热塑性淀粉/黄麻复合材料的研究  

Study on the Thermoplastic Starch/Jute Fiber Composite

作　　者：田雅娟[1] 刘纾言[1] 刘岚[1] 陆璐[1] 韩雪[1] 

机构地区：[1]辽宁省高校高分子材料应用技术重点实验室沈阳化工学院,辽宁沈阳110142

出　　处：《塑料工业》2009年第10期28-31,共4页China Plastics Industry

基　　金：沈阳化工学院博士启动基金

摘　　要：以玉米淀粉为原料,以甘油和尿素为增塑剂制备了热塑性淀粉(TPS),并与黄麻(F)进行共混制备了复合材料(TPS/F)。对共混条件以及黄麻用量对材料力学性能和耐水性的影响进行了研究。结果表明:在转矩流变仪中转速越高越有利于淀粉的塑化。以尿素为增塑剂制备的热塑性淀粉(UTPS)的拉伸强度(13 MPa)高于以甘油为增塑剂的热塑性淀粉(GTPS)的拉伸强度(7 MPa),而在加入黄麻后,当黄麻质量分数为20%时,GTPS/F的拉伸强度高达26.8 MPa,高于UTPS/F。黄麻的加入也提高了UTPS的耐水性,但GTPS的耐水性仍较差。Thermoplastic starch （riPS） was prepared by using corn starch as raw material and glycerol and urea as plasticizers. The TPS/jute fiber composites （TPS/F） were then prepared by adding jute fiber into TPS. The processing conditions and effects of the amount of jute fiber on the mechanical properties and water-resistance of TPS/F were also studied. The results indicated that ： the higher the rotation speed, the better the plasticizing of the starch. The TPS made from urea plasicizer （UTPS） had higher tensile strength （ 13 MPa） than that of TPS from glycerol （GTPS） （7 MPa）. With up to 20 wt% of jute fiber, GTPS/F achieved tensile strength as high as 26. 8 MPa, much higher than that of UTPS/F. The addition of jute fiber into TPS improved the water resistance of UTPS, but the water resistance of GTPS/F remained rather poor.

关 键 词：热塑性淀粉 甘油 尿素 黄麻 力学性能 耐水性 

分 类 号：TB332[一般工业技术—材料科学与工程]