Article
  • Engineering Analysis of Reactive Extrusion of Polyurethane
  • Yoon KS, Hyun ME, Kim SC
  • 폴리우레탄의 반응압출성형에 대한 공학적 해석
  • 윤건상, 현명억, 김성철
Abstract
A mathematical model was developed to analyze the continuous stepwise polymerization of polyol and diisocyanate to form the thermoplastic polyurethane in a single-screw extruder. The reactants used in this system wert MDI, 1, 4-butanediol and poly(caprolactone glycol) (M.W. 832) with equivalent weight ratio of 2:1:1. The reaction kinetics and the viscosity function were obtained through experiments and the balance equations of chemical species, momentum and energy in rectangular coordinates were established for an unwound channel. These equations were solved numerically to calculate the velocity, residence time, conversion, temperature and pressure profiles at various operating conditions. The effect of Tb/Ts ratio, RPM and catalyst concentration were discussed.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1986; 10(6): 599-606

    Published online Oct 25, 1986