复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (10): 32-36.DOI: 10.19936/j.cnki.2096-8000.20231028.005

• 基础研究 • 上一篇    下一篇

表面积比对固体浮力材料吸水率的影响

林守强1, 杨转1*, 刘刚2, 黄辉2, 陈妙谋1, 黄鑫1, 陈大江3, 郝静1   

  1. 1.中海油深圳海洋工程技术服务有限公司,深圳518000;
    2.台州中浮新材料科技股份有限公司,临海317005;
    3.中海油有限湛江分公司,湛江524000
  • 收稿日期:2023-05-31 出版日期:2023-10-28 发布日期:2023-12-13
  • 通讯作者: 杨转(1991—),女,工程师,硕士,主要从事海洋工程结构方面的工作,yangzhuan@cooec.com.cn。
  • 作者简介:林守强(1971—),男,高级工程师,学士,主要从事水下生产系统安装、维修、拆除方面的工作。
  • 基金资助:
    中海油“三新三化”项目(JTKY-SXSH-2021-GC-01)

The effects of surface area to volume ratio on the water absorption rate of solid buoyancy materials

LIN Shouqiang1, YANG Zhuan1*, LIU Gang2, HUANG Hui2, CHEN Miaomou1, HUANG Xin1, Chen Dajiang3, HAO Jing1   

  1. 1. CNOOC Offshore Engineering Solutions Co., Ltd., Shenzhen 518000, China;
    2. Taizhou CBM-Future New Materials Science & Technology Co., Ltd., Linhai 317005, China;
    3. China National Offshore Oil Corporation Zhanjiang Branch, Zhanjiang 524000, China
  • Received:2023-05-31 Online:2023-10-28 Published:2023-12-13

摘要: 不同形状和尺寸的固体浮力材料在相同水压环境下的吸水率不同,其表面积与体积的比值,即表面积比,是影响吸水率的主要因素之一。为研究固体浮力材料表面积比与其吸水率的关系,对不同表面积比的固体浮力材料试样在10 MPa和20 MPa水压环境下进行了累计30 d的水压试验,得到了累计吸水率随表面积比增加而增加的对应趋势。基于菲克定律,推导了水在浮力材料内部扩散的动力学方程,得到了吸水率与组合参数公式的线性关系,并通过与试验数据对比进行了验证。结果表明在相同水压环境和保压时间下,固体浮力材料的吸水率与其表面积比成正比。该结论对工程设计和分析具有指导意义。

关键词: 固体浮力材料, 吸水率, 表面积比, 水压, 复合材料

Abstract: The water absorption rate of solid buoyancy materials under a certain hydrostatic pressure varies with their sizes and shapes. The surface area to volume ratio is one of the major factors that affect the water absorption rate. In order to study this relationship, solid buoyancy material samples of various area to volume ratios were prepared and tested under hydrostatic pressures of 10 MPa and 20 MPa for up to 30 days. The cumulative water absorption rates of the samples are found to increase with the area to volume ratio. A kinetics formula describing the propagation of water in solid buoyancy materials is developed based on Fick’s Law. A linear relationship between the wa-ter absorption rate and a composite parameter (S/V)t has been derived and verified by comparing with the meas-ured data. The findings indicate that the water absorption rate of solid buoyancy materials is proportional to its area to volume ratio under the same hydrostatic pressure and for the same period of time, which offers a meaningful guidance to the engineering design and analysis of such materials.

Key words: solid buoyancy materials, water absorption rate, surface area to volume ratio, hydrostatic pressure, composites

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