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Low Density Structural RIM II: High Productivity LD-SRIM
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English
Abstract
Glass mat reinforced structural polyurethane foam or low density structural reaction injection molding (LD-SRIM) has found a niche in the manufacture of high quality, light weight, automotive, interior trim substrates. Current trends in the automotive industry indicate the need for cost reductions without sacrificing quality. A high productivity LD-SRIM system has been developed which meets this need. This cost reduction is achieved by the incorporation of an internal mold release agent and a 25 % decrease in demold time compared to current LD-SRIM technology. These technological advancements give the trim component manufacturer an increase in productivity by eliminating the time and labor required to apply external mold release and a shorter demold time. These advancements also provide for a significant reduction in the volatile organic compounds and cost associated with external mold release agents. Using a production model it has been estimated that a 20% increase in productivity can be achieved with this technology. A comparison of the physical properties of composites made with this system and those of a system currently employed in industry shows that they are very similar.
Authors
Citation
Mackey, P. and Amato, T., "Low Density Structural RIM II: High Productivity LD-SRIM," SAE Technical Paper 930632, 1993, https://doi.org/10.4271/930632.Also In
References
- Okagawa, F. “Glass Fiber Reinforced Rigid Polyurethane Foam,” International Progress in Urethane 2 Lancaster, PA Technomic Publishing Co., Inc. 1980
- Kleinholz, R. “Technical Aspects of the Reinforcement of Polyurethane Cellular Plastics With Glass Fiber Mats,” Proceedings of the Fachverband Schaumkunststoffe/SPI Polyurethanes World Congress Sept. 29 Oct. 2 1987
- Zwinselman, J. J. Tribelhorn Kent, G. N. “Glass Mat Reinforced Polyurethane Foams for The production of Liners,” Proceedings of the SPI-31st Annual Polyurethane Technical/Marketing Conference Oct. 18-21 1988
- Kuyzin, G. S. Schlotterbeck, D. G. Kent, G. N. “Non-Glass Reinforcement of Low-Density SRIM for Automotive Interior Trim Parts,” Proceedings of the SPI-32nd Annual Polyurethane Technical/Marketing Conference Oct. 1-4 1989
- Kuyzin, G. S. Schlotterbeck, D. G. “Low Density SRIM Technology - For Automotive Interior Trim Door Panel,” Proceedings of SAE International Congress and Exposition Feb. 26 1990
- Mackey, P. W. Schroeder, J. M. Covins K. G. “Low Density Structural RIM: Glass Mat Reinforced Structural Foam for Interior Trim Applications,” Proceedings of SAE International Congress and Exposition Feb. 24-28 1992
- Schroeder, J. M. Mackey, P. W. “New Developments in Low Density Structural RIM,” Proceedings of the SPI-34th Annual Polyurethane Technical/Marketing Conference Oct. 21-24 1992
- Ho, D. “Pour Behind Vinyl SRIM for Door Panel Applications” Proceedings of the SPI-34th Annual Polyurethane Technical/Marketing Conference Oct. 21-24 1992
- Robson “Internal Mold Release and Use Thereof In the Production of Molded Products
- Robertson “Silicone Surfactant/Organofunctional Polysiloxane Internal Mold Release Agents”
- Weaver, L. “Adding New Dimensions to Automotive Interiors with Light Weight RIM Composites” Proceedings of SAE International Congress and Exposition Feb. 24-28 1992