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Glass Fiber Reinforced Elastomers for Automotive Applications-A Comparison of RIM Urethanes and Alternative Material Systems
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Abstract
Glass fibers added to RIM urethanes provide materials which offer the automotive engineer a broadened performance spectrum. The composite materials are stiffer and have a lower coefficient of thermal expansion than unreinforced urethanes. These attributes have been beneficial to the growth of the use of plastic materials over the past thirty years.
High pressure RIM process equipment for the newer material systems can be designed to handle glass fibers. Each process equipment system must be analyzed in terms of the effect of glass fibers on the system's components.
Performance comparisons with other automotive elastomers, such as injection molded thermoplastic urethanes and EPDM compounds, show that glass fibers provide similar benefits to all of the competitive material systems. Comparative data describe how tailoring of the elastomers is possible and desirable in order to meet current automotive fascia guidelines.
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Citation
Isham, A., "Glass Fiber Reinforced Elastomers for Automotive Applications-A Comparison of RIM Urethanes and Alternative Material Systems," SAE Technical Paper 760333, 1976, https://doi.org/10.4271/760333.Also In
References
- Silverwood H. A. “Gaging the Future of Reaction Injection Molding” Modern Plastics August 1975
- Titlebaum R. P. “Liquid Injection Molding: Output, Control, Automation Open Big Markets” Plastics Machinery and Equipment October 1974
- “A New Day Dawns for Machinery” Modern Plastics July 1975
- “Urethane Foam Process Molds Large Rubbery Parts in a Hurry” Product Engineering October 1975
- Perry J. H. “Chemical Engineers Handbook” New York, New York McGraw Hill 1963
- “Manufacturers/RIM Systems” Plastics Technology Manufacturing Handbook and Buyers' Guide April 1975
- Isham A. B. “Automotive Fascia: How GR Elastomers Can Make the Grade” Plastics Engineering February 1975