期刊
FIBERS AND POLYMERS
卷 13, 期 2, 页码 217-223出版社
KOREAN FIBER SOC
DOI: 10.1007/s12221-012-0217-6
关键词
Ramie fiber; PLA; Biocomposite; Chemical surface modification; Physical properties
资金
- National Research Foundation of Korea (KRF)
- Ministry of Education, Science and Technology [2009-0075670]
- National Research Foundation of Korea [2009-0075670] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The chemical and morphological properties of ramie fibers treated by chemical surface modification were examined with Fourier transform infrared (FT-IR) spectroscopy. The mechanical and thermal decomposition properties were evaluated with respect to tensile strength, tensile modulus and thermogravimetric analysis (TGA). Surface morphological changes were investigated with scanning electron microscopy (SEM). Finally, the capabilities of composites reinforced with various chemically treated fibers were analyzed by investigating tensile and impact strengths. Additionally, the thermal mechanical properties of the composites were investigated with thermal mechanical analysis (TMA). Based on the results of these analyses, we concluded that pectin, lignin and hemicellulose were removed and thermal stability was increased with chemical treatments. The composites reinforced with ramie fiber showed better properties compared with pure PLA matrix with respect to tensile and impact strengths. The peroxide-treated fiber composite had the smallest thermal expansion.
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