High-strength tire recycled rubber is a kind of recycled and renewable environmental protection material, according to strong elongation and other indicators accounting compared with natural rubber raw material price is lower, can effectively reduce the cost of raw materials, reduce the dependence on natural resources, with the characteristics of recycling and renewable. In the production of seismic isolation rubber bearing, the use of high-strength tire recycled rubber as the main raw material can reduce the cost by more than 15%, and the refining process is simple without plasticization, compared with the original rubber formula can reduce the use of carbon black and zinc oxide, antioxidants and other auxiliary materials, Hongyun high-strength tread reclaimed rubber reference vulcanization formula is as follows:
High strength tire reclaimed rubber 60kg,1502 styrene-butadiene rubber 3kg, 100% black latex reclaimed rubber 5kg, N330 carbon black 2kg, light calcium carbonate 5kg, activated zinc oxide 0.6kg, stearic acid 0.2kg, RD antioxidants 0.2kg, gumaron 0.3kg, paraffin wax 0.2kg, polyethylene glycol 0.4kg, DM accelerator 0.3kg, M accelerator 0.2kg, TMTD accelerator 0.08kg, sulfur 0.55kg. The vulcanization temperature is 145-155 °C, and the vulcanization time is determined according to the thickness of the product.
HY high strength tire recycled rubber production shock isolation rubber bearings precautions:
1、The type and dosage of vulcanizing agent are adjusted according to specific needs, commonly used sulfur, nitrogen sulfide and peroxide, etc., no special demand sulfur vulcanization can be. The choice of accelerator and antioxidant can be optimized according to the curing rate and anti-aging performance. The selection of packing can increase or decrease the amount of carbon black according to the index requirements of the seismic isolation rubber support, and mix part of the anti-slip super wear-resistant nitrile rubber powder to adjust the wear resistance and permanent deformation of the support.
2、In the process of mixing rubber,it is necessary to pay attention to the mixing time and temperature to ensure that YE3-801Y high-strength tire reclaimed rubber is fully mixed with other formulas on the basis of low-temperature rubber mixing as much as possible. Comparing and parking the mixed rubber can restore the degree of crosslinking and plasticity, and improve the product performance index.
The use of high-strength tire recycled rubber instead of natural rubber to produce shock-isolation rubber bearings has the advantage of lower price and recycling. By reasonably optimizing the vulcanization formula and paying attention to the mixing process, seismic isolation rubber bearings with good performance can be produced. The application of high-strength tire recycled rubber in rubber isolation bearings has increased the profits of enterprises and enhanced the market competitiveness of products.
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