Nitrile rubber has excellent oil resistance, abrasion resistance, heat resistance and strong adhesion. It is an ideal raw material for producing oil resistant rubber soles. However, nitrile rubber is a synthetic rubber product with high price. In order to reduce the production cost of nitrile oil resistant rubber soles, many manufacturers began to use reclaimed rubber 2SLYY15 or plastic. The reclaimed butadiene acrylonitrile rubber processed from waste butadiene acrylonitrile rubber and waste butadiene acrylonitrile rubber products retains the basic performance characteristics of butadiene acrylonitrile rubber and has a large oil resistance coefficient. It can be used alone or in combination with butadiene acrylonitrile rubber and plastic to produce oil resistant rubber soles, reducing the cost of raw materials.
1. Vulcanization formula of oil resistant rubber sole produced by nitrile rubber+reclaimed nitrile rubber
70 portions of nitrile rubber, 30 portions of nitrile reclaimed rubber, 5 portions of zinc oxide, 1.5 portions of stearic acid, 1.9 portions of antioxidant RD, 40 portions of carbon black N330, 60 portions of light calcium, 12 portions of dioctyl phthalate, 1.5 portions of accelerator DM, 0.6 portions of accelerator TMTD, and 2 portions of sulfur, totaling 224.5 portions.
2. Nitrile rubber+reclaimed nitrile rubber+chlorinated polyethylene production oil resistant rubber sole vulcanization formula
50 portions of nitrile rubber, 40 portions of nitrile reclaimed rubber, 10 portions of chlorinated polyethylene, 5 portions of zinc oxide, 1.5 portions of stearic acid, 1.9 portions of antioxidant RD, 40 portions of carbon black N330, 60 portions of light calcium, 12 portions of dioctyl phthalate, 1.5 portions of accelerator DM, 0.6 portions of accelerator TMTD, and 2 portions of sulfur; Total: 224.5 copies.
3. Key points for formula design of oil resistant rubber sole mixed with nitrile reclaimed rubber
When using nitrile reclaimed rubber to reduce the production cost of oil resistant rubber soles, nitrile reclaimed rubber can be used alone, or it can be used together with nitrile rubber, neoprene or chlorinated polyethylene.
When producing oil resistant rubber soles from nitrile reclaimed rubber, it is recommended to use thiazole type+thiuram type system as the curing system, which is commonly used in combination with accelerator M/DM/TMTD, or sulfur+accelerator M/DM/TMTD. Use high wear-resistant carbon black N330 for reinforcement, or use it together with an appropriate amount of N774 to improve the processing performance of oil resistant rubber sole and the elasticity and dynamic performance of the finished product; Fill with clay and light calcium. Butadiene nitrile reclaimed rubber oil resistant rubber sole softening plasticizing system can use dibutyl ester, dioctyl ester, etc., with the dosage controlled 20-25 phr.
In actual production, when the nitrile reclaimed rubber is used to produce oil resistant rubber soles with different performance requirements, the proportion of the selected nitrile reclaimed rubber is different; Oil resistant nitrile rubber with high rubber content can even completely replace nitrile rubber. Later, Xiaobian will continue to discuss with you the key points of the production process of using nitrile rubber for oil resistant rubber soles.
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