Yog vim li cas ntawm npuas nyob rau hauv casting polyurethane khoom.
1, lub defoaming ntawm casting prepolymer raw khoom yog tsis tshem tawm tag nrho, ua rau npuas nyob rau hauv cov khoom raw. Cov khoom siv raw khoom yuav tsum tau defoam rau 40 feeb nyob rau hauv ib qho chaw nqus tsev kawm ntawv.
2, Casting polyurthane pre-polymer raw cov ntaub ntawv nqus dej noo, yooj yim kom muaj npuas. Prepolymer raw cov ntaub ntawv thiab MOCA noo noo nqus tau yooj yim cuam tshuam rau cov khoom zoo.
3. Cua yog tov thaum lub sij hawm tsim khoom. High viscosity raw cov ntaub ntawv yog ntau yooj yim rau npuas.
4, lub taub hau tov khoom xau cua, los yog xau dej ntxuav.