Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Textile Adhesion Properties of Polyurethane Hot Melt Adhesives Containing Ester Groups

에스터기를 함유한 폴리우레탄 핫멜트 접착제의 직물에 대한 접착물성

  • Received : 2018.08.28
  • Accepted : 2018.09.17
  • Published : 2018.09.30
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Abstract

In this study, polyurethane hot melt adhesive containing ester groups was synthesized. Three kinds of chain extenders were used to find out the best chain extender. Results showed that adhesive containing 1,4-butanediol as a chain extender exhibited the highest peel strength among them. Also, it was found that there existed the optimum molecular weight of 1,4-butanediol containing adhesive for make the highest peel strength.. Moreover, hot melt adhesive containing 1,4-butanediol chain extender was applied to various kinds of textiles substrate such as cotton, polyester, and urethane coated polyester textiles to study the effects of different substrates on the peel strength and water resistance at $60^{\circ}C$. It was found that cotton substrate showed the highest peel strength and urethane coated polyester substrate showed the highest resistance on $60^{\circ}C$ water.

본 연구에서는 에스터기를 함유하는 직물 접착용 폴리우레탄 핫멜트 접착제를 합성하였다. 분자량 증가를 위하여 서로 다른 3종의 사슬 연장제를 사용하였고, 사슬연장제의 종류에 따른 분자량 변화와 접착물성 변화를 비교하였다. 사슬연장제로써1,4-부탄디올을 사용한 경우 다른 사슬연장제를 사용했을 때 보다 더 높은 박리강도를 나타내었으며, 높은 박리강도를 발휘하는 최적의 분자량이 존재함을 알게 되었다. 또한, 핫멜트 접착제를 다양한 직물 즉, 면, 폴리에스터 그리고 우레탄이 코팅된 폴리에스터에 대하여 접착시킨 후 접착력 측정과 $60^{\circ}C$ 물에 대한 내수성 실험을 수행한 결과 면직물에 대한 박리강도가 가장 큼을 보였고 우레탄 코팅된 폴리에스터 직물에 대해 가장 큰 내수성을 보였다.

Keywords

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