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Nanocomposite and preparation method thereof

A technology of nanocomposite materials and carbon nanotubes, which is applied in the field of nanocomposite materials and their preparation, can solve the problems of poor dispersion of rubber matrix, lower mechanical properties and low density of rubber products, and achieve improved tensile strength and tear strength, Effects of improved wet skid resistance and increased modulus

Active Publication Date: 2017-10-03
SHANDONG DAZHAN NANO MATERIALS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] It is precisely because of the huge aspect ratio and large specific surface area of ​​carbon nanotubes that they are prone to agglomeration and poor dispersion in the rubber matrix
It is precisely because carbon nanotubes have nanotube characteristics such as extremely strong surface effects that carbon nanotubes are easy to agglomerate and entangle, and form pimples visible to the naked eye in rubber, which will significantly reduce the mechanical properties of rubber products.
In addition, carbon nanotubes are large in size and low in density, so they are prone to flying during operation and processing, causing pollution to the environment and waste of raw materials

Method used

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  • Nanocomposite and preparation method thereof
  • Nanocomposite and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0045] Embodiment 1 A kind of preparation method of nanocomposite material

[0046] Specific steps are as follows:

[0047] (1) Add its weight 5.5% radiation crosslinking agent trimethylolpropane triacrylate in the superfine fully vulcanized carboxylated styrene-butadiene rubber latex, stir for 45min, and obtain superfine fully vulcanized carboxylated styrene-butadiene rubber through 20kGy electron beam irradiation rubber latex;

[0048] (2) Pour carbon nanotubes into water, the mass ratio of carbon nanotubes to water is 3.5:96.5, under 2000rpm rotating speed condition, stir 65min, prepare carbon nanotube slurry; Described carbon nanotubes are multi-walled carbon nano Tube;

[0049] (3) Mix and stir the ultra-fine fully vulcanized carboxylated styrene-butadiene rubber emulsion and carbon nanotube slurry with a mass ratio of 1:5.5, stir for 40min, and make a composite powder of UFPCSBR and carbon nanotube through pressure spray drying; pressure spray The dry spray pressure i...

Embodiment 2

[0054] Embodiment 2 A kind of preparation method of nanocomposite material

[0055] Specific steps are as follows:

[0056] (1) Add its weight 2% radiation crosslinking agent propane trimethylol triacrylate in the superfine fully vulcanized carboxylated styrene-butadiene rubber latex, stir 35min, through 30kGy electron beam irradiation, obtain superfine fully vulcanized carboxylated styrene-butadiene rubber latex ;

[0057] (2) Pour the single-walled carbon nanotubes into water, the mass ratio of the single-walled carbon nanotubes to water is 1:99, and stir for 50 minutes under the condition of a rotating speed of 1100pm to prepare a carbon nanotube slurry;

[0058] (3) mixing and stirring the superfine fully vulcanized carboxylated styrene-butadiene rubber emulsion and carbon nanotube slurry with a mass ratio of 1:3, stirring for 30 min, and pressure spray drying to obtain a composite powder of UFPCSBR and carbon nanotubes;

[0059] (4) The composite powder obtained in step...

Embodiment 3

[0063] Embodiment 3 A kind of preparation method of nanocomposite material

[0064] Specific steps are as follows:

[0065] (1) add its weight 8% radiation crosslinking agent pentaerythritol tetraacrylate in the superfine fully vulcanized carboxylated styrene butadiene rubber latex, stir 55min, through 25kGy electron beam irradiation, obtain superfine fully vulcanized carboxylated styrene butadiene rubber latex;

[0066] (2) Pour multi-walled carbon nanotubes into water, the mass ratio of carbon nanotubes to water is 0.5-5:99.5-95; under the condition of 2800rpm rotating speed, stir for 100min to prepare carbon nanotube slurry;

[0067] (3) Mixing and stirring the superfine fully vulcanized carboxylated styrene-butadiene rubber emulsion and the carbon nanotube slurry with a mass ratio of 1:8, stirring for 55min, and drying under pressure to obtain a composite powder of UFPCSBR and carbon nanotubes;

[0068] The spray pressure of pressure spray drying is 0.45MPa, the spray inl...

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Abstract

The invention relates to a nanocomposite and a preparation method thereof. The preparation method comprises the following steps: preparation of a superfine full-vulcanized carboxylated styrene butadiene rubber emulsion; preparation of carbon nanotube slurry; preparation of composite powder of UFPCSBR and a carbon nanotube; preparation of an initial composite of the UFPCSBR, the carbon nanotube and rubber; and mixing and vulcanization fir acquisition of the nanocomposite of the UFPCSBR, the carbon nanotube and the rubber. The nanocomposite provided by the invention has relatively high mechanical performance, abrasive resistance, thermal conductivity and very low surface resistance.

Description

technical field [0001] The invention relates to a nanocomposite material and a preparation method thereof, in particular to a composite material prepared by wet blending of UFPCSBR, carbon nanotubes and rubber, belonging to the technical field of nanomaterial modified filled rubber, Background technique [0002] As a one-dimensional nanomaterial, carbon nanotubes have excellent physical and mechanical properties. They are mainly coaxial circular tubes with several to dozens of layers of carbon atoms arranged in a hexagonal shape. It has a very large aspect ratio, the diameter is usually between 1-100nm, and the length is several microns to hundreds of microns. It is precisely because of its large aspect ratio that carbon nanotubes perform very well in terms of mechanics, electricity, and electrical and thermal conductivity. Due to its excellent properties, carbon nanotubes have broad and potential application prospects in many fields such as catalyst supports, rubber-plasti...

Claims

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Application Information

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IPC IPC(8): C08L7/02C08L9/08C08L11/02C08L13/02C08K13/04C08K7/24C08J3/28C08J3/12
CPCC08J3/12C08J3/28C08J2307/02C08J2309/08C08J2311/02C08J2313/02C08J2413/02C08K2201/011C08L7/02C08L9/08C08L11/02C08L2205/03C08L13/02C08K13/04C08K7/24
Inventor 李岩李晓蕾耿磊鞠坤
Owner SHANDONG DAZHAN NANO MATERIALS
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