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Institute of Chemistry, Chinese Academiy of Science, Beijing 100190, China
*Zhao-hong Xue (薛兆弘), E-mail: zhxue@iccas.ac.cn
Received:29 January 2010,
Revised:2010-03-17,
Accepted:25 March 2010,
Published:2011
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Ji-chuan Zhang, Zhao-hong Xue, Rui-fang Yan. DAMPING PERFORMANCE OF EUCOMMIA ULMOIDES GUM[J]. Chinese Journal of Polymer Science, 2011, 29(2): 157-163.
DOI:
Ji-chuan Zhang, Zhao-hong Xue, Rui-fang Yan. DAMPING PERFORMANCE OF EUCOMMIA ULMOIDES GUM[J]. Chinese Journal of Polymer Science, 2011, 29(2): 157-163. DOI: 10.1007/s10118-010-1008-4.
Eucommia ulmoides gum (EU gum)
known as gutta percha in Southeast Asia
is a natural polymer with double characteristics of rubber and plastic. In present paper
tan
δ-T
curve and hysteresis loss (HL) were chosen to characterize its damping property. The results indicated that its tan
δ
value would increase with rising of temperature when
T
>
0℃ and form another damping peak at 40-80℃ besides
g
peak. This phenomenon resulted from meltage of crystals of EU gum could increase its damping property at ambient-high temperature. Its tan
value even exceeded those of conventional damping rubbers
such as nitrile-butadiene rubber (NBR) and chlorinated isobutene-isoprene rubber (CIIR).
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