PBAT/PLLA共混薄膜的热学、力学及阻透性能

doi:10.19491/j.issn.1001-9278.2019.09.007

中国塑料 ›› 2019, Vol. 33 ›› Issue (9): 41-45,139.DOI: 10.19491/j.issn.1001-9278.2019.09.007

PBAT/PLLA共混薄膜的热学、力学及阻透性能

王莉梅^1,2，图布新¹，于一凡¹，卢月圆¹，春艳¹，董同力嘎^1*

1.内蒙古农业大学食品科学与工程学院 2.内蒙古自治区农牧业科学院

收稿日期:2019-04-18 修回日期:2019-06-05 出版日期:2019-09-26 发布日期:2019-10-25
基金资助:
内蒙古自治区草原英才滚动支持项目（2017）；内蒙古自治区科技创新引导奖励资金项目(2016）

Thermal, Mechanical and Barrier Properties of PBAT/PLLA Blend Films

WANG Limei^1,2, TU Buxin1, YU Yifan¹, LU Yueyuan¹, CHUN Yan¹, DONG Tungalag^1*

1. College of Food Science and Engineering,Inner Mongolia Agricultural University 2. Inner Mongolia Academy of Agricultural ＆Animal Husbandry Sciences

Received:2019-04-18 Revised:2019-06-05 Online:2019-09-26 Published:2019-10-25

摘要/Abstract

摘要： 采用熔融共混法制备聚对苯二甲酸己二酸丁二醇酯（PBAT）和L聚乳酸（PLLA）共混薄膜，探讨不同PLLA添加量（质量分数分别为10 %、20 %、30 %）对共混薄膜力学性能、热学性能、气体阻透性能的影响。结果表明，PBAT和PLLA共混属于不相容体系；随着PLLA的添加，共混薄膜的O2和CO2透过性能逐渐降低；当PLLA含量增加到30 %时，O2 透过系数(PO2)和CO2透过系数(PCO2)分别较PBAT薄膜降低了34.2 %和70.8 %，CO2/O2透过比（PCO2/PO2）由纯PBAT的10.20降低为4.52，提高了薄膜阻透性能；PLLA的添加改善了PBAT极易变形变曲现象。

关键词: 聚对苯二甲酸-己二酸-丁二醇酯, L-聚乳酸, 共混薄膜, 气体透过性能

Abstract: The PBAT/PLLA blend films were prepared by melt extrusion, and the effect of PLLA content on the mechanical, thermal and gas barrier properties of blend films were investigated. The results indicated that the PBAT/PLLA blend system was thermodynamically incompatible. The blend films exhibited a decrease in permeation coefficients of O2 and CO2 with an increase of PLLA content. When 30 wt% of PLLA was incorporated, the blend films achieved the permeation coefficients of 34.2 % and 70.8 %, for O2 and CO2, respectively. The two values were lower than those of pure PBAT films. The permeation coefficient radio of O2/CO2 was found to decrease from 10.20 to 4.52, indicating that the barrier properties of blend films were significantly improved. The addition of PLLA could effectively prevent the deformation and warpage of blends films.

Key words: poly(butylene adipateco-terephthalate); poly(L-lactic acid;blend films, gas permea-bility

中图分类号:

TB383.2

王莉梅, 图布新, 于一凡, 卢月圆, 春艳, 董同力嘎. PBAT/PLLA共混薄膜的热学、力学及阻透性能[J]. 中国塑料, 2019, 33(9): 41-45,139.

WANG Limei, TU Buxin, YU Yifan, LU Yueyuan, CHUN Yan, DONG Tungalag. Thermal, Mechanical and Barrier Properties of PBAT/PLLA Blend Films[J]. China Plastics, 2019, 33(9): 41-45,139.

