文献类型：期刊文献

英文题名：The properties of a silicon-containing aryacetylene resin modified by octa(azidopropyl) polyhedral oligomeric silsesquioxane and its carbon fiber reinforced composites

作者：Bu, Xiaojun[1]; Zhou, Yan[1]; Huang, Farong[1]; Du, Lei[1]

机构：[1] Key Laboratory for Specially Functional Polymeric Materials and Related Technology, East China University of Science and Technology, Ministry of Education, No.130 Meilong Road, Shanghai, China

年份：2015

卷号：2015-July

外文期刊名：ICCM International Conferences on Composite Materials

收录：EI(收录号：20183705813681)

语种：英文

摘要：Silicon-containing arylacetylene (PSA) resins possess excellent performances, including high thermal stability, low dielectric constant, and high mechanical property maintenance at high temperature. Polyhedral oligomeric silsesquioxanes (POSS) exhibits special organic-inorganic properties, which is usually used for the modification of polymeric materials. A novel resin OAPS-PSA was obtained from PSA resin and octa(azidopropyl) polyhedral oligomeric silsesquioxane (OAPS) by "click" polymerization. The structures and properties of the OAPS-PSA resins are characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC) and contact angle measurements. The results show that the ethynyls or ethynylenes in the PSA resin can react with azide groups in OAPS through "click" polymerization to form triazole rings. The contact angle measurements illustrate that the surface of OAPS-PSA thermoset has higher polarity than that of the PSA thermoset. The T300/OAPS-PSA and T300/PSA composites were prepared from 2D T300 carbon fiber plain fabrics, OAPS-PSA resin or PSA resin, respectively. The structures and properties of the composites were characterized by Scanning Electron Microscope (SEM), mechanical property tests, etc. The flexural property results indicate the flexural strength of a T300 /OAPS-PSA composite arrives at 293 MPa and increases by 24% as compared with that of the T300/PSA composite. The enhanced property is considered to be the contribution of the POSS with triazole rings formed in curing process. ? 2015 International Committee on Composite Materials. All rights reserved.