|
文摘
|
研究T700/5224复合材料在湿热环境和15~#液压油、4010~#合成航空润滑油、RP-3航空煤油和AHC-1水基型清洗剂4种飞机上常用的化学介质中的老化行为、实验不同时间后的吸湿量及力学性能。采用红外光谱(IR)和动态力学(DMA)分析T700/5224复合材料在介质老化过程中的化学变化和玻璃化转变温度T_g。结果表明:在80℃-85%RH的湿热环境中实验1000h后吸湿量为1.05%,在80℃-100%RH的湿热环境中实验1000h后的吸湿量为1.35%;T700/5224复合材料湿热老化后,剪切性能随老化时间变化不大,弯曲性能下降较大,开孔拉伸性能变化较大,但总体上并没有降低,而开孔压缩性能一直缓慢下降。介质老化对T700/5224复合材料的力学性能影响不大,AHC-1水基型清洗剂对其影响大于其他3种介质,T700/5224复合材料在AHC-1水基型清洗剂中浸泡45天后其玻璃转变温度T_g下降10℃。 |
|
其他语种文摘
|
The aging properties, absorption and mechanical properties of T700/5224 composites which were in hygrothermal environment and in 15~# hydraulic oil, 4010~# lubricating oil, RP-3 kerosene and AHC-1 cleaner were studied. The properties' changes and T_g of the T700/5224 composite were analyzed by infrared analysis (IR) and dynamic mechanical analysis (DMA). The results show that the absorption is 1.05% in environment of 80℃-85%RH, and 1.35% in environment of 80℃-100%RH. Shear strength is not changed obviously, but flexural strength decreases greatly. Open-hole tensile strength changes a lot, but on the whole, not decreases. Open-hole compression strength is always gradually decreasing. There is no evident impact on mechanical properties of composite by chemical solutions. The effect of AHC-1 cleaner on T700/5224 composite is bigger than the other three media, T_g declines 10℃ after soaking in AHC-1 cleaner for 45 days. |
|
来源
|
材料工程
,2016,44(4):82-88 【核心库】
|
|
DOI
|
10.11868/j.issn.1001-4381.2016.04.014
|
|
关键词
|
树脂基复合材料
;
湿热老化
;
介质老化
;
力学性能
|
|
地址
|
1.
北京航空材料研究院, 北京, 100095
2.
广州金邦有色合金有限公司, 广州, 511340
3.
北京航空航天大学材料科学与工程学院, 北京, 100191
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1001-4381 |
|
学科
|
一般工业技术 |
|
文献收藏号
|
CSCD:5677693
|
了解气象卫星更多信息，请访问