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Liquid rubber peeling graphene and preparation method of super-hydrophobic composite material of liquid rubber peeling graphene

A technology for peeling graphene and liquid rubber, applied in conjugated diene coatings, coatings, etc., can solve problems such as difficulty in meeting social needs, expensive raw materials, harsh process conditions, etc., to achieve aging resistance, self-cleaning characteristics and mechanical properties. performance, reducing raw material costs, and shortening the effect of the process

Active Publication Date: 2019-11-01
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, most of the superhydrophobic materials prepared in the above-mentioned inventions or a large number of literature reports have insufficient strength and are difficult to meet the needs of the society, and either the process is complicated, the raw materials are expensive, or the process conditions are harsh, making it difficult to prepare on a large scale.

Method used

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  • Liquid rubber peeling graphene and preparation method of super-hydrophobic composite material of liquid rubber peeling graphene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Step 1 Grinding Modification of Mineral Powder

[0048] Add 5 grams of attapulgite powder into the ball mill tank, add water to make slurry suspension per 100 ml, add 0.025 g of sodium hexametaphosphate and 0.025 g of silane coupling agent KH570, and use a planetary ball mill with a rotation speed of 900 rpm for 30 minutes. After ultrasonic dispersion for 30 minutes, centrifuge at 4000rpm for 20 minutes, discard the supernatant, add 20 times the volume of deionized water to the bottom sediment, shake well, and ultrasonically disperse for 5 minutes. Discard the supernatant, add deionized water to the sediment at the bottom, shake well, ultrasonically disperse, and centrifuge for solid-liquid separation” to complete one wash, and wash 3 times in total; after discarding the upper washing liquid, add the same volume of anhydrous Shake with ethanol, ultrasonically disperse for 5 minutes and centrifuge at 10,000rpm for 10 minutes, wash twice with absolute ethanol, discard the...

Embodiment 2

[0060] Step 1 Grinding Modification of Mineral Powder

[0061] Add 20 grams of montmorillonite ore powder into the ball mill tank, add water to make slurry suspension per 100 ml, add 0.04 g of sodium hexametaphosphate and 0.01 g of cetyltrimethylammonium bromide, and use a rotation speed of 500 rpm Milled in a planetary ball mill for 180 minutes, then ultrasonically dispersed for 10 minutes, centrifuged at 10,000 rpm for 5 minutes, discarded the supernatant, added 25 times the volume of deionized water to the bottom sediment, shaken, and ultrasonically dispersed for 5 minutes, under the same conditions "Use a centrifuge to separate the solid and liquid again, discard the supernatant, add deionized water to the bottom sediment, shake well, ultrasonically disperse, and centrifuge to separate the solid and liquid" to complete one wash, and wash twice in total; after discarding the upper washing liquid , add the same volume of absolute ethanol as the washing water, shake well, ult...

Embodiment 3

[0072] Step 1 Grinding Modification of Mineral Powder

[0073] Add 10 grams of kaolin mineral powder into the ball mill tank, add water to make slurry suspension per 100 ml, add 0.05 g of polyvinyl alcohol and 0.01 g of octylphenol polyoxyethylene ether, and use a planetary ball mill with a rotation speed of 600 rpm for 60 minutes, then Ultrasonic dispersion for 20 minutes, 8000rpm centrifuge for solid-liquid separation for 10 minutes, discard the supernatant, add 15 times the volume of deionized water to the bottom sediment, shake well, ultrasonic dispersion for 5 minutes, under the same conditions, "use the centrifuge to separate the solid and liquid again, Discard the supernatant, add deionized water to the sediment at the bottom, shake well, ultrasonically disperse, and centrifuge for solid-liquid separation to complete one wash, and wash 3 times in total. After discarding the upper washing liquid, add the same volume of anhydrous Shake with ethanol, ultrasonically dispers...

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Abstract

The invention discloses liquid rubber peeling graphene and a preparation method of a super-hydrophobic composite material of the liquid rubber peeling graphene. The preparation method comprises the following steps: mixing different types of liquid rubber and graphite powder, and peeling crystalline flake graphite, expanded graphite or expansible graphite under the action of mechanical shearing soas to obtain rubber-based graphene composite emulsion blocks or rubber-based graphene oxide composite emulsion blocks; dissolving and diluting the rubber-based graphene composite emulsion blocks or the rubber-based graphene oxide composite emulsion blocks after rubber peeling by using an organic solvent, adding modified nano mineral powder into the dilution liquid as a substrate raw material, performing uniform dispersion so as to form a graphene-mineral mixed rubber liquid system or a graphene oxide-mineral mixed rubber liquid system, and further adding a dilution coupling agent solution anda hydrolysis promoter, so as to finally obtain a high-strength rubber-based nano mineral fiber-graphene or graphene oxide composite super-hydrophobic composite membrane material. By adopting the preparation method, the course can be greatly shortened, and the cost can be lowered.

Description

technical field [0001] The invention relates to a method for synthesizing a superhydrophobic composite material through the microemulsion hydrolysis method of a silane coupling agent using liquid rubber exfoliated graphene and its dissolved suspension and modified natural nanofiber mineral as raw materials, belonging to the field of preparation of new nano functional materials . Background technique [0002] Since Professor Barthlott of the University of Bern in Germany has studied the self-cleaning properties of lotus leaves that leave the sludge without staining, and found that there are micro-nano-structured "microprotrusions" on the surface of lotus leaves and their surfaces are covered with waxy substances, the two Since the joint action has formed the "lotus leaf effect". It has been found that many organisms in nature, such as water striders, gecko soles, butterfly wings, lotus leaves, rice leaves, etc., have special micro-nano hierarchical structures and waxy layers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/16C09D109/02C09D7/62C09D7/61C09D7/63C09D4/02C09D4/06
CPCC08K2003/2296C09D4/06C09D109/02C09D123/16C09D7/61C09D7/62C09D7/63C08K13/06C08K9/06C08K3/346C08K3/042C08K3/22C08K5/09C08K5/14C08K9/04
Inventor 汤庆国王磊田光燕梁秀红梁金生
Owner HEBEI UNIV OF TECH