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Properties of segmented block copolyurethane I. Adhesion between PET cord and rubber by polybutadiene‐polyethylene terephthalate block copolyurethane
Author(s) -
Yamashiro Seiichi
Publication year - 1988
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760281007
Subject(s) - polybutadiene , materials science , natural rubber , polyethylene terephthalate , curing (chemistry) , polymer chemistry , composite material , adhesive , copolymer , polymer science , polymer , layer (electronics)
A block Copolyurethane was synthesized by using a hydroxy‐terminated 1,2‐polybutadiene (HPBD) having vinyl side chains and a molecular weight of 2000 to 5500 as a rubber‐affinitive component, a hydroxy‐terminated poly(ethylene terephthalate) as a PET‐affinitive component, and 4,4′‐diphenylmethane diisocyanate as a chain extender. The block copolymer was mixed with a curing agent and used for the adhesion of PET cord of 1100 denier and rubber. The peak of adhesive strength was observed at the HPBD molecular weight of 4500 within the molecular weight range of 2000 to 5500.