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| Research on Preparing Composite Film by Using Methyl Acryloyl Chloride Modified Lignocresol and Polylactic Acid |
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| DOI：10.11981/j.issn.1000-6842.2017.04.32 |
| Key Words:lignocresol； methyl acryloyl chloride； polylactic acid (PLA)； composite film |
| Fund Project:十三五国家重点研发计划项目（2017YFD0601005）；南京林业大学杰出青年基金(2015-005)。 |
| Author Name | Affiliation | | 徐栋梁 | 南京林业大学轻工科学与工程学院，江苏南京，210037 | | 任 浩* | 南京林业大学轻工科学与工程学院，江苏南京，210037 | | 钱 爽 | 南京林业大学轻工科学与工程学院，江苏南京，210037 | | 郑丽平 | 南京林业大学轻工科学与工程学院，江苏南京，210037 |
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| Abstract: |
| In order to improve the interfacial compatibility of lignocresol and polylactic acid which were used to prepare a composite film, methyl acryloyl chloride was used to modify lignocresol. The improvement of the interface compatibility could improve the mechanical properties of the composite film. The molecular structures of lignocresol and modified lignocresol were analyzed and the mechanical properties of the composite film were tested. The results indicated that methyl acryloyl was successfully grafted onto lignocresol. When the dosage of methacryloyl chloride to lignocresol was 0.5 mL/0.5 g, the result of four times modification was the best. With the increase of the amount of modified lignocresol, the tensile strength of the composite film decreased gradually, but the decrease extent was lower than that of the unmodified lignocresol. The elongation at break of the composite film made with modified lignocresol was much higher than PLA film. With the increase of the amount of modified lignocresol, the elongation at break of composite film increased at first and then was leveling off. Considering the tensile strength and the elongation at break of the composite film, the optimum amount of modified lignocresol was 10%. |
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