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Flame Retardance and Thermal Resistance of CPE Rubber Compound Containing a Phosphoric Ester Flame Retardant BDPDH  

Park, Hyun-Ho (Department of Chemistry, Keimyung University)
Lee, Chang-Seop (HS R&A Co., LTD R&D Center)
Publication Information
Elastomers and Composites / v.38, no.1, 2003 , pp. 72-80 More about this Journal
Abstract
Phosphoric ester compound was employed as thermal resistant and flame retardant for chlorinated polyethylene(CPE) rubber material which is used to prepare automotive oil cooler hose. Cure characteristics, physical properties, thermal resistance, and flame retardation of CPE rubber compounds were investigated. CPE rubber which has excellent properties such as cold resistance and chemical corrosion resistance, and is inexpensive in price than existing ethyleneacrylate rubber(EAR) was used to prepare a rubber compound useful for hose. A non-halogen flame retarding agent N,N'-bis- (diphenylphosphoro) diaminohexane(BDPDH), which is condensed phosphoric ester, was synthesized and it was mixed to CPE rubber material with the range of $0{\sim}30 phr$. From the test results, rheological properties, heat resistance, and flame retardance of CPE rubber compounds were found out to be much increased. The optimum content of BDPDH to rubber which gives maximum effect on thermal resistance and flame retardation, within the range of tolerable specification for rubber materials, was determined to be 20 phr.
Keywords
flame retardance; heat resistance; chlorinated polyethylene(CPE); phosphoric ester; N,N'-bis-(diphenylphosphoro) diaminohexane(BDPDH);
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