TY - JOUR
T1 - Synergy of hyperbranched polysiloxane and MoS2/rGO heterostructured particles for enhancing polyimide bonded solid lubricating coatings
AU - Yang, Kaiming
AU - Yuan, Junshan
AU - Zhang, Yuanbo
AU - Liu, Rui
AU - Feng, Weixu
AU - Shang, Gaofeng
AU - Yan, Hongxia
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/12
Y1 - 2022/12
N2 - The weak adhesion and tribological properties of polyimide (PI) restrict its practical application as bonded solid lubricating coatings in high-tech fields. Herein, a novel PI bonded solid lubricating coating was prepared using hyperbranched polysiloxane containing Si-O-C chain segments (HBPSi) and MoS2/reduced graphene oxide (rGO) heterostructured particles. Surprisingly, the adhesion, average coefficient of friction, wear life and load carrying capacity of the PI bonded solid lubricating coating can achieve level 1, 0.03, 550 s and 3400 N, respectively. In particular, the average coefficient of friction in the stabilization stage is reduced by 91.4 % compared to the pure PI coating, which is superior to that of most reported polyimide coatings. This is attributed to the synergistic enhancement effect of “soft-hard” particles between HBPSi and MoS2/rGO heterostructured particles. Furthermore, this work provides an important direction for the design and preparation of high-performance bonded solid lubricating coatings.
AB - The weak adhesion and tribological properties of polyimide (PI) restrict its practical application as bonded solid lubricating coatings in high-tech fields. Herein, a novel PI bonded solid lubricating coating was prepared using hyperbranched polysiloxane containing Si-O-C chain segments (HBPSi) and MoS2/reduced graphene oxide (rGO) heterostructured particles. Surprisingly, the adhesion, average coefficient of friction, wear life and load carrying capacity of the PI bonded solid lubricating coating can achieve level 1, 0.03, 550 s and 3400 N, respectively. In particular, the average coefficient of friction in the stabilization stage is reduced by 91.4 % compared to the pure PI coating, which is superior to that of most reported polyimide coatings. This is attributed to the synergistic enhancement effect of “soft-hard” particles between HBPSi and MoS2/rGO heterostructured particles. Furthermore, this work provides an important direction for the design and preparation of high-performance bonded solid lubricating coatings.
KW - Adhesion
KW - Bonded solid lubricating coatings
KW - Hyperbranched polysiloxane
KW - Reduced graphene oxide
KW - Tribological properties
UR - https://www.scopus.com/pages/publications/85138193117
U2 - 10.1016/j.porgcoat.2022.107183
DO - 10.1016/j.porgcoat.2022.107183
M3 - 文章
AN - SCOPUS:85138193117
SN - 0300-9440
VL - 173
JO - Progress in Organic Coatings
JF - Progress in Organic Coatings
M1 - 107183
ER -