Physical Properties, Crystallization, and Thermal/Hydrolytic Degradation of Poly(L-lactide)/Nano/Micro-Diamond Composites

被引:12
作者
Tsuji, Hideto [1 ]
Aratani, Toshiyuki [1 ]
Takikawa, Hirofumi [2 ]
机构
[1] Toyohashi Univ Technol, Grad Sch Engn, Dept Environm & Life Sci, Toyohashi, Aichi 4418580, Japan
[2] Toyohashi Univ Technol, Grad Sch Engn, Dept Elect & Elect Informat, Toyohashi, Aichi 4418580, Japan
关键词
crystallization; degradation; nano; micro-diamond; poly(L-lactic acid); thermal properties; ACID)/GRAPHENE OXIDE NANOCOMPOSITES; CARBON NANOTUBES; NONISOTHERMAL CRYSTALLIZATION; ISOTHERMAL CRYSTALLIZATION; BIODEGRADABLE POLYESTERS; ELECTRICAL-PROPERTIES; PHASE-CHANGE; LACTIC-ACID; GRAPHENE; KINETICS;
D O I
10.1002/mame.201200397
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effects of incorporated nano/micro-diamond (NMD) on the physical properties, crystallization, thermal/hydrolytic degradation of poly(L-lactic acid) (PLLA) were investigated for a wide NMD concentration range of 0-10wt.-%. Incorporated NMD increased the tensile modulus and strength of PLLA films but decreased the elongation at break of PLLA films. Incorporated NMD accelerated the crystallization of PLLA during heating and cooling and increased the absolute crystallization enthalpy of PLLA films (except for an NMD concentration of 10wt.-% during cooling) but did not alter the crystallization mechanism. Incorporated NMD increased and decreased the thermal stability of PLLA films for NMD concentrations of 1-5 and 10wt.-%, respectively, and increased the hydrolytic degradation resistance of PLLA films.
引用
收藏
页码:1149 / 1159
页数:11
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