Recycle rubber

Tires. As with MSW disposal, state and local communities have sought increased utiUty assistance in waste tire management. In the United States, scrap tires are generated at the rate of one tire per person per year, and only 20% are reused or recycled in some fashion. Stockpiles exceed 2 x 10 scrap tires (see Recycling, rubber). 

The mbber was ground and treated. It was then washed and the mbber steam devulcani2ed and formed to shape where it could then be reincorporated into virgin mbber compounds. An improvement on this technique was the use of alkaH digestion (see Recycling, rubber). 

Many grades of recycled rubber produced from grinding and heating of vulcanized rubber products such as tyres, baby bottle nipples and other goods are also available. Although reclaimed rubber offers some processing advantages, its use has declined in recent years because of the extensive use of blended polymers. 

Myhre, M. and MacKillop, D.A., Rubber recycling, Rubber Chem. TechnoL, 75, 429, 2002. 

Swor, R.A., Jensen, L.W., and Budzol, M., Ultrafine recycled rubber, Rubber Chem. TechnoL, S3, 1215, 1980. 

Dierkes, W., Solutions to the rubber waste problem incorporating recycled rubber, Rubber World, 214, 25, 1996. 

Bauman, A.D., High-value engineering materials from scrap rubber. Rubber World, 212, 30, 1995. Bagheri, R., Wilbams, M.A., and Pearson, R.A., Use of surface modified recycled rubber particles for toughening of epoxy polymers, Polym. Eng. Sci., 37, 245, 1997. 

Michael, H., Scholz, H., and Mennig, G., Blends from recycled rubber and thermoplastics, Kautsch. Gummi Kunst., 52, 510, 1999. 

Ismail, H. and Suryadiansyah, S., Thermoplastic elastomers based on polypropylene/natural rubber and polypropylene/recycle rubber blends. Polymer Test., 21, 389, 2002. 

Garderes, P., Reusable materials made from recycled rubber, process for the preparation and use, Buro. Patent Appl, 1,362,889 A1 20,031,119, 2003. 

According to E.W.M.C. International Inc., the Emery microwave process has been used commercially to recycle rubber tires and process medical waste. Research and development is currently being conducted on the application of the technology to treat contaminated media. All information is from the vendor and has not been independently verified. 

NARRA 2003. Tire Recycling in Europe. North American Recycled Rubber Association, Whidby, Ontario. World Wide Web Address www. recycle.net/recycle/assn/narra/europe.html... 

In 1995, about 28-30 x 106 tires were retreaded (54). Retreading has been the most cost-effective alternative to recycling rubber. However, worn retreaded tires usually are discarded in a landfill. Approximately 10% of discarded automobile tires and 55—70% of tmck and bus tires are retreaded (55). 

Electrical generation -scrap tire fuel [RECYCLING - RUBBER] (Vol 21)... 

Paper mills -hydraulic fluidsfor [HYDRAULIC FLUIDS] (Vol 13) -pumps for [PUMPS] (Vol 20) -scrap tire fuel [RECYCLING - RUBBER] (Vol 21) -steam system for [STEAM] (V ol 22)... 

---