Ordinary rubber V-belt rubbing requires the rubber material to have good flexural fatigue resistance, a certain tensile stress, good adhesion with the cord, heat resistance, aging resistance, low heat generation during use, generally made of natural rubber, styrene-butadiene rubber or neoprene rubber and glue as raw materials, the appropriate amount of tire reclaimed rubber can effectively reduce the cost of raw materials under the premise of ensuring the performance of rubber V-belt.
1. Ordinary rubber V-belt vinylon canvas cloth rubbing rubber, mixed with tire reclaimed rubber vulcanization formula
65 parts of natural rubber, 25 parts of styrene-butadiene rubber, 10 parts of tire tread reclaimed rubber, 5 parts of zinc oxide, 2.3 parts of stearic acid, 1 part of antioxidant A, 1 part of antioxidant D, 10 parts of carbon black N330, 18 parts of carbon black N774, 40 parts of light calcium carbonate, 1.5 parts of coumarone resin, 3 parts of pine tar, 0.45 parts of accelerator M, 0.85 parts of accelerator DM, 0.05 parts of accelerator TMTD, 1.85 parts of sulfur; Total 185 copies.
2. Ordinary rubber V-belt cord layer glue (wiping rubber) mixed with tire reclaimed rubber vulcanization formula
45 parts of natural rubber, 20 parts of neoprene, 35 parts of tire tread reclaimed rubber, 3.5 parts of zinc oxide, 1.5 parts of stearic acid, 1.3 parts of magnesium oxide, 1 part of antioxidant D, 5 parts of carbon black N330, 10 parts of carbon black N774, 6 parts of light calcium carbonate, 5 parts of clay, 5.5 parts of coumaron resin, 4 parts of dibutyl phthalate, 0.8 parts of accelerator DM, 0.6 parts of sulfur; Total 144.2 copies.
3. Ordinary rubber V-belt rubber, mixed with tire reclaimed rubber formula design skills
(1) Vulcanization system: ordinary rubber V-belt rubbers are mostly used when mixing tire reclaimed rubber, and the accelerator is generally used in combination with M and DM or CZ and NOBS; The rubber compound containing styrene-butadiene rubber can appropriately increase the amount of accelerator; Increasing the amount of zinc oxide appropriately can improve the thermal conductivity of the rubber compound.
(2) Reinforcing filling system: The combination of reinforcing carbon black and semi-reinforcing carbon black can significantly improve the physical and mechanical properties of ordinary rubber V-belt rubbers containing tire reclaimed rubber, such as tensile strength, tear strength, wear resistance and elasticity, etc., and further improve the processing technology performance of rubber compounds.
(3) Softening and plasticizing system: use softeners in an appropriate amount, such as aromatic oil, pine tar, coumaron resin, etc., to improve the processing performance of rubber and improve adhesion.
Tire reclaimed rubber is processed from waste tire rubber powder as raw material, has the basic performance characteristics of rubber, and has good compatibility with natural rubber, styrene-butadiene rubber, butadiene rubber, etc., and can be used in combination with the above-mentioned general rubber E4LYY123 in an appropriate proportion to prepare ordinary rubber V-belt rubber; Reasonably control the proportion of reclaimed rubber, appropriately adjust the formula and production process parameters, reduce costs and further improve the comprehensive index and aging resistance of rubber V-belt.
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