废弃棉织物微晶纤维素/聚乳酸复合薄膜的制备与性能研究
Preparation and Properties Study of Waste Cotton Microcrystalline Cellulose/Polylactic Acid Composite Films
陈超 1李荣国 2黄山 2姜晓雪 3靳晓曼 3张洁瑞 3杨莉3
作者信息
- 1. 陕西省烟草专卖局,陕西 西安 710061
- 2. 陕西省烟草公司西安市公司,陕西 西安 710061
- 3. 长安大学水利与环境学院,陕西 西安 710064
- 折叠
摘要
以废弃棉织物作为微晶纤维素(MCC)来源,将十八胺-密胺树脂(OMF)疏水化改性得到的OMF-MCC作为增强材料,制备废弃棉织物微晶纤维素/聚乳酸复合薄膜(OMF-MCC/PLA),并对改性前后的废弃棉织物MCC及OMF-MCC/PLA复合薄膜开展材料表征和力学性能测试.结果表明:废弃棉织物提取的MCC表面光滑,尺寸分布较宽;OMF成功实现了废弃棉织物MCC的疏水化改性,添加OMF-MCC的聚乳酸(PLA)复合薄膜拉伸强度较纯PLA薄膜最大提升了166.6%,断裂伸长率略有下降;OMF-MCC/PLA复合薄膜展现出良好的力学性能.
Abstract
Utilizing waste cotton as a source of microcrystalline cellulose(MCC),octadecylamine-melamine formaldehyde resin(OMF)was employed for hydrophobic modification to obtain OMF-MCC as a reinforcing material for waste cotton microcrystalline cellulose/polylactic acid composite films(OMF-MCC/PLA).Material characterization and mechanical properties tests were conducted on pristine and modified waste cotton MCC and the OMF-MCC/PLA composite films.The results showed that the MCC extracted from waste cotton textiles had a smooth surface with wide size dispersion,and OMF modification increased the hydrophobicity of waste cotton MCC successfully.Compared to the pure PLA films,the tensile strength of the OMF-MCC/PLA composite films was enhanced significantly with the addition of OMF-MCC,maximally increased by 166.6%.The elongation at break of OMF-MCC/PLA composite films only experienced a slight decrease.The obtained OMF-MCC/PLA composite films demonstrated excellent mechanical properties.
关键词
聚乳酸/废弃棉织物/微晶纤维素/力学性能Key words
Polylactic acid/Waste cotton/Microcrystalline cellulose/Mechanical properties引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据