The light protection behaviour of hindered amine light stabilizer Tinuvin-770 is studied by IB, BSR, NMR as well as observation of a mechanical property of Tinuvin-770 containing polypropylene film.

• 本文用IR、ESR、NMR及力学性能的测定研究了受阻胺光稳定剂Tinuvin-770(T-770)对紫外光的防护行为。