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Modified calcium carbonate with enhanced wear resistance and preparing method thereof

A technology of calcium carbonate and wear resistance, applied in the field of modified calcium carbonate and its preparation, can solve problems such as defects, nanometer calcium carbonate temperature window becomes smaller, cracking, etc., achieve strong binding force, increase dispersion performance and compatibility Performance, the effect of reducing external friction

Active Publication Date: 2014-10-08
浙江环星纳米科技有限公司
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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 with enhanced wear resistance and preparing method thereof

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Embodiment Construction

[0013] specific implementation plan

[0014] The present invention will be described in detail below through specific examples.

[0015] A modified calcium carbonate with enhanced wear resistance is prepared from the following raw materials in parts by weight (kg): calcium carbonate 85, quartz powder 2, epoxy resin 5, glycerol triacetate 4, nylon 666, molybdenum disulfide 3. Copper oxide 2, crushed nut shell 2, high wear-resistant carbon black 1, brown corundum 2, turpentine 4, liquid paraffin 2, modified titanium dioxide 3;

[0016] 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 suspension. D...

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Abstract

A modified calcium carbonate with enhanced wear resistance is disclosed. The modified calcium carbonate is characterized in that: the modified calcium carbonate is prepared from raw materials 85-90 parts by weight of calcium carbonate, 2-3 parts by weight of quartz powder, 5-7 parts by weight of epoxy resin, 4-6 parts by weight of glycerol triacetate, 6-8 parts by weight of nylon 66, 3-4 parts by weight of molybdenum disulfide, 2-3 parts by weight of copper oxide, 2-3 parts by weight of smashed nut shell, 1-1.5 parts by weight of high-wear-resistance carbon black, 2-3 parts by weight of brown aluminium oxide, 4-6 parts by weight of turpentine, 2-4 parts by weight of liquid paraffin and 3-4 parts by weight of modified titanium dioxide; by addition of the high-wear-resistance carbon black, the molybdenum disulfide and other wear-resistant lubricants, a filling material has a self-lubricating property so as to reduce external friction, thus achieving an effect of wear resistance; and by adoption of the modified titanium dioxide, the dispersion property and the compatibility are enhanced, thus generating strong binding force and not reducing the comprehensive properties of products. The modified calcium carbonate is used as additives for plastics, rubber and coating, and the like.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a modified calcium carbonate with enhanced wear resistance 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. [0003] 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 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/06C09C3/10C09C3/08C09C3/00
Inventor 王俊华朱传路
Owner 浙江环星纳米科技有限公司
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