Enhanced thermal stability, toughness, and electrical conductivity of carbon nanotube-reinforced biodegradable poly(lactic acid)/poly(ethylene oxide) blend-based nanocomposites

被引：40
作者：
Behera, Kartik [1 ]
Chang, Yen-Hsiang [2 ,3 ]
Yadav, Mithilesh [1 ,4 ]
Chiu, Fang-Chyou [1 ,2 ]
机构：
[1] Chang Gung Univ, Dept Chem & Mat Engn, Taoyuan 333, Taiwan
[2] Chang Gung Mem Hosp, Dept Gen Dent, Taoyuan 333, Taiwan
[3] Chang Gung Univ, Grad Inst Dent & Craniofacial Sci, Taoyuan 333, Taiwan
[4] VBS Purrrvanchal Univ, Prof Rajendra Singh Inst Phys Sci Study & Res, Dept Chem, Jaunpur 222002, UP, India
来源：
POLYMER | 2020年 / 186卷
关键词：
Poly(lactic acid); Blend; Nanocomposites; Thermal properties; Electrical property; MECHANICAL-PROPERTIES; MOLECULAR-WEIGHT; CRYSTALLIZATION BEHAVIOR; PHASE MORPHOLOGY; POLYLACTIC ACID; TEMPERATURE; SUCCINATE-CO-L-LACTATE); POLY(L-LACTIDE); COMPOSITES; DISPERSION;
D O I：
10.1016/j.polymer.2019.122002
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Carbon nanotube (CNT) was incorporated into the miscible poly(lactic acid)/poly(ethylene oxide) (PLA/PEO) blend to successfully fabricate biodegradable nanocomposites. Scanning electron microscope images revealed the well dispersion of as-received CNT within the blend through the melt-mixing process. Thermogravimetric analysis showed that the CNT significantly improved the thermal stability of the blend (up to 68 degrees C increase at 3-phr CNT addition compared to the blend at 10 wt% loss) in air. Differential scanning calorimetry data showed the nucleation effect of CNT on the crystallization of individual PLA and PEO; the presence of CNT increased the melting temperature of PLA crystals. Measurement of rheological behavior confirmed the formation of CNT (pseudo-)network structure in the composites. The impact strength of the composite with 3-phr CNT loading was three times higher than that of the blend. The electrical resistivity of the blend reduced by up to nine orders of magnitude at 3-phr CNT loading. The electrical and rheological percolation thresholds were both achieved at 1-phr CNT loading for the nanocomposites.
引用
收藏
页数：12
相关论文
共 46 条
[1]   Preparation and properties of the biodegradable graded blend of POly(L-lactic acid) and poly(ethylene oxide) [J].
Agari, Yasuyuki ;
Sakai, Kiyofumi ;
Kano, Yosikazu ;
Nomura, Ryoki .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2007, 45 (21) :2972-2981
[2]   Enhanced vapor transport in membrane distillation via functionalized carbon nanotubes anchored into electrospun nanofibres [J].
An, Alicia Kyoungjin ;
Lee, Eui-Jong ;
Guo, Jiaxin ;
Jeong, Sanghyun ;
Lee, Jung-Gil ;
Ghaffour, Noreddine .
SCIENTIFIC REPORTS, 2017, 7
[3]   Kinetics of phase change I - General theory [J].
Avrami, M .
JOURNAL OF CHEMICAL PHYSICS, 1939, 7 (12) :1103-1112
[4]   Graphene Nanoplatelet-Reinforced Poly(vinylidene fluoride)/High Density Polyethylene Blend-Based Nanocomposites with Enhanced Thermal and Electrical Properties [J].
Behera, Kartik ;
Yadav, Mithilesh ;
Chiu, Fang-Chyou ;
Rhee, Kyong Yop .
NANOMATERIALS, 2019, 9 (03)
[5]   Thermal properties, phase morphology and stability of biodegradable PLA/PBSL/HAp composites [J].
Behera, Kartik ;
Sivanjineyulu, Veluri ;
Chang, Yen-Hsiang ;
Chiu, Fang-Chyou .
POLYMER DEGRADATION AND STABILITY, 2018, 154 :248-260
[6]   Characterization of poly(lactic acid)s with reduced molecular weight fabricated through an autoclave process [J].
Behera, Kartik ;
Chang, Yen-Hsiang ;
Chiu, Fang-Chyou ;
Yang, Jen-Chang .
POLYMER TESTING, 2017, 60 :132-139
[7]   Poly(lactic acid)/Poly(ethylene glycol) Blends: Mechanical, Thermal And Morphological Properties [J].
Bijarimi, M. ;
Ahmad, S. ;
Rasid, R. ;
Khushairi, M. A. ;
Zakir, M. .
PROCEEDINGS OF THE 5TH INTERNATIONAL CONGRESS IN ADVANCES IN APPLIED PHYSICS AND MATERIALS SCIENCE CONGRESS & EXHIBITION (APMAS '15), 2016, 1727
[8]   Morphological development and enhancement of thermal, mechanical, and electronic properties of thermally exfoliated graphene oxide-filled biodegradable polylactide/poly(ε-caprolactone) blend composites [J].
Botlhoko, Orebotse Joseph ;
Ramontja, James ;
Ray, Suprakas Sinha .
POLYMER, 2018, 139 :188-200
[9]   The Effects of Melt Annealing and Counterpart's Molecular Weight on the Thermal Properties and Phase Morphology of Poly(L-lactide)-Based Blends [J].
Chiu, Fang-Chyou ;
Kan, Chin-Yu ;
Yang, Jen-Chang .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2009, 47 (15) :1497-1510
[10]   Plasticization of poly(lactic acid) (PLA) through chemical grafting of poly(ethylene glycol) (PEG) via in situ reactive blending [J].
Choi, Kyung-man ;
Choi, Myeon-Cheon ;
Han, Dong-Hun ;
Park, Tae-Sung ;
Ha, Chang-Sik .
EUROPEAN POLYMER JOURNAL, 2013, 49 (08) :2356-2364
12345