Professor James Economy's Group

 

Welcome
Group
Research
  Polymers
  Adsorption Materials
  Composites
  Others
Publications
Facilities
Past Researchers
News
Links
Contact
Home
   

Last modified 08/21/03

This document maintained by the web master.

Material Copyright Economy's Group

Other Advanced Materials

 

[Bactericides Materials] [HDD Lubricants] [New materials for Fuel Cell] [Gas Hydrates]

 

 

Bactericides Materials

In this study, we developed a new kind of antibacterial fibers by chemically coating fiber substrates of glass with colloidal sized silver particles. The antibacterial activities were evaluated against E.coli and compared with their regenerability has been investigated as well.

 

HDD Lubricants

We have developed a new family of aliphatic polyester lubricants for hard disk drive applications that might address some of the above problems. The polar ester groups in the polymer main chain should provide a strong interaction between the lubricant and the carbon overcoat, hence, slow removal or loss, as well as fast recovery may be expected. In addition, polar lubricants may act like solid when the film thickness is below 5 nm, hence, stiction problem, which has been a problem for the amorphous PFPE lubricants, might be greatly reduced.

 

New materials for Fuel Cell

Currently, we focus on the development of alternative membranes for Nafion. There are three goals we are trying to achieve: synthesize membranes that are cheaper, lower methanol crossover than Nafion and keeping high ion conduction even at the temperature above 100oC, i.e. under anhydrous environment.

 

Gas Hydrates

Our Research Plan is :  1). Develop an understanding of the conditions required for gas hydrate formation accompanied by salt separation;  2). Identify approaches to catalyze the formation and decomposition of gas hydrate;  3). Try to find out which of these systems is appropriate for use at shallow depths for economical recovery of  potable water and the working gas  4). Eventually, try to access the methane hydrate sitting at depth of several thousand feet to recover streams of clean water and methane ( a source of fuel).