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Preparation method and application of white carbon black for reinforcement

A white carbon black and reinforcement technology, applied in the field of white carbon black, can solve problems such as poor reinforcement performance and small specific surface area, and achieve the effects of improving mechanical properties, improving reinforcement performance, and strengthening reinforcement performance

Pending Publication Date: 2022-01-11
无锡恒诚硅业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a preparation method and application of white carbon black for reinforcement. Through the adjustment of the process in the preparation process, the poor reinforcing performance and small specific surface area of ​​the white carbon black for reinforcement prepared by the current process are solved. The problem

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  • Preparation method and application of white carbon black for reinforcement
  • Preparation method and application of white carbon black for reinforcement

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Embodiment 1

[0041] This embodiment provides a preparation method of white carbon black for reinforcement, the preparation method comprising the following steps:

[0042] (1) carry out the first treatment after mixing the water glass solution and the first treatment liquid to obtain a slurry;

[0043] (2) performing the second treatment after mixing the slurry obtained in step (1) with the second treatment liquid, and obtaining the white carbon black for reinforcement through solid-liquid separation;

[0044] The modulus of the described water glass solution of step (1) is 1.7; Described the first processing liquid comprises chloroacetic acid and ammonium citrate; The mol ratio of chloroacetic acid and ammonium citrate is 1:0.4 in the described first processing liquid; The volume ratio of the water glass solution and the first treatment liquid is 1:2.5; the first treatment is carried out under a protective atmosphere; the gas of the protective atmosphere includes carbon dioxide gas; the vo...

Embodiment 2

[0048] This embodiment provides a preparation method of white carbon black for reinforcement, the preparation method comprising the following steps:

[0049] (1) carry out the first treatment after mixing the water glass solution and the first treatment liquid to obtain a slurry;

[0050] (2) performing the second treatment after mixing the slurry obtained in step (1) with the second treatment liquid, and obtaining the white carbon black for reinforcement through solid-liquid separation;

[0051] The modulus of the described water glass solution of step (1) is 2; Described the first processing liquid comprises chloroacetic acid and ammonium citrate; The mol ratio of chloroacetic acid and ammonium citrate is 1:0.5 in the described first processing liquid; The volume ratio of the water glass solution and the first treatment liquid is 1:2; the first treatment is carried out under a protective atmosphere; the gas of the protective atmosphere includes carbon dioxide gas; the volume...

Embodiment 3

[0055] This embodiment provides a preparation method of white carbon black for reinforcement, the preparation method comprising the following steps:

[0056] (1) carry out the first treatment after mixing the water glass solution and the first treatment liquid to obtain a slurry;

[0057] (2) performing the second treatment after mixing the slurry obtained in step (1) with the second treatment liquid, and obtaining the white carbon black for reinforcement through solid-liquid separation;

[0058] The modulus of the described water glass solution of step (1) is 1.5; Described the first processing liquid comprises chloroacetic acid and ammonium citrate; The mol ratio of chloroacetic acid and ammonium citrate is 1:0.5 in the described first processing liquid; The volume ratio of the water glass solution and the first treatment liquid is 1:3; the first treatment is carried out under a protective atmosphere; the gas of the protective atmosphere includes carbon dioxide gas; the volu...

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Abstract

The invention relates to a preparation method and application of white carbon black for reinforcement, and the preparation method comprises the following steps of (1) mixing a water glass solution and a first treatment solution, and carrying out first treatment to obtain slurry, wherein the first treatment liquid comprises chloroacetic acid and ammonium citrate; and (2) mixing the slurry obtained in the step (1) with a second treatment liquid, carrying out second treatment, and carrying out solid-liquid separation to obtain the reinforcing white carbon black, wherein the second treating fluid comprises hydrochloric acid and acetic acid. According to the scheme provided by the invention, the preparation of the high-performance white carbon black is realized through the design of the preparation process and multiple times of treatment by adopting specific composition treatment, the specific surface area of the prepared white carbon black can reach 200-230cm <2> / g, and meanwhile, the reinforcing performance of the white carbon black used as a reinforcing material is remarkably improved; and after a rubber product is reinforced, the mechanical property is well improved.

Description

technical field [0001] The present application relates to the field of white carbon black, in particular to a preparation method and application of white carbon black for reinforcement. Background technique [0002] At present, silica is widely used in various fields due to its good specific surface properties, and the preparation method of silica has obvious influence on its properties. [0003] Disclosed as CN107140643A is a kind of preparation method of high-strength and easily dispersible white carbon black, it uses fluosilicic acid as silicon raw material, is ammoniation agent step by step to carry out ammoniation reaction with gas ammonia, and in the second ammoniation reaction With the addition of dispersant, the prepared white carbon black is easy to disperse and has high reinforcing performance. [0004] CN1337355A discloses a method for preparing high-reinforcing white carbon black by ammonating sodium fluorosilicate. The specific surface area of ​​the white carbo...

Claims

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Application Information

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IPC IPC(8): C01B33/12C08K7/26
CPCC01B33/12C08K7/26C08K2201/006C01P2006/12Y02T10/86
Inventor 陈南飞卢爱平王明贺陈辰陈家树史彤
Owner 无锡恒诚硅业有限公司
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