High-density modified calcium carbonate and preparation method thereof

A calcium carbonate, high-density technology, applied in chemical instruments and methods, dyed polymer organic compound treatment, inorganic pigment treatment, etc. Small, cracking and other problems, to achieve the effect of promoting use, good fluidity, and increasing dispersibility

Active Publication Date: 2014-09-10
宁远华创粉体材料有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

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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  • High-density 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 high-density modified calcium carbonate, prepared from the following raw materials in parts by weight (kg): heavy calcium carbonate 85, china clay 2, talcum powder 2, cationic starch 2, urea-formaldehyde resin 4, high-density polyethylene 5, ring Oxybutyl oleate 3, stearic acid 2, sodium oleate 1, polypropylene staple fiber 2, clam shell powder 2, waste rubber powder 3, modified titanium dioxide 3;

[0015] The modified titanium dioxide is made of the following raw materials in parts by weight (kg): aluminum hydroxide 2, nano titanium dioxide 50, silicon carbide 4, methyl methacrylate 5, antimony trioxide 3, terephthalic acid 3, horse Dioctyl maleate 3, ethylene glycol 5, water 50; the preparation method is to first add methyl methacrylate, nano-titanium dioxide, aluminum hydroxide, ethylene glycol, and water and stir evenly to form a susp...

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Abstract

The invention discloses a high-density modified calcium carbonate which is characterized by being prepared from the following raw materials in parts by weight: 85-90 parts of heavy calcium carbonate, 2-4 parts of porcelain clay, 2-3 parts of talcum powder, 2-3 parts of cationic starch, 4-6 parts of urea-formaldehyde resin, 5-7 parts of high-density polyethylene, 3-5 parts of epoxy butyl oleate, 2-3 parts of stearic acid, 1-2 parts of sodium oleate, 2-3 parts of polypropylene staple fibers, 2-2.5 parts of clam shell powder, 3-4 parts of waste rubber powder and 3-4 parts of modified titanium dioxide. The high-density modified calcium carbonate disclosed by the invention is reasonable in formula and simple in production process, enhances the dispersibility by being added with the modified titanium dioxide, is good in product flowability and difficult to adhere, enhances the density and strength of fillers by adopting organic and inorganic matched coating, is good in generated binding force, can not reduce the original mechanical property of a product by being used in large quantities and is low in cost and favorable to popularize and use.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a high-density modified calcium carbonate and a preparation method thereof. Background technique [0002] Calcium carbonate is a very important functional inorganic filler. The product has a wide range of uses, and is mainly used in the processing industries such as rubber, plastic, paper, insulation, ink, asphalt and the production of daily chemical products. 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. However, the addition of dispersants and surface modifiers greatly reduces the temperature w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/06C09C3/10C09C3/08C09C1/36
Inventor 王俊华朱传路
Owner 宁远华创粉体材料有限公司
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