Talc powder significantly improves the rigidity and creep resistance of plastic products

Talc with lubricity, sticky, flow resistance, fire resistance, acid resistance, insulation, high melting point, chemical inertness, good covering power and soft, good luster, strong adsorption force and other excellent physical and chemical properties.

Talc, known as PULVISTALCI in English, is a white or whitish, fine, non-abrasive powder with greasy hands. No smell, no smell. This product is insoluble in water, dilute mineral acid or dilute hydroxide solution. Main ingredients: calcite, is a compound, neutral, basically insoluble in water, soluble in hydrochloric acid.

Among many types of inorganic powders, talc powder is a special one, which is particularly reflected in its diversity and complexity. Talc powder has the characteristics of stability, low hardness, laminar structure, oil - loving and water-repellent. The characteristics of talc itself determine that it is a rare functional filler.

Characteristics of talc powder from haicheng talc factory

In many applications, talc can not only play the role of general fillers to reduce the cost of products, but also can significantly enhance the performance of these products. As a filler, talc is widely used in papermaking, plastic, paint, ceramics, cosmetics, medicine, rubber, agricultural products, fertilizer and other industries.

Characteristics of talc filled modified plastics

The addition of talc powder can change a variety of properties of plastics, such as molding shrinkage ratio, surface hardness, bending modulus, tensile strength, impact strength and thermal deformation temperature, molding process and the product dimension stability, etc.

The addition of ultrafine talc powder to plastic can significantly improve the rigidity and creep resistance, hardness and surface scratch resistance, heat resistance and thermal deformation temperature of plastic products.

Quite a fineness of talcum powder is added to the plastic, also can improve the impact strength of plastic products, and add after also has the lubricating effect, can flow to promote role, improving the plastic processing craft, it also has a remarkable characteristic, is to have the function of the nucleating agent.

Effects of talc powder on properties of automotive polypropylene modifiers:

Effect of talc powder on the tensile and bending properties of polypropylene modifier used in automobile lampshade. With the increase of talc content, when the content reaches about 30%, when the tensile strength reaches the peak, the tensile strength of the modified material decreases.

This is mainly because, with the addition of talc powder, talc powder is filled into the interstitial space of the polymer, preventing the interaction between the polymer molecules, which leads to the decrease of the tensile strength of the filler material. However, if talc powder is treated on the surface and mixed uniformly, the effect on the tensile strength of the modified material will be less, and the fineness of talc powder will also be beneficial to the tensile strength of the modified material.

The influence of talc dosage on the tensile and bending properties of the modified material can be seen that the bending modulus of the modified material increases with the increase of talc dosage. This indicates that talc powder is a good reinforcing agent of polypropylene and can greatly improve the rigidity of products.

Talcum powder