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A Study on Epoxy SRIM
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Yamamoto, Shinji / Kihara, Yuuji / Sakai, Tadamoto / Ogawa, Hiromasa
Recently, structural reaction injection molding (SRIM) has been noted as a rapid molding method for composite materials. In this method, the preformed reinforce-ments are preset and molded in the cavity as in conventional resin transfer molding (RTM). In this study, epoxy resin was used as the matrix and glass fiber mats and cloths were used as reinforcements. The relationship between the conformation of reinforcements and the moldability and mechanical properties of molded composites were investigated. Preheating and degassing operations for the matrix resin were effective to prevent voids in the molded products. The continuous strand mats of glass fiber played an important role for the wetting action between the matrix resin and fibers. Mechanical properties of SRIM composite products depended on the content and structure of the reinforcement materials.
Key words: SRIM / Epoxy resin / Glass fiber reinforcement / Mechanical properties