CAJ | 학술논문

以甘油为塑化剂,制备了热塑性淀粉(TPS)；利用自制的甘油基阴离子表面活性剂：(2-十六烷基羧酸酯)丙二羧酸钠(C)为增容剂,制备了PP/TPS/C共混材料,并对其力学性能、熔点、结晶温度、热稳定性、流变性能等进行了分析。结果表明,在100份的PP/TPS(70∶30)共混材料中加入2份C时,其力学性能和流变性能最好。拉伸强度由21.3 MPa降至17.8 MPa,断裂伸长率由9.3%升高至19.7%,提高了115%；流动性变好,表观粘度明显降低。由于增容剂是甘油基阴离子表面活性剂,其与增塑剂甘油、淀粉以及PP 都能产生一定的相互作用,从而影响了共混材料的性能。
이감유위소화제,제비료열소성정분(TPS)；이용자제적감유기음리자표면활성제：(2-십륙완기최산지)병이최산납(C)위증용제,제비료PP/TPS/C공혼재료,병대기역학성능、용점、결정온도、열은정성、류변성능등진행료분석。결과표명,재100빈적PP/TPS(70∶30)공혼재료중가입2빈C시,기역학성능화류변성능최호。랍신강도유21.3 MPa강지17.8 MPa,단렬신장솔유9.3%승고지19.7%,제고료115%；류동성변호,표관점도명현강저。유우증용제시감유기음리자표면활성제,기여증소제감유、정분이급PP 도능산생일정적상호작용,종이영향료공혼재료적성능。
The thermoplastic starch (TPS)was plasticized with 30wt% glycerol.One anionic surfactant 2-(palmitoyloxy)malonate disodium salt (C),which was prepared from glycerol,was used for compatibilizer in blends of PP/TPS/C.Their mechanical properties,melting points,crystallization temperatures,thermostabili-ty and rheological properties were analyzed.When added C was 2,i.e.,the PP/TPS/C (70/30/2)blends showed the best mechanical property and rheological property.In contrast to the blends without C,the tensile strength decreased from 21.3 MPa to 17.8 MPa,whereas the elongation at break increased from 9.3% to 1 9 .7%.The mobility of blends was improved obviously,revealed by the decreasing apparent viscosity.Due to the reactions of C-glycerol,C-starch granule and C-PP,the properties of blends were changed.