Tinuvin 770DF 



 Tinuvin 770DF is a hindered amine light stabilizer, and its efficacy compared with UV light stabilizer and superior nickel-containing stabilizer, especially for the needs of a good light stability of plastics such as polypropylene, high density polyethylene hydrocarbons, EPDM, PS, HIPS, ABS, SAN, ASA, and polyurethane. Tinuvin 770DF for polyamides (polyamides) and polyacetal (polyacetals) are very effective. 

 In contrast with the UV absorber, Tinuvin 770DF effect from the thickness of plastic, it is particularly suitable for flat belt and film purposes. Tinuvin 770DF on thick pieces of plastic also provides very high light stability. 

 With the general method to Tinuvin 770DF added polymer. Tinuvin 770DF good thermal stability, and because they do not absorb the visible spectrum, so it will not affect the color of the polymer. Together with UV absorbers Tinuvin 770DF series, such as Tinuvin P, Tinuvin 327, Chimassorb 81, etc. used in conjunction to create synergy for the plastic to provide good light stability. 

 If you want to achieve the maximum effect of Tinuvin 770 DF, need to be fully stable plastic, to prevent the thermal oxidative degradation of the plastic caused damage. Sulfur-containing stabilizer such as Thiobis propionate, sulfur Tinuvin 770DF phenolic antioxidants affect the results. If manufactures need high light stability of pigment is also important, it is recommended for small scale. 


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