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HGMS-EHS增强中空玻璃微珠复合材料的制备及其力学性能表征

Development and Mechanical Characterization of HGMS-EHS-Reinforced Hollow Glass Bead Composites.

作者信息

Jiang Tao, Gao Yuan, Wang Ying, Zhao Zhongxian, Yu Jinhong, Yang Ke, Zhao Yuantao, Li Wenge, Wu Xinfeng

机构信息

Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China.

College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China.

出版信息

ACS Omega. 2020 Mar 20;5(12):6725-6737. doi: 10.1021/acsomega.0c00015. eCollection 2020 Mar 31.

DOI:10.1021/acsomega.0c00015
PMID:32258908
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7114879/
Abstract

Hollow glass microsphere-reinforced epoxy hollow spheres (HGMS-EHSs) were prepared by a "rolling ball method" using expanded polystyrene beads, HGMSs, and epoxy resin (EP). The three-phase epoxy syntactic foam (epoxy/HGMS-EHS-HGMS composite) was fabricated by combining HGMS-EHS as a lightweight filler with EP and HGMS by a "molding method". The HGMS-EHS and epoxy curing agent systems were well mixed by scanning electron microscopy. Experiments show that higher HGMS-EHS stack volume fraction, lower HGMS-EHS layer number, higher HGMS-EHS diameter, lower HGMS-EHS density, higher HGMS volume fraction, and lower HGMS density result in a decrease in the density of the three-phase epoxy syntactic foam. However, the above factors have the opposite effect on the compressive strength of the three-phase epoxy syntactic foam. Therefore, in order to obtain the "high-strength and low-density" three-phase epoxy syntactic foam, the influence of various factors should be considered comprehensively to achieve the best balance of compressive strength and density of the three-phase epoxy syntactic foam. This can provide some advice for the preparation of buoyancy materials for deep sea operations.

摘要

采用“滚球法”，以发泡聚苯乙烯珠粒、空心玻璃微珠（HGMS）和环氧树脂（EP）制备了空心玻璃微球增强环氧空心球（HGMS-EHSs）。通过“模塑法”将HGMS-EHS作为轻质填料与EP和HGMS相结合，制备了三相环氧复合泡沫材料（环氧/HGMS-EHS-HGMS复合材料）。通过扫描电子显微镜观察发现，HGMS-EHS与环氧固化剂体系混合良好。实验表明，较高的HGMS-EHS堆积体积分数、较低的HGMS-EHS层数、较高的HGMS-EHS直径、较低的HGMS-EHS密度、较高的HGMS体积分数和较低的HGMS密度会导致三相环氧复合泡沫材料密度降低。然而，上述因素对三相环氧复合泡沫材料的抗压强度有相反的影响。因此，为了获得“高强度低密度”的三相环氧复合泡沫材料，应综合考虑各种因素的影响，以实现三相环氧复合泡沫材料抗压强度和密度的最佳平衡。这可为深海作业浮力材料的制备提供一些参考。

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