参考文献

[1] 周志斌, 刘跃军, 崔玲娜,等. PLA/PBAT/PCL生物降解复合材料的制备及其性能分析[J].功能材料,2016, 47(5):231-237.
[2] 余洁.可生物降解PLA/PBAT/PHB共混材料的制备与可纺性研究[D]. 杭州: 浙江理工大学, 2016.
[3] Mohapatra A K, Mohanty S, Nayak S K. Study of Thermo-Mechanical and Morphological Behaviour of Biodegradable PLA/PBAT/Layered silicate Blend Nanocomposites[J]. JournalofPolymers&theEnvironment, 2014, 22(3):398-408.
[4] 司鹏. PLA/PBAT薄膜的制备及其降解性能研究[D].江苏科技大学,2016.
[5] 邹阳雪.木质素/PBAT/PES复合材料的制备及性能研究[D].西南科技大学,2016.
[6] 王治洲,李晓芳,宋树鑫,等.PCL对PBAT薄膜气体透过率的影响[J].塑料科技,2017,45(11):56-61.
[7] 宁平,陈明月,肖运鹤.淀粉填充改性PBAT的结构与性能研究[J].化工新型材料,2010,38(07):116-119.
[8] 王香云. PBAT/改性纤维素复合材料的制备与性能研究[D].新疆大学,2016.
[9] Ren P G, Liu X H, Ren F, et al. Biodegradable graphene oxidenanosheets/poly-(butyleneadipate-co-Tereph-thalate) nanocomposite film with enhanced gas and water vapor barrier properties[J]. Polymer Testing, 2016, 58: 173-180.
[10] 周志斌. 无机纳米SiO_2填充PLA/PBAT复合体系的制备及流变性能研究[D].湖南工业大学,2016.
[11] 杨冰,张自强,张以河,等.PBAT/PLA薄膜的制备及性能研究[J].中国塑料,2015,29(03):45-50.
[12]齐迎珍,邹俊,徐海青.PBAT/PLA复合材料的制备及其微球发泡行为研究[J].塑料科技,2018,46(10):15-20.
[13]陈小英,徐鼐,庞素娟,等.PLA增强改性PBAT共混物的制备及性能研究[J].化工新型材料, 2016,44 (06):122-125.
[14] 潘宏伟. 聚对苯二甲酸丁二醇-co-己二酸丁二醇酯(PBAT)生物降解膜的制备及性质研究[D].长春工业大学,2016.
[15]黄秀龙,张华,季欣,等.滑石粉对PLA/PBAT共混物非等温结晶行为的影响[J].塑料科技, 2018,46 (10): 45-
50.
[16] 王莉梅,王治洲,刘孟禹,等.PBAT/EVOH共混薄膜的制备及其包装特性[J].塑料科技,2018,6(09):99-103.
[17] 葛铁军, 李英明, 杨雪. PBS/EVOH共混材料的阻透性能研究[J]. 塑料科技, 2013, 41(11). 46-49.
[18] 杜峰.PLA/POE共混物结构与性能研究[J].中国塑料,2011,25(11):39-42.
[19] Wei T Y，Pang S J，Xu N，et al. Crystallization behavior and isothermal crystallization kinetics of PLLA blended with ionic liquid，1-butyl-3-methylimidazolium dibutylphosphate［J］. J.Appl.Polym Sci.,2015, 132(3): 1-11
[20] Tsuji H.Properties and morphologies of poly(L-lactide): 1.Annealing condition effects on properties and morphologies of poly(L-lactide)［J］.Polymer，1995，36: 2709-2716．
[21] Park S D,Todo M,Arakawa K,et al. Effect of crystallinity and load-ing-rate on mode I fracture behavior of poly(lactic acid)［J］. Polymer,2006,47:1357-1363
[22] 于振菲,王羽,梁晓红,等.物理老化过程对聚乳酸阻隔性能的影响[J].高分子材料科学与工程,2015, 31(09):82-86.

PBAT/PLLA共混薄膜的热学、力学及阻透性能

Thermal, Mechanical and Barrier Properties of PBAT/PLLA Blend Films

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	姜妞徐梓航胡跃鑫韩向艳刘忠全. 相对分子质量分布对双峰聚乙烯薄膜树脂性能的影响[J]. 中国塑料, 2019, 33(11): 12-17.
[2]	何神涛, 徐珍珍, 张朝辉. PVA与丁二酸酯化淀粉共混膜的力学性能[J]. 中国塑料, 2019, 33(10): 40-45.