摘要
为了研制适用于深水环境的固体浮力材料,单独以4,4′-二氨基二苯基甲烷(DDM)固化剂固化的双酚A型环氧树脂作为基体树脂,加入空心玻璃微珠(HGB)制得深水固体浮力材料。采用粉末形式的DDM简化了环氧树脂固化前期的混合过程,优化选择了稀释剂,得到了操作工艺简单、性能优良的环氧树脂。探讨了偶联剂对深水固体浮力材料单轴压缩性能的影响,研究了深水固体浮力材料的常压及静水压下的吸水性能。结果表明,深水固体浮力材料性能优良,密度为0.625 g/cm~3和0.542g/cm~3浮力材料,分别在70MPa和45MPa静水压下的吸水率均只有0.31%,能够适应相应水深的应用要求。
In order to develop solid buoyancy materials suitable for deep water environment,deep water solid buoyancy materials were prepared by using bisphenol A epoxy resin cured with 4,4′-diaminodiphenylmethane(DDM) and hollow glass beads(HGB). The matrix resin with simple operation process and excellent performance was obtained by epoxy resin cured with DDM in powder form and selected diluent. The influence of coupling agent on the uniaxial compressive properties of deep-water solid buoyancy materials was discussed. The water absorption properties of deep-water solid buoyancy materials under normal and hydrostatic pressures were studied. The results show that the deep-water solid buoyancy materials have excellent properties,and the water absorption of the materials with density of 0.625, 0.542 g/cm~3 at 70 MPa and 45 MPa hydrostatic pressure is only 0.31%,which can meet the application requirements of the corresponding water depth.
引文
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