CAJ | 학술논문

采用熔融共混的方法制备了马来酸酐接枝聚碳酸亚丙酯（PPCMA）/热塑性淀粉（TPS）、PPCMA/热塑性氧化淀粉（TPOS）和PPCMA/DL-TPOS（铝酸酯预处理的TPOS）复合材料，研究淀粉的氧化以及偶联剂的加入对 PPC 复合材料流变、形态和性能的影响。加入淀粉后的 PPC 复合材料拉伸强度有较大提高，红外光谱结果显示淀粉和 PPCMA 之间形成了氢键作用，这可能是力学性能提高的主要原因；热塑性氧化淀粉与 PPCMA 基材的界面相容性提高，PPCMA/TPOS复合材料的力学性能、储能模量、损耗模量和复数黏度均高于PPCMA/TPS复合材料；铝酸酯对 TPOS 的预处理促进了 TPOS 在 PPCMA 中的分散，提高了复合材料的拉伸强度，在PPCMA/DL-TPOS体系中，当DL-TPOS含量为40%（质量分数）时拉伸强度达到最大值，与PPCMA相比，提高了4.6倍。
채용용융공혼적방법제비료마래산항접지취탄산아병지（PPCMA）/열소성정분（TPS）、PPCMA/열소성양화정분（TPOS）화PPCMA/DL-TPOS（려산지예처리적TPOS）복합재료，연구정분적양화이급우련제적가입대 PPC 복합재료류변、형태화성능적영향。가입정분후적 PPC 복합재료랍신강도유교대제고，홍외광보결과현시정분화 PPCMA 지간형성료경건작용，저가능시역학성능제고적주요원인；열소성양화정분여 PPCMA 기재적계면상용성제고，PPCMA/TPOS복합재료적역학성능、저능모량、손모모량화복수점도균고우PPCMA/TPS복합재료；려산지대 TPOS 적예처리촉진료 TPOS 재 PPCMA 중적분산，제고료복합재료적랍신강도，재PPCMA/DL-TPOS체계중，당DL-TPOS함량위40%（질량분수）시랍신강도체도최대치，여PPCMA상비，제고료4.6배。
Maleic anhydride grafted poly(propylene carbonate) (PPCMA)/thermoplastic starch (TPS), PPCMA/thermoplastic oxidized starch (TPOS) and PPCMA/DL-TPOS (TPOS modified by aluminate coupling agent) composites were prepared by melt blending. Effects of starch oxidation and content of DL and DL-TPOS on rheological behavior, morphology and mechanical properties of composites were investigated. The results of Fourier Transform Infrared Spectroscopy (FTIR) revealed that the reinforcement in mechanical properties of PPC/starch composites was probably resulted from hydrogen-bonding interaction between carbonyl groups of PPC and hydroxyl groups of starch. The compatibility between PPCMA and TPOS was better than that of PPCMA and TPS. The mechanical property, storage modulus (G′), loss modulus (G″) and complex viscosity (η?) of composites were improved by oxidation of starch. Moreover, the dispersion of TPOS in PPC matrix became better when starch was modified by DL, improving the tensile strength of composites. For PPCMA/DL-TPOS composites, the tensile strength increased by 460% from 2.45 MPa to 13.72 MPa, when DL-TPOS content was from 0 to 40%(mass), while it decreased when the loading of DL-TPOS was 50%(mass). In addition, G′, G″andη? of composites was improved with increasing DL-TPOS content.