New materials based on polytetrafluoroethylene
Polytetrafluoroethylene has excellent chemical stabili ty,good dielectric properties,and the record low fric tion factor.It is weather-resistant,biologically inert, and nontoxic and does not age. These properties prede termined its wide use in many fields of activity,such as atomic and chemical industries, machine building, power engineering,all types of transport,electrical en gineering,medicine,sport,and household uses.How ever,there are some factors that limit a wider use of this material. Technical problems are related to its cold flow,low thermal conductivity and wear resistance,and poor adhesion. Technological difficulties are due to the insolubihty of the polymer and the high viscosity of its melt,which rules out the use of liquid-phase technolo gies.Environmental problems are associated with large amounts of waste of manufacture of PTFE articles and the difficulty of its recycling. The basic limitation is economic,which is due to the high cost of the polymer.
V.M.Buznik
Baikov Institute of Metallurgy and Materials Science,Russian Academy of Sciences,Leninskii pr.49,Moscow,119991 Russia Fluoropolymer Materials and Nanotechnologies Consortium,Moscow,Russia
国际会议
The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)
浙江嘉兴
英文
1-3
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）