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Preparation method of limestone powder for rubber industry

A technology of limestone powder and limestone, which is applied in the field of preparation of limestone powder for the rubber industry, can solve the problems of poor compatibility between limestone powder and high molecular organic matter, limestone cannot be used as a rubber additive, and limestone is easy to be affected by moisture, etc., so as to shorten the mixing time , avoid moisture condensation, improve the effect of surface energy

Active Publication Date: 2017-12-15
张家界荣丰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the application of limestone in the rubber industry, there are several defects as follows: (1) Limestone is susceptible to moisture during storage, and the damp limestone will not be used as a rubber additive; (2) Limestone powder is compatible with high molecular weight organic matter Poor performance, in the process of mixing, it takes a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of limestone powder for rubber industry, comprising the following steps:

[0017] (1) After grinding the lumpy limestone to 140 mesh, add modifying solution to it, mix and stir evenly, and continue to grind to 200 mesh, wherein the modifying solution is made of the following components by weight: 4-trimethyl 1-22 parts of silylstyrene, 10 parts of methyl p-bromophenylacetate, 2 parts of 3-bromopropylamine hydrobromide, 120 parts of water, 60 parts of ethanol;

[0018] (2) Add additives to the limestone powder treated in step (1), mix and stir again to obtain a finished product, wherein the additives are made of the following components by weight: 11 parts of ammonium pentaborate, 6-nitro 2 parts of benzimidazole nitrate, 9 parts of kojic acid palmitate, 3 parts of potassium xanthate.

[0019] Specifically, the above-mentioned modified solution is prepared by the following method: add 4-trimethylsilylstyrene and methyl p-bromophenylacetate to ethano...

Embodiment 2

[0024] A preparation method of limestone powder for rubber industry, comprising the following steps:

[0025] (1) After grinding the massive limestone to 150 mesh, add a modifying solution to it, mix and stir evenly, and continue to grind to 230 mesh, wherein the modifying solution is made of the following components by weight: 4-trimethyl 20 parts of silylstyrene, 13 parts of methyl p-bromophenylacetate, 3 parts of 3-bromopropylamine hydrobromide, 130 parts of water, 70 parts of ethanol;

[0026] (2) Add additives to the limestone powder treated in step (1), and mix and stir again to obtain a finished product, wherein the additives are made of the following components by weight: 14 parts of ammonium pentaborate, 6-nitro 3 parts of benzimidazole nitrate, 11 parts of kojic acid palmitate, 4 parts of potassium xanthate.

[0027] Specifically, the above-mentioned modified solution is prepared by the following method: add 4-trimethylsilylstyrene and methyl p-bromophenylacetate to...

Embodiment 3

[0032] A preparation method of limestone powder for rubber industry, comprising the following steps:

[0033] (1) After grinding the massive limestone to 160 mesh, add modifying liquid to it, mix and stir evenly, and continue to grind to 250 mesh, wherein the modifying liquid is made of the following components by weight: 4-trimethyl 22 parts of silylstyrene, 15 parts of methyl p-bromophenylacetate, 5 parts of 3-bromopropylamine hydrobromide, 150 parts of water, 80 parts of ethanol;

[0034] (2) Add additives to the limestone powder treated in step (1), and mix and stir again to obtain a finished product, wherein the additives are made of the following components by weight: 17 parts of ammonium pentaborate, 6-nitro 5 parts of benzimidazole nitrate, 12 parts of kojic acid palmitate, 5 parts of potassium xanthate.

[0035] Specifically, the above-mentioned modified solution is prepared by the following method: add 4-trimethylsilylstyrene and methyl p-bromophenylacetate to ethan...

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Abstract

The invention discloses a preparation method of limestone powder for the rubber industry. The preparation method comprises the following operation steps: (1) grinding blocky limestone to 140-160 meshes, adding a modifying liquid into the limestone, evenly mixing and stirring, continuing to grind to 200-250 meshes; (2) adding an additive into the limestone powder processed in the step (1), then mixing and stirring evenly to prepare a finished product. The preparation method of the limestone powder for the rubber industry is simple in operation, the dust content is low in the preparation process, the prepared limestone powder is even in grain size, is white, can be stored for a long time, can be mixed with an organic polymer easily, and greatly improves the performances of the limestone powder.

Description

technical field [0001] The invention belongs to the technical field of limestone powder preparation, and in particular relates to a preparation method of limestone powder for rubber industry. Background technique [0002] Lime powder is a white powdery substance with calcium carbonate as the main component. It has a wide range of applications, and the most common one is used in the construction industry, that is, industrial calcium carbonate. However, as the use of calcium carbonate has been continuously recognized and recognized, at present, calcium carbonate has been widely used in industry, agriculture, construction, manufacturing and food industry. Among them, high-quality calcium carbonate has also been fully developed and utilized in the rubber industry. Calcium carbonate is filled in rubber, which can increase the volume of its products and save expensive natural rubber, thereby greatly reducing costs and obtaining a higher rate than pure rubber. Sulfide for higher t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K9/06C08K3/26C08L21/00
CPCC08K3/26C08K9/04C08K9/06C08K2003/265C08K2201/003C08L21/00
Inventor 夏保峰程业泉夏俊
Owner 张家界荣丰新材料有限公司