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Citation: WANG Jian-Hua, HE Xian-Ru, HUANG Guang-Su, ZHANG Jun, ZHAO Xia-Dong, JIANG Lu-Xia. Damping Properties of Chlorinated Butyl Rubber/Poly (meth) acrylate IPNs[J]. Chinese Journal of Applied Chemistry, ;2005, 22(4): 382-386. shu

Damping Properties of Chlorinated Butyl Rubber/Poly (meth) acrylate IPNs

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a College of Polymer Science and Engineering, Sichuan University, Chengdu 610065;
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b Institute of Chemical Engineering Materials, China Academy of Engineering Physics, Mianyang

Corresponding author: HUANG Guang-Su,
Received Date: 28 July 2004
Available Online: 28 November 2004
Fund Project: 国家自然科学基金资助项目(10276025) (10276025)

The damping functional zone of chlorinated butyl rubber (CⅡR) was successfully extended to higher temperature zone by means of forming interpenetration networks (IPNs) where poly (meth) acrylate was employed as the second network.The results from DMA show that in the IPNs,the content of crosslinking agent in the first network of CⅡR,the ratio between the two components,the type of (meth) acrylate composing the second network as well as the type and content of the crosslinking agent in the second network all have significant influence on the damping properties of the IPN.When m(CⅡR):m(PMAc) was (80~60):(20~40),at 10 Hz,CⅡR/PEA IPNs exhibited a high damping value with tanδ_max≥1.24,while CⅡR/PBMA IPNs exhibited a wide damping zone of -45℃ to +57℃(tanδ≥0.3),and a tanδ_max of 0.65.The (morphologies) and structures of the IPNs were characterized by means of TEM,and it was found that the CⅡR/PBMA IPNs had smaller phase domain size of 100~320 nm,and exhibited a good compatibility between its components.
- CIIR,
- IPNs,
- poly(meth) acrylate,
- damping property
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