教授
博士生导师
硕士生导师
教师拼音名称：shixinyan
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所在单位：橡塑材料与工程省部共建教育部重点实验室
职务：橡塑材料与工程省部共建教育部重点实验室常务副主任
学历：博士研究生
办公地点：青岛市舞阳路51-1号青岛科技大学橡塑楼406房间
性别：女
联系方式：0532-84022468
学位：博士
职称：教授
毕业院校：青岛科技大学
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关键字：Polyol; EVM/PLA; Damping; FTIR; Hydrogen bonds
摘要：Silica filled ethylene-vinyl acetate rubber (EVM) and poly lactic acid (PLA) blends were used as the matrix. DMA was used to investigate the effects of a polyol on the damping properties of the blends. The damping mechanism was investigated by DSC and variable temperature infrared spectroscopy. The results showed that the super branched polyol played the role of a compatibilizer in EVM/PLA blends and it had better affinity with PLA. The polyol greatly improved the damping properties of the EVM/PLA blends due to its inherent dynamic mechanical properties as well as via hydrogen bonds with the blend polymers. 10 and 30 parts polyol broadened the effective temperature range from 66.5 degrees C to 104.8 degrees C and 183.3 degrees C, respectively. The variable temperature IR spectra showed the presence of hydrogen bonds between the OH and C=O and C-O-C in the EVM/PLA/polyol composite, and a red shift occurred when the hydrogen bonds between C-O-C and OH dissociated. (C) 2013 Elsevier Ltd. All rights reserved.
卷号：33
期号：
是否译文：否
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