Polylactide/lignin blends Effects of processing conditions on structure and thermo-mechanical properties

被引：26
|
作者：
Cicala, Gianluca [1 ,2 ]
Saccullo, Giuseppe [1 ]
Blanco, Ignazio [1 ,2 ]
Samal, Sneha [4 ,5 ]
Battiato, Salvatore [3 ]
Dattilo, Sandro [3 ]
Saake, Bodo [6 ]
机构：
[1] Univ Catania, Dept Civil Engn & Architecture, Viale Andrea Doria 6, I-95125 Catania, Italy
[2] INSTM UdR Catania, Viale Andrea Doria 6, I-95125 Catania, Italy
[3] CNR, IPCB, UOS Catania, Via Gaifami 18, I-95126 Catania, Italy
[4] VUTS As, Ctr Dev Engn Res, Liberec 46001 11, Liberec, Czech Republic
[5] Univ Rennes 1, Inst Phys, Dept Mech, Rennes, France
[6] Univ Hamburg, Chem Wood Technol, Leuschnerstr 91b, D-21031 Hamburg, Germany
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2017年 / 130卷 / 01期
关键词：
Polylactide; Lignin; Degradation; Blends; Thermal stability; LIFE-CYCLE ASSESSMENT; MECHANICAL-PROPERTIES; POLYMER COMPOSITES; LIGNIN; DEGRADATION; STABILITY; INJECTION; CHEMISTRY;
D O I：
10.1007/s10973-017-6253-0
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effect of processing temperature and time on polylactide/lignin blends was evaluated. Two blends, one commercial and one prepared mixing polylactide (PLA) with different lignin contents, were processed at 190 and 170 degrees C for different mixing times. The commercial blend was a blend of PLA with 5 mass% of soda lignin and 15.4 mass% of softwood while, for the laboratory-made PLA/lignin, the content of lignin varied from 10 to 25 mass%. Both the blends showed significant degradation of the mechanical properties when processed at 190 degrees C. The use of lower processing temperature (i.e., 170 degrees C) showed minor degradation on both the blends. The lignin content showed a marked effect on the degradation behavior of the blends for all the processing temperatures tested.
引用
收藏
页码：515 / 524
页数：10
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