Mechanical,thermal, and water uptake characteristics of woodflour‐filled polyvinyl chloride/acrylonitrile butadiene styrene blends |
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| Authors: | Sarawut Rimdusit Dolhathai Atthakorn Siriporn Damrongsakkul Duangporn Saramas Sunan Tiptipakorn |
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| Affiliation: | 1. Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand;2. Vinythai PLC., Bangkok 10110, Thailand;3. Department of Chemistry, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen, Nakorn Pathom 73140, Thailand |
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| Abstract: | Woodflour‐filled composites based on polymeric blends of polyvinyl chloride (PVC) and super high‐impact grade ABS were developed. Mechanical, thermal, and water uptake characteristics of the PVC/ABS matrix and their wood composites were evaluated. In the case of PVC/ABS matrix, the blend at a mass ratio of 50/50 rendered the impact strength with a very high value of up to 65 kJ/m2, noticeably higher than those of the parent resins, that is, 6 kJ/m2 of PVC and 35 kJ/m2 of ABS. Dynamic mechanical analysis thermograms showed two distinct glass transition temperatures (Tgs) that shifted toward each other indicating partial miscibility of the blends. Water absorption of the blends after 24 h immersion was low, that is, within the range of 0.04–0.2 wt % and exhibits a behavior closed to pseudo‐Fickian type. The obtained PVC/ABS wood composites exhibited an increase of flexural modulus as well as Tgs with an increase of woodflour content. Finally, impact strength of the PVC/ABS composites was significantly higher than those of PVC composites or polyethylene composites comparing at the same woodflour content. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
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| Keywords: | blends composites impact resistance mechanical properties reinforcement |
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