复合浮力材料用树脂固化过程及性能研究

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郭豪,贾非,尹宗琦,孙东磊,塔力哈特吾拉孜别克,薛峰.复合浮力材料用树脂固化过程及性能研究[J].,2022,62(6):592-597

复合浮力材料用树脂固化过程及性能研究

Study of curing process and properties of resin for composite buoyancy materials

DOI：10.7511/dllgxb202206006

中文关键词:复合浮力材料基体相力学性能物理性能固化过程

英文关键词:composite buoyancy material matrix phase mechanical properties physical properties curing process

基金项目:国家重点研发计划资助项目(2019YFB1504303);国家自然科学基金资助项目(U1906233).

作者	单位
郭豪,贾非,尹宗琦,孙东磊,塔力哈特吾拉孜别克,薛峰

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中文摘要:

基体树脂在复合浮力材料中起到黏结和支撑填充相以及均衡材料荷载的作用.筛选常用的5种基体树脂,通过实验的方式对比了各树脂的密度、黏度等物理性能及硬度、强度、模量等力学性能,并利用热分析方法探讨了树脂的固化过程.研究结果表明,UPR_196、E-51及LV-EP的固化前期反应平缓、放热量少,反应进行一段时间后,其温度曲线出现明显突变,反应速率加快,迅速升至峰值温度.两类聚氨酯树脂HD85_PU、HD57_PU 的原料使用前进行了预聚或半预聚处理,原料的自身黏度有一定升高,固化反应相对温和,过程中无明显温度突变,且温度峰值较低.综合对比树脂力学性能与物理性能,E-51适合用作超深水的两相复合浮力材料基体树脂,HD85_PU 与LV-EP适用于制备三相复合浮力材料.

英文摘要:

In the composite buoyancy material, the matrix resin plays the role of bonding and supporting the filling phase and balancing the load of the material. Five commonly used matrix resins are selected and their physical properties such as density and viscosity, as well as their mechanical properties such as hardness, strength and modulus, are compared through experiments. At the same time, the curing process of the resins is discussed by thermal analysis method. The results show that the reactions of UPR_196, E-51 and LV-EP are gentle and their heat release is low in the early stage of curing. After a period of time, the temperature curves of UPR_196, E-51 and LV-EP change obviously, and their reaction rates increase rapidly to reach the peak temperature. Because the raw materials of the two kinds of polyurethane resin HD85_PU, HD57_PU are prepolymerized or semi prepolymerized before use, resulting in a certain increase in the viscosity of the raw materials, so their curing reactions are relatively mild, there is no obvious temperature mutation in the process, and the temperature peak is low. Through comprehensive comparison of mechanical and physical properties of the resins, it is found that E-51 is suitable for the matrix resin of two-phase composite buoyancy material in ultra-deep water, and HD85_PU and LV-EP are suitable for the preparation of three-phase composite buoyancy material.

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复合浮力材料用树脂固化过程及性能研究

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