Preparation method of heavy calcium carbonate for high-activation-degree silicone adhesive

A heavy calcium carbonate, activation degree technology, applied in chemical instruments and methods, adhesives, dyeing organosilicon compound treatment, etc., can solve the problems of single-component modifier with single effect, poor modification effect and high preparation cost, To achieve the effect of simple and easy preparation method, low oil absorption value and low specific gravity

Active Publication Date: 2021-07-09
广西贺州市科隆粉体有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the inorganic characteristics of calcium carbonate powder, its compatibility with silicone oil is poor, and it needs to be modified. However, the existing composite surface modifiers have problems such as complex components and high preparation costs. Problems such as single effect and poor modification effect

Method used

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  • Preparation method of heavy calcium carbonate for high-activation-degree silicone adhesive
  • Preparation method of heavy calcium carbonate for high-activation-degree silicone adhesive

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A method for preparing heavy calcium carbonate for high-activation silicone rubber, which sequentially includes ore storage, cleaning, mineral processing, crushing and homogenization, grinding, grading, powder collection, quality inspection I, activation, cooling, and quality inspection II steps ;

[0033] The described ore storage steps are: storing the ore raw materials separately according to ore types and grades;

[0034] The cleaning steps are: cleaning the mud stuck on the surface of the ore with water;

[0035]The ore dressing step is: selecting the unqualified ore entrained in the ore; the unqualified ore is the ore with low whiteness, skin and other impurities;

[0036] The crushing and homogenizing step is as follows: crush the qualified ore into 18mm ore, and then send it into a 10,000-ton level homogenizing tank for homogenizing;

[0037] The grinding step is: sending the mineral material into the grinding equipment for grinding;

[0038] The grading step...

Embodiment 2

[0045] A preparation method of heavy calcium carbonate for high-activation silicone rubber, which sequentially includes ore storage, cleaning, beneficiation, crushing and homogenization, grinding, grading, powder collection, quality inspection I, activation, cooling, and quality inspection II steps ;

[0046] The described ore storage steps are: storing the ore raw materials separately according to ore types and grades;

[0047] The cleaning steps are: cleaning the mud stuck on the surface of the ore with water;

[0048] The ore dressing step is: selecting the unqualified ore entrained in the ore; the unqualified ore is the ore with low whiteness, skin and other impurities;

[0049] The crushing and homogenizing step is as follows: crushing the qualified ore into 15mm ore, and then sending it into a 10,000-ton level homogenizing tank for homogenizing;

[0050] The grinding step is: sending the mineral material into the grinding equipment for grinding;

[0051] The grading s...

Embodiment 3

[0058] A preparation method of heavy calcium carbonate for high-activation silicone rubber, which sequentially includes ore storage, cleaning, beneficiation, crushing and homogenization, grinding, grading, powder collection, quality inspection I, activation, cooling, and quality inspection II steps ;

[0059] The described ore storage steps are: storing the ore raw materials separately according to ore types and grades;

[0060] The cleaning steps are: cleaning the mud stuck on the surface of the ore with water;

[0061] The ore dressing step is: selecting the unqualified ore entrained in the ore; the unqualified ore is the ore with low whiteness, skin and other impurities;

[0062] The crushing and homogenizing step is as follows: crush the qualified ore into a 10mm mineral material, and then send it into a 10,000-ton level homogenizing tank for homogenizing;

[0063] The grinding step is: sending the mineral material into the grinding equipment for grinding;

[0064] The ...

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Abstract

The invention discloses a preparation method of heavy calcium carbonate for a high-activation-degree silicone adhesive. The preparation method sequentially comprises the steps of ore storage, cleaning, mineral separation, crushing and homogenizing, grinding, grading, powder collection, quality inspection I, activation, cooling and quality inspection II. The preparation method disclosed by the invention is simple and easy to implement, the prepared calcium carbonate powder has good dispersity, extremely high activation degree, relatively high whiteness and extremely low oil absorption value, and the thixotropy and tensile strength of a silicone adhesive can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of calcium carbonate preparation, and in particular relates to a preparation method of heavy calcium carbonate for high activation degree silicone glue. Background technique [0002] Calcium carbonate is an inorganic powder with many hydroxyl groups on the surface, which is easy to absorb water and exhibits hydrophilic and oleophobic properties. It is difficult to disperse evenly in organic media, so it cannot cross-link with polymer materials such as rubber and plastic. Poorly dispersed calcium carbonate not only seriously affects the appearance of the product, but the large aggregates are also easy to form internal defects in the material, which cannot achieve the ideal reinforcement effect on polymer materials. In order to solve the above problems, it is necessary to modify the surface of the calcium carbonate powder. The surface properties of the calcium carbonate powder can be changed through surface tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/04C09C3/12C09C3/08C09J183/04C09J11/04
CPCC09C1/021C09C3/003C09C3/045C09C3/041C09C3/12C09C3/08C09C3/006C09J183/04C09J11/04C08K2003/265C01P2006/22C01P2006/65C01P2006/19C08K9/04C08K9/06C08K3/26
Inventor 贝进国童张法李奇洪黄华彬叶有谢云莫及刘慧芝陈小鹏覃玲意钟玲萍
Owner 广西贺州市科隆粉体有限公司
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