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Graphene-based organosilicon composite elastomer microparticles and its preparation method and application

A graphene-based and silicone-based technology, applied in the field of materials, can solve problems such as poor crack resistance, low impact strength, and inability to withstand boiling water, and achieve excellent temperature resistance, outstanding weather resistance, and adjustable softness and hardness.

Active Publication Date: 2020-09-22
CHANGZHOU INST OF LIGHT IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of graphene-based organosilicon composite elastomer particle and preparation method, and it is used in general grade polystyrene or general grade epoxy resin product, to solve the problem of general grade polystyrene or general grade After curing, the epoxy resin is hard and brittle, has poor crack resistance, low impact strength, poor heat resistance, cannot withstand boiling water, and can only be used at lower temperatures and lower loads.

Method used

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  • Graphene-based organosilicon composite elastomer microparticles and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Preparation of catalyst emulsion A: a solution of 1 part of platinum catalyst, 97 parts of deionized water and 8 parts of polyoxyethylene nonylphenol ether was emulsified and dispersed with a colloid mill to form catalyst emulsion A with an average particle size of 0.25 μm;

[0032] (2) Preparation of the main body emulsion B: 50 parts of double-ended vinyl silicone oil with a viscosity of 400cps, 3 parts of side hydrogen-containing silicone oil with a viscosity of 50cps, after mixing evenly, add 9 parts of deionized water and 0.5 parts of polyoxygen Aqueous solution prepared by ethylene nonylphenol ether, 3 parts of graphene powder with particle size of 2 μm prepared by physical method, fully stirred and mixed, emulsified with a colloid mill to form an emulsion, and then 35 parts of deionized water were added to obtain an emulsion with an average particle size of 2 μm B;

[0033] (3) Add 0.2 parts of catalyst emulsion A to 100 parts of emulsion B, stir at 25°C for ...

Embodiment 2

[0035] (1) Preparation of catalyst emulsion A: a solution of 1 part of platinum catalyst, 97 parts of deionized water and 8 parts of polyoxyethylene nonylphenol ether was emulsified and dispersed with a colloid mill to form catalyst emulsion A with an average particle size of 0.25 μm;

[0036] (2) Preparation of the main body emulsion B: 50 parts of double-ended vinyl silicone oil with a viscosity of 1000cps, 1.5 parts of side hydrogen-containing silicone oil with a viscosity of 50cps, after mixing evenly, add 9 parts of deionized water and 0.5 parts of polyoxygen The aqueous solution prepared by ethylene nonylphenol ether, 3 parts of graphene powder with a particle size of 1 μm prepared by physical method, after fully stirring and mixing, emulsified with a colloid mill to form an emulsion, and then added 35 parts of deionized water to obtain a graphene powder with an average particle size of 1.5 μm. Emulsion B;

[0037](3) Add 0.2 parts of catalyst emulsion A to 100 parts of ...

Embodiment 3

[0039] (1) Preparation of catalyst emulsion A: a solution of 1 part of platinum catalyst, 97 parts of deionized water, 4 parts of polyoxyethylene nonylphenol ether and 4 parts of high-carbon fatty alcohol polyoxyethylene ether (BASF AEO-3), using colloid Grinding, emulsifying and dispersing to prepare catalyst emulsion A with an average particle size of 0.25 μm;

[0040] (2) Preparation of main emulsion B: 50 parts of double-ended vinyl silicone oil with a viscosity of 2000cps, 3 parts of double-ended hydrogen-containing silicone oil with a viscosity of 50cps, after stirring and mixing evenly, add 9 parts of deionized water, 0.25 parts of polystyrene An aqueous solution prepared with oxyethylene nonylphenol ether and 0.25 parts of high-carbon fatty alcohol polyoxyethylene ether (BASF AEO-3), 3 parts of graphene powder with a particle size of 3 μm prepared by a physical method, fully stirred and mixed, and then emulsified with a colloid mill. into an emulsion, and then add 35 p...

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Abstract

The invention belongs to the technical field of materials, and relates to a graphene-based silicone composite elastomer micro-particle, and a preparation method and an application thereof. The composite elastomer micro-particle comprises graphene, vinyl silicone oil, a crosslinking agent, a catalyst, a surfactant, a deionized water and a demulsifier. The preparation method comprises the followingsteps: preparing a catalyst emulsion A from the catalyst, the surfactant, and deionized water in proportion, then preparing an emulsion B from graphene, vinyl silicone oil, the cross-linking agent, the surfactant and deionized water, carrying out uniform mixing and a cross-linking reaction on the emulsion A and the emulsion B under certain conditions, adding the demulsifier, performing demulsification, then performing filtration, washing the obtained reaction product with water, drying the washed reaction product, and smashing the dried reaction product by a jet mill to obtain the graphene-based silicone composite elastomer micro-particle. The preparation method has the advantages of simplicity in operation, mutual cooperation of all the raw materials, realization of industrial large-scaleproduction, and suitableness for being promoted and applied.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a graphene-based organosilicon composite elastomer particle, a preparation method and application thereof. Background technique [0002] Since graphene was prepared for the first time in 2004, graphene has been hailed as the "king of new materials" and "black gold". A quasi-two-dimensional crystal material with a single atomic layer has excellent properties such as high electrical conductivity, high strength, and high thermal conductivity. These excellent properties of graphene make it have a good application prospect in the field of functional polymers. [0003] Polystyrene has low water absorption, good mechanical properties and dimensional stability in wet environment, good optical properties, excellent electrical properties, and good radiation resistance. In the electromechanical industry, instrumentation, communication equipment industry, etc., it has been wid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/05C08L25/06C08L63/00C08K3/04
CPCC08L25/06C08L63/00C08L83/04C08L2201/08C08L2205/025C08L71/02C08K3/042
Inventor 费建明朱建向联合
Owner CHANGZHOU INST OF LIGHT IND TECH