Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis

Calcium carbonate (CaCO<sub>3</sub>) particles have been widely used in filling thermoplastics for different applications in automotive, packaging, and construction. No agreement has been reached in the research community regarding the function of CaCO<sub>3</sub> for enhanci...

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Main Authors:	Yucheng Peng, Munkaila Musah, Brian Via, Xueqi Wang
Format:	article
Language:	EN
Published:	MDPI AG 2021
Subjects:	homopolymer polypropylene calcium carbonate composites impact strength Technology T Science Q
Online Access:	https://doaj.org/article/4e780867d7974a64953a8a74b61817d3
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spelling	oai:doaj.org-article:4e780867d7974a64953a8a74b61817d32021-11-25T18:03:18ZCalcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis10.3390/jcs51103022504-477Xhttps://doaj.org/article/4e780867d7974a64953a8a74b61817d32021-11-01T00:00:00Zhttps://www.mdpi.com/2504-477X/5/11/302https://doaj.org/toc/2504-477XCalcium carbonate (CaCO<sub>3</sub>) particles have been widely used in filling thermoplastics for different applications in automotive, packaging, and construction. No agreement has been reached in the research community regarding the function of CaCO<sub>3</sub> for enhancing toughness of homopolymer polypropylene (HPP). This study was to understand the effect of different loading levels of CaCO<sub>3</sub> on HPP toughness, including notched and unnotched impact strength. A batch mixer was used to thermally compound CaCO<sub>3</sub> particles with HPP at loading levels of 10, 20, 30, 40, and 50 wt.%, followed by specimen preparation using an injection molding process. The mechanical properties of the composites, including tensile, flexural, and impact were characterized. The results indicated that tensile strengths decreased significantly with increasing loading levels of CaCO<sub>3</sub> particles while the tensile and flexural modulus increased significantly with increasing particle loadings. The composite tensile properties changed linearly with increasing CaCO<sub>3</sub> loadings. The notched Izod impact strength of the composites was sustained by adding CaCO<sub>3</sub> particles up to 40 wt.% while the unnotched impact strength decreased significantly with the addition of CaCO<sub>3</sub> particles. Different deformation mechanisms between notched (fracture propagation) and unnotched (fracture initiation and propagation) impact tests were proposed to be the reason.Yucheng PengMunkaila MusahBrian ViaXueqi WangMDPI AGarticlehomopolymer polypropylenecalcium carbonatecompositesimpact strengthTechnologyTScienceQENJournal of Composites Science, Vol 5, Iss 302, p 302 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	homopolymer polypropylene calcium carbonate composites impact strength Technology T Science Q
spellingShingle	homopolymer polypropylene calcium carbonate composites impact strength Technology T Science Q Yucheng Peng Munkaila Musah Brian Via Xueqi Wang Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis
description	Calcium carbonate (CaCO<sub>3</sub>) particles have been widely used in filling thermoplastics for different applications in automotive, packaging, and construction. No agreement has been reached in the research community regarding the function of CaCO<sub>3</sub> for enhancing toughness of homopolymer polypropylene (HPP). This study was to understand the effect of different loading levels of CaCO<sub>3</sub> on HPP toughness, including notched and unnotched impact strength. A batch mixer was used to thermally compound CaCO<sub>3</sub> particles with HPP at loading levels of 10, 20, 30, 40, and 50 wt.%, followed by specimen preparation using an injection molding process. The mechanical properties of the composites, including tensile, flexural, and impact were characterized. The results indicated that tensile strengths decreased significantly with increasing loading levels of CaCO<sub>3</sub> particles while the tensile and flexural modulus increased significantly with increasing particle loadings. The composite tensile properties changed linearly with increasing CaCO<sub>3</sub> loadings. The notched Izod impact strength of the composites was sustained by adding CaCO<sub>3</sub> particles up to 40 wt.% while the unnotched impact strength decreased significantly with the addition of CaCO<sub>3</sub> particles. Different deformation mechanisms between notched (fracture propagation) and unnotched (fracture initiation and propagation) impact tests were proposed to be the reason.
format	article
author	Yucheng Peng Munkaila Musah Brian Via Xueqi Wang
author_facet	Yucheng Peng Munkaila Musah Brian Via Xueqi Wang
author_sort	Yucheng Peng
title	Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis
title_short	Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis
title_full	Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis
title_fullStr	Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis
title_full_unstemmed	Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis
title_sort	calcium carbonate particles filled homopolymer polypropylene at different loading levels: mechanical properties characterization and materials failure analysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4e780867d7974a64953a8a74b61817d3
work_keys_str_mv	AT yuchengpeng calciumcarbonateparticlesfilledhomopolymerpolypropyleneatdifferentloadinglevelsmechanicalpropertiescharacterizationandmaterialsfailureanalysis AT munkailamusah calciumcarbonateparticlesfilledhomopolymerpolypropyleneatdifferentloadinglevelsmechanicalpropertiescharacterizationandmaterialsfailureanalysis AT brianvia calciumcarbonateparticlesfilledhomopolymerpolypropyleneatdifferentloadinglevelsmechanicalpropertiescharacterizationandmaterialsfailureanalysis AT xueqiwang calciumcarbonateparticlesfilledhomopolymerpolypropyleneatdifferentloadinglevelsmechanicalpropertiescharacterizationandmaterialsfailureanalysis
_version_	1718411677925376000

Calcium Carbonate Particles Filled Homopolymer Polypropylene at Different Loading Levels: Mechanical Properties Characterization and Materials Failure Analysis

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