【摘 要】
：
Damping materials are refered to a kind of materials that have special dissipation ability to noise and vibration.Viscoelastic polymers as damping materials have attracted considerable attention both
【机 构】
：
Institute of Chemistry,the Chinese Academy of Sciences,Beijing,100190
【出 处】
：
Seventh International Symposium On Engineering Plastics (第七届
论文部分内容阅读
Damping materials are refered to a kind of materials that have special dissipation ability to noise and vibration.Viscoelastic polymers as damping materials have attracted considerable attention both in academia and industry, due to their outstanding properties for suppressing vibration and noise by the relaxations of glass transition and terminal modes.As good damping materials should have the loss tangent (tan) values higher than 0.3 for a temperature range of at least 60 ℃C 1 However, the viscoelastic polymers usually have a narrow range of glass-rubber transition and terminal relaxation which are far from the room temperature, obstructing further application as damping materials.Much effort has been made to enhance the magnitude of tan and control the effective damping position to locate in the required temperature region, such as miscible blends,interpenetrating networks, introduction of the dangling chains,2 adding plasticizers and fillers, and so on.
其他文献
Hemiphasmidic mesogen units are composed of two parts with different shapes, a rod-like and a half-disc moieties that are linked together.1 Due to the special shape matching mechanism, side-chain liqu
The efficient synthesis of functionalized aliphatic polyesters bearing abundant negatively charged groups and the preparation of corresponding negatively charged nanoparticles attract great interest i
Poly(1-butene) (iPB) has wide application in many fields due to its good heat-resistant creep degeneration,good environmental stress cracking resistance performance, and good tenacity.[1-4] The struct
Aliphatic polycarbonates (APCs) are an important class of biodegradable polymers with excellent physical and chemical properties and biocompatibility [1.-2].One of them, poly (octamethylene carbonate)
Due to its excellent physical properties, graphene acting as reinforcing fillers has attracted intense interests.To achieve a controlled distribution, the formation of a conductive network composed of
Aliphatic polycarbonates (APCs) are a kind of excellent biodegradable materials with attractive mechanical properties, biocompatibility, non-toxicity and in vivo bioresorbability [1, 2].Some researche
Aerogel is well-known as a kind of high-performance thermal insulation material with nano-porous structure[1].Silica aerogel is the most widely used aerogel.Monolithic transparent silica aerogel combi
The separation of enantiomers is demanded strongly in the biological, pharmaceutical and pesticide industries.Polysaccharide-based chiral stationary phases (CSPs), especially phenylcarbamate and benzo
Polyimide (PI) is well-known as high-performance polymeric engineering material with excellent mechanical, thermal and electrical properties, so it has been widely used in many applications, such as m
In the past decade, many eftorts have been made to pursue high photovoltaic performance, and thus the power conversion efficiencies (PCEs) of PSCs with BHJ structure have been improved to over 9％.[1-2