Sandwich-Structured, Hydrophobic, Nanocellulose-Reinforced Polyvinyl Alcohol as an Alternative Straw Material

被引:21
作者
Chou, Chun-Tu [1 ]
Shi, Shih-Chen [1 ]
Chen, Chih-Kuang [2 ]
机构
[1] Natl Cheng Kung Univ NCKU, Dept Mech Engn, Tainan 70101, Taiwan
[2] Natl Sun Yat Sen Univ, Dept Mat & Optoelect Sci, Kaohsiung 80424, Taiwan
关键词
sandwich structure; hydrophobic; polyvinyl alcohol; cellulose; straw; PLA BLOCK-COPOLYMER; POLY(VINYL ALCOHOL); MECHANICAL-PROPERTIES; ACID-HYDROLYSIS; ELASTIC-MODULUS; CELLULOSE; POLYMERS; BLENDS; FTIR;
D O I
10.3390/polym13244447
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
An environmentally friendly, hydrophobic polyvinyl alcohol (PVA) film was developed as an alternative to commercial straws for mitigating the issue of plastic waste. Nontoxic and biodegradable cellulose nanocrystals (CNCs) and nanofibers (CNFs) were used to prepare PVA nanocomposite films by blade coating and solution casting. Double-sided solution casting of polyethylene-glycol-poly(lactic acid) (PEG-PLA) + neat PLA hydrophobic films was performed, which was followed by heat treatment at different temperatures and durations to hydrophobize the PVA composite films. The hydrophobic characteristics of the prepared composite films and a commercial straw were compared. The PVA nanocomposite films exhibited enhanced water vapor barrier and thermal properties owing to the hydrogen bonds and van der Waals forces between the substrate and the fillers. In the sandwich-structured PVA-based hydrophobic composite films, the crystallinity of PLA was increased by adjusting the temperature and duration of heat treatment, which significantly improved their contact angle and water vapor barrier. Finally, the initial contact angle and contact duration (at the contact angle of 20 degrees) increased by 35% and 40%, respectively, which was a significant increase in the service life of the biodegradable material-based straw.
引用
收藏
页数:24
相关论文
共 56 条
[1]   Nanocellulose in bio-based food packaging applications [J].
Azeredo, Henriette M. C. ;
Rosa, Morsyleide F. ;
Mattoso, Luiz Henrique C. .
INDUSTRIAL CROPS AND PRODUCTS, 2017, 97 :664-671
[2]   PEG-PLA block copolymer as potential drug carrier: Preparation and characterization [J].
Ben-Shabat, Shimon ;
Kumar, Neeraj ;
Domb, Abraham J. .
MACROMOLECULAR BIOSCIENCE, 2006, 6 (12) :1019-1025
[3]   NIR, DSC, and FTIR as quantitative methods for compositional analysis of blends of polymers obtained from recycled mixed plastic waste [J].
Camacho, W ;
Karlsson, S .
POLYMER ENGINEERING AND SCIENCE, 2001, 41 (09) :1626-1635
[4]   Cellulose nanofibrils/polyvinyl acetate nanocomposite adhesives with improved mechanical properties [J].
Chaabouni, Ons ;
Boufi, Sami .
CARBOHYDRATE POLYMERS, 2017, 156 :64-70
[5]   Biodegradation of poly (vinyl alcohol) based materials [J].
Chiellini, E ;
Corti, A ;
D'Antone, S ;
Solaro, R .
PROGRESS IN POLYMER SCIENCE, 2003, 28 (06) :963-1014
[6]   Non-isothermal crystallization kinetics, thermal degradation behavior and mechanical properties of poly(lacticacid)/MOF composites prepared by melt-blending methods [J].
Dai, Xiu ;
Cao, Yu ;
Shi, Xiaowei ;
Wang, Xinlong .
RSC ADVANCES, 2016, 6 (75) :71461-71471
[7]   Anisotropy of the elastic properties of crystalline cellulose Iβ from first principles density functional theory with Van der Waals interactions [J].
Dri, Fernando L. ;
Hector, Louis G., Jr. ;
Moon, Robert J. ;
Zavattieri, Pablo D. .
CELLULOSE, 2013, 20 (06) :2703-2718
[8]   The shape and size distribution of crystalline nanoparticles prepared by acid hydrolysis of native cellulose [J].
Elazzouzi-Hafraoui, Samira ;
Nishiyama, Yoshiharu ;
Putaux, Jean-Luc ;
Heux, Laurent ;
Dubreuil, Frdric ;
Rochas, Cyrille .
BIOMACROMOLECULES, 2008, 9 (01) :57-65
[9]   Plastic Pollution in the World's Oceans: More than 5 Trillion Plastic Pieces Weighing over 250,000 Tons Afloat at Sea [J].
Eriksen, Marcus ;
Lebreton, Laurent C. M. ;
Carson, Henry S. ;
Thiel, Martin ;
Moore, Charles J. ;
Borerro, Jose C. ;
Galgani, Francois ;
Ryan, Peter G. ;
Reisser, Julia .
PLOS ONE, 2014, 9 (12)
[10]   The impact of debris on marine life [J].
Gall, S. C. ;
Thompson, R. C. .
MARINE POLLUTION BULLETIN, 2015, 92 (1-2) :170-179