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Nonionic polymer grinding aid and preparation method thereof

A grinding aid, non-ionic technology, applied in the field of non-ionic polymer grinding aid and its preparation, can solve problems such as rare reports, achieve the effects of simple production process, easy mass production, and avoiding flocculation and sedimentation

Active Publication Date: 2016-03-30
上海拓径新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few reports on polymer grinding aids currently used in carbon black grinding

Method used

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  • Nonionic polymer grinding aid and preparation method thereof
  • Nonionic polymer grinding aid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of dicarboxylic acid A1: Add 1 L of 1,4-dioxane as a solvent in a reaction kettle at a temperature of 70°C, add 1.92 kg of trimellitic anhydride and 2.70 kg of stearyl alcohol into the reaction kettle, stir and mix evenly. Then react at a constant temperature at 120° C. for 3.0 h to obtain a dioxane solution of dicarboxylic acid A1.

Embodiment 2

[0023] Preparation of dicarboxylic acid A2: Add 1 L of 1,4-dioxane as a solvent in a reaction kettle at a temperature of 65° C., add 1.92 kg of trimellitic anhydride and 2.40 kg of cetyl alcohol into the reaction kettle, stir and mix evenly. Then react at a constant temperature at 110° C. for 2.5 h to obtain a dioxane solution of dicarboxylic acid A2.

Embodiment 3

[0025] Preparation of dicarboxylic acid A3: Add 1 L of 1,4-dioxane as a solvent in a reaction kettle at a temperature of 60° C., add 1.92 kg of trimellitic anhydride and 1.80 kg of dodecanol into the reaction kettle, and stir and mix evenly. Then react at a constant temperature at 100° C. for 2.0 h to obtain a dioxane solution of dicarboxylic acid A3.

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Abstract

The invention relates to a nonionic polymer grinding aid and a preparation method thereof. The non-ionic polymer grinding aid for carbon black oily dispersion system is a mixture of one or two dibasic carboxylic acids and ethylene glycol in a molar ratio of 1:1.5-2.3, and reacts under a metal compound catalyst owned. The dicarboxylic acid is produced by esterification of trimellitic anhydride and fatty alcohol or fatty alcohol polyoxyethylene ether in a molar ratio of 1:1. The nonionic polymer grinding aid used in the carbon black oily system obtained by the invention has the characteristics of simple production process and good dispersion effect.

Description

technical field [0001] The invention relates to a polymer grinding aid and a preparation method thereof, in particular to a nonionic polymer grinding aid and a preparation method thereof. Background technique [0002] Grinding aids (grinding aids) are the general term for chemicals added to the mill system during the grinding process of materials. Its function is mainly to improve the grinding efficiency, accelerate the crushing speed of material particles, and change the rheological characteristics of the material slurry due to the dispersion of the agent, and some can also inhibit the corrosion of steel balls and liners, and finally achieve The purpose of reducing energy consumption, steel ball consumption and selective grinding. During the material crushing process, the material is usually subjected to different types of stress, causing the material to form cracks and expand, and then be crushed. According to Griffey's law, reducing the surface energy of a particle redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/181B02C23/06
Inventor 张宝华李红达索惠惠沈萍萍谈惠洁
Owner 上海拓径新材料科技股份有限公司