The use of reclaimed rubber to produce rubber products can not only reduce raw material costs, but also ensure product quality and improve processing performance. However, sometimes the use of reclaimed rubber for the production of rubber products may result in an insufficient surface brightness. Why? Is there a defect in the recycled rubber product itself? In fact, the use of reclaimed rubber to produce light and bright rubber products is actually very simple!
1, choose fine reclaimed rubber products
Whether the surface of the reclaimed rubber product is smooth and smooth is directly related to the fineness of the reclaimed rubber product. Generally, the finer the reclaimed rubber, the higher the brightness of the rubber products produced, such as the production of 3-5mm wall thickness hose need to use more than 60 mesh reclaimed rubber, 2mm hose reclaimed rubber raw materials must reach 80 mesh or more, the thinner the product The higher the fineness of reclaimed rubber raw materials needed.
2, choose high quality accessories
If the brightness is not enough when producing black recycled rubber products, the amount of carbon black can be increased in an appropriate amount. When choosing carbon black, it is necessary to select the appropriate type of carbon black according to the needs of its own rubber products, and avoid using low-quality carbon black; when producing color recycled rubber products, it is necessary to use pigments that match the color of their own products. Some inexpensive, color-unfriendly pigments cause unnecessary losses.
3, adjust the reclaimed rubber formula
The use of reclaimed rubber to produce rubber products with insufficient gloss requires consideration of formulation problems: increase the amount of glue, increase softeners, reduce the amount of fillers, increase the amount of resin, add N220, add PE wax or dioctyl ester, improve the brightness of reclaimed rubber products
4, keep the mold clean, clean and smooth, to ensure that recycled rubber products are not contaminated in the mold.
5, uneven distribution of reclaimed rubber additives or the amount of inaccurate weighing will also cause the surface of reclaimed rubber products to be not smooth, which requires the carefulness and responsibility of the operators!
If the above methods are not effective for improving the surface brightness of recycled rubber products, then you need to consider the use of brighteners for rubber products!
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