학술논문
Molded geometry and viscoelastic behavior of film insert molded parts.
Document Type
Article
Author
Source
Journal of Applied Polymer Science; Jan2009, Vol. 111 Issue 2, p642-650, 9p
Subject
Language
ISSN
00218995
Abstract
The article examines warpage of film insert molded (FIM) parts after ejection from the mold cavity. Virgin injection-molded tensile specimens without any inserted film and four kinds of film insert FIM tensile specimens were annealed. The FIM specimens with the unannealed film were discovered to be protruded after ejection, the warpage was reversed gradually during annealing, and the film side was intruded. Warpage of the specimen with the film annealed at 80°C for 20 days was not reversed.