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Impact essential work of fracture of polypropylene/montmorillonite nanocomposites toughened with SEBS-g-MA elastomer
Affiliation:1. Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan;2. Shah-Schulman Center for Surface Science and Nanotechnology, Dharmsinh Desai University, Nadiad 387001, India;3. Department of Chemical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 10607, Taiwan;1. Centro/Departamento de Física, Universidade do Minho, 4710-057, Braga, Portugal;2. Centro/Departamento de Química, Universidade do Minho, 4710-057, Braga, Portugal;3. Institute for Polymer and Composites/I3N, Universidade do Minho, 4800-058, Guimarães, Portugal;1. Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea;2. Department of Chemical Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea;1. Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, School of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China;2. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
Abstract:Poly(propylene) (PP)/organo-montmorillonite (Org-MMT) nanocomposites toughened with maleated styrene–ethylene–butylene–styrene (SEBS-g-MA) were prepared via melt compounding. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to evaluate the effects of the Org-MMT and SEBS-g-MA additions on the structure of nanocomposites. XRD traces showed that the characteristic (0 0 1) peak of the nanocomposites shifted to the lower angle region. Multi-layered stacks of clay platelets and independent exfoliated platelets were observed in TEM image. This implied that mixed intercalated and exfoliated structure were developed in the nanocomposites. The impact essential work of fracture (EWF) tests were used to evaluate the impact fracture toughness of the nanocomposites toughened with elastomer. The results showed that the SEBS-g-MA additions were beneficial in enhancing the essential and non-essential work of fracture of the nanocomposites.
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