Recently, with the frequent occurrence of extreme weather around the world, many places in my country have encountered the dual test of continuous high temperature and heavy rainfall. Silicone materials, with their excellent weather resistance and protection performance, have shown their prowess in new energy vehicles, electronic equipment, construction infrastructure and other fields, becoming the "invisible guard" of safety protection this summer.
In the field of new energy vehicles, BYD, CATL and other companies have taken the lead in adopting composite coating technology containing polysilazane. This material forms a ceramic protective layer that is resistant to 800℃ high temperature on the surface of the battery pack, effectively blocking the spread of thermal runaway, and cooperates with silicone rubber seals to resist the invasion of moisture in the rainy season, so that the safety performance of power batteries is improved by 40%. The electronic consumer products market has also ushered in an upgrade. Huawei, Xiaomi and other flagship models are equipped with new silicone oil heat dissipation films, and the thermal conductivity is 3 times higher than that of traditional materials, successfully solving the problem of overheating of 5G mobile phones in high temperature environments.
In terms of urban infrastructure protection, silicone resin waterproof coatings are replacing traditional asphalt and are used in subway tunnels, cross-sea bridges and other projects. Its unique "breathable" coating can not only block rainwater penetration, but also release moisture inside the concrete. After Beijing Metro Line 17 adopted this technology, the leakage rate dropped by 90%. The power system relies on silicone rubber composite insulators to achieve a 65% year-on-year decrease in the failure rate of power transmission lines in the southern rainstorm area.
According to the latest report of SAGSI, the market size of organic silicon protective materials in my country is expected to exceed 30 billion yuan in 2023, with an annual growth rate of 18%. Experts from the Chinese Academy of Sciences pointed out: "The molecular designability of organic silicon materials enables them to accurately match the protection needs of different scenarios, which is difficult for traditional materials to achieve." As the process of carbon neutrality accelerates, this type of new material with both safety and environmental protection characteristics is reshaping the safety boundaries of modern life.
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