Preparation method of hydrophobic white carbon black

A silica and hydrophobic technology, applied in the field of preparation of hydrophobic silica, can solve problems such as poor modification effect, and achieve the effect of improving modification effect and improving hydrophobicity

Pending Publication Date: 2021-07-23
SANMING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing hydrophobic white carbon black has the p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] The vinyl trimethoxysilane and vinyl triethoxysilane are mixed in a ratio of 1: 1 to obtain a silane coupling agent;

[0025] The silane coupling agent, dichloromethane, a concentration of 10% by weight ratio of dilute sulfuric acid, a silane coupling agent, dichloromethane, dilute sulfuric acid at a temperature of 80 ° C for 1 h. Get a modifier;

[0026] According to the following weight parts, each component is referred to: 2 parts of alkylphenol polyoxyethylene ether, 10 modifiers, 2 parts of fatty acid methyl oxyethylene ether, 3 of Tuwhifluoroalkyl triethoxysilane 60 parts of white carbon black; pour alkylphenol polyoxyethylene ether and modifier into a mixed bucket at a high speed of 5000 r / min under a high speed of 5000 r / min; pour white carbon black into the mixed bucket in an environment of 50 ° C Mix 0.5 h in a medium speed of the rotational speed of 4000 R / min; pour the fatty acid methyl eoxyethylene ether and thirteenctone alkyltriethoxy...

Example Embodiment

[0027] Example 2

[0028] The vinyl trimethoxysilane and vinyl triethoxysilane are mixed in a ratio of 1: 1 to obtain a silane coupling agent;

[0029] The silane coupling agent, dichloromethane, a concentration of 25% by weight is weighted; the silane coupling agent, dichloromethane, and dilute sulfuric acid are mixed at a temperature of 95 ° C. 1- 1.5H is obtained after obtaining a modifier;

[0030] According to the weight fraction, each component is referred to: 8 parts of alkylphenol polyoxyethylene ether, 25 parts of the modifier, 5 parts of the fatty acid methyl ethylene ether, and 6 of Tentezoxoalkyl triethoxysilane. 100 copies of white carbon; pour alkylphenol polyoxyethylene ether and modifier into a mixed bucket at a high speed of 6000 r / min under a high speed of 6000 r / min; pour white carbon black into the mixed bucket in an environment of 90 ° C The mixture was stirred at a medium rotational speed of 5000 R / min, and the fatty acid methyl oxyethylene ether and th...

Example Embodiment

[0031] Example 3

[0032] The vinyl trimethoxysilane and vinyl triethoxysilane are mixed in a ratio of 1: 1 to obtain a silane coupling agent;

[0033] According to the weight ratio of 10: 3: 4, the silane coupling agent, dichloromethane, the concentration of 17%; mixed the silane coupling agent, dichloromethane, dilute sulfuric acid mixed at a temperature of 87 ° C 1.75H After obtaining a modifier;

[0034] According to the weight fraction, each component is referred to: 6 parts of alkylphenol polyoxyethylene ether, 17 modifiers, 3.5 parts of fatty acid methyl oxyethylene ether, and 4.5 parts of thirteenctone alkyl tribeoxysilane. 80 copies of white carbon; pour alkylphenol polyoxyethylene ether and modifier into a mixed bucket at a high speed of 5500 r / min under a high speed of 5500 r / min; pour white carbon black into a mixed bucket in an environment of 70 ° C Mix 0.75 h in a medium rotational speed of 4500 r / min; pour the fatty acid methyl oxyethylene ether and thirteenct...

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PUM

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Abstract

The invention discloses a preparation method of hydrophobic white carbon black. The preparation method comprises the following steps: weighing the following components in parts by weight: 2-8 parts of an emulsifier, 10-25 parts of a modifier, 2-5 parts of a nonionic surfactant, 3-6 parts of a fluorine-containing high-molecular polymer and 60-100 parts of white carbon black; pouring the emulsifier and the modifier into a mixing barrel, and uniformly mixing at a high rotating speed; and pouring the white carbon black into a mixing barrel, and stirring and mixing for 0.5-1 hour at a medium rotating speed in an environment of 50-90 DEG C. The modifier composed of the silane coupling agent, dichloromethane and dilute sulphuric acid is added to modify the white carbon black, the silane coupling agent performs surface grafting modification treatment on the white carbon black, and the dilute sulphuric acid performs acidification treatment on the modifier and a modification environment, so that the modification effect on the white carbon black is improved, and the hydrophobicity of the white carbon black is improved.

Description

technical field [0001] The invention relates to the technical field of preparation of inorganic materials, in particular to a preparation method of hydrophobic white carbon black. Background technique [0002] White carbon black is a light hydrated silica material, which exists in the form of amorphous microporous powder, and is an important chemical product with a wide range of uses. Silica has a large specific surface area, usually greater than 130m2 / g. The powder particles have a large number of microporous structures, and the surface is rich in hydroxyl groups. It has good adsorption, flame retardancy, insulation, suspension, vibration liquefaction, thixotropy, light scattering, Surface graft modification and other characteristics, its significant reinforcing effect has gained important applications in the field of rubber product processing. [0003] The existing hydrophobic white carbon black has the problem of poor modification effect during the preparation process. ...

Claims

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Application Information

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IPC IPC(8): C08K9/06C08K9/04C08K9/02C08K7/26
CPCC08K9/06C08K9/04C08K9/02C08K9/08C08K7/26
Inventor 林福星张建汉念保义罗菊香林碧凡
Owner SANMING UNIV
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