Mixing rubber is semi-finished material of rubber products. Generally, the rubber material needs to be parked for a period of time before being put in the next production. Latex recycled rubber has good hand elasticity, high tensile strength, high elongation at break, almost the same performance as natural rubber, and is often used together with natural rubber to produce rubber products to reduce raw material costs. In the production process of rubber products, the latex reclaimed rubber compound after mixing needs a series of additional processing, and naturally, it is also necessary to cool and park these processes.
Latex recycled rubber compounds are very hot after processing, so they must be cooled in time to avoid scorching or sticking. If possible, continuous films can be taken from an open mill or a screw machine with a print head. Automatically cut in pieces, and then through the roller, spray cooling with water or spacer liquid. The film is cooled to below 35°C and parked again.
After the latex reclaimed rubber compound mixture cools down sufficiently, it needs to be parked for a period of time at the iron table at room temperature for 8 to 24 hours, but it cannot be more than 120 hours before it can be used in the next process. The significance of parked rubber latex reclaimed rubbers mainly lies in:
1. The latex compounding compound will be subjected to mechanical force migration and stretching in the mixing process, and shrinkage will occur when the external force is eliminated. Such shrinkage will affect the rubber compounding, and the shrinkage of the compounded compound will decrease after parking for a period of time. Small, conducive to the shape of the finished product, dimensional stability.
2. The latex reclaimed rubber can't be separated from the reinforcing agent, such as carbon black or white carbon, and reacts with the surface groups of the latex reclaimed rubber compound to produce the reinforcing rubber; the latex reclaims the rubber. During the parking process, the rubber compound will continue to disperse these powdery reinforcing agents in the rubber compound, which will improve the uniformity of dispersion and at the same time allow the latex compound rubber to interact with the reinforcing agent again to form a more complete complement. Strong rubber improves the reinforcing effect.
3. Various compounding agents in the process of mixing latex reclaimed rubber, due to the limitation of mixing time, or the self-moisture of the compounding agent, may cause the compounding agent to appear agglomerate phenomenon, and the dispersion is not uniform; during the parking process of the latex reclaimed rubber compounding rubber, Part of the powdery compound that may agglomerate will continue to disperse with the movement of the rubber powder segment, improving the uniformity and stability of the latex reclaimed rubber compound.
4. As the rubber compound is constantly subjected to external mechanical forces in the mixing process, it will have structural fatigue. After the parked latex reclaimed rubber compound, the stress will be relaxed, and the performance of the latex reclaimed rubber product will be improved. In actual production, there are also hot water flowing without stopping.
After rubber compounded with latex reclaimed rubber, after a period of time, some rubber compounds still need to be filtered to remove impurities. We will not discuss them one by one. In short, the latex reclaimed rubber mix must be fully cooled and parked for a period of time before use, to bring convenience to subsequent processing of the latex product, and to improve the performance and stability of the latex reclaimed rubber product. Similar to latex reclaimed rubber, the processing steps after mixing other types of reclaimed rubber are almost the same as those for latex reclaimed rubber. Rubber product manufacturers can refer to the process after mixing latex reclaimed rubber for processing.
In fact, when using latex rubber to produce rubber products, not only do they need to be parked after the end of the mixing process. For example, the newly produced latex reclaimed rubber needs to be parked for a period of time before it can be put in the production of rubber products. In the winter, latex reclaimed rubber is used to produce rubber products. When the latex reclaimed rubber needs to be stored in a warm room for a few hours in advance, their main purpose is to better play the role of latex reclaimed rubber. In addition to parking, latex reclaimed rubber products need to pay attention to many issues when they are produced, such as the adjustment of latex reclaimed rubber formulations, the timing of latex reclaimed rubber addition, and the curing temperature of latex reclaimed rubber.
The recycled latex produced by Hebei Hongyun Reclaimed Rubber Factory includes black latex reclaimed rubber and white latex reclaimed rubber. Among them, Malaysian black natural rubber reclaimed rubber is made of latex yarn imported from Malaysia and miscellaneous waste latex gloves as its main raw material. Regenerated rubber products with tensile strength above 16Mpa can directly replace Vietnam 3L to produce various rubber products, and improve the anti-aging performance and flex resistance of rubber products. It is the best choice for rubber product manufacturers to ensure quality and reduce costs.
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