The so-called photochemical reaction is mainly due to ultraviolet rays, which can directly cause the molecular chain to break. In all light, the shorter the wavelength, the greater the energy, the more accelerated the aging degree. Because rubber and plastic materials will generate free radicals in the process of absorbing light energy, thus triggering and accelerating some unfavorable chain reactions, the most common is the oxidation of the table mould.
The table mould is easy to change the temperature of the table mould itself due to frequent illumination after being placed outside. It can be seen that the internal temperature of the mould rises after the mould should absorb heat, thus degrading the mould. For the table mould that uses PP polypropylene... less