α-磷酸锆对热塑性淀粉塑料的改性研究  

Studies of Modification of α-Zirconium Phosphate to Thermoplastic Starch

作　　者：薛灿[1] 银鹏[1] 杨政[1] 郭斌[1,2,3] 李盘欣 XUE Can YIN Peng YANG Zheng GUO Bin LI Pan-xin(College of Science, Nanjing Forestry University, Nanjing 210037, China Agricultural and Forest Products Processing Academician Workstation of Henan province, Luohe 462600, China , Post-Doctoral Research Center of Nanjieeun Group, Luohe 462600, China)

机构地区：[1]南京林业大学理学院,江苏南京210037 [2]河南省农林产品深加工院士工作站,河南漯河462600 [3]南街村集团博士后科研工作站,河南漯河462600

出　　处：《塑料工业》2017年第1期18-20,35,共4页China Plastics Industry

摘　　要：通过挤出注塑工艺制备了α-磷酸锆(α-Zr P)改性的热塑性淀粉塑料,研究了不同含量的α-Zr P对其拉伸强度、冲击强度、耐水及转矩流变性能的影响。结果表明,当α-Zr P含量为0.2%时,淀粉塑料的拉伸强度从未加时的1.94 MPa达到最高的4.5 MPa,断裂伸长率有所下降;冲击强度由50.4 k J/m2增加到55.32 k J/m2;表面接触角由46.34°增加到70.46°,耐水性改善明显;转矩流变曲线表明此时具有较高的峰值扭矩,加工性能有所下降。The alpha-zirconium phosphate modified thermoplastic starch （α-ZrP/TPS） plastics were prepared by extrusion and injection molding. The effects of different content of α-ZrP on mechanical, impact, water resistance and torque rheological properties of α-ZrP/TPS were studied. The results indicat that the maximum values of tensile strength reached 4. 5 MPa at 0.2% α-ZrP addition compared with 1.94 MPa of the unmodified TPS. In the meantime the elongation at break decreases while the impact strength increases from 50. 4 kJ/m^2 to 55.32 kJ/m^2, the contact angle is enhanced from 46.34° to 70. 46°, which proves that the water resistance is apparently improved. The torque rheological curves show that the peak torque of α-ZrP/ TPS increases obviously compared with TPS, not favorable for processability.

关 键 词：淀粉塑料 Α-磷酸锆 阳离子淀粉 插层 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]