The aim of this article is to improve the interfacial adhesion between silicone rubber (SR) and Rayon fiber by the help of functional hybrid POSS nanoparticles. Two POSS types were compared, octavinyl‐POSS (O‐POSS) and methacryl‐POSS (M‐POSS), having reactive CC double bonds that can impart in peroxide crosslinking. O‐POSS is nonpolar, whereas M‐POSS is polar and is able to make H‐bond with Rayon fibers. POSS type and their concentrations were examined as the experimental parameters. H‐adhesion tests indicated that both POSS types enhanced the adhesion of SR composites to Rayon fibers compared with control recipe. Specifically, slightly higher values were obtained with the use of M‐POSS. It was observed that both O‐POSS and M‐POSS slowed down the curing rate but increased the degree of crosslinking. The cure extent of O‐POSS containing composites was found to be higher than that of M‐POSS containing ones. Thermal gravimetric analyses revealed that thermal stability of SR composites was significantly improved by the addition of POSS particles. Higher char yield and degradation temperatures were obtained with O‐POSS at higher loadings with respect to M‐POSS. The POSS distribution at lower loading levels was found to be homogenous for both POSS types as observed from scanning electron microscope and transmission electron microscope.

中文翻译：

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借助功能性多面体低聚倍半硅氧烷在硅橡胶/人造丝纤维复合材料中改善界面附着力：物理，机械，热和形态性能

本文的目的是借助功能性杂化POSS纳米粒子改善硅橡胶（SR）与人造丝纤维之间的界面粘合力。两种类型的POSS进行比较，octavinyl-POSS（O-POSS）和甲基丙烯酰基-POSS（M-POSS），具有反应性 CC 可以赋予过氧化物交联作用的双键。O‐POSS是非极性的，而M‐POSS是极性的，并且能够与人造丝纤维进行H键合。以POSS类型及其浓度作为实验参数。H粘附力测试表明，与对照配方相比，两种POSS类型均能增强SR复合材料对人造丝纤维的粘附力。具体来说，使用M-POSS可获得更高的值。据观察，O-POSS和M-POSS都减慢了固化速度，但增加了交联度。发现含O-POSS的复合材料的固化程度高于含M-POSS的复合材料。热重分析表明，通过添加POSS颗粒可以显着改善SR复合材料的热稳定性。与M-POSS相比，使用O-POSS在更高的负载下可获得更高的炭收率和降解温度。如从扫描电子显微镜和透射电子显微镜观察到的，发现在较低负载水平下的POSS分布对于两种POSS类型都是相同的。