한국섬유공학회:학술대회논문집 (Proceedings of the Korean Fiber Society Conference)
- 한국섬유공학회 1994년도 추계 학술발표회
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- Pages.137-138
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- 1994
음이온형 수분산성 공중합 폴리에스테르의 합성 및 응용 연구(II)
초록
Anionic water dispersible copolyesters were synthesized and characterized. Viscosity of the copolyester is lower than that of routine acrylic water dispersible polymers. Adhesive force of the copolyester was much higher than that of water dispersible acrylic polymers. Particle size of the copolyesters in water decreased with the increase of DMS or DEG feed ratio. With the conclusive study of the data of particle size and potential, it was found that the dispersion stability of copolyesters in water increased with the increase of DMS or DEG feed ratio. Judging from the results of potential and particle size of copolyesters, there seems to be competition between two dispersion stability factors, i.e. electrostatic stabilization and steric stabilization and as a result, morphological change of particles occurrs. Tg decreased with the increase of DEG molar feed ratio or oil contents.
키워드