Chem. J. Chinese Universities ›› 1990, Vol. 11 ›› Issue (1): 108.

• Articles • Previous Articles    

Study on Permeability of PU-PDMS Semi-IPN

Xiao Hong, Ping Zhenghua, Xie Jingwei, Yu Tongyin   

  1. Institute of Materials Science, Fudan University, Shanghai
  • Received:1988-06-03 Online:1990-01-24 Published:1990-01-24

Abstract: In this paper, the permeability of Polyurethane-Polydimethylsiloxane (PU-PDMS) semi-IPNwas studied. It is found that the gas permeability coefficient Pand the selective separation factors ao2/N2 are determined by the composition of the semi-IPNand the crosslinking density of PDMScomponent. In the midrange composition, Pis equal to 2. 26 × 10-12(cm3·cm/cm2·s·Pa) and ao2/N2 is 3.05.

Key words: PU-PDMS, Semi-IPN, Permeability

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