UV and Radiation Resistance: A “Protective Vanguard” in Harsh Environments-Iota

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News > Dynamic industry > UV and Radiation Resistance: A “Protective Vanguard” in Harsh Environments

UV and Radiation Resistance: A “Protective Vanguard” in Harsh Environments

Did you know? When exposed to prolonged sunlight or radiation, many materials gradually degrade and fail. Phenyl silicone materials, however, excel at resisting photo-aging and radiation damage, making them a trusted “protective vanguard” in challenging environments.

Let’s start with UV resistance. Plastics and rubbers exposed to sunlight often suffer chain scission from UV rays, leading to yellowing, embrittlement, and strength loss. For example, outdoor plastic furniture may turn yellow, rough, or cracked after just a few summers. Phenyl groups in phenyl silicone absorb UV energy, reducing internal structural damage and significantly enhancing UV resistance. Even under intense, prolonged sun exposure, it resists yellowing and embrittlement, keeping both appearance and performance stable. This makes it highly valued in outdoor construction and photovoltaic (PV) applications. For instance, PV panel sealants must withstand constant sun and weather. If UV resistance is insufficient, the sealant cracks and allows moisture ingress, damaging the module. Phenyl silicone sealants endure strong UV radiation while maintaining adhesion and sealing, ensuring long-term efficiency and extended service life of solar power stations.

Beyond UV resistance, radiation resistance is another strength. In nuclear and aerospace applications, equipment is frequently exposed to high-energy radiation. Conventional materials often degrade, becoming brittle and losing functionality — for example, cable insulation hardens and fails under radiation. Phenyl groups in phenyl silicone react with radiation-induced free radicals, suppressing molecular degradation and preserving structure and function. In nuclear power plant control room cables, phenyl silicone insulation provides reliable long-term performance under radiation, ensuring safe signal transmission. In spacecraft exterior coatings, it shields equipment from cosmic rays. Whether under daily UV exposure or extreme radiation environments, phenyl silicone provides dependable protection to meet stringent demands.

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