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由环氧树脂、甲基四氢苯酐和KH550处理的空心玻璃微珠制得浮力材料,采用全海深环境模拟装置,参考美国军用标准MIL-S-24154A,研究了110 MPa全方位静水压下浮力材料的密度对其吸水性的影响,并对静水压测试前后浮力材料的力学性能作了测试。结果表明,随着浮力材料密度的降低,其吸水率升高。测试前后材料的压缩强度和弹性模量未发生明显变化。同一静水压下,表面喷涂聚脲弹性体的浮力材料吸水率更低。极限破坏压力试验表明,142 MPa的静水压下浮力材料完整无破损,能够满足全海深环境的应用要求。
The buoyancy material was made of hollow glass microbeads treated with epoxy resin, methyltetrahydrophthalic anhydride and KH550. Using a full-sea deep environmental simulator, referring to the American military standard MIL-S-24154A, the hydrostatic pressure The influence of the density of the buoyant material on its water absorption, and the mechanical properties of the buoyant material before and after hydrostatic testing were tested. The results show that as the density of buoyant material decreases, the water absorption increases. Before and after testing the compressive strength and elastic modulus of the material did not change significantly. Under the same hydrostatic pressure, the buoyancy material sprayed on the surface with polyurea elastomer has lower water absorption. The ultimate failure pressure test shows that the buoyancy material under hydrostatic pressure of 142 MPa is intact and can meet the application requirements of deep sea environment.