Application case of sericite in coatings

Unique UV shielding function improves the weather resistance of the coating and delays powdering and discoloration. In the exterior wall coating system of buildings, different proportions and specifications of sericite powder are added for artificial aging resistance         experiments.

                                                               Reference formula for building exterior wall coatings

                                                Adding different specifications of sericite and testing without adding it

                                                                          Reference formula for waterproof coating

                                                           Adding different specifications of sericite and testing without adding it

Excellent acid and alkali resistance, high temperature resistance, and good electrical insulation greatly improve the anti-corrosion and electrical insulation properties of anti-corrosion coatings. The following is a partial inspection of adding sericite powder to epoxy primer. The inspection results are shown in the table below.

                                     Performance testing table for epoxy primer with different specifications of sericite powder added

Note: Other indicators tested are similar, no detailed explanation was provided. From the above test data, it can be seen that the addition of sericite powder significantly improves the various properties of the coating film.

By utilizing the extinction properties of muscovite, formula costs can be reduced. muscovite has a strong extinction shielding function and can absorb more than 80% of ultraviolet radiation. By making good use of this, it can replace extinction agents, reduce coating formula costs, and improve market competitiveness.

Through multiple experiments, the following curve relationship between gloss and addition amount can be obtained:

Application case of sericite in engineering plastics

The use of sericite with two-dimensional sheet-like structure in engineering plastics can improve the dimensional stability of products and enhance their wear resistance. By adding a certain proportion of sericite powder to the original formula, the adhesive material can be kept unchanged, the strength of the product can be improved, and the reinforcement effect can reach or approach the level of using white carbon black. Sericite has good insulation and solubility in plastics. Adding 50% sericite to polypropylene increases the breakdown voltage from 20 kV/mm to 47.5 kV/mm. As a reinforcing filler for plastic composite materials, improving the performance of plastic products is no less than that of glass fiber and white carbon black, thereby effectively reducing costs. Sericite powder also has excellent acid and alkali resistance, flame retardancy, and corrosion resistance, which can improve the heat resistance of products and reduce shrinkage and warping rates.

Sericite powder can be added to engineering plastics such as PP, PA, PPS, TPE, ABS,etc.; Can produce automotive accessories such as steering wheel, instrument panel, door panel, bumper, seats, etc.; It is also used in the production of plastic parts such as computer casings, washing machine frames, fan blades, ventilation ducts, and machine covers.

                                                                Add sericite powder

                The application of sericite in the rubber industry

The main function of muscovite in rubber products is to improve the strength of the products, and the reinforcement effect can reach or approach the level of using white carbon black. Improve the dimensional stability, stress cracking resistance, toughness, anti-aging, cracking resistance, and wear resistance of the product. Has excellent heat resistance, reduces shrinkage and warping rates; Sericite can also improve the gas resistance and expansion resistance of products.

In addition, utilizing the insulation properties of sericite can improve the electrical performance of rubber products.

Product Features:

1) Has good processing performance and can replace 30-50% of semi reinforced or other particulate carbon black;

2) Adding a certain proportion of sericite powder can maintain the performance of the adhesive while reducing product costs.

                     The application of sericite in cosmetics

The natural ingredients and unique sheet-like thin layer structure of cosmetic grade sericite powder endow it with a smooth texture and good chemical stability. The comfortable texture provides excellent skin affinity and glossiness, while also having the characteristics of soft, smooth, delicate, and strong coverage in cosmetics. It is pure natural, non-toxic, and harmless, making it the preferred high-end powder material in the cosmetics industry. It can be widely used in honey powder, eye shadow, liquid foundation, powder, powder blusher and many other fields.

Product Features:

1) Fine particles, strong dispersibility, able to mix evenly with water and glycerol;

2) Delicate and smooth texture, silky softness, and soft luster;

3) Good adsorption and excellent affinity with the skin, elastic, giving a velvety feeling;

4) Anti UV is a natural inorganic sunscreen agent with better performance than TiO2 and ZnO, which can improve the SPF value of sunscreen products.