Abstract
The seals for automotive windows, doors, lights, etc. may all be considered as weatherstrip or weatherseals. The production of weather strip usually involves the extrusion of a complex shaped profile with precisely defined dimensions (see Figure 17.1). Rubber has for many years been used for sealing purposes in a vehicle; it is flexible and resilient and can be extruded relatively easily. In the early 1970s, automotive weatherstrip was made from a single polymer rubber, mainly natural rubber (NR) which has excellent resilience, but relatively poor weathering resistance. However, other elastomers including styrene-butadiene rubber (SBR), polychloroprene (CR) and ethylene-propylene-diene monomer rubber (EPDM) were also used [1]. Towards the end of the 1970s EPDM had become dominant primarily because of its superior weathering and ozone resistance coupled with its high filler acceptance and wide processing latitude. Analysis [2] of a recent, medium-sized, high sales volume vehicle has shown that more than 66% of the non-tyre rubber used in the car is based on EPDM of which some 75% is EPDM weatherstrip of some form. This compares with about 12% of the non-tyre rubber in a car being NR.
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References
Furminger, S. (1973) Automobile weatherseals. Rubber in Transport Engineering, NRPRA, 9/1-9/5.
Jourdain, E.P. (1996) Compounding parameters to control the iridescent bloom in EPDM body sealing applications. Paper No. 42, ACS Rubber Division Meeting, Montreal, Canada, May 5–8.
Schauder, J.R. and Stella, G. (1992) The unique design latitude of EPDM rubbers. Kautschuk Gummi Kunststoffe, 45(12), 1055–1060.
Snappy Vistalon® EPDM compounds TI-51 (1975), Elastomers Technical Information, Exxon Chemicals.
Jyawook, S. (1987) Automotive body sealing: Design and technology. Paper c, ACS Rubber Division Meeting — Educational Symposium No. 19 (Nontire automative applications), Cleveland, Ohio, USA, October 6–9.
Ohwaki, M. (1987) Current requirements and future trends for automotive application of elastomers. Paper g, ACS Rubber Division Meeting — Educational Symposium No. 19 (Nontire automative applications), Cleveland, Ohio, USA, October 6–9.
von Hellens, C.W. (1989) Some considerations for the application of EPDM in tire components. Paper No. 40, ACS Rubber Division Meeting, Detroit, Michigan, USA, October 17–20.
American Society for Testing Materials (1990) Standard test methods for rubber property — Extrudability of unvulcanized compounds, D 2230-90.
Ford Motor Company (1995) Engineering Material Specification No. WDS-M2D405-A1. Ford Automative Safety and Engineering Standards.
MRPRA (1984) Detergent-resistant washing machine seals. The Natural Rubber Formulary and Property Index, Malaysian Rubber Producers’ Research Association.
Personal communication (1984), DSM Elastomers Europe, The Netherlands.
Dannenberg, E.M. (1986) Bound rubber and carbon black reinforcement. Rubber Chemistry and Technology, 59, 512–524.
Freakley, P.K. (1985) Rubber Processing and Product Organisation. Plenum Press, New York.
Davies, V.L. (1954) Design and analysis of experiments. Oliver & Boyd, London.
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© 1998 Springer Science+Business Media Dordrecht
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bin Ahmad, M.A., Arizal, R., Cook, S. (1998). NR/EPDM blends for extruded profile weatherstrip. In: Tinker, A.J., Jones, K.P. (eds) Blends of Natural Rubber. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4922-8_17
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DOI: https://doi.org/10.1007/978-94-011-4922-8_17
Publisher Name: Springer, Dordrecht
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