Ordinary rubber sheet is a sheet product made of rubber as the main material with a certain thickness and a large area, which is widely used, generally with natural rubber, styrene-butadiene rubber, butadiene rubber or recycled rubber for single or combined use, and the raw rubber content is controlled among 20% and 40%. Tire reclaimed rubber is made from waste tire rubber through crushing, desulfurization, refining and other processes, and can be used alone or combined with natural rubber and synthetic rubber to produce ordinary industrial rubber sheets, effectively reducing the cost of raw materials.
1. Natural rubber/tire reclaimed rubber is used to produce ordinary rubber sheet vulcanization formula
75 parts of natural rubber, 25 parts of tire tread reclaimed rubber, 4 parts of zinc oxide, 1.5 parts of stearic acid, 1 part of antioxidant A, 1 part of paraffin, 27 parts of carbon black N330, 74 parts of light calcium carbonate, 86 parts of barite powder, 11 parts of liquid coumaron resin, 0.54 parts of accelerator D, 1.16 parts of accelerator DM, 1.4 parts of sulfur; Total 308.6 copies.
Physical properties of vulcanized rubber: hardness is about 70 degrees, tensile strength is about 9MPa, and elongation at break is about 420%.
2. Natural rubber/butadiene rubber/tire reclaimed rubber is used to produce ordinary rubber plate vulcanization formula
25 parts of natural rubber, 25 parts of butadiene rubber, 50 parts of tire tread reclaimed rubber, 2.5 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant A, 0.5 parts of paraffin, 18 parts of carbon black N330, 90 parts of stone powder, 2 parts of coumarone resin, 0.5 parts of accelerator DM, 0.5 parts of accelerator M, 0.1 part of accelerator TMTD, 1.5 parts of sulfur; Total 217.6 copies.
Physical properties of vulcanized rubber: hardness is about 65 degrees, tensile strength is about 5.5MPa, and elongation at break is about 340%.
3. Natural rubber/styrene-butadiene rubber/tire reclaimed rubber is used to produce ordinary rubber plate vulcanization formula
30 parts of natural rubber, 20 parts of styrene-butadiene rubber, 50 parts of tire tread reclaimed rubber, 2.5 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant, 1 part of paraffin, 15 parts of carbon black N330, 40 parts of light calcium carbonate, 85 parts of barite powder, 0.5 parts of accelerator D, 0.5 parts of accelerator DM, 1 part of accelerator M, 1.5 parts of sulfur; Total 249 copies.
Physical properties of vulcanized rubber: hardness is about 75 degrees, tensile strength is about 9MPa, and elongation at break is about 340%.
The glue content of the above ordinary rubber plate formula is among 20%-30%.
When tire reclaimed rubber is used in combination with natural rubber and general synthetic rubber to produce ordinary rubber sheets, sulfur-accelerator system is mostly used; Appropriately increasing the amount of fillers, such as clay, calcium carbonate, barite powder, etc., can further reduce the cost E4LYY1122 raw materials; Engine oil and coumeron resin are used as softeners to improve processing technology and adjust the hardness of rubber compounds. The use of tire reclaimed rubber in ordinary rubber sheets can not only reduce the cost of raw materials, but also improve the performance of rubber processing technology and the comprehensive cost index. In the follow-up, Xiaobian will share with you the key points and precautions of the production process of ordinary rubber sheets in the production of tire reclaimed rubber.
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