Influence of Compatibilizing Agent Molecular Structure on the Mechanical Properties of Phosphate Glass Fiber-Reinforced PLA Composites

被引：35

作者：

Haque, Papia ^{[1
]}

Barker, Ian A. ^{[1
,2
]}

Parsons, Andrew ^{[1
]}

Thurecht, Kristofer J. ^{[2
,3
,4
]}

Ahmed, Ifty ^{[1
]}

Walker, Gavin S. ^{[1
]}

Rudd, Christopher D. ^{[1
]}

Irvine, Derek J. ^{[1
,2
]}

机构：

[1] Univ Nottingham, Fac Engn, Nottingham NG7 2RD, England

[2] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England

[3] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia

[4] Univ Queensland, Ctr Magnet Resonance, Brisbane, Qld 4072, Australia

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2010年 / 48卷 / 14期

基金：

英国工程与自然科学研究理事会;

关键词：

biocompatibility; composites; fibers; interfaces; MALDI; polyesters; MALDI-TOF-MS; DEGRADATION; KINETICS; ION;

D O I：

10.1002/pola.24086

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Eight compatibilizing agents were studied to investigate their effect on the quality of the interface between a phosphate glass fiber and a poly(lactic acid) (PLA) matrix. After application of the agents via dip-coating, the fibers were Soxhlet extracted to remove any unreacted compatibilizer. To assess the interface quality, single fiber tensile tests of treated fibers and interfacial shear strengths (IFSS) of single fiber composites (SFC) were assessed. Of the agents tested, Glycerol-2-phosphate disodium pentahydrate (GP) and low molecular weight PLA with a sodium salt terminal group (PLA-Na) showed the highest IFSS values, which were significantly higher than those of the control. Oligomeric PLA with a carboxylic acid end group and alendronate sodium trihydrate also showed an improvement over the control fibers. The hydrolytic degradation of these single fiber composites was studied over 7 days in water at 37 degrees C and a significant decrease in IFSS was observed in all cases, with the treated samples dropping to the level of the control. TGA and XPS analysis of the sized fibers showed that GP and PLA-Na had been applied successfully to the fiber surface. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 3082-3094, 2010

引用

页码：3082 / 3094

页数：13

共 42 条

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