It is understood that UV absorber UV-328 is in the form of light yellow powder, with a melting point of 80~88℃, a flash point of 229℃, a density of 1.17g/cm³, a vapor pressure of 4.7E-6pa, and is soluble in benzene, toluene and styrene. , cyclohexane, methyl methacrylate, ethyl acetate, ketones and other organic solvents. The maximum absorption wavelength is 345nm. It has the characteristics of good compatibility, low volatility, good washing resistance, high absorption efficiency and antioxidant properties.
The uses and functions of ultraviolet absorber UV-328 are as follows:
This product has good absorption of ultraviolet rays, low initial color has little impact on the color of the product, and is easily soluble in Plasticizer and monomer system, low volatile matter and good compatibility with most substrates.
Mainly used in monopolymers or copolymers of styrene, acrylic polymers, and unsaturated polyesters , polyvinyl chloride, polyolefin, polyurethane, polyacetal, polyamide, polyvinyl butyral, elastomers and adhesives, etc.
Has good compatibility with various organic matrices and is used in plastic products and monomers It has strong solubility and low volatility. It can protect polymers and organic pigments from ultraviolet radiation, reduce the aging of outdoor modules, films, boards and fibers, and maintain the appearance and physical properties of products. It also has excellent light stabilizing effect in various coatings.
Can be used alone or mixed with other additives, such as hindered amine light stabilizers, anti- Oxygen agents (hindered phenols, phosphonites, sulfur accelerators, hydroxylamine, lactones) and other functional stabilizers and additives have a very obvious effect when mixed with hindered amine light stabilizers and have obvious synergistic effects.
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