Radial tires are composed of six main components: crown, sidewall, belt layer (generally bias tires are called buffer layers, radial tires are called belt layers), carcass, bead, and inner liner (also called inner liner). composition. Appropriate addition of 2YLYY817 tire reclaimed rubber to the production formula of each component of radial tires can not only reduce the cost of raw materials, but also improve the process performance of the rubber; proper adjustment of the radial tire nylon ply rubber formula containing tire reclaimed rubber can optimize the comprehensive product index.
1. Styrene butadiene rubber + tire reclaimed rubber
75 parts of styrene butadiene rubber, 50 parts of whole tire reclaimed rubber, 3 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant RD, 35 parts of carbon black N550, 8 parts of aromatic oil, 0.2 part of accelerator D, accelerator DM 1 part, 2.3 parts of sulfur; Total: 176.5 parts. The basic physical properties of vulcanizate: Shore hardness 61 degrees, tensile strength 12.54MPa, 300% tensile stress 11.37Mpa, elongation at break 480%.
2. Natural rubber + oil-extended styrene-butadiene + tire reclaimed rubber
60 parts of natural rubber, 41.25 parts of oil-extended styrene butadiene rubber, 20 parts of reclaimed tire rubber, 3 parts of zinc oxide, 2 parts of stearic acid, 1 part of antioxidant RD, 37 parts of carbon black N775, 3.5 parts of aromatic oil, 2 parts of aromatic resin Parts, 2 parts of polycyclopentadiene resin, 1 part of accelerator NS, 2.5 parts of sulfur; total: 175.25 parts. The basic physical properties of vulcanizates: Shore hardness of 54 degrees, tensile strength of 16.8MPa, 300% tensile stress of 6.6Mpa, elongation at break 500%.
3. Natural rubber + styrene butadiene rubber + tire reclaimed rubber
37.5 parts of natural rubber, 37.5 parts of styrene butadiene rubber, 50 parts of reclaimed tire rubber, 3 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant RD, 35 parts of carbon black N550, 8 parts of aromatic oil, 0.2 parts of accelerator D , 0.7 parts of accelerator DM; 2.3 parts of sulfur; Total: 176.2 parts. The basic physical properties of vulcanizates: Shore hardness 60 degrees, tensile strength 14.33MPa, 300% tensile stress 13.86Mpa, elongation at break 305%.
The tire reclaimed rubber added to the nylon ply rubber of radial tires is recommended to choose tread reclaimed rubber or full tire reclaimed rubber to effectively reduce the cost of raw materials under the premise of ensuring product quality. In actual production, the amount of reclaimed tire rubber in nylon cord rubber needs to be determined according to the specific requirements of the product, reclaimed rubber indicators, etc. It is generally controlled at about 20-50 copies. The editor will continue to discuss related issues with you later.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits