深海环境下环氧树脂吸水机理研究  

Studies on Water Absorbing Mechanism of Epoxy Resin in Deep Sea

作　　者：高新华[1] 刘伟[2] 王鹏[2] 魏浩[2] 刘连河[2] 

机构地区：[1]中国船舶重工集团公司第七〇一研究所,武汉430064 [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11期25-29,共5页China Coatings

摘　　要：利用环氧树脂TDE-85分别与固化剂651、T403固化制备了树脂基体样片,采用深海模拟设备进行高静水压吸水性能研究,并通过傅里叶红外(FT-IR)和扫描电镜(SEM)考察了环氧树脂高静水压处理前后结构变化。研究结果表明,高静水压环境下,环氧树脂的吸水过程分为3个阶段,即快速吸水阶段、缓慢吸水阶段和吸水平衡阶段;环氧树脂自由体积和极性基团浓度决定着高静水压力对水分子的进入起促进还是抑制作用;水分子的大量进入会导致树脂基体发生水解等不可逆破坏。Resin specimen was prepared through epoxy resin TDE-85 cured with 651 and T403. Water absorbing mechanism was studied through hydrostatic pressure test. The structure changes of epoxy resin before and after hydrostatic processing were investigated through FT-IR and SEM tests. The results indicated water absorption process of epoxy resin under high hydrostatic condition was divided into three stages, namely last absorbing water stage, absorbing water slowly and absorbing equilibrium. Promotion or inhibition of high hydrostatic was decided by flee volume and polar group concentration. A large number of water absorption could lead to epoxy resin irreversible damage such as hydrolyzation.

关 键 词：环氧树脂 固化剂 吸水性 高静水压 深海环境 

分 类 号：TQ630.4[化学工程—精细化工]