Cargando…
Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites
The shrinkage of reinforced polymer composites in injection molding varies, depending on the properties of the reinforcing agent. Therefore, the study of optimal reinforcement conditions, to minimize shrinkage when talc and glass fibers (GF) (which are commonly used as reinforcements) are incorporat...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6427219/ https://www.ncbi.nlm.nih.gov/pubmed/30845669 http://dx.doi.org/10.3390/ma12050764 |
_version_ | 1783405161580855296 |
---|---|
author | Ryu, Youngjae Sohn, Joo Seong Kweon, Byung Chul Cha, Sung Woon |
author_facet | Ryu, Youngjae Sohn, Joo Seong Kweon, Byung Chul Cha, Sung Woon |
author_sort | Ryu, Youngjae |
collection | PubMed |
description | The shrinkage of reinforced polymer composites in injection molding varies, depending on the properties of the reinforcing agent. Therefore, the study of optimal reinforcement conditions, to minimize shrinkage when talc and glass fibers (GF) (which are commonly used as reinforcements) are incorporated into polypropylene (PP), is required. In this study, we investigated the effect of reinforcement factors, such as reinforcement type, reinforcement content, and reinforcement particle size, on the shrinkage, and optimized these factors to minimize the shrinkage of the PP composites. We measured the shrinkage of injection-molded samples, and, based on the measured values, the optimal conditions were obtained through analysis of variance (ANOVA), the Taguchi method, and regression analysis. It was found that reinforcement type had the largest influence on shrinkage among the three factors, followed by reinforcement content. In contrast, the reinforcement size was not significant, compared to the other two factors. If the reinforcement size was set as an uncontrollable factor, the optimum condition for minimizing directional shrinkage was the incorporation of 20 wt % GF and that for differential shrinkage was the incorporation of 20 wt % talc. In addition, a shrinkage prediction method was proposed, in which two reinforcing agents were incorporated into PP, for the optimization of various dependent variables. The results of this study are expected to provide answers about which reinforcement agent should be selected and incorporated to minimize the shrinkage of PP composites. |
format | Online Article Text |
id | pubmed-6427219 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64272192019-04-15 Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites Ryu, Youngjae Sohn, Joo Seong Kweon, Byung Chul Cha, Sung Woon Materials (Basel) Article The shrinkage of reinforced polymer composites in injection molding varies, depending on the properties of the reinforcing agent. Therefore, the study of optimal reinforcement conditions, to minimize shrinkage when talc and glass fibers (GF) (which are commonly used as reinforcements) are incorporated into polypropylene (PP), is required. In this study, we investigated the effect of reinforcement factors, such as reinforcement type, reinforcement content, and reinforcement particle size, on the shrinkage, and optimized these factors to minimize the shrinkage of the PP composites. We measured the shrinkage of injection-molded samples, and, based on the measured values, the optimal conditions were obtained through analysis of variance (ANOVA), the Taguchi method, and regression analysis. It was found that reinforcement type had the largest influence on shrinkage among the three factors, followed by reinforcement content. In contrast, the reinforcement size was not significant, compared to the other two factors. If the reinforcement size was set as an uncontrollable factor, the optimum condition for minimizing directional shrinkage was the incorporation of 20 wt % GF and that for differential shrinkage was the incorporation of 20 wt % talc. In addition, a shrinkage prediction method was proposed, in which two reinforcing agents were incorporated into PP, for the optimization of various dependent variables. The results of this study are expected to provide answers about which reinforcement agent should be selected and incorporated to minimize the shrinkage of PP composites. MDPI 2019-03-06 /pmc/articles/PMC6427219/ /pubmed/30845669 http://dx.doi.org/10.3390/ma12050764 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ryu, Youngjae Sohn, Joo Seong Kweon, Byung Chul Cha, Sung Woon Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites |
title | Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites |
title_full | Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites |
title_fullStr | Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites |
title_full_unstemmed | Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites |
title_short | Shrinkage Optimization in Talc- and Glass-Fiber-Reinforced Polypropylene Composites |
title_sort | shrinkage optimization in talc- and glass-fiber-reinforced polypropylene composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6427219/ https://www.ncbi.nlm.nih.gov/pubmed/30845669 http://dx.doi.org/10.3390/ma12050764 |
work_keys_str_mv | AT ryuyoungjae shrinkageoptimizationintalcandglassfiberreinforcedpolypropylenecomposites AT sohnjooseong shrinkageoptimizationintalcandglassfiberreinforcedpolypropylenecomposites AT kweonbyungchul shrinkageoptimizationintalcandglassfiberreinforcedpolypropylenecomposites AT chasungwoon shrinkageoptimizationintalcandglassfiberreinforcedpolypropylenecomposites |