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Optical stabilizer is a kind of ultraviolet absorber

2019-08-28

Light stabilizer HPT




It is divided into hexamethylphosphotriamine




The product is colorless or light yellow transparent liquid. Slightly tinged with astringency. Density 1.0253 ~ 1.0257g/cm3 (20℃). Freezing point 27℃, boiling point 116 ~ 117℃ (1.48kPa). Refractive index 1.4582 ~ 1.4589 (20℃). It is soluble in polar and non-polar solvents, and can be mutually soluble in any proportion with common plasticizers such as dioctyl phthalate, dioctyl sebacate and triphenyl phosphite.




The product can be used as PVC light stabilizer. Can give products excellent outdoor anti - aging performance, so it is known as the high - efficiency PVC weather agent. Adding 2 ~ 5 parts of this product into polyvinyl chloride film can not only significantly improve its weather resistance and cold resistance, but also reduce the processing temperature of about 10℃, in addition, this product can also be used as polyamide, polyurethane, urea-formaldehyde resin, polyphenylene sulfide and other polymer materials excellent solvent.




This product is non-toxic, should not be used in contact with food products, and should avoid contact with the skin.




I. Main USES:




It can effectively absorb ultraviolet light with a wavelength of 270-380 nanometers, mainly used in polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethacrylate, polyethylene, ABS resin, epoxy resin and cellulose resin. Suitable for photosensitive materials such as color film, color film, color paper and polymer and many other fields; Especially suitable for colorless, transparent and light-colored products; For strong absorption, high performance uv absorbent.




Ii. Outstanding Features:




Super ultraviolet absorption capacity; Effectively prevent uv damage to the skin and carcinogenicity, greatly improve the anti-aging performance of the product. It absorbs little visible light and is a colorless, transparent and light-colored product. Non-flammable, non-corrosive, good storage stability; It has good compatibility with a variety of high polymers, and has long-acting antioxidant and anti-yellowing properties. It can be used with general antioxidant. Extremely high security.




Iii. Physical and chemical indexes:




Appearance: Pale yellow powder melting point: 138℃-141℃ Ash: ≤0.05% Volatilization: ≤0.1% transmittance: 460nm≥95%; 500 nm≥97% solubility: soluble in benzene, toluene, ethylene and other solvents, slightly soluble in ethyl acetate, petroleum ether, insoluble in water




Iv. Usage:




The general dosage is 0.1-0.5% in thin products and 0.05-0.2% in thick products. Addition amount under other process conditions: 0.05-0.3%.


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