3D printing of porous polyimide for high-performance oil impregnated self-lubricating

被引：47

作者：

Yang, Chang ^{[1
]}

Jiang, Pan ^{[2
]}

Qin, Hongling ^{[1
]}

Wang, Xiaolong ^{[2
,3
]}

Wang, Qihua ^{[2
]}

机构：

[1] China Three Gorges Univ, Hubei Key Lab Hydroelect Machinery Design & Maint, Yichang 443000, Peoples R China

[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[3] Yantai Zhongke Res Inst Adv Mat & Green Chem Engn, Yantai 264006, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2021年 / 160卷

基金：

中国国家自然科学基金;

关键词：

Porous polyimide; Self-lubricating; 3D printing; Oil storage structure; BEHAVIOR; COMPOSITES; FRICTION;

D O I：

10.1016/j.triboint.2021.107009

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Three-dimensional (3D) printing of porous polyimide (PI) with good oil storage capability for self-lubricating is realized by direct ink writing of poly(amide acid) (PAA) precursor ink followed by post thermal treatment and template removal. The ink is comprised of PAA and polymethyl methacrylate (PMMA) microspheres, where the PMMA microspheres serve as both the pore-forming agent and the rheology modifier to realize high-precision porous PI objects. The printed porous PI exhibited good mechanical performance and thermal stability, and good oil storage capability to various lubricant oils to achieve self-lubricating. Importantly, various parts with desirable complex structures, bearing retainers for example, can be readily accomplished. It is therefore promising for manufacturing high-performance lubricating parts, especially those with high complexity.

引用

页数：9

共 23 条

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