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Improving Polyolefin Properties with Butyl
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English
Abstract
Adding small amounts of butyl rubber to polyolefin compositions results in a number of performance improvements. Polyethylenes containing butyl show improved ESCR (environmental stress-cracking resistance) and increased resistance to impact, puncture and tear. In polypropylene, butyl provides improved impact strength at low temperatures. In both types, the butyl rubber improves vapour barrier capabilities, chemical resistance and energy absorptivity. Butyl can also be used with mineral fillers to extend polyolefins without reducing their impact strength or flexibility. Present and potential automotive applications for butyl modified plastics include battery boxes; bumper strips; sponge components; tapes; and protective films.
The paper illustrates the improvements gained in the properties of polyolefin compositions through the use of butyl rubber, and presents an evaluation of several mineral fillers (alumina, mica, whiting, talc) in polyolefin compositions.
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Citation
Kumbhani, K. and Kent, E., "Improving Polyolefin Properties with Butyl," SAE Technical Paper 811348, 1981, https://doi.org/10.4271/811348.Also In
References
- “Modern Plastics International” 1981 33
- Carson, E. “Automotive Market - Impetus to the Growth of Polyolefin Polymers” Amoco Chemicals 1977
- Kumbhani, K.J. “Butyl Rubber — A Useful Modifier for Polyolefins” New York Rubber Group 1979
- Deanin, R.D. Sperling, L.H. “Recent Advances In Polymer Blends, Grafts, & Blocks” 63 92 1974
- Nielsen, L.E. “Mechanical Properties of Polymers & Composites”, Ch. 7, especially 397 401 1974
- Deanin, R. Normandin, R. Kannankerll C. (Lowell Technological Institute) “Polyblends of Polyethylene and Polypropylene with Butyl Rubber” ACS 1975