CAJ | 학술논문

采用双螺杆挤出机熔融挤出制备高全同聚1-丁烯（iPB）/聚丙烯（PP）合金，采用动态热机械分析仪和差示扫描量热仪研究其相容性及熔融结晶行为。结果表明：iPB/PP为部分相容体系；iPB和PP的熔融温度、熔融焓均随对方组分含量的增加而逐渐降低，两者相互干扰了对方结晶的完善程度和结晶度；当m（iPB）/m（PP）=60∶40时，iPB结晶温度提高2.8℃，PP结晶温度提高3.8℃，两者相互影响、促进了对方的结晶；w（PP）为10%～70%时，iPB的结晶速率提高显著。
채용쌍라간제출궤용융제출제비고전동취1-정희（iPB）/취병희（PP）합금，채용동태열궤계분석의화차시소묘량열의연구기상용성급용융결정행위。결과표명：iPB/PP위부분상용체계；iPB화PP적용융온도、용융함균수대방조분함량적증가이축점강저，량자상호간우료대방결정적완선정도화결정도；당m（iPB）/m（PP）=60∶40시，iPB결정온도제고2.8℃，PP결정온도제고3.8℃，량자상호영향、촉진료대방적결정；w（PP）위10%～70%시，iPB적결정속솔제고현저。
The high isotactic poly(1-butylene)(iPB)/polypropylene(PP) alloys were prepared by means of melt extrusion in a twin-screw extruder. The compatibility of iPB and PP, the melting and crystallization behaviors of iPB/PP alloys were investigated by dynamic mechanical analyzer(DMA) and differential scanning calorimeter(DSC).The results indicate that iPB/PP alloy is a partially compatible system. The melting temperature and melting enthalpy of iPB and PP tend to decrease with the increase of the opposite component content. The perfection of crystallization and crystallinity degree of iPB and PP are interfered by each other. When the mass ratio of iPB to PP is 60∶40,the crystallization temperatures of iPB and PP are increased by 2.8,3.8 ℃ respectively, and both iPB and PP can promote the crystallization of the opposite component. The crystallization rate of iPP is greatly increased when the mass content of PP is 10%-70%.