纳米氧化锌的气流粉碎改性及应用研究  

Jet grinding and surface modification of ZnO nanoparticles and its application

作　　者：曹智[1] 苏小莉[2] 李庆华[1] 许石豪[1] 刘丰[1] 张治军[1] 

机构地区：[1]河南大学特种功能材料教育部重点实验室,河南开封475001 [2]济源职业技术学院冶金化工系,河南济源454650

出　　处：《功能材料》2010年第3期537-540,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2002AA302607)

摘　　要：利用气流粉碎改性工艺,以硬脂酸为改性剂,对纳米氧化锌进行解团聚和表面改性,并借助SEM、XRD、FT-IR和激光粒度分析等对改性产品进行了表征,探讨了改性纳米氧化锌在天然橡胶中的应用。结果表明,与改性前相比,改性纳米氧化锌的解团聚效果明显;颗粒表面亲油疏水,在有机溶剂中有较好的分散性;并且能较好地提高天然橡胶的硫化性能和力学性能。证明该工艺对纳米氧化锌进行表面改性是可行的。Industrial ZnO nanoparticles were modified with stearic acid by the integrated process of jet grinding and surface modification by batch operation.The products were characterized by SEM,XRD,FT-IR and particles size analysis,etc.Furthermore,the effect of modified ZnO nanoparticles used as cure activator on the cure characteristics and mechanical properties of natural rubber was also studied.The results show that the agglomeration of modified ZnO nanoparticles is reduced severely in comparison with initial ZnO nanoparticles.In addition,modified ZnO nanoparticles have much better dispersibility in organic solvents,and the modified ZnO nanoparticles have better effect on the mechanical properties and cure characteristics of natural rubber than the unmodified ZnO nanoparticles.

关 键 词：纳米氧化锌 气流粉碎改性 硬脂酸 

分 类 号：TQ016.1[化学工程]