碳纤维增强多相环氧复合泡沫材料（CFR-环氧-固化剂/HGMS/气凝胶-R-中空环氧微球（AR-HEMS））

Carbon Fiber Reinforced Multi-Phase Epoxy Syntactic Foam (CFR-Epoxy-Hardener/HGMS/Aerogel-R-Hollow Epoxy Macrosphere(AR-HEMS)).

作者信息

Wu Xinfeng, Gao Yuan, Jiang Tao, Wang Ying, Yang Ke, Liu Tengshi, Sun Kai, Zhao Yuantao, Li Wenge, Yu Jinhong

机构信息

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

School of Materials Science and Engineering, Central South University, Changsha 410083, China.

出版信息

Polymers (Basel). 2021 Feb 24;13(5):683. doi: 10.3390/polym13050683.

DOI:10.3390/polym13050683

PMID:33668296

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7956284/

Abstract

Because the aerogel has ultra-low density and good impact resistance, the aerogel material, epoxy-hardener system, and expandable polystyrene beads (EPS) were used to prepare the lightweight aerogel reinforced hollow epoxy macro-spheres (AR-HEMS). The multi-phase epoxy syntactic foam (ESF) was manufactured with the epoxy-hardener system, HGMS (EP-hardener-HGMS), and AR-HEMS by "the compression modeling method." In this experiment, in order to enhance the strength of the ESF, some different kinds of the carbon fiber (CF) were added into the EP-hardener-HGMS system (CFR-EP). The influence of the volume stacking fraction, inner diameter, and layer of the AR-HEMS and the content and type of the CF in the EP-HGMS (CFR-EP) system on the compressive strength of the ESF were studied. Weighing the two factors of the density and compressive strength, the ESF reinforced by 1.5 wt% CF with 90% AR-HEMS has the better performance. This kind of the ESF has 0.428 g/cm nd 20.76 Mpa, which could be applied in 2076 m deep sea.

摘要

由于气凝胶具有超低密度和良好的抗冲击性，因此采用气凝胶材料、环氧固化剂体系和可膨胀聚苯乙烯珠粒（EPS）制备了轻质气凝胶增强空心环氧微球（AR-HEMS）。通过“压缩成型法”，用环氧固化剂体系、热重沉降法（EP-固化剂-HGMS）和AR-HEMS制备了多相环氧复合泡沫材料（ESF）。在本实验中，为了提高ESF的强度，向EP-固化剂-HGMS体系（CFR-EP）中添加了几种不同类型的碳纤维（CF）。研究了AR-HEMS的体积堆积分数、内径和层数以及EP-HGMS（CFR-EP）体系中CF的含量和类型对ESF抗压强度的影响。综合考虑密度和抗压强度这两个因素后发现，由1.5 wt% CF和90% AR-HEMS增强的ESF具有更好的性能。这种ESF的密度为0.428 g/cm，抗压强度为20.76 Mpa，可应用于2076米深的海域。