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Abstract
This paper investigates the effect of polypropylene type and cellulose content on the foaming behavior of cellulose fiber-reinforced polypropylene composites in extrusion. Two types of polypropylene (linear and branched structures) were used as a polymer matrix. The thermal properties of the composites were characterized by a differential scanning calorimeter, and the viscosity of the composites was evaluated by a rotational rheometer. The foaming behavior of the composites was examined using an extrusion foaming system, in which carbon dioxide was used as a physical blowing agent for foams. The results suggested that the cell density increased with the increase of cellulose content. On the other hand, the void fraction decreased with the addition of cellulose, but the void fraction at the 40 wt% cellulose was higher than that at the 20 wt% cellulose. The results also indicated that the two types of polypropylene had a minimal effect on the foaming behaviors of the cellulose fiber composites.
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Affiliation(s)
- T Kuboki
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, Canada
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Idrus MAMM, Hamdan S, Islam MS, Roslee AA, Sobuz HR. The effects of binder on the physical and mechanical properties of chemically treated sawdust-reinforced polypropylene composites. J Appl Polym Sci 2012. [DOI: 10.1002/app.38842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Wootthikanokkhan J, Cheachun T, Sombatsompop N, Thumsorn S, Kaabbuathong N, Wongta N, Wong-On J, Na Ayutthaya SI, Kositchaiyong A. Crystallization and thermomechanical properties of PLA composites: Effects of additive types and heat treatment. J Appl Polym Sci 2012. [DOI: 10.1002/app.38715] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bao RY, Yang W, Tang XG, Xie BH, Yang MB. Hierarchical Distribution of β-Phase in Compression- and Injection-Molded, Polypropylene-Based TPV. J MACROMOL SCI B 2010. [DOI: 10.1080/00222341003609518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rui-Ying Bao
- a College of Polymer Science and Engineering , State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan, China
| | - Wei Yang
- a College of Polymer Science and Engineering , State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan, China
| | - Xue-Gang Tang
- b Division of Mechanical Engineering , School of Engineering, The University of Queensland , Queensland, Australia
| | - Bang-Hu Xie
- a College of Polymer Science and Engineering , State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan, China
| | - Ming-Bo Yang
- a College of Polymer Science and Engineering , State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan, China
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Lee YH, Kuboki T, Park CB, Sain M, Kontopoulou M. The effects of clay dispersion on the mechanical, physical, and flame-retarding properties of wood fiber/polyethylene/clay nanocomposites. J Appl Polym Sci 2010. [DOI: 10.1002/app.32045] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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