Effects of Molding Condition on Surface Unevenness of GFRP Composites in Compression Molding
GFRP 복합재료의 압축성형에서 표면요철에 미치는 성형조건의 영향

Hyoung-Seok Kim, Jin-Woo Kim, Yong-Jae Kim, Dong-Gi Lee
2010 Transactions of the Korean Society of Mechanical Engineers A  
We have investigated the unexpected phenomena on the surface of molded GFRP composites. The major cause of the unevenness, as a result of which the surface becomes rough, is a shrinking of the matrix in the process of holding pressure and cooling temperature. The higher holding pressure load in a molding process and the lower demolding temperature in an annealing experiment, the better GFRP composites moldings improved its appearance. In addition, by taking the holding pressure and demolding
more » ... re and demolding temperature into consideration, we evaluate the process that causes the surface unevenness and the variation in the fiber projection height.
doi:10.3795/ksme-a.2010.34.11.1649 fatcat:ggg5j5wtlngijbdf2kjrmznuoq