Effect of different modified starches on physical, morphological, thermomechanical, barrier and biodegradation properties of cassava starch and polybutylene adipate terephthalate blend film

淀粉 己二酸 生物降解 材料科学 结晶度 化学工程 热塑性塑料 挤压 复合材料 高分子化学 有机化学 化学 工程类
作者
Phanwipa Wongphan,Theeraphorn Panrong,Nathdanai Harnkarnsujarit
出处
期刊:Food Packaging and Shelf Life [Elsevier]
卷期号:32: 100844-100844 被引量:85
标识
DOI:10.1016/j.fpsl.2022.100844
摘要

Modified starch enhanced the compatibility and modified the properties of thermoplastic starch (TPS) and polybutylene adipate terephthalate (PBAT) biodegradable films. Native (NS), acetylated (AS), octenyl-succinated (OS) and hydroxypropylated (HS) starch were compounded with PBAT via extrusion. PBAT/TPS (40/60 and 50/50 ratios) blend films were produced by blown-film extrusion and characterized for morphology, crystallinity, thermomechanical properties, mechanical and barrier properties. Topographic and scanning electron micrographs showed diverse dispersion and morphologies of starch granules depending on hydrophobicity that governed interface exposure between incompatible polymers. Hydrophilic starch formed phase separated fibrous-like networks entangled in PBAT at higher TPS ratios. Hydrophobic OS starch improved compatibility and interaction with PBAT, greatly modifying mechanical and barrier properties (82–89%). TPS slightly increased α-relaxation temperature and modified arrangements of aromatic structures in PBAT, involving C-H and C-O bonding, subsequently influencing crystallinity of PBAT and the starch phase. Biodegradation of the blend films was dependent on hydrophilicity of starch, giving the fastest degradation in NS and HS. Findings indicated that hydrophobically modified starch improved compatibility with PBAT for biodegradable packaging, while film properties were highly dependent on the morphology of blend matrices.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
2秒前
嘀嘀哒哒发布了新的文献求助10
3秒前
3秒前
Halo完成签到,获得积分10
4秒前
铲铲完成签到,获得积分10
4秒前
6秒前
7秒前
在水一方应助嘀嘀哒哒采纳,获得10
7秒前
桑梓发布了新的文献求助10
8秒前
Tony12完成签到,获得积分10
9秒前
罗渲童发布了新的文献求助10
9秒前
10秒前
调皮乐荷发布了新的文献求助100
10秒前
11秒前
完美世界应助温婉的惜文采纳,获得10
11秒前
铲铲发布了新的文献求助10
11秒前
LEE完成签到,获得积分10
12秒前
12秒前
12秒前
13秒前
13秒前
满意的雪枫完成签到 ,获得积分10
14秒前
英俊的铭应助洗剪吹采纳,获得10
15秒前
16秒前
17秒前
11应助shenwei采纳,获得20
17秒前
17秒前
17秒前
18秒前
weirdo发布了新的文献求助10
19秒前
20秒前
研友_VZG7GZ应助xiaobai采纳,获得10
20秒前
秋名山流川枫完成签到,获得积分10
20秒前
王冉冉发布了新的文献求助10
21秒前
讷言敏行完成签到 ,获得积分10
21秒前
byecslx发布了新的文献求助10
21秒前
dxh发布了新的文献求助10
23秒前
冲塔亚德发布了新的文献求助10
23秒前
薄荷小姐完成签到 ,获得积分10
23秒前
bkagyin应助闪闪妍采纳,获得10
24秒前
高分求助中
Sustainability in Tides Chemistry 2800
Kinetics of the Esterification Between 2-[(4-hydroxybutoxy)carbonyl] Benzoic Acid with 1,4-Butanediol: Tetrabutyl Orthotitanate as Catalyst 1000
The Young builders of New china : the visit of the delegation of the WFDY to the Chinese People's Republic 1000
Rechtsphilosophie 1000
Very-high-order BVD Schemes Using β-variable THINC Method 568
Chen Hansheng: China’s Last Romantic Revolutionary 500
Mantiden: Faszinierende Lauerjäger Faszinierende Lauerjäger 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3138804
求助须知:如何正确求助?哪些是违规求助? 2789745
关于积分的说明 7792532
捐赠科研通 2446127
什么是DOI,文献DOI怎么找? 1300876
科研通“疑难数据库(出版商)”最低求助积分说明 626066
版权声明 601079