通过在橡胶基体中集成多种功能性橡胶颗粒(FRGs),构筑具有多相网络结构的阻尼橡胶材料.首先通过扫描电子显微镜(scanning electron microscopy,SEM)和原子力显微镜(atomic force microscopy,AFM)观察所制备集成材料的微观形貌,然后探究了FRGs多种组合对橡胶样品的动态性能的影响.结果表明,基于FRGs集成的多组分样品呈典型的"海-岛"多相结构,在保持每种FRGs组分相对独立的黏弹特性的同时,通过有效的界面反应实现黏弹特性的集成.进一步地,通过调控FRGs的网络结构参数和相对含量实现了各组分损耗峰的有序组合,获得一种多相结构的宽温域阻尼橡胶材料,其在吸音降噪方面展现出较好的应用潜力.此外,该多相阻尼材料还兼具优异的力学性能和吸能减震能力.本文工作基于传统橡胶工业原料和共混工艺,提出了一种简单易行、可规模化生产的橡胶阻尼材料制备新策略,不涉及复杂合成与改性,为发展高性能橡胶阻尼材料提供了新思路.
Manufacturing Damping Rubber with Wide Temperature Range via Integration of Functional Rubber Granules
Rubber damping materials with multiphase network structure were constructed by integrating and combining functional rubber particles(FRGs)in the rubber matrix.Accordingly,a new strategy for preparing damping rubber material with wide temperature range was proposed.The morphology of the multiphase materials was characterized by scanning electron microscope(SEM)and atomic force microscope(AFM),proving that the prepared composite materials exhibit a typical"sea-island"structure.Then,the effect of FRGs combination on the viscoelastic properties of multiphase samples was explored,which demonstrated that this strategy of constructing multiphase materials through interfacial co-crosslinking can elaborately integrate the viscoelastic properties of different FRGs components while maintaining their relatively independent viscoelastic properties.By adjusting the network structural parameters and relative content of the FRGs,the combination of loss peaks of each component was achieved,and a wide temperature range damping rubber material was ultimately obtained.Further,sound absorption testing indicates the potential application of this multiphase damping material in sound absorption and noise reduction.In addition,the multiphase damping material also possesses excellent mechanical properties and energy absorption and shock absorption capabilities.In short,this work proposes a simple and scalable preparation strategy for rubber damping materials based on traditional rubber industry raw materials and blending processes,providing new ideas for the development of high-performance rubber damping materials.
Functional rubber granulesIntegrated combinationMultiphase structureWide temperature rangeDamping rubber
万方数据
维普
