Study on Synthesis and Preparation of Polyurethane Film Modified by PVB

doi:10.19491/j.issn.1001-9278.2013.09.008

Abstract

Abstract: A new polyurethane membrane was prepared by a chain extending reaction of PVB and end-closed polyurethane prepolymer. The structure and performance of this membrane were investigated by FTIR, TG, DMA, and mechanical test. The new polyurethane membrane gave rise to good thermal stability. The content of TDI in the membrane was low and thus had a lower toxicity. Binding strength with polyamide fiber was increased to 58.58 N/2. 5 cm.

Key words: polyurethane, polyvinyl butyral, thermal stability, anti deformation capacity

. Study on Synthesis and Preparation of Polyurethane Film Modified by PVB[J]. China Plastics, 2013, 27(09): 32-36 .

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Study on Synthesis and Preparation of Polyurethane Film Modified by PVB

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