly(N-2-hydroxypropyl)methacrylamide dispersion is as follows: adding poly(N-2-hydroxypropyl)methacrylamide and ethylene glycol into a container for ball milling for 12 hours, making Poly(N-2-hydroxypropyl)methacrylamide can be uniformly dispersed in ethylene glycol.

Embodiment 2

[0039] The difference with Example 1 is:

[0040] The raw material composition and parts by weight of the shear thickening liquid are: poly (N-2-hydroxypropyl) methacrylamide dispersion liquid 50, crosslinking component solution 10, antioxidant 10100.3, antioxidant 1680.3. The raw material composition and parts by weight of the cross-linking component solution are: 10 phenylboronic acid, 3 salicylic hydroxamic acid, and 20 dimethyl sulfoxide.

[0041] The preparation method of the shear thickening liquid is as follows: first uniformly mix the poly(N-2-hydroxypropyl)methacrylamide dispersion liquid and the crosslinking component solution, and then use hydrochloric acid to adjust the pH value of the system to 4.5, It is then sufficient to clean with an ultrasonic cleaning machine for 1 hour to remove air bubbles in the system. The preparation method of the cross-linking component solution is as follows: fully dissolving phenylboronic acid and salicylic hydroxamic acid in dimethy...

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PUM

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Abstract

The invention relates to shear thickening liquid. The shear thickening liquid contains the following components in parts by weight: 50-70 parts of poly(N-2-hydroxypropyl)methacrylamide dispersion liquid and 10-20 parts of a cross-linking component solution, wherein the cross-linking component solution contains the following raw materials in parts by weight: 10-15 parts of phenylboronic acid, 3-5 parts of salicylhydroxamic acid and 20-30 parts of a solvent. A preparation method of the shear thickening liquid comprises the steps of uniformly mixing poly(N-2-hydroxypropyl)methacrylamide dispersion liquid with the cross-linking component solution, regulating the pH value of the system to 4.5-5.5, and removing bubbles in the system. The design, namely the shear thickening liquid has a remarkable shear thickening effect and is short in shear thickening time.

Description

technical field [0001] The invention belongs to the field of organic polymer composite materials, and in particular relates to a shear thickening liquid and a preparation method thereof. clothing) and other fields. Background technique [0002] Shear thickening fluid (STF fluid for short) is a kind of non-Newtonian fluid. The fluid is often in the form of a concentrated suspension. Under the rapid increase of shear stress, the viscosity of the liquid increases sharply, and even changes from liquid to solid, and this process is reversible. This characteristic of STF liquid makes it have a wide application prospect in many technical fields such as damping and vibration reduction, personal protection and so on. [0003] At present, the STF liquid usually uses a stable suspension liquid formed by mixing tiny particles such as nano-silica with a certain base liquid (such as ethylene glycol, polyethylene glycol, mineral oil, etc.). This type of liquid belongs to the STF liquid o...

Claims

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Application Information

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IPC IPC(8): C08L33/24C08K5/053C08K5/00C08K5/33C08J3/09
CPCC08J3/097C08J2333/24C08K5/00C08K5/053C08K5/33
Inventor 胡晓红胡承鹏
Owner HUBEI YANGTIAN PLASTIC PROD CO LTD
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