Modified phenolic resins based on hyperbranched polysiloxane with improved thermal stability and flame retardancy
A novel modified phenolic (PF) resin with high performance was developed,which was prepared by hybranched phenyl polysiloxane (HPSi) synthesized by our research group with PF resin.The effect of the incorporation of HPSi into PF resin on typical performance of HPSi/PF resins were systemically discussed.Results show that the incorporation of HPSi can not only effectively promote the thermal properties,but also improve the flame retardancy.For example,in the case of the modified PF resin with 10wt% HPSi,initial decompose temperature (Tdi) of HPSi is at about 405℃,which is 18℃ more than that of neat PF resin at the heating rate of 10℃/min; its char yield at 800℃ increases from 68.9% to 76.2% at the heating rate of l0℃/min.Whats more,HPSi 10/PF resin has the maximum LOI value,which is 14.6% more than that of neat PF resin.The novel modified PF resin with improving integrated properties exhibits great potential to be used for many cutting-edges fields.
phenolic resin hybranched phenyl polysiloxane thermal property flame retardancy
Chenglong Gu Aijuan Gu Guozheng Liang Li Yuan
Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Materials Science and Engineering College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China
国际会议
厦门
英文
264-272
2012-01-04(万方平台首次上网日期,不代表论文的发表时间)