Shear thickening fluid based on molecular colloid and preparation method and application of shear thickening fluid

A technology of molecular colloids and fluids, applied in chemical instruments and methods, textiles and papermaking, compounds of Group 4/14 elements of the periodic table, etc. Less problems, to achieve the effect of low cost, simple process and preventing agglomeration

Active Publication Date: 2013-02-13
BEIJING UNIV OF CHEM TECH
View PDF8 Cites 50 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the prior art also has the following problems: due to the less content of organic groups on the surface of silica, the affinity between it and high-performance fiber fabrics is poor; in the process of configuring nano-shear thickening fluid, Only nanoparticles with larger particle sizes and high-concentration nanoparticle systems exhibit shear thickening properties at lower shear rates; preparation of nano-SiO with larger particle sizes 2 The preparation process required by the particles is more complicated, and the phenomenon of agglomeration of nano-silica during the preparation process is more serious. Based on these problems in the preparation process, there is still a large room for improvement.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shear thickening fluid based on molecular colloid and preparation method and application of shear thickening fluid
  • Shear thickening fluid based on molecular colloid and preparation method and application of shear thickening fluid
  • Shear thickening fluid based on molecular colloid and preparation method and application of shear thickening fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of PBDMS (filled with nano-silica) molecular colloid:

[0042] (1) Weigh nano-silica, boric acid and hydroxy silicone oil with a mass ratio of 1:1:10, of which hydroxy silicone oil (Zhonghao Chenguang Chemical Research Institute, brand GY-209-3, polymerization degree 3-5 ) is 350g, boric acid and nano silicon dioxide (Degussa Silica Co., Ltd., the trade mark is VN 3 ) have a mass of 35g respectively. First, add nano silicon dioxide into hydroxy silicone oil, stir at a high speed (1000rpm / min), after the nanoparticles are evenly distributed in hydroxy silicone oil, then add boric acid particles, put them in a beaker and stir fully, the stirring time is 0.5h;

[0043] (2) Pour the above-mentioned suspension dispersion system into an aluminum pan, and then place the aluminum pan on a heating plate with a constant temperature of 300°C. The mixed liquid in no longer flows;

[0044] (3) After the reaction was completed, the material in the aluminum plate was co...

Embodiment 2

[0047] Preparation of PBDMS (filled with nano-montmorillonite) molecular colloid:

[0048] (1) Weigh nanometer montmorillonite, boric acid and hydroxy silicone oil with a mass ratio of 1:1:10, among which hydroxy silicone oil (Zhonghao Chenguang Chemical Research Institute, brand GY-209-3, polymerization degree 3-5 ) is 350g, boric acid and nano-montmorillonite (Zhejiang Fenghong New Material Co., Ltd., the trade mark is DK 1 ) have a mass of 35g respectively. Add the nano-montmorillonite into the hydroxyl silicone oil, stir at a high speed (1000rpm / min), and after the nanoparticles are evenly distributed in the hydroxyl silicone oil, then add the boric acid particles, put them in a beaker and stir them thoroughly, and the stirring time is 0.5h;

[0049] (2) Pour the above-mentioned suspension system into an aluminum pan, and then place the aluminum pan on a heating plate with a constant temperature of 300°C. The mixed liquid no longer flows;

[0050] (3) After the reaction...

Embodiment 3

[0053] Preparation of PBDMS (filled with nano titanium dioxide) molecular colloid:

[0054] (1) Weigh nano-titanium dioxide, boric acid and hydroxy silicone oil with a mass ratio of 0.5:0.5:9.5, of which hydroxy silicone oil (Zhonghao Chenguang Chemical Research Institute, brand GY-209-3, polymerization degree 3-5) The quality of boric acid and nano-titanium dioxide (Henan Baililian Chemical Co., Ltd., trade mark is BLR-688) is 15g respectively. Add the nano-titanium dioxide into the hydroxyl silicone oil, stir at a high speed (800rpm / min), and after the nanoparticles are evenly distributed in the hydroxyl silicone oil, then add boric acid particles, put them in a beaker and stir thoroughly, and the stirring time is 0.5h;

[0055] (2) Pour the above-mentioned suspension system into an aluminum pan, and then place the aluminum pan on a heating plate with a constant temperature of 350°C. The mixed liquid in no longer flows;

[0056] (3) After the reaction was completed, the ma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
tensile strengthaaaaaaaaaa
elastic modulusaaaaaaaaaa
Login to view more

Abstract

The invention relates to shear thickening fluid based on a molecular colloid, as well as a preparation method and an application of the shear thickening fluid. The shear thickening fluid consists of an organic solvent and a molecular colloid system formed by inorganic nano grains, boric acid, hydroxyl silicone oil and a plasticizing agent, and is used for dipping high-property fiber fabric and preparing a protective material to improve a puncture-proof property of the material; the preparation technology is simple; the preparation period is short; the controllability of an operation is high; the stability of the property of a product is improved; the energy consumption is reduced; and moreover, large-scale production is facilitated.

Description

Technical field: [0001] The invention relates to a shear thickening fluid based on molecular colloid, its preparation method and application. Background technique: [0002] Since the late 1980s, people began to study how to use the shear thickening phenomenon. N.J.Wagner of the University of Delaware in the United States studied the shear of nano-silica with different particle sizes dispersed in the polyethylene glycol system. In the field of rheology, many new applications of shear-thickening fluids have begun to appear. People have invented different types of shear-thickening fluid compositions and applied them to sports products and personal protection products. [0003] The British D30 company has developed a "shear thickening liquid" foam, which is applied to the goalkeeper's gloves on the football field, skiers' ski boots, ski suits, etc., which can greatly improve the impact resistance of the material, thus providing great support for various sports. Provide security...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643D06M13/513D06M11/79D06M11/76D06M11/46C08G77/398C07F7/18
Inventor 吴丝竹杨威赵秀英宋梦张立群
Owner BEIJING UNIV OF CHEM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap