7 Major Application Of Ultrafine Talc Powder
The nature of ultrafine talc powder is that it is a natural hydrated magnesium silicate mineral. It is inert to most chemical reagents and does not decompose when in contact with acids. It is a poor conductor of electricity, has low thermal conductivity and high thermal shock resistance. It can be heated when heated. It does not decompose even at high temperatures of 900°C. These excellent properties of talc make it a good filler. Today, we will sort out the application fields of ultrafine talc powder.
Application of talc powder in coating industry
Because talc has excellent physical and chemical properties such as lubricity, anti-adhesion, flow aid, fire resistance, acid resistance, insulation, high melting point, chemical inactivity, good covering power, softness, good gloss, and strong adsorption.
As a filler, the application of talc powder in coatings is mainly reflected in:
1. High whiteness, uniform particle size and strong dispersion;
2. Can serve as a skeleton;
3. Reduce manufacturing costs;
4. Improve the film hardness of the paint;
5. It can increase the stability of product shape;
6. Increase tensile strength, shear strength, bending strength, and pressure strength, and reduce deformation, elongation, and thermal expansion coefficient.
Application of talc powder in plastics industry
◆ Application in polypropylene resin
Talc is commonly used to fill polypropylene. Talc powder has the characteristics of lamellar structure, so talc powder with finer particle size can be used as a reinforcing filler for polypropylene.
◆ Application in polyethylene resin
Talc is natural magnesium silicate. Its unique micro-scale structure has certain water resistance and high chemical inertness, so it has good chemical resistance and sliding properties. Polyethylene filled with it can be used as engineering plastics. It has good chemical resistance and fluidity and can compete with ABS, nylon, and polycarbonate.
◆ Application in ABS resin
ABS resin is an amorphous polymer with excellent molding processability like polystyrene; it has good impact strength, low temperature resistance, high tensile strength and good creep resistance.
Application of talc powder in preparation industry
◆ Used as a dispersant for volatile oils
Talcum powder has a certain adsorption capacity, so it can adsorb volatile oil to the surface of its particles and disperse it evenly, increasing the contact area between volatile oil and liquid medicine, thereby increasing the solubility of volatile oil.
◆ Covered with powder coat layer
In sugar coating, talc powder can be used to coat the powder coating layer. White talc powder that passes through a 100-mesh sieve is suitable.
◆ Used as lubricant
Since talc has a layered structure that easily breaks into scales, it can be used as a lubricant to improve the compression moldability and fluidity of pharmaceutical powders.
◆ Used as filter aid
Talcum powder is not easy to react with drugs and has certain adsorption capacity, so it can be used as a filter aid.
Application of talc powder as pharmaceutical excipients
◆ Used as a disintegrant for hydrophobic drugs
Talcum powder is a hydrophilic substance. When added as an excipient to a drug, it can improve the hydrophilicity of the entire drug, making it easier for water to penetrate into the drug and making it easier to disintegrate.
◆ Used as anti-adhesive agent
Stickiness problem is a common problem in the coating process. It will lead to slow coating speed, longer production cycle, pellet sticking, reduced yield, film damage, affecting drug release and other problems.
◆ Increase the critical relative humidity of drugs
Application of talc powder in paper industry
The addition of talcum powder in the papermaking industry helps to increase filler retention and improve paper transparency, smoothness and printability, and makes the paper more ink absorbent.
Application of Talcum Powder in Cosmetics Industry
Talcum powder is a high-quality filler in the cosmetics industry. Due to its high silicon content, it can block infrared rays and enhance the sun protection and anti-infrared ray properties of cosmetics.
Application of talc powder in ceramic industry
In the ceramic industry, talcum powder plays an important role. The reason for the different colors of ceramics is that talcum powder is added to them. Different proportions and different ingredients can make ceramics display different colors, and at the same time, they can also make ceramics display different colors. After ceramic calcination, the density is uniform, the surface is smooth and the gloss is good.
Application of talc powder in textile industry
Ultra-finely ground talcum powder is often used as filler and bleaching agent in certain textiles, such as waterproof cloth, fireproof cloth, wheat flour bags, rope nylon, etc., which can enhance the density of the fabric and enhance heat and acid and alkali resistance. performance.