
典型工作条件下PA12管力学性能的影响因素研究
赵建明, 杨帅, 邹有云, 张新春
典型工作条件下PA12管力学性能的影响因素研究
Study on Influencing Factors of Mechanical Properties of PA12 Tube Under Typical Working Conditions
车用尼龙12(PA12)管在典型工作条件下的性能稳定性对于汽车油管的可靠性至关重要。文章旨在探究温湿度条件对PA12管的尺寸特性及力学性能的影响因素。将4种PA12管在6种不同温湿度条件下进行梯度时间处理后,进行一系列力学性能试验,具体分析温湿度及处理时间对4种PA12管的长度、直径变化率和拉伸强度的影响规律。结果表明:较高的温湿度及较长的处理时间会导致更大的尺寸变化,且PA12五层管的尺寸变化率明显低于单层管及双层管;随着温湿度的升高及处理时间的延长,拉伸强度整体呈现下降趋势,五层管拉伸强度变化较为稳定;相较于湿度变化,温度对PA12管拉伸性能的影响程度较低。研究结果将为PA12材料在汽车工业的应用提供参考。
The performance stability of automotive nylon 12 (PA12) tube under typical working conditions is very important for the reliability of automotive tube. The paper aims to explore the influence factors of temperature and humidity conditions on the dimensional characteristics and mechanical properties of PA12 tube. After gradient time treatment of four kinds of PA12 tubes under six different temperature and humidity conditions, a series of mechanical properties tests were carried out, and the effects of temperature and humidity and treatment time on the length, diameter change rate and tensile strength of four kinds of PA12 tubes were analyzed. The results show that higher temperature and humidity and longer treatment time will lead to greater dimensional change, and the dimensional change rate of PA12 five-layer tube is significantly lower than that of single-layer tube and double-layer tube. With the increase of temperature and humidity and the extension of treatment time, the tensile strength of the five-layer tube showed a decreasing trend, and the change of tensile strength of the five-layer tube was stable. The influence of temperature on the tensile properties of PA12 tube is lower than that of humidity. The research results provide a reference for the application of PA12 material in automotive industry.
PA12 / Temperature and humidity / Size change rate / Tensile strength
TQ323.6
1 |
|
2 |
|
3 |
曲振,胡国胜,王建霞,等.耐高温尼龙PA10T的合成与表征[J].化工新型材料,2014,42(1):137-139.
|
4 |
种云胜,王立岩,王萌,等.碳纤维和玻璃纤维混杂增强生物基PA56复合材料制备及性能[J].工程塑料应用,2023,51(11):9-14.
|
5 |
张其,王孝军,张刚,等.碳纤维增强尼龙PA6T/66共聚物复合材料的制备及性能研究[J].塑料工业,2015,43(4):124-126, 134.
|
6 |
|
7 |
何忠臣,任红檠,王冲,等.锶铁氧体/尼龙12磁性复合材料的结构与性能[J].塑料工业,2019,47(2):42-47.
|
8 |
王暖,李超芹.ACM/PA12热塑性弹性体的制备及性能研究[J].塑料工业,2016,44(6):12-16.
|
9 |
|
10 |
朱建,薛长鸣,罗英哲,等.车用多层共挤尼龙管含水率对机械性能的影响[J].汽车零部件,2022(5):50-53.
|
11 |
郜娅,魏春雪,李宏兵,等.不同热历史尼龙12升温过程中的动态结构分析[J].化工管理,2023(12):144-146.
|
12 |
黄文蕊,黄正强,付鹏,等.半芳香尼龙PA12T的微波辅助聚合与表征[J].化工进展,2022,41(1):336-342.
|
13 |
刘春晓,谭国权,刘邵君.车用尼龙合金 PA6/PP的研制[J].合成树脂及塑料,1995(4):27-31.
|
14 |
|
15 |
|
16 |
李法香,孙东泽.PA6对高含量玻璃纤维增强PA66/PA6I-6T复合材料性能的影响[J].塑料科技,2023,51(12):23-27.
|
17 |
李娜,夏铭辰,孙成,等.尼龙12/γ-环糊精复合物的制备及其晶体结构与性能表征[J].工程塑料应用,2023,51(6):9-14.
|
18 |
左春丽,岳金方,罗志臣.建筑管材用PS/PA6阻燃复合材料的制备及其性能研究[J].塑料科技,2022,50(4):64-68.
|
19 |
赖莉琼,杨阳.PP-HDPE复合暖通管材的制备及耐老化性能研究[J].塑料科技,2023,51(6):37-40.
|
20 |
方新宇,张磊,黄晶晶.PA12/POSS/CNT复合材料阻燃及力学性能的研究[J].塑料科技,2020,48(10):56-58.
|
21 |
覃磊,赵坤祥,王耀明.尼龙护套光缆老化性能研究及使用寿命预测[J].现代传输,2019(6):49-52.
|
22 |
郑天成,褚照哲,段小超,等.耐高温尼龙的结构、性能及发展现状[J].材料导报,2023,37(S1):549-552.
|
23 |
张佳阳,茹巧荣.PA66/12T共聚尼龙的研究[J].河南化工,2021,38(5):29-31.
|
24 |
张其,王孝军,张刚,等.碳纤维增强尼龙PA6T/66共聚物复合材料的制备及性能研究[J].塑料工业,2015,43(4):124-126, 134.
|
25 |
韩百港,汪艳.PA12/MWCNTs导电复合材料的制备与性能[J].工程塑料应用,2021,49(9):23-27, 39.
|
26 |
孔伟,秦凡,陈超.耐紫外无卤阻燃增韧增强PA66制备及性能[J].工程塑料应用,2021,49(7):60-64.
|
27 |
徐俏娬,张小新,徐绍娟.熔融共混制备PA66/HDPE复合材料及其性能研究[J].塑料科技,2021,49(6):52-56.
|
28 |
陈光伟,张强.良外观耐高静压玻纤增强PA66复合材料制备及性能[J].工程塑料应用,2020,48(6):27-31.
|
29 |
赵振伦,姜立忠,潘宇 等.永久型抗静电PA6制备及性能[J].工程塑料应用,2020,48(12):36-40, 57.
|
30 |
田银彩,李江涛.PA6/石墨烯复合材料制备及拉伸性能[J].工程塑料应用,2020,48(7):128-131.
|
/
〈 |
|
〉 |