Suppressing shrinkage/warpage of PBT injection molded parts with fillers
Source abstract
Abstract
Polybutylene terephthalate (PBT) was chosen as the model polymer for studying the method of polymer modification in purpose of suppressing shrinkage and warpage with fillers. With high crystallinity, injection molded PBT products would easily be distorted by anisotropic shrinkage or residual stress. In this article, glass fiber, talcum, calcium carbonate, wollastonite powder were filled into PBT to make composites, and the roles of filler types, filler compositions, and feeding methods for filler incorporation were explored by studying the performance of the resulted composites. The samples were also investigated with differential scanning calorimetry and scanning electronic microscopy. It is shown that uniform shrinkage and enhanced mechanical performance can be obtained. POLYM. COMPOS., 39:2377–2384, 2018. © 2016 Society of Plastics Engineers
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Research context
OpenAlex topics: Polymer crystallization and properties · Injection Molding Process and Properties · Polymer Foaming and Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory for Liquid‐Solid Structural Evolution & Processing of Materials Ministry of Education, 17923 Jingshi Road Jinan Shandong 250061 China
Material Science & Engineering Department, 17923 Jingshi Road Jinan Shandong 250061 China
Chemical Engineering Department and Polymers Research Group Queen's University, 314 Dupuis Hall, 19 Division Street Kingston Ontario K7L 3N6 Canada
Harbin University of Science and Technology Rongcheng Campus, Xueyuan Road 2006 # Rongcheng Shandong 264300 China
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