摘要
研究了PP/纳米TiO2 、PP/普通TiO2 复合材料的流变行为、力学性能和抗菌性能。结果表明 :在PP中加入TiO2 后 ,熔体的表观粘度增大 ,PP/纳米TiO2 复合材料尤其明显 ;熔体流变性对温度的敏感性降低 ,PP的加工温度范围变宽。纳米TiO2 对PP的增韧作用比普通TiO2 更好 ,在 0～ 4%的范围内 ,材料的冲击强度随用量的增加而增大 ;而对材料拉伸性能的影响甚微。PP/纳米、普通TiO2 复合材料都是有抗菌作用 ,PP/纳米TiO2 的抗菌作用相对较强。
The rheological behavior,mechanical properties and antibacterial property of PP/nano TiO 2 and common PP/TiO 2 hybridized composites were studied The results showed with the addition of TiO 2into PP the melt apparent viscosity of the composite increased,and the melt apparent viscosity of PP/nano TiO 2 increased more obviously;the sensitivity of melt rheological behavior to temperature decreased,and the range of the processing temperature of PP broadened The toughening effect of nano TiO 2on PP was better than that of common TiO 2 When the mass fraction of nano TiO 2was 0～4%,the impact strength of the composite increased with the increase of the mass fraction,but the effect on the tensile property was little Both PP/nano TiO 2 and common PP/TiO 2 hybridized composites were antibacterial composites,but the antibacterial property of PP/nano TiO 2 was relatively better than that of common PP/TiO 2
出处
《塑料工业》
CAS
CSCD
北大核心
2003年第8期42-45,共4页
China Plastics Industry
