Journal
POLYMER
Volume 160, Issue -, Pages 265-271Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2018.11.048
Keywords
Polypropylene; Oyster shell powder; Maleic anhydride; Compatibility; Antibacterial; Cytotoxicity
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Funding
- Wuliangye Group Co. Ltd.
- National Natural Science Foundation of China
- Ratchadapisek Sompote Fund for Postoctoral Fellowship (Chulalongkon University)
- Sichuan Province Science and Technology Support Program [19CXRC0081]
- Zigong City Science and Technology office [2017XC16]
- National Science Council (Taipei City, Taiwan, R.O.C.) [MOST 103-2622-E-244 -001 -CC3]
- Apex Nanotek Co. Ltd.
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We report herein new biocomposites prepared from thermally treated oyster shell powder (TTOSP) and modified polypropylene (PP). Untreated and heat-treated OSP are examined to determine which of them is more effective as a bactericidal agent that can be incorporated into a modified PP to prepare biocomposites. The results of TGA and SEM indicate poor compatibility between PP and biocomposites containing more than 0.5 wt% TTOSP. A quantitative analysis reveals that TTOSP can impart antibacterial activity. MTT assay tests on the biocomposites reveal that the relative growth rates of L929 fibroblast cells increase with the TTOSP content, indicating that the biocomposites exhibit no cytotoxicity. The results from this study suggest that a TTOSP content of as low as 0.5 wt% is sufficient to improve the thermostability and tensile property of PP.
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