Tire reclaimed rubber is the most widely used regenerative rubber product. Because of the different models and locations of waste tires used and the different production processes, the indexes and performance of tire reclaimed rubber products produced are also different, such as strong strength. The high-strength reclaimed rubber, ultra-thin tire reclaimed rubber with particularly high fineness, environmentally-friendly reclaimed rubber certified by the EU environmental protection, and ordinary reclaimed rubber for various indexes. When using tire reclaimed rubber to produce rubber products, sticky roller phenomenon sometimes occurs, especially the production of ordinary tire reclaimed rubber products. So what causes the sticky roller in the production of tire reclaimed rubber products, and how to solve it?
We all know that in the production of tire reclaimed rubber, most of them use high-temperature desulphurization and degradation. If too much degradation or too much softener is added in the process, the tire regenerated rubber product will become sticky, causing the production of recycled rubber products. The sticking roller phenomenon occurs. Some tire reclaimed rubber manufacturers may even use low-cost coal tar in order to reduce production costs, or change high-quality rosin to petroleum resin, which will cause sticky roller problems in the production of rubber products.
In view of the phenomenon of sticking and rolling of tire reclaimed rubber products, the technical staff of Hebei Hongyun Recycling Plant combined the years of experience of engineers and summarized the following solutions for more practical problems of sticking rollers for rubber products.
1. Increase the amount of stearic acid and paraffin used in the formulation of reclaimed rubber products. In the formulation of tire reclaimed rubber products, stearic acid can not only improve the processability and fluidity of the rubber compound, but also promote the uniform dispersion of the powdery compounding agent and play a lubricating effect. When the tire reclaimed rubber is used to produce the tread rubber, Helps smooth extrusion of tread rubber; paraffin also has a certain degree of lubrication, which improves the rolling and extrusion properties of the compound and helps the product to release smoothly. Therefore, once the sticky roller phenomenon occurs in the production of tire reclaimed rubber products, the amount of stearic acid and paraffin used in the original formula can be increased by 1.2 to 1.5 times to improve the stickiness of tire regenerated rubber products.
2. About 5 parts of black grease and 10 parts of talcum powder are added to the formula of tire reclaimed rubber products. The black grease is a black solid with high elasticity and softness. It is sponge-like and can promote the dispersion of powdery fillers in tire reclaimed rubber products, improve the surface smoothness of rubber products, and reduce the shrinkage of rubber. It is conducive to the rolling and extrusion of rubber products. Talc powder is a white powder with a soft and delicate texture and good lubrication.
3. Add Paraffin rubber to the tire reclaimed rubber formulation. The use of butadiene rubber alone to produce rubber products tends to cause roll-off problems, but it is just opposite to the stuck roller of tire reclaimed rubber products, and it has good compatibility with tire reclaimed rubber. Therefore, tire reclaimed rubber is improved with a small amount of butadiene rubber. Roll off has a good effect.
4. Fillers increase the amount of filler used in tire reclaimed rubber products, and can absorb low-grade components, so that the reclaimed rubber has a “dry” feeling when mixed and improves sticking.
5. Adding a small amount of mold release agent under the cost-allowed conditions significantly relieves the sticky roll phenomenon of tire reclaimed rubber products. The critical surface tension of the rubber release agent is particularly small, and it is difficult to be wetted by the liquid, so that the tire reclaimed rubber product can achieve a smooth release effect. It is currently the easiest operation method to improve the sticking roller of a rubber product.
The above methods are to improve the sticking phenomenon of the products under the conditions of changing the formula of the tire reclaimed rubber products. In addition, the improper roll temperature and the roll length of the open mill in the production of the tire reclaimed rubber products also cause the reclaimed rubber products to be difficult to roll off smoothly. Therefore, in the production process, once the phenomenon of sticking and rolling of tire regenerated rubber products occurs, it is better to control the roll temperature of the open mill below 85 degrees Celsius and increase the roll length of the open mill to about 1.2 times.
Speaking of this, perhaps you may ask, if there is a problem with the tire reclaimed rubber product itself, any solution cannot solve the phenomenon of sticking roller of the reclaimed rubber product. What should this be? Xiao Bian would like to say: Your concern is right, so the majority of rubber products manufacturers in the choice of tire reclaimed rubber, it is best to buy directly from the regular reclaimed rubber factory, and asked them to provide relevant certification, once the quality of reclaimed rubber products, You can find the return or exchange of the reclaimed rubber factory, and do not have to pay for the unqualified quality of the reclaimed rubber products.
Hebei Hongyun reclaimed rubber is a special reclaimed rubber manufacturer with its own registered trademark. It can provide samples for free, and can also provide return and exchange when quality problems occur. The stable supply, high-quality products, and caring service have been the fundamental reason why Hongyun Reclaimed Rubber Factory is favored by many rubber product manufacturers.
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