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Carbon functional nanocomposite and preparation method thereof

A technology of functional composite materials and carbon nanomaterials, applied in the field of composite materials, can solve the problems of poor processing, easy flying, agglomeration of carbon nanotubes and graphene, etc., to improve comprehensive performance, avoid environmental pollution, and solve the problem of agglomeration. Effect

Inactive Publication Date: 2017-03-15
钟光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current practice is basically to use carbon nanotubes and graphene separately, and there are also problems such as serious agglomeration of carbon nanotubes and graphene and difficult processing of Yifeiyang, which leads to the inability to fully utilize its performance advantages and limits its application

Method used

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  • Carbon functional nanocomposite and preparation method thereof
  • Carbon functional nanocomposite and preparation method thereof
  • Carbon functional nanocomposite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: the preparation of masterbatch

[0027] The amount of raw materials: carbon nanotubes and graphene according to the ratio of 20:1,

[0028] 50-60 parts of fluororubber, 3-5 parts of wetting agent, 2-5 parts of softener (fluorosilicone oil), and 30-40 parts of carbon nanomaterials.

[0029] The carbon nanotubes and graphene are placed in a closed high-speed mixer according to a certain ratio, and the temperature is raised by high-speed stirring. The dispersant is added through the feeding hole for atomization surface treatment, and the surface-treated carbon nanomaterials are obtained after cooling.

[0030] Add fluorine rubber, sizing agent and softener to the internal mixer and mix evenly according to a certain rubber mixing process, add the above-mentioned carbon nanomaterials, and mix again evenly on the internal mixer and open-line machine according to a certain process. , and granulated by a granulator to obtain a high-concentration carbon nanometer ...

Embodiment 2

[0032] Add the carbon nanometer fluororubber pre-dispersed functional masterbatch in Example 1 to the following materials according to 10 parts, 20 parts, 30 parts, and 40 parts to obtain the fluororubber gasket vulcanizate modified by the carbon nanotube predispersed masterbatch , the specific performance is shown in Table 1:

[0033] Table 1

[0034] material name 1# 2# 3# 4# 5# Bisphenol 70 Mooney fluorine rubber (Chenguang) 100 94 88 82 76 MgO-150 3 3 3 3 3 Ca(OH) 2

6 6 6 6 6 WAX 2 2 2 2 2 Carbon nanotube fluororubber pre-dispersed functional masterbatch 10 20 30 40 N990 20 AF 2 2 2 2 2 BPP 0.5 0.5 0.5 0.5 0.5 total 133.5 117.5 121.5 125.5 129.5

[0035] Technical data

[0036]

[0037]

[0038] Compared with carbon black, the addition of carbon nanotube pre-dispersed masterbatch can greatly improve the tensile strength and tear strength of fluororubbe...

Embodiment 3

[0040] Add the carbon nanometer fluororubber pre-dispersed functional masterbatch in Example 1 to the following materials according to 8 parts and 12 parts to obtain the carbon nanometer predispersed masterbatch modified fluororubber gasket vulcanizate. The specific properties are shown in Table 2:

[0041] Table 2

[0042] material name 1 2 3 Viton-70 (morning light) 100 95.2 92.8 MgO-150 3 3 3 Ca(OH) 2

6 6 6 WAX 2 2 2 Carbon Nano Fluorine Rubber Pre-dispersed Functional Masterbatch 8 12 N990 20 AF 2 2 2 BPP 0.5 0.5 0.5 total 133.5 120.8 124.5

[0043] Technical data

[0044]

[0045]

[0046] Compared with fluororubber products with similar hardness and carbon black reinforcement, the addition of carbon nanotube pre-dispersed masterbatch can improve the strength and constant elongation, greatly improve the wear resistance, and at the same time greatly improve the high-temperat...

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Abstract

The invention belongs to the composite field, and particularly relates to a carbon functional nanocomposite and a preparation method thereof. Carbon nanotubes and graphene are mixed uniformly according to a certain proportion and a certain process so as to obtain a carbon nanomaterial (a mixture of the carbon nanotubes and the graphene), and the surface of the carbon nanomaterial is processed so as to eliminate or reduce Van der Waals force and Coulombian force among the carbon nanotubes, and improve interface adhesion of the carbon nanotubes and rubber molecules, and finally uniform dispersion of the carbon nanomaterial in rubber is achieved, and integrated performance of a rubber product is improved. On the premise of solving an aggregation problem and preventing flying material from polluting environment, advantages of the carbon nanotubes and the graphene are brought into full play to the utmost, and then the high performance carbon nano rubber product is prepared.

Description

technical field [0001] The invention belongs to the field of composite materials, in particular to a carbon nano functional composite material and a preparation method thereof. Background technique [0002] The existing technology only mechanically blends carbon nanotubes or graphene, related additives, and rubber through internal mixers, on-line machines or twin-screws, and there are still serious problems between carbon nanotubes, graphene, and other materials. The problem of agglomeration; at the same time, there is a problem of poor bonding between carbon nanotubes or graphene as an inorganic material and rubber. [0003] The above problems lead to the inability of carbon nanotubes or graphene to disperse well in rubber, nor can they fully exert their performance characteristics, but instead show many shortcomings (such as rapid increase in hardness, obvious compression heat generation, and decrease in strength, etc.). [0004] At the same time, carbon nanotubes and gra...

Claims

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Application Information

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IPC IPC(8): C08L27/12C08L9/02C08L23/16C08K13/06C08K7/24C08K3/04
CPCC08L27/12C08K2201/011C08L9/02C08L23/16C08L2205/025C08L2205/03
Inventor 钟光
Owner 钟光
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