Shanxi reclaimed rubber manufacturers talk about the mixing process characteristics of pure reclaimed rubber products
Huajun Tire Factory
The complete use of recycled rubber to produce rubber products can significantly reduce raw material costs, however,Shanxi reclaimed rubber manufacturersIt is said that the molecular structure and performance characteristics of recycled rubber as waste rubber products are different from those of raw rubber. Therefore, the use of recycled rubber to produce rubber products requires appropriate adjustment of the mixing process to improve the quality of recycled rubber mixing and lay a good foundation for the subsequent processing of rubber products. So, what problems should be paid attention to in the mixing process of pure recycled rubber production rubber products?
1. Use an internal mixer.
Shanxi reclaimed rubber factory said that the open mixer and the internal mixer are the most commonly used rubber mixing machines in the rubber products industry at present. The internal mixer works regularly, which is helpful for mixing uniformity and avoids problems such as uneven mixing, local scorching and foaming during the mixer. If there is no internal mixer equipment, the roll distance of the open mixer must be adjusted to the minimum value and the number of rolls must be increased to ensure the uniformity of mixing of reclaimed rubber.
2. Pure reclaimed rubber mixed rubber method.
Shanxi reclaimed rubber manufacturer said that the roller distance of the rubber mixing machine should be appropriately reduced, and the roller distance should be adjusted to 2-3mm after 4-5 times of deep processing. After the film is porous, zinc oxide, accelerator, antioxidant, paraffin wax and other compounding agents should be added, and then the filler should be slowly added until the mixing is finished. When using pure reclaimed rubber to produce rubber products, the compounding agent must be added step by step, which can not only improve the uniform dispersion of the compounding agent in the hb reclaimed rubber, but also give the rubber good mixing process performance. When the compounding agent is added to a certain extent, the reclaimed rubber will not have holes again. The roller problem improves the quality of the reclaimed rubber mixture.
Shanxi reclaimed rubber manufacturer said that before mixing pure reclaimed rubber, it is better to slightly plasticate reclaimed rubber with an internal mixer, and then add a compounding agent to ensure that the temperature of the internal mixer is 110 ℃ and a certain mixing pressure is maintained. When adding reclaimed rubber to a large internal mixer, attention should be paid to increasing the capacity. If conditions permit, mix 5-15kg of the refined compound with the reclaimed rubber to be refined.
Keywords: recycled rubber automobile cushion belt