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Abstract

Glass fibers are used in RRIM Urethane to pro vide dimensional stability and good physical properties- particularly impact strength. However, 1/16" milled glass fibers have the disadvantages of high cost (approximately 82¢/Ib.), anisotropic impact properties and difficult handling and process characteristics. Acicular type fillers, such as Wollastonite, provide tempting substitution possibilities because of lower price, isotropic impact properties and in herent easier handling. However, untreated Wollastonite grades provided inferior properties when compared to silane sized 1/16" milled fiberglass. Silane treated Wollastonite, G. Wollastokup 1100 0.5, has shown promise but falls short in the important area of impact.

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References

Bulletin No. KR-0278-7 Rev. #2, Reference Manual, Bibliography, Kenrich Petrochemicals Inc.

Modern Plastics, August 1981, Vol. 58 No. 8, Page 34.

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Private Communication, 22 January 1980 to S.J. Monte from T.J. Reinhart, Jr., Chief-Composites, Adhesives and Fibrous Matls. Br, Nonmetallic Materials Division, Dept. of the Air Force, Air Force Wright Aeronautical Laboratories, Wright-Patterson Air Force Base, Ohio 45433.

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Application of Titanate Coupling Agents in Mineral and Glass Fiber Filled Rim Urethane Systems

Abstract

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References