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How much do you know about talcum powder?
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Talc powder is an industrial product, which is a magnesium silicate salt mineral talc, the main component is aqueous magnesium silicate, which is crushed, treated with hydrochloric acid, washed with water, and dried.
Uses: Used in rubber, plastics, paint and other chemical industries as a strengthening and modifying filler.
Features: increase the stability of the product shape, increase the tensile strength, shear strength, flexural strength, compression strength, reduce deformation, elongation, thermal expansion coefficient, high whiteness, uniform particle size and strong dispersion.
Talcum powder has good suspension and easy dispersibility, and low corrosion, in the coating, talc powder can play a role as a skeleton as a filler, reduce the manufacturing cost and improve the hardness of the paint film of the coating. It also has the characteristics of improving the stability of the product shape, increasing the tensile strength, shear strength, pressure strength, reducing deformation, elongation, thermal expansion coefficient, high whiteness, uniform particle size and strong dispersion. The talcum powder with flake particle structure can make the coating film have high water resistance and enamel impermeability, and the talcum powder with fibrous particle structure can improve the rheology and leveling of the coating, and can improve the weather resistance of the coating.
Talcum powder is mainly used in primers and intermediate coatings, and talc powder is preferred for many products and flash baking primers and paints for transportation vehicles. Primers for steel structures can be used in whole or in part with talcum powder to improve the sedimentation of the coating, the mechanical force of the coating film and the recoatability.
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Talc powder is an industrial product, which is a magnesium silicate salt mineral talc, the main component is aqueous magnesium silicate, which is crushed, treated with hydrochloric acid, washed and dried. It is commonly used as filler for plastic and paper products, rubber filler and anti-adhesion agent for rubber products, high-grade paint coating, etc. <
Talc powder is an industrial product, which is a magnesium silicate salt mineral talc, the main component is aqueous magnesium silicate, which is crushed, treated with hydrochloric acid, washed and dried. It is commonly used as filler for plastic and paper products, rubber filler and anti-adhesion agent for rubber products, high-grade paint coating, etc.
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1. Talcum powder is mainly magnesium silica silver salt mineral talc, which is washed and dried with hydrochloric acid treatment after crushing; It is a white or off-white fine, non-sandy powder that has a greasy feeling when touched by hand.
2 Because the form of talc is very similar to gypsum ash, many people will confuse the two, in fact, this is not a thing, talc is ** in the silicate mineral talc block, and gypsum ash is ** in the natural rock with calcium carbonate as the main component, so the two are essentially different.
3. Talc powder is an inorganic compound composed of magnesium oxide and silicon oxide in a combined form, containing trace amounts of asbestos, that is, magnesium silicate, because talc is one of the minerals, it is buried in the ground together with serpentine containing asbestos, so it often contains asbestos components in its natural form.
4. Talcum powder can be added to talcum powder, but because asbestos has carcinogenic effects, the addition of talcum powder containing asbestos impurities in cosmetics such as talcum powder must be strictly controlled.
At present, there is no particularly clear scientific evidence to prove that talcum powder causes cancer. According to the observation of Europe and the United States, long-term use can cause cancer, such as some talcum powder wraps have this ingredient. Talcum powder itself is harmless to humans, so it is also added to food, medicine and cosmetics to beautify color and improve taste or feel. >>>More
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