Butyl rubber is often used as a raw material for the production of thin butyl rubber products with high airtightness such as butyl waterproof sealing tape and self-adhesive butyl rubber sheet, but butyl rubber is expensive, and for the cost of thin rubber products, The investment is high and unstable, and the market competition is fierce. The price of thin butyl rubber products is difficult to increase, and the middle profit is negligible. The price is hard to mention, but the cost is controllable. If you want to make a profit, you must start with the cost1JLYY81.
100 parts of butyl reclaimed rubber, 9 parts of EPDM reclaimed rubber, 3 parts of zinc oxide, 7.7 parts of 4221 reinforcing agent, 7.7 parts of talc, promoter DM or accelerator M0.9 parts, accelerator TMTD 1.35 parts , sulfur 0.9 parts.
Butyl reclaimed rubber is processed from various processes such as selection, classification and desulfurization of waste butyl rubber products. It has the same performance as butyl rubber, and has air tightness, heat resistance, ozone resistance, aging resistance and chemical resistance. Features. The use of butyl reclaimed rubber alone in the formulation to produce thin butyl rubber products can reduce the cost of raw materials while ensuring the performance of butyl rubber. Because the production of thin butyl rubber products, the choice of thin butyl rubber products to produce raw materials should choose high-density, non-impurity butyl reclaimed rubber products.
Butyl rubber products will become hard after aging, and EPDM rubber products will become soft after aging. Adding EPDM reclaimed rubber can alleviate the hardening of thin butyl rubber products after aging, effectively preventing thin butyl rubber. The product ages, prolongs the service life of the product, and improves the high and low temperature resistance of the product.
The accelerator DM or the accelerator M has a small tendency to burn, has good vulcanization flatness, is resistant to aging, is not easily cracked, and has good wear resistance. The accelerator TMTD has a high tendency to scorch, has a large tensile stress and tensile strength, and is soft and soft. The two interact and interact with each other, have good scorch performance, improve vulcanization strength, shorten vulcanization time, improve the physical and mechanical properties of the rubber compound, and improve the aging and wear resistance of the product.
2. Production process
First, the rubber compound, zinc oxide, reinforcing agent and filler are placed in an internal mixer, and the temperature is adjusted to 150 ° C for 7-8 minutes. The film is filtered. Then, the accelerator and sulfur are added to the open mill to park 8 Hours; connector on the joint machine, press the valve, park for 8-24 hours; vulcanization temperature 170 °C, vulcanization time 8 to 9 minutes.
Butyl reclaimed rubber has better fluidity and high plasticity. It is used in the production of thin butyl rubber products without plasticizing, improving the processing technology of rubber mixing, reducing power consumption and saving power costs. For manufacturers of thin butyl rubber products. In terms of it, it saves a cost.
The use of butyl reclaimed rubber alone to produce a thin butyl rubber product can reduce the raw material cost and processing cost while ensuring the airtightness of the product, and the profit of the rubber product manufacturer is significantly improved. Butyl reclaimed rubber has good compatibility with butyl rubber. For rubber products with high rubber content, it can also be produced by using both methods. It can reduce raw material cost while ensuring good performance and service life of rubber products. To enhance the profit margin of rubber products manufacturers, enterprises can obtain higher economic benefits while winning customer trust.