Effects of accelerated aging and compatibilizers on the mechanical and morphological properties of polypropylene and poly(acrylonitrile-butadiene-styrene) blends
- Authors
- Lee, Yun Kyun; Lee, Jae Bok; Park, Dong Hyup; Kim, Woo Nyon
- Issue Date
- 15-1월-2013
- Publisher
- WILEY
- Keywords
- polymer blends; compatibility; mechanical property; morphology; accelerated aging
- Citation
- JOURNAL OF APPLIED POLYMER SCIENCE, v.127, no.2, pp.1032 - 1037
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED POLYMER SCIENCE
- Volume
- 127
- Number
- 2
- Start Page
- 1032
- End Page
- 1037
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/104194
- DOI
- 10.1002/app.37504
- ISSN
- 0021-8995
- Abstract
- The effects of maleic anhydride-grafted styrene-ethylene-butylene-styrene copolymer (SEBS-g-MAH) on the mechanical and morphological properties of polypropylene (PP) and poly(acrylonitrile-butadiene-styrene) (ABS) blends were investigated. Based on mechanical properties, including impact and tensile strengths, the PP/ABS (70/30) blends containing SEBS-g-MAH showed improved impact strength with minimal loss of tensile strength. As determined from morphological studies of the PP/ABS blends, addition of SEBS-g-MAH decreased PP/ABS blend droplet size more than the addition of SEBS. Additionally, the effects of SEBS-g-MAH and SEBS on the mechanical and morphological properties of the PP/ABS (70/30) blends were investigated during accelerated aging in an oven at 90 degrees C for 72 h (one cycle). The impact strength of the PP/ABS (70/30) blends with SEBS-g-MAH (7 phr) decreased less than 10% after five cycles, but blends with SEBS (7 phr) and blends without compatibilizer decreased as much as 37%. The tensile strengths of the PP/ABS (70/30) blends after accelerated aging indicated a trend similar to that of the impact strength. The morphological studies indicated no significant changes in the PP/ABS (70/30) blends with SEBS-g-MAH; however, many cavities and damages were observed in the blend with SEBS. The above results suggest that SEBS-g-MAH acts as an impact modifier and as a good compatibilizer in the PP/ABS (70/30) blends. (C) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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