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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 48, Number 2
JKCSEZ 48(2)
April 20, 2004 

 
Title
Extraction Property of Plasticizer in LPG High Pressure Rubber Hose

LPG용 고압고무호스에서 가소제 추출특성
Author
Young-Gu Kim*

김영구*
Keywords
가소제, 고무, 액화석유가스, 다중회귀분석 , Plasticizer, Rubber, Liquefied Petroleum Gas, Multiple Linear Regression
Abstract
LPG용 고압고무호스의 가소제 추출률에 대하여 연구하였다. 가소제 추출을 위한 침지용 용매는 프로판, n-부탄, n-펜탄, n-헥산, n-헵탄이며, 프로필렌, 1,3-부타디엔, 1-펜텐, 1-헥센, 에탄티올, t-부탄티올, 황화에틸메틸, 황화이메틸으로 조성되어 있다. 다중회귀분석으로 가소제 추출량과 침지용매의 설명인자사이의 상관관계를 다음과 같이 얻을 수 있었다. PE(wt%)=7.5193(±0.2466) - 0.585000(±0.05437)Carbon# + 2.3294(±0.1967)DB + 2364(±896.2)SH (N = 13, F = 24.135, R2 = 0.8894, Radj2 = 0.8526, Variance = 7.588) 증기압이 높고 극성도가 높은 조성의 LPG에 의하여 가소제는 많이 용출되었다. LPG에서 티올계 황화합물과 프로필렌이나 부타디엔 등의 불포화 탄화수소의 함량이 높아질수록 추출되는 가소제량은 증가한다. 반면에 큰 탄화수소일수록 고무로부터 추출된 가소제량은 적었다.

The extraction rates of plasticizer of LPG high pressure rubber are studied. Submerging solvents are composed of propane, n-butane, n-pentane, n-hexane, n-heptane, propylene, 1,3-butadiene, 1-pentene, 1-hexene, ethanethiol, t-butanethiol, dimethyl sulfide, methyl ethyl sulfide. The relationship between the extraction rate of plasticizer and the descriptors of submerging solvent by using multiple linear regression is as follows; PE(wt%) = 7.5193 - 0.58500Carbon# + 2.3294DB + 2364SH, (N = 13, F = 24.135, R2 = 0.8894, Radj2 = 0.8526, Variance = 7.588) Plasticizer is well extracted by LPG composed of the high vapour pressure and polarity compounds. The mass of extracted plasticizer becomes increasing in proportion to the contents of thiol sulfur compound and unsaturated hydrocarbon such as propylene and 1,3-butadiene in LPG. While the heavier hydrocarbons are, the less the quantities of plasticizer extracted from rubber are.

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