Thermo-mechanical and tribological properties of SU-8/h-BN composite with SN150/perfluoropolyether filler  

作　　者：Anand Singh RATHAUR Jitendra KKATIYAR Vinay Kumar PATEL 

机构地区：[1]Department of Mechanical Engineering,Govind Ballabh Pant Institute of Engineering and Technology Ghurdauri,Pauri Garhwal,Uttarakhand 246194,India [2]Department of Mechanical Engineering,SRM Institute of Science and Technology,Kattankulathur Campus,Chennai,Tamil Nadu 603203,India

出　　处：《Friction》2020年第1期151-163,共13页摩擦（英文版）

摘　　要：In this study, SU-8 and its composites are fabricated by blending 10 wt.% hexagonal boron nitride(h-BN) fillers with/without lubricants, such as 10 wt.% base oil(SN150) and 20 wt.% perfluoropolyether(PFPE). The thickness of SU-8 and its composites coating is fabricated in the range ~100–105 μm. Further, SU-8 and its composites are characterized by a 3D optical profilometer, atomic force microscopy, scanning electron microscopy, a thermal gravimetric analyzer, a goniometer, a hardness tester, and an optical microscope. Under a tribology test performed at different normal loads of 2, 4, and 6 N and at a constant sliding speed of 0.28 m/s, the reduction in the initial and steady-state coefficient of friction is obtained to be ~0.08 and ~0.098, respectively, in comparison to SU-8(~0.42 and ~0.75), and the wear resistance is enhanced by more than 103 times that of pure SU-8. Moreover, the thermal stability is improved by ~80–120 ℃, and the hardness and elastic modulus by ~3 and ~2 times that of pure SU-8, respectively. The SU-8 composite reinforced with 10 wt.% h-BN and 20 wt.% PFPE demonstrated the best thermo-mechanical and tribological properties with a nano-textured surface of high hydrophobicity.

关 键 词：SU‐8 boron nitride perfluoropolyether(PFPE) base oil(SN 150) in‐situ lubrication 

分 类 号：TB33[一般工业技术—材料科学与工程]