ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Poly(vinyl alcohol) (PVA) hydrogel is a promising articular cartilage biomaterial. In thispaper, the effects of different variable factors on the friction coefficient of Poly(vinyl alcohol)(PVA) hydrogel were investigated when sliding against stainless steel ball by ball-pan tribometer.Factors included lubrication condition, sliding speed, diameter of stainless steel ball, and load. Itwas shown that the free water in PVA hydrogel has an excellent lubrication on the counterparts. Thefriction coefficients have little difference between dry and lubricants lubrication condition at initialfriction test. With the friction test time prolonged, friction coefficient of PVA hydrogel under drycondition increased rapidly. Friction coefficient decreased with the increase of sliding speed and thediameter of stainless steel ball, and increased with the increasing load. The rising rate of frictioncoefficient at low load region is obviously larger than that at high load region
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.1297.pdf
