섬유

preparation and characteristics of polyurethane and halogenated polymer blends for multi-functional wetting coagulating coating

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 319
blends of a polyurethane elastomer and polyvinyl chloride or polyvinylidene fluoride were obtained through precipitation from dmf solvent. studies on the compatibility of the blends were carried out using dsc, rheovibron, infrared spectroscopy, sem and tem. the tensile properties and the thermal stability of these blends were investigated through the use of stress-strain curves and dat-tg thermogram. the study also included coagulative behaviours in different coagulating conditions (temperature and composition of the coagulation bath). pu/pvc blends are compatible and can be made into porous films which possess high vapour permeability under certain conditions. however pu/pvdf blends are incompatible. (author abstract). 11 refs
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