The adhesive properties of chlorinated ultra-high molecular weight polyethylene

H.N.A.M. Menting, P.E.L. Voets, P.J. Lemstra

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Ultra-high molecular weight polyethylene (UHMW-PE) is well known for its abrasion and chemical resistance. Recently we developed a new application for UHMW-PE as a liner in elastomeric hoses. It was found that the adhesion between UHMW-PE and elastomers such as ethylene-propylene-diene monomer (EPDM) and styrene-butadiene rubber (SBR) is sufficient for practical applications, but the adhesion to nitrile rubber (NBR) is poor. In order to improve the adhesion between NBR and the UHMW-PE liner, (nascent) powder chlorinated polyethylenes were used as interlayers between UHMW-PE and NBR. These powder chlorinated polyethylenes are polymers with a dual nature and are composed of highly chlorinated polyethylene segments compatible with NBR and polyethylene segments compatible with UHMW-PE. In order to achieve sufficient adhesion, the chlorine content of the chlorinated blocks should be at least 15 wt%. If these powder chlorinated UHMW-PEs have a chlorine content of 15 wt% in the chlorinated blocks, dilution with polyethylene hardly affects the adhesive properties, which is an advantage in the practical use of these materials as interlayers.
Original languageEnglish
Pages (from-to)889-897
Number of pages8
JournalJournal of Adhesion Science and Technology
Issue number7
Publication statusPublished - 1995

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