CRCU

Chemical Research in Chinese Universities ›› 1993, Vol. 9 ›› Issue (4): 345-350.

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The Curing Process and Elastic Modulus of HTPB-Containing Polyurethanes

ZHENG Fu-an1, SUN Jia-zhong2, LUO Kui-de3   

  1. 1. East China Science and Technology University, Shanghai, 200237;
    2. Institute of Theoretical Chemistry, Jilin University, Changchun, 130023;
    3. Red Star Institute of Chemistry, Xiangfan, 441003
  • Received:1992-07-25 Online:1993-12-24 Published:2011-08-17

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Abstract: By means of the functionality distribution deduced and weight averaged functionality a and molecular size vb2, the sol-gel distribution equations of HTPB(Hydroxyl terminated polybutadiene) + TDI (Toluene-2, 4-diisocyanate) expressed by the model of Aai-B2 type polycondensation were solved and the elastic modulus were calculated. The experimental results of HTPB+TDI curing process indicate that a, vb2 and functionality distribution function are available basically.

Key words: Curing process, Functionality distribution, Weight average functionality, Effective length of bond