Facile fabrication and tribological properties of self-lubricating polyurethane materials with sponge-like structure

doi:10.3144/expresspolymlett.2019.64

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Facile fabrication and tribological properties of self-lubricating polyurethane materials with sponge-like structure
	Yang, B. P.1; Cui, J. B.1; Mu, B.1; Cui, J. F.1; Guo, J. H.1; Wang, X.2
刊名	EXPRESS POLYMER LETTERS
	2019-08
卷号	13 期号:8 页码:759-770
关键词	material testing nonsolvent-induced phase separation (NIPS) porous self-lubricating materials wear and friction
ISSN号	1788-618X
DOI	10.3144/expresspolymlett.2019.64
英文摘要	Inspired by the lubrication mechanism of human articular cartilage tissue, the porous self-lubricating polyurethane (PU) materials with micron-meter pore were fabricated by non-solvent induced phase separation (NIPS) method with 60 wt% N,N-dimethylfonnamide (DMF) as a coagulation agent. The scanning electron microscopic (SEM) images demonstrated that the cross-section morphology of the materials is similar to that of the sponge and adjacent macropores were connected by interpenetrating pores to exhibit an 'ink-bottle' type pore structure. Meanwhile, the porosity of the porous self-lubricating PU materials could be controlled by adjusting the PU solution concentrations and the oil content increased as the increasing of porosity. The results of centrifugation/heating test indicated that the porous self-lubricating PU materials have an excellent oil retention performance owing to the pore structure. The tribological properties of porous self-lubricating materials with different porosity under various loads and sliding velocities were investigated by a block-on-ring wear tester which revealed that excellent friction reduction and wear resistance properties of the porous self-lubricating materials were achieved by the lubricating oil squeezed from pores which the friction coefficient of the materials significantly reduced, from 0.174 to 0.078 with the increases of oil content. Furthermore, the lubrication mechanism of porous self-lubricating PU material was discussed as well.
资助项目	Provincial Youth Science and Technology Foundation of Gansu[1506RJYA089]
WOS研究方向	Polymer Science
语种	英语
出版者	BUDAPEST UNIV TECHNOL & ECON
WOS记录号	WOS:000469938600008
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31676]
专题	石油化工学院
通讯作者	Mu, B.
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Gansu, Peoples R China 2.Northwest Univ Nationalities, Sch Chem Engn, Lanzhou 730030, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Yang, B. P.,Cui, J. B.,Mu, B.,et al. Facile fabrication and tribological properties of self-lubricating polyurethane materials with sponge-like structure[J]. EXPRESS POLYMER LETTERS,2019,13(8):759-770.
APA	Yang, B. P.,Cui, J. B.,Mu, B.,Cui, J. F.,Guo, J. H.,&Wang, X..(2019).Facile fabrication and tribological properties of self-lubricating polyurethane materials with sponge-like structure.EXPRESS POLYMER LETTERS,13(8),759-770.
MLA	Yang, B. P.,et al."Facile fabrication and tribological properties of self-lubricating polyurethane materials with sponge-like structure".EXPRESS POLYMER LETTERS 13.8(2019):759-770.