| 界面状态对C/PLA复合材料降解特性的影响 |
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| 引用本文： | 万怡灶,王玉林,李来风,周福刚. 界面状态对C/PLA复合材料降解特性的影响[J]. 材料研究学报, 2002, 16(3): 268-272 |
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| 作者姓名： | 万怡灶 王玉林 李来风 周福刚 |
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| 作者单位： | 天津大学;中国科学院理化技术研究所 |
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| 基金项目： | 教育部博士点基金99005606，天津市自然科学基金993602211资助项目. |
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| 摘 要： | 研究了具有不同界面结合特性的两种复合材料在体外降解过程中吸水率，质量损失，宏观力学性能与降解时间的关系。结果表明，提高复合材料的界面结合强度可减小C／PLA复合材料的吸水率和质量损失，降低复合材料力学性能（弯曲强度，弯曲模量和剪切强度）和界面结合强度下降的速度，界面结合强度的提高对C／PLA复合材料的降解有明显的抑制作用。
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| 关 键 词： | 聚乳酸(PLA) 碳纤维 复合材料 体外降解 界面结合强度 |
| 文章编号： | 1005-3093(2002)03-0268-05 |
| 修稿时间： | 2001-08-23 |
INFLUENCE OF INTERFACIAL CONDITION ON IN VITRO DEGRADATION BEHAVIOR OF C/PLA COMPOSITES |
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| WAN Yizao WANG Yulin LI Laifeng ZHOU Fugang. INFLUENCE OF INTERFACIAL CONDITION ON IN VITRO DEGRADATION BEHAVIOR OF C/PLA COMPOSITES[J]. Chinese Journal of Materials Research, 2002, 16(3): 268-272 |
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| Authors: | WAN Yizao WANG Yulin LI Laifeng ZHOU Fugang |
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| Affiliation: | WAN Yizao1** WANG Yulin1 LI Laifeng2 ZHOU Fugang1 |
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| Abstract: | Polylactic acid was reinforced with carbon fibers of various surface conditions to evaluate the influence of interfacial condition on in vitro degradation behavior of the C/PLA composites in this paper. Variations of water uptake, mass loss and mechanical properties with degradation time for the C/PLA composites with different interfacial characteristics were compared. Experimental results showed that a C/PLA composite with a stronger interfacial bond exhibited lower water uptake and mass loss, and slower rate of decrease in mechanical properties (bending strength and modulus and shear strength) and interfacial bonding strength. Higher interfacial bonding strength can retard the degradation of the C/PLA composites. |
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| Keywords: | polylactic acid (PLA) carbon fiber composite degradation in vitro interfacial bonding strength |
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