摘要
对碳纤维进行表面氧化处理和对氨基苯甲酸表面处理,以这种表面改性碳纤维与羟基磷灰石陶瓷复合,制备表面改性碳纤维增强羟基磷灰石复合材料,研究各种碳纤维的含量对复合材料的抗弯强度、断裂韧度的影响。结果表明,表面氧化改性碳纤维可以显著提高材料的性能,其断裂韧度可达基体断裂韧度的2倍,抗弯强度可达基体抗弯强度的2.48倍。尤其是对氨基苯甲酸表面处理的碳纤维的效果更好,其断裂韧度可达基体断裂韧度的2.25倍,抗弯强度可达基体抗弯强度的3倍。
The hydroxyapatite matrix composites reinforced by surface modified carbon fibers were prepared by using either the carbon fiber coated with p-aminobenzoic acid, or the＇ one that surface oxidized. The effects of different contents in various carbon fibers on fracture toughness and bending strength of the composites were investigated. The results expatiate that the surface oxidized carbon fibers can markedly improve the properties of the composites. The fracture toughness and bending strength of the composites are 2 and 2.48 times of that of the matrix, respectively. Particularly, the carbon fiber coated with p-aminobenzoic acid improves the properties of the composites significantly. The fracture toughness and bending strength of the composites are 2.25 and 3 times as high as that of the matrix, respectively.
出处
《辽宁工业大学学报（自然科学版）》
2011年第3期163-167,共5页
Journal of Liaoning University of Technology(Natural Science Edition)
基金
辽宁省自然科学基金(20062193)
辽宁省专利局资助项目
关键词
羟基磷灰石
对-氨基苯甲酸
碳纤维
氧化
强韧化
hydroxyapatite
p-aminobenzoic acid
carbon fiber
oxidation
strengthening and toughening
