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Modified calcium carbonate having adsorption effect and preparation method thereof

A calcium carbonate, modified technology, used in chemical instruments and methods, other chemical processes, dyeing polymer organic compounds and other directions, can solve defects, cracking, deformation and other problems, to increase the adsorption effect, the effect of good binding force

Active Publication Date: 2014-10-08
贺州钟山县双文碳酸钙新材料有限公司
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Problems solved by technology

However, the addition of dispersants and surface modifiers greatly reduces the temperature window of nano-calcium carbonate, because commonly used dispersants and coupling agents are easy to decompose at high temperatures, causing bubbles, cracks, defects, deformation, etc., thus Affect the appearance, heat resistance and mechanical properties of materials

Method used

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  • Modified calcium carbonate having adsorption effect and preparation method thereof

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Embodiment Construction

[0012] specific implementation plan

[0013] The present invention will be described in detail below through specific examples.

[0014] A modified calcium carbonate with adsorption effect, prepared from the following raw materials in parts by weight (kg): calcium carbonate 90, zeolite molecular sieve 2, wood fiber 2, crushed pine bark 3, azodicarbonamide 2, zircon powder 3, vermiculite powder 2, zinc octadecanoate 1, dibutyl phthalate 4, smoked sheet glue 4, polyvinyl chloride powder 5, modified titanium dioxide 3;

[0015] The modified titanium dioxide is made of the following raw materials in parts by weight (kg): nano-titanium dioxide 50, magnesium hydroxide 2, ethyl cellulose 4, n-butyl acrylate 5, quartz powder 3, polyisobutylene 3, alkyd resin 3 , terpineol 2, water 50; the preparation method is to first add n-butyl acrylate, nano-titanium dioxide, magnesium hydroxide, ethyl cellulose, and water to stir evenly to form a suspension, and dry it at 45-50°C until the water...

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Abstract

The invention discloses modified calcium carbonate having an adsorption effect and a preparation method thereof. The modified calcium carbonate is characterized by being prepared from following raw materials comprising, by weight, 90-95 parts of calcium carbonate, 2-3 parts of zeolite molecular sieve, 2-4 parts of wood fiber, 3-4 parts of crushed pine barks, 2-3 parts of azodicarbonamide, 3-4 parts of zircon powder, 2-4 parts of vermiculite powder, 1-1.5 parts of zinc stearate, 4-6 parts of dibutyl phthalate, 4-5 parts of smoked sheet, 5-7 parts of polyvinyl chloride powder and 3-4 parts of modified titanium dioxide. With addition of various natural substances having adsorption functions, such as zeolite molecular sieve, crushed pine barks and vermiculite powder and the like, and addition of foamable components, such as azodicarbonamide, zinc stearate and the like, a surface of the calcium carbonate has porosity and the adsorption effect of the calcium carbonate is enhanced. In addition, the surface of the calcium carbonate is modified by high-molecular polymer so that the modified calcium carbonate has a high-molecular polymer layer and is good in binding force. The modified calcium carbonate is suitable for being used as an additive in environment-protective coating, pigment and building materials.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a modified calcium carbonate with adsorption effect and a preparation method thereof. Background technique [0002] Calcium carbonate is a very important functional inorganic filler, which is widely used in industrial fields such as plastics, rubber, coatings and papermaking. In the application field of calcium carbonate, most products belong to the category of polymers, such as plastics, rubber, adhesives, coatings, etc., and occupy an important market share. Modifiers play an important role in the performance and application of nano calcium carbonate. For example, the addition of dispersant can reduce the agglomeration of nanoparticles and improve the dispersion; the addition of surface modifier can improve the compatibility of nano-calcium carbonate in the polymer system. It can be seen that dispersants and surface modifiers are crucial for the application of nano-calcium c...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C09C1/02C09C3/08C09C3/10C09C3/06C09C3/04
Inventor 朱蕊许小林
Owner 贺州钟山县双文碳酸钙新材料有限公司
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