TIRES AND NATURAL RUBBER

VEHICLE PRODUCTION INCREASES AT BETWEEN 8 AND 9% A YEAR, BUT NATURAL RUBBER PRODUCTION INCREASES AT ABOUT 3% PER YEAR. THEREFORE, IT IS IMPORTANT TO USE AVAILABLE NATURAL RUBBER TO THE BEST ADVANTAGE. FORMULATION OF THE RUBBER IS A COMPROMISE BETWEEN OFTEN CONFLICTING DEMANDS. FOR EXAMPLE, IN WINTER TIRES, OIL-EXTENDED NATURAL RUBBER HAS LESS FRICTION THAN NATURAL RUBBER ON ICE, BUT MORE ON WET ROADS. ITS COLD WEATHER WEAR RESISTANCE IS GREATER THAN SYNTHETIC TREADS, BUT MAY WEAR MORE IF USED YEAR ROUND. IT APPEARS THAT OIL-EXTENDED NATURAL RUBBER OR OIL-EXTENDED NATURAL RUBBER/BUTADIENE RUBBER IS THE BEST COMPROMISE FOR WINTER TIRES USED AS SUCH, BECAUSE GOOD SKID RESISTANCE ON ICE AND WET ROADS ARD THEN COMBINED WITH EXCELLENT WEAR RESISTANCE. NATURAL RUBBER ALSO PLAYS AN IMPORTANT ROLE IN LARGE TIRES AND AIRCRAFT TIRES. LOW HEAT BUILD-UP AND ROLLING RESISTANCE, BUILDING TACK AND MECHANICAL STRENGTH NEEDED FOR RUGGED CONDITIONS OF SERVICE ARE A SET OF PROPERTIES MET ONLY BY NATURAL RUBBER. /HSL/

• Supplemental Notes:
  • Part 1, No 3, PP 1-11, 18 REF
• Authors:
  • Schallamach, A
• Publication Date: 1970

Media Info

• Serial:
  • RUBBER DEVELOPMENTS

Subject/Index Terms

• TRT Terms: Aircraft; Durability; Friction; Oils; Rubber; Skid resistance; Synthetic rubber; Tires
• Subject Areas: Aviation; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00223590
• Record Type: Publication
• Source Agency: Highway Safety Literature
• Files: TRIS
• Created Date: Nov 10 1970 12:00AM