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NTIS 바로가기한국유화학회지 = Journal of oil & applied science, v.34 no.1, 2017년, pp.66 - 82
Organosilicone-based surfactants consist of hydrophobic organosilicone groups coupled to hydrophilic polar groups. Organosilicone surfactants have been widely used in many industrial fields starting from polyurethane foam to construction materials, cosmetics, paints & inks, agrochemicals, etc., beca...
핵심어 | 질문 | 논문에서 추출한 답변 |
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유기실리콘 계면활성제의 장점은? | 유기실리콘 계면활성제는 소수성 유기실리콘 그룹에 친수성 극성 그룹이 결합되어 있다. 유기실리콘의 독특한 특성으로 인하여 유기실리콘 계면활성제는 낮은 계면장력, 윤활성, 퍼짐성, 발수성, 열 안정성, 화학적 안정성 때문에 폴리우레탄 폼, 건설재료, 화장품, 페인트잉크, 농약 등 많은 산업분야에 사용되고 있다. 특히 저분자 유기실리콘을 소수기로 한 트리실록산 계면활성제는 낮은 표면장력과 우수한 습윤/퍼짐성 때문에 super wetter/super spreader로서 활용되고 있으나 가수분해에 취약한 단점도 가지고 있다. | |
트리실록산 계면활성제의 장단점은? | 유기실리콘의 독특한 특성으로 인하여 유기실리콘 계면활성제는 낮은 계면장력, 윤활성, 퍼짐성, 발수성, 열 안정성, 화학적 안정성 때문에 폴리우레탄 폼, 건설재료, 화장품, 페인트잉크, 농약 등 많은 산업분야에 사용되고 있다. 특히 저분자 유기실리콘을 소수기로 한 트리실록산 계면활성제는 낮은 표면장력과 우수한 습윤/퍼짐성 때문에 super wetter/super spreader로서 활용되고 있으나 가수분해에 취약한 단점도 가지고 있다. 트리실록산 계면활성제의 기능향상과 단점개선 등 응용분야에서의 요구사항을 반영하기 위하여 다양한 화학구조를 가진 트리실록산 계면활성제들이 개발되고 있다. | |
실리콘계 계면활성제의 특성상 계면활성제의 분자량이 커짐에 따라 생겨난 단점은? | 실리콘계 계면활성제의 소수성그룹은 일반적으로 고분자 유기규소구조를 가지고 있고 분자량이 크고 따라서 소수성이 매우 크기 때문에 실리콘계 계면활성제의 친수성 그룹 또한 친수성을 크게 함으로써 전체적인 계면활성제의 분자량이 커지게 된다, 따라서 일반적인 실리콘계 계면활성제는 거대한 유기규소 그룹의 강한 소수성으로 인해물에 대한 용해·분산성이 좋지 않을 뿐만 아니라 전체적으로 분자량이 크기 때문에 계면활성제의 동적 특성과 효율성 측면에서 단점도 보여 주고 있다[4]. |
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