Water Absorption of Poly(lactic acid) Nanocomposites: Effects of Nanofillers and Maleated Rubbers

被引：16
作者：
Chow, W. S. [1 ]
Leu, Y. Y. [1 ]
Ishak, Z. A. Mohd [1 ]
机构：
[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Penang, Malaysia
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2014年 / 53卷 / 08期
关键词：
Maleated rubber; Nanofillers; Poly(lactic acid); Water absorption; MORPHOLOGICAL PROPERTIES; THERMAL-PROPERTIES; G-MAH; POLYPROPYLENE; DEGRADATION; COMPOSITES; STARCH;
D O I：
10.1080/03602559.2014.886054
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Injection-molded poly(lactic acid)/organo-montmorillonite (PLA/OMMT) and poly(lactic acid)/nano-precipitated calcium carbonate (PLA/NPCC) were exposed to a water absorption test at 30 degrees C for 70 days. The analysis was focused on the water diffusion kinetics and impact strength changes induced by the hydrolysis. The diffusion exponent (n) values of all the PLA samples are less than 0.5, indicating the Fickian diffusion model (case I) is obeyed. Adding nanofillers and maleated rubbers (SEBS-g-MAH or EPR-g-MAH) increased equilibrium moisture content but decreased diffusion coefficient values of PLA. The recoverability and retention-ability of the maleated rubbers toughened PLA/OMMT and PLA/NPCC after water absorption are excellent.
引用
收藏
页码：858 / 863
页数：6
相关论文
共 26 条
[1]   An overview of polylactides as packaging materials [J].
Auras, R ;
Harte, B ;
Selke, S .
MACROMOLECULAR BIOSCIENCE, 2004, 4 (09) :835-864
[2]   Toughening of Polylactic Acid Nanocomposites: A Short Review [J].
Balakrishnan, Harintharavimal ;
Hassan, Azman ;
Imran, Muhammad ;
Wahit, Mat Uzir .
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2012, 51 (02) :175-192
[3]   Ethylene Copolymer Toughened Polylactic Acid Nanocomposites [J].
Balakrishnan, Harintharavimal ;
Masoumi, Iman ;
Yussuf, A. A. ;
Imran, Muhammad ;
Hassan, Azman ;
Wahit, Mat Uzir .
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2012, 51 (01) :19-27
[4]   Mechanical and hygrothermal aging study on polystyrene/organo-montmorillonite nanocomposites [J].
Chow, W. S. ;
Teoh, J. K. ;
Lim, L. Y. .
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2008, 47 (10) :1040-1045
[5]   Effect of EPM-g-MAH on the flexural and morphological properties of poly(lactic acid)/organo-montmorillonite nanocomposites [J].
Chow, W. S. ;
Lok, S. K. .
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS, 2008, 21 (03) :265-277
[6]   Effects of SEBS-g-MAH on the properties of injection moulded poly(lacticacid)/nano-calcium carbonate composites [J].
Chow, W. S. ;
Leu, Y. Y. ;
Ishak, Z. A. Mohd .
EXPRESS POLYMER LETTERS, 2012, 6 (06) :503-510
[7]   Thermal properties of poly(lactic acid)/organo-montmorillonite nanocomposites [J].
Chow, W. S. ;
Lok, S. K. .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2009, 95 (02) :627-632
[8]   Water absorption and hygrothermal aging study on organomontmorillonite reinforced polyamide 6/polypropylene nanocomposites [J].
Chow, WS ;
Abu Bakar, A ;
Ishak, ZAM .
JOURNAL OF APPLIED POLYMER SCIENCE, 2005, 98 (02) :780-790
[9]   Compatibilizing effect of maleated polypropylene on the mechanical properties and morphology of injection molded polyamide 6/polypropylene/organoclay nanocomposites [J].
Chow, WS ;
Ishak, ZAM ;
Karger-Kocsis, J ;
Apostolov, AA ;
Ishiaku, US .
POLYMER, 2003, 44 (24) :7427-7440
[10]   Effect of maleic anhydride-grafted ethylene-propylene rubber on the mechanical, rheological and morphological properties of organoclay reinforced polyamide 6/polypropylene nanocomposites [J].
Chow, WS ;
Abu Bakar, A ;
Ishak, ZAM ;
Karger-Kocsis, J ;
Ishiaku, US .
EUROPEAN POLYMER JOURNAL, 2005, 41 (04) :687-696
123