A high-reinforcement rubber latex wet-mixing composite material and its preparation process

A reinforced rubber and wet mixing technology, which is applied in the field of high-reinforced rubber latex wet mixing composite materials and its preparation, can solve problems such as difficult dispersion and high pollution of carbon nanotube modification technology, and achieve improved dispersion Good stability, good batch stability, and improved dispersibility

Active Publication Date: 2022-06-14
SHANDONG DAZHAN NANO MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For the current carbon nanotubes due to self-agglomeration or surface sp 2 Due to the technical problems of difficult dispersion caused by the inertness of hybridization and high pollution of the existing carbon nanotube modification technology, the present invention provides a rubber latex wet-mixing composite material and its preparation process. Nanotubes produce π-π interactions with bio-based amino acids to modify the surface of carbon nanotubes to improve the dispersion performance of carbon nanotubes, and then wet-mix with rubber latex to obtain a uniformly dispersed compound, and finally achieve excellent High reinforcement performance

Method used

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  • A high-reinforcement rubber latex wet-mixing composite material and its preparation process
  • A high-reinforcement rubber latex wet-mixing composite material and its preparation process
  • A high-reinforcement rubber latex wet-mixing composite material and its preparation process

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Embodiment 1

[0040] A kind of rubber latex wet mixing composite material, raw materials include amino acid aqueous solution, carbon nanotubes, carbon black, graphene and rubber latex,

[0041] The mass fraction of amino acids in amino acid aqueous solution is 0.25%, the types of amino acids are phenylalanine and complexine, and the mass ratio of phenylalanine and complexine is 2:1,

[0042] Carbon nanotubes are carbon nanotubes are iron-based multi-walled carbon nanotubes, with a diameter of 10-30 nm and a specific surface area of 200-250 m 2 / g，

[0043] Graphene is a specific surface area of 500-700m 2 / g of graphene oxide prepared by physical method,

[0044] Amino acid: carbon nanotubes: carbon black: the mass ratio of graphene is 2.5:6:40:3,

[0045] Rubber latex is natural latex with a solute mass fraction of 3%,

[0046] Excipients are 129 g zinc oxide, 64 g stearic acid and 64 g sulfur.

[0047] The preparation process of the above-described mixed composite materials comprises the foll...

Embodiment 2

[0057] Rubber latex wet mixing composite material, raw materials include amino acid aqueous solution, carbon nanotubes, carbon black and rubber latex, amino acid mass fraction in amino acid aqueous solution of 0.6%,

[0058] Amino acids: carbon nanotubes: the mass ratio of carbon black is 3:10:35, the types of amino acids are phenylalanine, valine and tryptophan, and the mass ratio of phenylalanine, valine and tryptophan is 1:1:1,

[0059] Carbon nanotubes are iron-based multi-walled carbon nanotubes with a diameter of 2-5 nm and a specific surface area of 1100-1550 m 2 / g，

[0060] Rubber latex is a natural latex with a solute mass fraction of 5%,

[0061] Excipients are 400 g zinc oxide, 200 g stearic acid and 200 g sulfur.

[0062] The preparation process of the above-described mixed composite materials comprises the following steps:

[0063] S1: Prepare an aqueous amino acid solution with a mass fraction of 0.6% of 50L amino acids in a 100L clean container;

[0064]S2: Accordi...

Embodiment 3

[0072] A kind of rubber latex wet mixing composite material, raw materials include amino acid aqueous solution, carbon nanotubes and rubber latex,

[0073] The mass fraction of amino acids in the aqueous solution of amino acids is 0.8%, the types of amino acids are histidine and tryptophan, and the mass ratio of histidine and tryptophan is 2:3,

[0074] Carbon nanotubes are carbon nanotubes are cobalt multi-walled carbon nanotubes, with a diameter of 5-10 nm and a specific surface area of 300-380 m 2 / g，

[0075] Amino acids: the mass ratio of carbon nanotubes is 2:10,

[0076] Rubber latex is natural latex with a solute mass fraction of 5%.

[0077] The preparation process of the above-described mixed composite materials comprises the following steps:

[0078] S1: Prepare an aqueous amino acid solution with a mass fraction of 0.8% amino acids in a 100L clean container;

[0079] S2: According to the ratio of amino acids: carbon nanotubes with a mass of 2:10, the corresponding materi...

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Abstract

The invention relates to the technical field of rubber synthesis, in particular to a high-reinforced rubber latex wet-mixing composite material and its preparation process. The raw materials of the material include amino acid aqueous solution, carbon nanotubes, carbon black, graphene and rubber latex, and the amino acid is Amino acids that can produce π-π interactions with carbon nanotubes; the process includes the following steps: preparing amino acid aqueous solution; adding carbon nanotubes to the prepared amino acid aqueous solution; adding carbon nanotube amino acid dispersions to rubber latex, uniformly breaking Milk mixing; the demulsification material is squeezed out by the crepe machine, and then dried; banburying and debinding. The invention adopts the amino acid capable of producing π-π interaction with the carbon nanotube to modify the surface of the carbon nanotube, and then performs wet mixing with the rubber latex to obtain a uniformly dispersed mixed rubber and finally achieve excellent high-reinforcement performance.

Description

Technical field [0001] The present invention relates to the field of rubber synthesis technology, specifically to a high-strength rubber latex wet mixing composite material and the preparation process thereof. Background [0002] As a one-dimensional nanomaterial, carbon nanotubes have excellent physical and mechanical properties, which are mainly coaxial tubes composed of several layers to dozens of layers of carbon atoms arranged in a hexagonal shape. Carbon nanotubes have a very large length-to-diameter ratio, typically between 1-100 nm in diameter and several microns to hundreds of microns in length. Due to its large aspect ratio, carbon nanotubes have excellent performance in mechanics, electricity, and thermal conductivity, so they have broad potential application prospects in many fields such as catalyst carriers, rubber and plastic composites, electrochemical materials, and photoelectric sensing. [0003] Carbon nanotubes can be roughly divided into clustered carbon nanot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/02C08L9/02C08L9/08C08K13/06C08K9/12C08K9/04C08K3/04B29B7/74B29C35/02
CPCC08K13/06C08K9/12C08K9/04C08K3/041C08K3/04C08K3/042B29B7/7461B29C35/02C08K2201/006C08K2201/003C08L7/02
Inventor 王莲莲耿磊刘滨李岩宋尧王哲
Owner SHANDONG DAZHAN NANO MATERIALS
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