以自行合成的笼形八乙烯基硅倍半氧烷(OVP)与三元乙丙橡胶(EPDM)及硫化剂等通过双辊混炼机制备笼形低聚硅倍半氧烷(POSS)/EPDM纳米杂化材料.测定了POSS/EPDM杂化材料的力学性能和阻燃性能,并利用热重分析仪及锥形量热仪考察了材料的热稳定性及热释放速率.结果表明:含OVP的POSS/EPDM纳米杂化材料与纯EPDM相比,氧指数(LOI)和热稳定性明显提高,热释放速率显著降低.仅加入0.88%的OVP即可将LOI提高11.8%,起始热分解温度提高51℃,残炭量为纯EPDM的1.58倍,热释放速率降低25.8%,可见OVP在提高EPDM综合性能方面有较高应用价值.
参考文献
| [1] | 郭晓冉,王文平,费明,等.POSS/PS复合材料的制备及其热件能[J].复合材料学报,2009,26(6):31-36. |
| [2] | 何辉,袭锴,葛仁杰,等.笼型倍半硅氧烷(POSS)的合成及应用进展[J].高分子材料科学与工程,2008,24(4):5-9. |
| [3] | 马祥梅,秦基楼.多面体低聚倍半硅氧烷(POSS)的合成与应用研究进展[J].安徽化工,2009,35(1):14-16.Ma Xiangmei,Qin Jilou.Recent research progress of polyhedral oligomeric silsesquioxane monomer synthesis and applications[J].Anhui Chemical Industry,2009,35(1):14-16. |
| [4] | Du Wenjie,Shan Jiajia,Wu Yixian,et al.Preparation and characterization of polybenzoxazine/t risilanol polyhedral oligomeric silsesquioxanes composites[J].Materials and Design,2010,31(4):1720-1725. |
| [5] | Madbouly Samy A,Taigbe Joshua U.Recent advances in synthesis,characterization and rheological properties of polyurethanes and POSS/polyurethane nanocomposites dispersions and films[J].Progress in Polymer.Science,2009,34(12):1283-1332. |
| [6] | Misra Rahul,Alidedeoglu Alp H,Jarrett William L,et al.Molecular miscibility and chain dynamics in POSS/polystyrene blends:Control of POSS preferential dispersion states[J].Polymer,2009,50(13):2906-2918. |
| [7] | Yin Yani,Lamm Monica H.Molecular dynamics simulation of mixed matrix nanocomposites containing polyimide and polyhedral oligomeric silsesquioxane(POSS)[J].Polymer,2009,50(5):1324-1332. |
| [8] | Franehini Elsa,Galy Jocelyne,Gérard Jean-Francois,et al.Influence of POSS structure on the fire retardant properties of epoxy hybrid networks[J].Polymer Degradation and Stability,2009,94(10):1728-1736. |
| [9] | Glodek Terese E,Boyd Steven E,McAninch Ian M,et al.Properties and performance of firer esistant ecocomposites using polyhedral oligomeric silsesquioxane(POSS)fire retardants[J].Composites Science and Technology,2008,68(14):2994-3001. |
| [10] | Huang Junchao,He Chaohin,Xiao Yang,et al.Polyimide/POSSnanocomposites:Interfacial interaction,thermal properties and mechanical properties[J].Polymer,2003,44(16):4491-4499. |
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