本文已被:浏览 1809次 下载 1495次
中文摘要: 将双(N-间乙炔基苯基邻苯二甲酰亚胺)醚(DAIE)和双酚A型氰酸酯(CE)分别加到聚苯乙炔基苯基硅氧硼烷(PSOB)和三苯乙炔基苯基硅烷(PTPES)混合体系中进行改性,制得两种纤维增强复合材料PSOB-PTPES-DAIE和PSOB-PTPES-CE。研究了固化后树脂的热稳定性能、力学性能、介电性能和耐水性能。结果表明:两种改性树脂高温下均保持了良好的耐热性能,在氮气中质量损失5%时的温度(T5%)最高可达534 °C,800 °C下质量保留率最高可达62.9%。所制备的两种复合材料体系常温下弯曲强度可达250 MPa以上,240 °C下的弯曲强度最高可达202 MPa。饱和吸水率最低可达1.4%,耐水性能优良。不同处理条件下的复合材料介电常数与介电损耗角正切值变化较小,介电性能良好。
Abstract:Di-N-m-acetylene phenylphthalimide ether (DAIE) and cyanate ester resin (CE) were used separately to modify the poly(phenyl(phenylethynylsilyl)oxide phenylborane) terminated with phenylace tylene (PSOB). Two types of fiber reinforced composites (PSOB-PTPE-DAIE and PSOB-PTPES-CE) were prepared. The thermal stability, mechanical strength, dielectric and water resistance properties of the cured resins were investigated. It was indicated that both of the two modified resins exhibited high temperature resistance with temperature of 5% mass loss up to 534 °C and the maximum char yield of 62.9% at 800 °C in N2 atmosphere. The flexural strength of the two types of composites was more than 250 MPa at room temperature and reached the maximum of 202 MPa at 240 °C. They exhibited well water resistance and their saturated water absorbing ratio reached the minimum of 1.4%. In different processing conditions, the dielectric constant and dielectric loss angle tangent of the composite showed little changes and their dielectric properties were excellent.
文章编号: 中图分类号: 文献标志码:
基金项目:
引用本文:
朱依丽,宋宁,倪礼忠.聚苯乙炔基苯基硅氧硼烷树脂及其复合材料的性能[J].功能高分子学报,2011,24(1):.
ZHU Yi-li,SONG Ning,NI Li-zhong.Properties of Poly(phenyl(phenylethynylsilyl)oxide phenylborane) Terminated with Phenylacetylene and Its Composites[J].Journal of Functional Polymers,2011,24(1):.
朱依丽,宋宁,倪礼忠.聚苯乙炔基苯基硅氧硼烷树脂及其复合材料的性能[J].功能高分子学报,2011,24(1):.
ZHU Yi-li,SONG Ning,NI Li-zhong.Properties of Poly(phenyl(phenylethynylsilyl)oxide phenylborane) Terminated with Phenylacetylene and Its Composites[J].Journal of Functional Polymers,2011,24(1):.