CAJ | 학술논문

通过布拉本德单螺杆挤出机熔融共混挤出制备聚甲醛/热塑性聚氨酯(POM/TPU)共混合金。采用差示扫描量热仪(DSC)和热台偏光显微镜(HS-PLM)对POM/TPU共混合金的非等温结晶动力学及POM球晶生长形态进行跟踪观察。结果表明：采用莫志深法对 POM/TPU 共混合金的非等温结晶动力学分析结果与 Jeziorny 法相吻合；POM 结晶过程中同时存在均相成核和异相成核，TPU提高了POM的结晶完善性。
통과포랍본덕단라간제출궤용융공혼제출제비취갑철/열소성취안지(POM/TPU)공혼합금。채용차시소묘량열의(DSC)화열태편광현미경(HS-PLM)대POM/TPU공혼합금적비등온결정동역학급POM구정생장형태진행근종관찰。결과표명：채용막지심법대 POM/TPU 공혼합금적비등온결정동역학분석결과여 Jeziorny 법상문합；POM 결정과정중동시존재균상성핵화이상성핵，TPU제고료POM적결정완선성。
Blends of polyoxymethylene and thermoplastic polyurethane(POM/TPU)were prepared by melting blending through Brabender single screw extruder. Non-isothermal crystallization kinetics and spherulite morphology of POM/TPU blends were characterized by differential scanning calorimeter(DSC)and hot stage polarizing light microscopy(HS-PLM), respectively. It is found that non-isothermal crystallization kinetics of POM/TPU blends analysed with Mo’s equation and Jeziorny method achieved the same result. Homogeneous nucleation and heterogeneous nucleation both existed during crys-tallization,with indicates TPU accelerated the crystallinity of POM slightly.