芳纶纤维增强尼龙6复合材料的制备与性能
Preparation and Property of Aramid Fiber Reinforced Nylon-6 Composite
摘 要
采用毛细管流变仪和差示扫描量热仪研究了尼龙6的热性能和流变特性，确定了芳纶纤维增强尼龙6复合材料的热压成型温度；制备了芳纶纤维增强尼龙6复合材料，研究了其微观结构和力学性能，并采用相控阵超声检测技术进行了无损检测。结果表明：芳纶纤维增强尼龙6复合材料的热压成型温度为245 ℃；尼龙6对芳纶纤维的浸渍效果较好，无损检测均未发现复合材料内部存在缺陷；复合材料的静态抗拉强度为279.7 MPa，其动态压缩强度和压缩模量均随应变速率的增加而增大，在高应变速率下呈脆性破坏。
尼龙6
复合材料
微观结构
力学性能
无损检测
aramid fiber
nylon-6
composite
microstructure
mechanical property
nondestructive testing
Abstract
The thermal property and rheological behavior of nylon-6 were studied using capillary rheometer and differential scanning calorimeter and the hot-press forming temperature of aramid fiber reinforced nylon-6 composite was determined. Then the aramid fiber reinforced nylon-6 composite was prepared and the microstructure and mechanical properties were studied. Nondestructive testing of the composite was also conducted using ultrasonic phased array technology. The results show that the hot-press forming temperature of the aramid fiber reinforced nylon-6 composite was 245℃. The impregnating effect of nylon-6 on aramid fiber was relatively good. No defects were found in the composite by the nondestructive testing. The static tensile strength of the composite was 279.7 MPa and both the dynamic compressive strength and compression modulus increased with the increase of strain rate. The composite showed a brittle failure at a high strain rate.
中图分类号 TB324 DOI 10.11973/jxgccl201709012
所属栏目 新材料 新工艺
基金项目 国家杰出青年科学基金资助项目（11225212）
收稿日期 2016/8/1
修改稿日期 2017/7/5
网络出版日期
作者单位点击查看
备注张达适(1993-),男,黑龙江大庆人,硕士研究生导师:文桂林教授
引用该论文: ZHANG Dashi,QIAN Xiuyang,WANG Hongxin,WEN Guilin. Preparation and Property of Aramid Fiber Reinforced Nylon-6 Composite[J]. Materials for mechancial engineering, 2017, 41(9): 68～72
张达适,钱秀洋,王洪鑫,文桂林. 芳纶纤维增强尼龙6复合材料的制备与性能[J]. 机械工程材料, 2017, 41(9): 68～72
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【15】靳世久,杨晓霞,陈世利,等.超声相控阵检测技术的发展及应用[J].电子测量与仪器学报,2014,28(9):925-934.
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【17】ISHAK Z A M, LEONG Y W,STEEG M,et al. Mechanical properties of woven glass fabric reinforced in situ polymerized poly(butylene terephthalate) composites[J]. Composites Science and Technology,2007,67(3):390-398.
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