PBS/PBAT共混薄膜的热学、力学及阻隔性能研究
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摘要
通过双螺杆挤出流延机组制备了不同配比的聚丁二酸丁二醇酯/聚对苯二甲酸己二酸丁二醇酯(PBS/PBAT)共混薄膜,并对其力学、热学以及气体透过性进行了研究。结果表明:PBAT的加入降低了PBS的结晶度,增强了PBS薄膜柔韧性。PBS/PBAT共混薄膜出现了较为明显的相分离,其最大断裂伸长率达到832.1%。相比于纯PBS薄膜,PBAT的添加进一步提高了薄膜的CO_2、O_2以及水蒸气透过率,CO_2/O_2选择透过比从5.11提高至7.04。
The poly(butylene succinate)/poly(butylene adipate terephthalate)(PBS/PBAT) blend films with different PBAT contents were prepared via a twin screw extruder, and the thermal, mechanical properties and gas permeability there of were studied. The results show that: with the increase of PBAT content, the crystallinity of the PBS/PBAT blend system reduces, and the flexibility of the PBS membrane is enhanced. The phase separation of the PBS/PBAT blend film is obvious. The maximum elongation at break of the blend film reaches 832.1%. The addition of PBAT further increases CO_2, O_2 and water vapor transmission rate, and the CO_2/O_2 selective transmission ratio increases from 5.11 to 7.04, compared with pure PBS film.
The poly(butylene succinate)/poly(butylene adipate terephthalate)(PBS/PBAT) blend films with different PBAT contents were prepared via a twin screw extruder, and the thermal, mechanical properties and gas permeability there of were studied. The results show that: with the increase of PBAT content, the crystallinity of the PBS/PBAT blend system reduces, and the flexibility of the PBS membrane is enhanced. The phase separation of the PBS/PBAT blend film is obvious. The maximum elongation at break of the blend film reaches 832.1%. The addition of PBAT further increases CO_2, O_2 and water vapor transmission rate, and the CO_2/O_2 selective transmission ratio increases from 5.11 to 7.04, compared with pure PBS film.
引文
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[25]颜钰.果品保鲜包装用塑料薄膜的阻隔性能研究[D].西安:西安理工大学,2010.
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[27]云雪艳,刘孟禹,李晓芳,等.PLLA/PBAT单轴拉共混膜的力学性能及气体透过性[J].包装工程,2017,38(13):84-89.
[28]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,2018,46(9):99-103.
[29]刘丽,陈勇,李恕广,等.非对称复合膜支撑层阻力对水蒸气渗透影响的研究[J].膜科学与技术,2000(4):19-24.
[2]吕怀兴,杨彪,许国志.PBS/PBAT共混型全生物降解材料的制备及其性能研究[J].中国塑料,2009,23(8):18-21.
[3]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.
[4]孙桂香,罗勇,陆平晔.生物降解PBS聚酯的改性研究进展[J].高分子通报,2011(2):102-107.
[5]廖才智.生物降解性塑料PBS的研究进展[J].塑料科技,2010,38(7):93-98.
[6]Fortunati Elena,Puglia Debora,Iannoni Antonio,et al.Processing conditions,thermal and mechanical responses of stretchable poly(lactic acid)/poly(butylene succinate)lms[J].Materials,2017,DOI:10.3390/ma10070809.
[7]张贞浴,秦川江,张艳红,等.生物可降解聚丁二酸丁二醇酯的合成及扩链改性[J].黑龙江大学自然科学学报,2005(5):642-645.
[8]Nayak S K.Biodegradable PBAT/starch nanocomposites[J].Journal of Macromolecular Science Part D:Reviews in Polymer Processing,2010,49(14):1 406-1 418.
[9]Muthuraj R,Misra M,Mohanty A K.Binary blends of poly(butylene adipate-co- t e rephthalate) and poly(butylene succinate):A new matrix for biocomposites applications[J].AIP Conference Proceedings,2015,DOI:10.1063/1.4918505.
[10]Kim S,Park S W,Lee K.Fishing performance of environmentally friendly tubular pots made of biodegradable resin(PBS/PBAT)for catching the conger eel Conger Myriaster[J].Fisheries Science,2014,80(5):887-895.
[11]刘晓艳,涂志刚,赵素芬,等.可完全生物降解PBS的共混改性研究进展[J].塑料科技,2014,42(4):92-96.
[12]白久林.PBS膜材料的改性及生物降解性能研究[D].天津:天津科技大学,2017.
[13]刘亚丽,揣成智.PBAT增韧改性交联PBS的性能研究[J].塑料工业,2014,42(11):30-33,59.
[14]孙海滨,唐义祥.生物降解聚丁二酸丁二酯包装材料性能及现状[J].包装世界,2012(5):24-25.
[15]刘卉,李琳,张正君,等.全降解塑料包材--PBS的合成、改性及包装制品的研究进展[J].中国包装,2011,31(8):61-65.
[16]黄锦涛.PLA/PBS共混体系叶片塑化挤出制备及其增容特性研究[D].广州:华南理工大学,2015.
[17]Zaverl M,Valerio O,Misra M,et al.Study of the effect of processing conditions on the co-injection of PBS/PBAT and PTT/PBT blends for parts with increased bio-content[J].Journal of Applied Polymer Science,2014,DOI:10.1002/app.41278.
[18]Manatsittipan S,Kuttiyawong K,Ito K,et al.Effects of molecular weight of chitosan on the biodegradability and thermal properties of polybutylene succinate/chitosan composites[J].Key Engineering Materials,2018,775:26-31.
[19]刘亚丽.聚丁二酸丁二醇酯增韧改性研究[D].天津:天津科技大学,2015.
[20]王治洲,道日娜,徐畅,等.PBAT/PCL可降解气调保鲜膜对双孢菇的保鲜效果[J].食品工业,2018,39(4):118-124.
[21]王羽.适用于圣女果的自发气调保鲜膜制备及保鲜效果的研究[D].呼和浩特:内蒙古农业大学,2016.
[22]梁晓红,于振菲,吴佳鑫,等.单轴拉伸PLLA/PBS共混薄膜的包装特性研究[J].包装工程,2014,35(23):52-57.
[23]Zeng J B,Zhu Q Y,Lu X,et al.From miscible to partially miscible biodegradable double crystalline poly(ethylene succinate)-b-poly(butylene succinate) multiblock copolymers[J].Polymer Chemistry,2012,3(2):399-408.
[24]云雪艳.高韧性、高选择透过性聚乳酸薄膜的制备及其对果蔬的气调保鲜效果[D].呼和浩特:内蒙古农业大学,2017.
[25]颜钰.果品保鲜包装用塑料薄膜的阻隔性能研究[D].西安:西安理工大学,2010.
[26]徐梅林.薄膜阻隔性的决定参数-扩散系数[J].包装世界,2005(2):51-52.
[27]云雪艳,刘孟禹,李晓芳,等.PLLA/PBAT单轴拉共混膜的力学性能及气体透过性[J].包装工程,2017,38(13):84-89.
[28]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,2018,46(9):99-103.
[29]刘丽,陈勇,李恕广,等.非对称复合膜支撑层阻力对水蒸气渗透影响的研究[J].膜科学与技术,2000(4):19-24.