Latex reclaimed rubber is made of waste natural rubber and waste latex products such as waste rubber cups, waste latex wires, waste latex gloves, waste condoms, etc., through classification, selection, cleaning, disinfection, crushing, desulfurization, filtration and other processes to process a certain plasticity and viscosity, can be processed and vulcanized rubber, mainly used to replace high-priced natural rubber. When using latex reclaimed rubber instead of natural rubber to reduce the production cost of rubber products, a reasonable design formula can further improve the performance of the finished product.
When using latex reclaimed rubber to replace a certain proportion of natural rubber in the production of rubber products, the formula design mainly pays attention to the following three points.
1. Pay attention to the dosage of sulfur and accelerator
When using latex reclaimed rubber to produce rubber products, the dosage of sulfur and accelerator is crucial. Since latex reclaimed rubber contains a certain amount of rubber hydrocarbons, these rubber hydrocarbons need to be converted into cross-linked structures through a vulcanization process. Therefore, it is important to ensure that the amount of sulfur and accelerator is sufficient to meet the needs of vulcanization. Compared with the use of natural rubber, the amount of sulfur and accelerator in latex reclaimed rubber formulations can be increased by about 20% to avoid the problem of insufficient or excessive vulcanization.
It is worth mentioning that even if the amount of sulfur in latex recycled rubber is slightly larger, there will be no frosting phenomenon like natural rubber.
2. Pay attention to the substitution ratio of natural latex reclaimed rubber
When using latex reclaimed rubber to replace natural rubber in the production of rubber products, the effective rubber content conversion algorithm is generally used to determine the proportion of substituted raw rubber according to the effective rubber content in latex recycled rubber, and the amount of recycled rubber should match its effective rubber content. For example, 100 parts of latex reclaimed rubber can replace 75 parts of raw rubber with an effective rubber hydrocarbon content of about 75%.
When using latex recycled rubber to replace part of natural rubber, it is necessary to comprehensively consider the use of the product, the quality requirements, the purpose of matching the recycled rubber, and the market price of the product, etc., first determine the percentage of rubber, and then determine what material to use, what ratio of recycled rubber and natural rubber 2SLYY1124 to use. For example, in the formulation of rubber products with particularly high wear resistance, it is recommended to choose latex reclaimed rubber with high rubber content, and appropriately increase the amount of natural rubber.
Latex reclaimed rubber formula design is a complex process that needs to consider multiple factors, reasonable design of latex reclaimed rubber formula can not only ensure that the performance of rubber products meets the requirements, but also reduce more costs, the key is to correctly calculate the amount of sulfur and accelerator, reasonably determine the amount of recycled rubber substitution, and choose the appropriate material and proportion according to the use and quality requirements of the product. In the future, we will share with you the design points of the formula vulcanization, reinforcement, filling, anti-aging, and softening system of latex reclaimed rubber products.
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