摘要
以脂肪胺、芳香胺、脂环胺的不同组合和异氰酸酯为稠化剂,在不同的工艺条件下制备一系列的聚脲润滑脂;利用扫描电子显微镜(SEM)对润滑脂皂纤维微观结构进行表征;探讨不同的稠化剂组成、不同制备工艺对聚脲润滑脂的微观结构和性能的影响。结果表明:单纯均匀颗粒状稠化剂比纤维与颗粒状复合的稠化剂所制备的聚脲脂具有更优的性能;纤维结构以单根形式存在为主的聚脲润滑脂性能优于纤维结构为多根纤维聚集为一股,各股之间交织的聚脲润滑脂。
Using aliphatic amines, aromatic amines and alicyclic amines in different combinations and isocyanate as thickeners, a series of polyurea greases were prepared with different process conditions. The soap fiber microstructure of the grease was characterized by using scanning electron microscopy（SEM）. The effects of different thickener composition and the preparation process on microstructure and properties of the polyurea grease were researched. The results show that poly- urea grease with simple uniformly granular thickeners has better performance than that with fiber and particulate composite thickeners. Polyurea grease with fibrous structure mainly in the form of single fiber is superior to that with fiber structure in the form of the aggregated bunch of fibers interwoven between each other.
出处
《润滑与密封》
CAS
CSCD
北大核心
2012年第7期5-9,共5页
Lubrication Engineering
基金
国家重点基础研究发展计划(973计划)资助项目(2011CB706603)
关键词
聚脲润滑脂
稠化剂
制备工艺
结构和性能
polyurea grease
thickeners
preparation process
structures and properties
