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Sunlight together with heat and oxygen induces reactions of degradation in plastics, causing detrimental effects on their mechanical, optical and physical properties. The result is breakage, chalking and discoloration. Outdoor weathering results in degradation by exposure to the ultraviolet part of sunlight which reaches the earth’s surface, at wavelengths between 300 and 400 nanometres. Environmental factors like temperature, humidity, oxygen, polluting gasses also play an important role.

According to a study, about 80% of infection diseases start from surface contact. Bacteria and fungi are everywhere in our daily life, the microbe can quickly reproduce with suitable conditions. It may cause contamination, odors and infectious diseases. Anti-Microbial, Anti-Fungal additives will be integrated into the polymer during the manufacturing process to inhibit the growth and provide protection from microbes.

Sunlight together with heat and oxygen induces reactions of degradation in plastics, causing detrimental effects on their mechanical, optical and physical properties. The result is breakage, chalking and discoloration. Outdoor weathering results in degradation by exposure to the ultraviolet part of sunlight which reaches the earth’s surface, at wavelengths between 300 and 400 nanometres. Environmental factors like temperature, humidity, oxygen, polluting gasses also play an important role.

Most polymers go through oxidative degradation processes during manufacturing and subsequent compounding and processing. Oxidation and heat aging are major causes of degradation of plastics. Exposure to heat and oxygen causes a chain reaction involving the formation of free-radicals, which inevitably leads to cleavage of the main chains in the polymer and degradation of the plastic. This is manifested in many difference ways including loss of shine and transparency, yellowing, surface cracking and odors. Oxidation can also result in loss of mechanical properties such as impact resistance, elongation and tensile strength.