深海条件下固化剂对环氧树脂性能影响研究  

Effects of Curing Agents on Properties of Epoxy Resin in Deep Sea

作　　者：张海宽 石勇 刘伟[2] 王鹏[2] 魏浩[2] 刘连河 

机构地区：[1]海军驻葫芦岛四三一厂军事代表室,辽宁葫芦岛125004 [2]哈尔滨工程大学海洋先进材料研究院,哈尔滨150001

出　　处：《中国涂料》2013年第12期21-25,共5页China Coatings

摘　　要：利用深海模拟设备和力学测试设备考察了环氧树脂E51和Me-THPA、T403、593、H256 4种不同类型固化体系的吸水性能和弯曲性能,通过对比常压浸水处理和高静水压处理的环氧树脂性能变化,分析了深海条件下不同固化剂类型对环氧树脂性能影响。结果表明,在吸水性能方面,Me-THPA和T403固化剂高静水压处理试样吸水率低于常压浸水处理的试样,而固化剂593和H256与之相反;在力学性能方面,由于固化剂本身自由体积和极性基团的不同,不同固化剂在深海环境下强度下降不尽相同,Me-THPA和T403固化剂20 MPa高静水压处理试样相对于未处理试样弯曲性能有一定程度的降低,但强于常压浸水处理的试样,而593和H256固化剂在高静水压后弯曲性能弱于常压浸水处理的试样。Water absorption and flexural properties of four kinds of epoxy resin systems, i. e. E51/Me-THPA, E51/T403, E51/593 and H256 were discussed. The influences of the epoxy resin curing agent types on the properties of the epoxy resins were analyzed by investigating untreated and 20 MPa treated epoxy resin specimens. The results showed that, in water absorption perlbrmance, Me-THPA and T403 systems with 20 MPa hydrostatic pressure treated exhibits lower absorption than atmospheric soak, on the contrary to 593 and H256. The mechanical property of epoxy systems in high hydrostatic pressure was decided by free volume and polar group. The flexural properties order of Me-THPA and T403 is untreated 20 MPa hydrostatic pressure treated, atmosphere soak. In contrast to atmosphere soak, the flexural properties of 593 and H256 systems decreased.

关 键 词：固化剂 环氧树脂 耐水性 静水压 深海 

分 类 号：TQ630.493[化学工程—精细化工]