Relying on the synergistic advantages of the organic-inorganic hybrid structure, polymethylsilsesquioxane (PMSQ) has been deeply penetrated into many strategic fields such as high-end coatings, electronics and electrical engineering, aerospace, and daily chemical beauty, relying on core properties such as high-temperature resistance, high hardness, low dielectric constant and strong weather resistance. As a functional modifier, film-forming agent, packaging material, etc., its application value is not only reflected in improving the comprehensive performance of downstream products, but also in breaking the performance bottleneck of traditional materials, promoting the transformation of related industries towards high-end, precision and functionalization, and becoming an important functional material supporting the high-quality development of high-end manufacturing.
The high-end coating field is the core application scenario of PMSQ, accounting for more than 42%. In industrial anti-corrosion coatings, PMSQ is used as a modifier to improve the high-temperature resistance, weather resistance and corrosion resistance of the coating, adapting to harsh corrosion environments such as high-temperature equipment and marine engineering, and extending the service life of the coating to more than 15 years; in automotive coatings, it can improve the hardness, scratch resistance and stain resistance of the coating, keeping the automotive paint surface shiny for a long time, adapting to the needs of high-end automotive original paint and refinish paint; in wood lacquers and architectural coatings, PMSQ can improve the UV resistance of the coating, avoid coating cracking and chalking, and enhance the durability and decorativeness of the coating. In addition, in special coatings, its low dielectric properties can be used to prepare special anti-corrosion and insulating coatings for electronic equipment.
In the electronics and electrical field, the high-end application value of PMSQ is prominent, and it is the core raw material for electronic packaging and insulating materials. In semiconductor packaging, high-purity PMSQ can be used to prepare low-dielectric constant packaging materials, adapting to the insulation needs of high-end electronic devices such as 5G and chips, reducing signal interference, and improving the operating speed and stability of the devices; in printed circuit boards (PCBs), it can be used as a solder resist and insulating coating, improving the high-temperature resistance, wear resistance and insulation performance of the circuit board, ensuring the stable operation of the circuit board in complex environments; in electronic components, PMSQ-based coatings can be used for moisture-proof and anti-corrosion protection, extending the service life of components, adapting to harsh scenarios such as aerospace electronics and industrial control. In 2024, the consumption of PMSQ in the electronic field reached 48,000 tons, a year-on-year increase of 20.3%, with a significant demand growth rate.
In the aerospace and daily chemical beauty fields, the application scenarios of PMSQ continue to expand. In the aerospace field, PMSQ is used to prepare high-temperature resistant coatings and composite materials, adapting to the protection of high-temperature components such as aero-engine and satellite parts. Its high-temperature resistance and lightweight characteristics can reduce the weight of equipment and improve equipment reliability; in the daily chemical beauty field, nano-scale PMSQ can be used as a functional component in skin care products and cosmetics, with good oil control, concealing and anti-sweat properties, and can form a breathable protective film to improve the user experience of products, which is widely used in foundations, loose powders, sunscreens and other products. In addition, in the field of plastic modification, PMSQ can improve the high-temperature resistance, weather resistance and hardness of plastics, and is used for engineering plastic modification to expand the application boundary of plastics.