A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
THICKENER FOR GYPSUM PLASTER AND GYPSUM PLASTER CONTAINING THE SAME
The present invention relates to a thickener for gypsum plaster, including hydroxyl ethyl methyl cellulose (HEMC) whose degree of substituent of methyl groups (DS) is 1.0 to 1.5 and degree of substituent of hydroxyl ethyl groups (MS) is 0.2 to 0.4 and hydroxyl ethyl cellulose whose degree of substituent of hydroxyl ethyl groups (MS) is 1.6 to 3.5, and a gypsum plaster including the same wherein the provided thickener for gypsum plaster is made by mixing hydroxyl ethyl methyl cellulose with certain degree of substituent and hydroxyl ethyl cellulose, thereby providing gypsum plaster which has good water retention property at high temperatures and improved workability, working time and resistance to sagging.
본 발명은 메틸기 치환도(DS)가 1.0 ~ 1.5 이고, 히드록시에틸기 치환도(MS)가 0.2 ~ 0.4인 히드록시에틸메틸 셀룰로오스(HEMC); 및 히드록시에틸기 치환도(MS)가 1.6 ~ 3.5인 히드록시에틸 셀룰로오스(HEC)를 포함하는 석고 플라스터용 증점제 및 이를 포함하는 석고 플라스터에 관한 것이다. 본 발명에 따르면, 특정 치환도를 갖는 히드록시에틸메틸 셀룰로오스와 히드록시에틸 셀룰로오스가 혼합된 석고 플라스터용 증점제를 제공함으로써 고온 환경하에서 우수한 보수성을 가지며, 작업성, 작업가능시간 및 처짐 저항성이 전반적으로 향상된 석고 플라스터를 제공할 수 있다.
THICKENER FOR GYPSUM PLASTER AND GYPSUM PLASTER CONTAINING THE SAME
The present invention relates to a thickener for gypsum plaster, including hydroxyl ethyl methyl cellulose (HEMC) whose degree of substituent of methyl groups (DS) is 1.0 to 1.5 and degree of substituent of hydroxyl ethyl groups (MS) is 0.2 to 0.4 and hydroxyl ethyl cellulose whose degree of substituent of hydroxyl ethyl groups (MS) is 1.6 to 3.5, and a gypsum plaster including the same wherein the provided thickener for gypsum plaster is made by mixing hydroxyl ethyl methyl cellulose with certain degree of substituent and hydroxyl ethyl cellulose, thereby providing gypsum plaster which has good water retention property at high temperatures and improved workability, working time and resistance to sagging.
본 발명은 메틸기 치환도(DS)가 1.0 ~ 1.5 이고, 히드록시에틸기 치환도(MS)가 0.2 ~ 0.4인 히드록시에틸메틸 셀룰로오스(HEMC); 및 히드록시에틸기 치환도(MS)가 1.6 ~ 3.5인 히드록시에틸 셀룰로오스(HEC)를 포함하는 석고 플라스터용 증점제 및 이를 포함하는 석고 플라스터에 관한 것이다. 본 발명에 따르면, 특정 치환도를 갖는 히드록시에틸메틸 셀룰로오스와 히드록시에틸 셀룰로오스가 혼합된 석고 플라스터용 증점제를 제공함으로써 고온 환경하에서 우수한 보수성을 가지며, 작업성, 작업가능시간 및 처짐 저항성이 전반적으로 향상된 석고 플라스터를 제공할 수 있다.
THICKENER FOR GYPSUM PLASTER AND GYPSUM PLASTER CONTAINING THE SAME
석고 플라스터용 증점제 및 이를 포함하는 석고 플라스터
KIM SUNG HOON (author) / LEE A REUM (author)
2015-06-24
Patent
Electronic Resource
Korean
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