Development of thermoplastic polyurethane moisture?proof tapes for commercial aircraft

Abstract

Abstract: The performance of a foreign product and military anti?corrosion film （HP8714） was evaluated in terms of several key technical indicators， including water vapor transmission and vertical burning for 12 s， and the effects of adhesive type and content on the performance of the moisture barrier tapes were investigated by using ethyl acetate （EAC） as an adhesive solvent. The results indicated that the HP8714 TPU raw material （A198FR） could be used as a raw resin for the high?performance flame?retardant TPU moisture barrier tapes. With A198FR as the base material for barrier tapes， the pressure?sensitive adhesive， YY16， was determined as the most suitable adhesive at a preferred YY16/EAC mass ratio of 75/25. All of the property indexes were verified by third?party testing.

Key words: thermoplastic polyurethane, 12 s vertical combustion, water vapor transmission, moisture barrier tape

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Development of thermoplastic polyurethane moisture?proof tapes for commercial aircraft

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