High-transparency polysilsesquioxane/glycidyl-azide-polymer resin and its fiberglass-reinforced composites with excellent fire resistance, mechanical properties, and water resistance
High-transparency polysilsesquioxane/glycidyl-azide-polymer resin and its fiberglass-reinforced composites with excellent fire resistance, mechanical properties, and water resistance
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具有优异阻燃性、机械性能和耐水性的高透明聚倍半硅氧烷/缩水甘油基叠氮化物聚合物树脂及其玻璃纤维增强复合材料
DOI：
10.1016/j.compositesb.2021.108913
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发表时间：
2021-04
期刊：
影响因子：
--
通讯作者：
Yang Rongjie
中科院分区：
文献类型：
--
作者：
Zhang Weiwei;Zhang Xin;Qin Zhaolu;Wu Yiwei;Zhang Wenchao;Yang Rongjie
新型高性能聚合物复合材料在各种工业应用中具有广泛的应用前景。设计合成了两种不饱和聚倍半硅氧烷(AcPhPOSSⅠ和AcPhPOSSⅡ)，并通过热固化法制备了它们的热固性树脂(AcPhPOSS@GAP)和玻璃纤维掺杂复合材料(AcPhPOSS@GAP@GF)。AcPhPOSS@GAP具有良好的透明度，特别是AcPhPOSSⅡ@GAP的透明度和雾度分别为84.0%和3.0%。与AcPhPOSS@GAP相比，AcPhPOSS@GAP@GF的热释放率和烟度释放率分别低约69%和50%。此外，经水处理后，AcPhPOSS@GAP@GF的弯曲强度和弯曲弹性模量分别保持在80 Mpa和11,000 Mpa以上。这是由于玻璃纤维和基质之间的粘附性很强，使它们能够有效地承受不利外部条件的影响。AcPhPOSS@GAP@GF具有低的介电损耗和高的导热系数，防止了热积累造成的损害。因此，所制备的材料具有良好的应用前景。
New high-performance polymer composites are desirable for various industrial applications. Two unsaturated polysilsesquioxanes (AcPhPOSSⅠ and AcPhPOSSⅡ) were designed and synthesized successfully, and their thermosetting resins (AcPhPOSS@GAP) and fiberglass-doped composites (AcPhPOSS@GAP@GF) were prepared by thermal curing of AcPhPOSS and glycidyl azide polymer (GAP). AcPhPOSS@GAP exhibited excellent transparency, especially AcPhPOSSⅡ@GAP with a transparency and haze of 84.0% and 3.0%, respectively. The heat and smoke release rates of AcPhPOSS@GAP@GF were about 69% and 50% lower, respectively, than those of AcPhPOSS@GAP. Further, the flexural strength and flexural modulus of AcPhPOSS@GAP@GF remained above 80 MPa and 11,000 MPa, respectively, after water treatment. This was due to the strong adhesion between the fiberglass and the matrix, which enabled them to effectively withstand the impact of adverse external conditions. AcPhPOSS@GAP@GF presented a low dielectric loss and high thermal conductivity, which prevented damage caused by heat accumulation. Thus, the prepared materials have excellent application prospects.
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影响因子：
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