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    Home > Coatings News > Paints and Coatings Market > The application and difference of talcum powder and calcium carbonate

    The application and difference of talcum powder and calcium carbonate

    • Last Update: 2020-02-21
    • Source: Internet
    • Author: User
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    1, talcum powder and calcium carbonate are used to do filling, its main purpose is: 1, increase dimensional stability (i.eshrinkage reduction), 2, increase the stiffness of the material, 3, increase the material heat resistance, 4, reduce the cost of materials and other aspects, but also has its defects: 1, density increase, 2, poor use, impact toughness decline, 3, material gloss decreased2, talcum powder and calcium carbonate have the same particle size distinction, generally 300 eyes, 600 eyes, 800 eyes, 1250 and 2500, of course, there are more fine, and generally used in plastic inside can choose 800 and 1250 eyes of these two, so that the performance / price ratio of the highest3, the price of talcum powder has fluctuated, generally speaking, according to the number of items to set the price will not be too big a problem, for example: 800 eyes general price is also between 700 to 850 yuan, 1250 eyes also between 1000 to 1280 yuanIt is not normal for the price to be too high or too lowuse the difference between talcum powder and calcium carbonate:1, talcum powder shape is flaky, so it has a higher stiffness, dimensional stability and heat resistance temperature, enhance the effect is good2, calcium carbonate is generally grainy, so its stiffness and other aspects are not as talcum powder, but its price is cheaper, and high whiteness, at the same time the impact on plastic impact toughness is small3, talcum powder has a nuclear effect on polypropylene, and calcium carbonate is not obvious in this respect4, calcium carbonate can generally be divided into light calcium carbonate and heavy calcium carbonate, and talcum powder does not have this distinction, talcum powder is from natural minerals grinding out
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