Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer composites
A novel wood particle/polypropylene/elastomer composites with good impact resistance and stiffness was prepared by adding elastomer-olefin block copolymer (OBC) and grafting maleic anhydride (MAH) on polypropylene/OBC blends. The grafted MAH greatly improved the interfacial interaction among polypro...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-11-01
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| Series: | Materials & Design |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127519303569 |
| _version_ | 1811330832021848064 |
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| author | Shunmin Yi Shihua Xu Yue Li Wentao Gan Xin Yi Wanyu Liu Qingwen Wang Haigang Wang Rongxian Ou |
| author_facet | Shunmin Yi Shihua Xu Yue Li Wentao Gan Xin Yi Wanyu Liu Qingwen Wang Haigang Wang Rongxian Ou |
| author_sort | Shunmin Yi |
| collection | DOAJ |
| description | A novel wood particle/polypropylene/elastomer composites with good impact resistance and stiffness was prepared by adding elastomer-olefin block copolymer (OBC) and grafting maleic anhydride (MAH) on polypropylene/OBC blends. The grafted MAH greatly improved the interfacial interaction among polypropylene, OBC, and wood particle, resulting in an enhanced impact resistance, stiffness and dimensional stability of the resulting composites. The modified matrix and their composites were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, mechanical tests, and dynamic mechanical analysis. The results confirmed that with 60 wt% wood particles loading, the synergistic interactions between OBC blending and MAH grafting improved the impact strength of the MAH-grafted blends/wood particle composites by 49%, with stiffness comparable that of the MAH-grafted polypropylene/wood particle composites. The composites modified with MAH also revealed an enhanced interfacial adhesion among polypropylene, OBC, and wood particles, as evidenced by dimensional stability tests, dynamic mechanical analysis, and morphology observation. Keywords: Polymer-matrix composites, Graft modification, Interface, Fracture toughness, Plastic deformation |
| first_indexed | 2024-04-13T16:09:52Z |
| format | Article |
| id | doaj.art-40ca6a8a5f7e4533832ffef1e9b67f96 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-13T16:09:52Z |
| publishDate | 2019-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-40ca6a8a5f7e4533832ffef1e9b67f962022-12-22T02:40:18ZengElsevierMaterials & Design0264-12752019-11-01181Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer compositesShunmin Yi0Shihua Xu1Yue Li2Wentao Gan3Xin Yi4Wanyu Liu5Qingwen Wang6Haigang Wang7Rongxian Ou8Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR ChinaKey Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China; School of Arts and Design, Wuyi University, Jiangmen 529020, ChinaKey Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR ChinaKey Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR ChinaCollege of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR ChinaKey Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR ChinaCollege of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR ChinaKey Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China; Corresponding authors.College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China; Corresponding authors.A novel wood particle/polypropylene/elastomer composites with good impact resistance and stiffness was prepared by adding elastomer-olefin block copolymer (OBC) and grafting maleic anhydride (MAH) on polypropylene/OBC blends. The grafted MAH greatly improved the interfacial interaction among polypropylene, OBC, and wood particle, resulting in an enhanced impact resistance, stiffness and dimensional stability of the resulting composites. The modified matrix and their composites were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, mechanical tests, and dynamic mechanical analysis. The results confirmed that with 60 wt% wood particles loading, the synergistic interactions between OBC blending and MAH grafting improved the impact strength of the MAH-grafted blends/wood particle composites by 49%, with stiffness comparable that of the MAH-grafted polypropylene/wood particle composites. The composites modified with MAH also revealed an enhanced interfacial adhesion among polypropylene, OBC, and wood particles, as evidenced by dimensional stability tests, dynamic mechanical analysis, and morphology observation. Keywords: Polymer-matrix composites, Graft modification, Interface, Fracture toughness, Plastic deformationhttp://www.sciencedirect.com/science/article/pii/S0264127519303569 |
| spellingShingle | Shunmin Yi Shihua Xu Yue Li Wentao Gan Xin Yi Wanyu Liu Qingwen Wang Haigang Wang Rongxian Ou Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer composites Materials & Design |
| title | Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer composites |
| title_full | Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer composites |
| title_fullStr | Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer composites |
| title_full_unstemmed | Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer composites |
| title_short | Synergistic toughening effects of grafting modification and elastomer-olefin block copolymer addition on the fracture resistance of wood particle/polypropylene/elastomer composites |
| title_sort | synergistic toughening effects of grafting modification and elastomer olefin block copolymer addition on the fracture resistance of wood particle polypropylene elastomer composites |
| url | http://www.sciencedirect.com/science/article/pii/S0264127519303569 |
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