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Electrical-conductive modified calcium carbonate and preparation method thereof

A technology of calcium carbonate and electrical conductivity, applied in the field of modified calcium carbonate and its preparation, can solve problems such as defects, cracks, deformation, etc., and achieve good dispersion and compatibility

Inactive Publication Date: 2015-02-04
ANHUI SHENGJIA COLOR PRINTING PACKING
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  • Claims
  • Application Information

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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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  • Electrical-conductive modified calcium carbonate 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 conductive modified calcium carbonate prepared from the following raw materials in parts by weight (kg): 85 calcium carbonate, 2 silicon carbide, 3 aluminum powder, 2 graphite, 2 precipitated white carbon black, 1 copper sulfate, Coarse-porous silica gel 3, nitrocellulose 2, crushed neem 2, ABS resin powder 7, urea-formaldehyde resin 5, nadic acid anhydride 4, 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 ...

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Abstract

The invention discloses electrical-conductive modified calcium carbonate which is characterized by being prepared from following raw materials including, by weight, 85-95 parts of calcium carbonate, 2-3 parts of silicon carbide, 3-5 parts of aluminum powder, 2-3 parts of graphite, 2-4 parts of precipitated white carbon black, 1-2 parts of copper sulfate, 3-4 parts of thick-hole silica gel, 2-4 parts of cellulose nitrate, 2-3 parts of crushed melia azedarach seeds, 7-9 parts of ABS resin powder, 5-7 parts of urea resin, 4-6 parts of Nadic anhydride and 3-4 parts of modified titanium dioxide. In the invention, the calcium carbonate is coated by electrical-conductive substances, such as the aluminum powder, the graphite and the like, and a high-molecular polymer so that the calcium carbonate has an electrical-conductivity and an excellent compatibility. In addition, by means of the crushed melia azedarach seeds and modified titanium dioxide and the like, the modified calcium carbonate is excellent in dissipating property, is good in binding force and is free of reducing performance of products when being employed as a filling material.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a conductive modified calcium carbonate 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 carbonate. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/06C09C3/08C09C3/10
Inventor 王明竹
Owner ANHUI SHENGJIA COLOR PRINTING PACKING
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