TY - JOUR
T1 - Tribological properties of chemically bonded polyimide films on silicon with polyglycidyl methacrylate brush as adhesive layer
AU - Sun, Chufeng
AU - Zhou, Feng
AU - Shi, Lei
AU - Yu, Bo
AU - Gao, Ping
AU - Zhang, Junyan
AU - Liu, Weimin
PY - 2006/12/15
Y1 - 2006/12/15
N2 - Polyimide thin films, which possess good stability and film uniformity, are successfully fabricated on single crystal silicon wafers coated with a thin polymer brush by suface-initiated polymerization (SIP) as an adhesive layer. The growth kinetic of polyglycidyl methacrylate (PGMA) brush was studied by the means of ellipsometry. The nano-scale morphology and chemical composition of PGMA brush and polyimide film were studied with atomic force microscopy (AFM), Fourier transform infrared spectrum (FT-IR), and X-ray photoelectron spectroscopy (XPS). The tribological behaviors of the thin films sliding against AISI-52100 steel ball were examined on a static-dynamic friction precision measurement apparatus and UMT-2MT tribometer. The worn surface of the polyimide thin films was investigated with scanning electron microscopy (SEM). The results indicated that the chemically bonded polyimide films exhibited better friction reduction and antiwear behavior compared to the polymide films on bare silicon surface. At a load of 0.5 N and sliding speed of 20 mm s -1 , the durability life of the polyimide thin films is over 25,000 sliding cycles and the friction coefficient is about 0.08.
AB - Polyimide thin films, which possess good stability and film uniformity, are successfully fabricated on single crystal silicon wafers coated with a thin polymer brush by suface-initiated polymerization (SIP) as an adhesive layer. The growth kinetic of polyglycidyl methacrylate (PGMA) brush was studied by the means of ellipsometry. The nano-scale morphology and chemical composition of PGMA brush and polyimide film were studied with atomic force microscopy (AFM), Fourier transform infrared spectrum (FT-IR), and X-ray photoelectron spectroscopy (XPS). The tribological behaviors of the thin films sliding against AISI-52100 steel ball were examined on a static-dynamic friction precision measurement apparatus and UMT-2MT tribometer. The worn surface of the polyimide thin films was investigated with scanning electron microscopy (SEM). The results indicated that the chemically bonded polyimide films exhibited better friction reduction and antiwear behavior compared to the polymide films on bare silicon surface. At a load of 0.5 N and sliding speed of 20 mm s -1 , the durability life of the polyimide thin films is over 25,000 sliding cycles and the friction coefficient is about 0.08.
KW - Polyimide
KW - Surface-initiated polymerization
KW - Tribological properties
UR - http://www.scopus.com/inward/record.url?scp=33751212160&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2006.03.019
DO - 10.1016/j.apsusc.2006.03.019
M3 - 文章
AN - SCOPUS:33751212160
SN - 0169-4332
VL - 253
SP - 1729
EP - 1735
JO - Applied Surface Science
JF - Applied Surface Science
IS - 4
ER -