Reasonable formula design of reclaimed rubber products can make up for the defects of reclaimed rubber raw materials and improve the properties of reclaimed rubber products. Whether its design is reasonable or not is directly related to the service performance and service life of reclaimed rubber products. All reclaimed rubber product recipes need to be designed Follow certain principles, tire reclaimed rubber in the use of the process is no exception. In the actual production, the use of recycled rubber tire production of rubber products, the main need to follow four principles, we can be recorded as "two changes."
1, two changes
(1) Tire reclaimed rubber product formula design should be based on the type of tire reclaimed rubber products, uses, indicators and other aspects of product design in line with their own products, different reclaimed rubber recipes different formulations, reclaimed rubber tire selection and dosage, with Different types of agents and dosage are different;
(2) Tire reclaimed rubber has difference in different seasons, especially the hot summer and the cold winter. Therefore, the reclaimed rubber product formula should be adjusted according to the seasonal changes and the temperature changes in time. Therefore, only one formula should be used throughout the year, More can not expect "a recipe live forever."
2, two unchanged
(1) Sulfur and accelerator dosage calculation principle unchanged
As the rubber reclaimed rubber rubber need vulcanization, reclaimed rubber formulations need to add the necessary curing sulfur and accelerator, otherwise it will result in inadequate curing. Therefore, the design of reclaimed rubber tire recipes, the need to strictly according to the amount of reclaimed rubber designed sulfur accelerator dosage. Generally compared with raw rubber, tire reclaimed rubber products required sulfur and accelerator dosage can increase about 200%, but can not exceed this ratio; tire reclaimed rubber products in the production process of other rubber additives also need to follow a certain amount of mixed With the ratio.
(2) tire reclaimed rubber mixed dosage calculation base unchanged
Usually 100 parts of the reclaimed rubber tire effective rubber hydrocarbon content and 30 parts of plastic equivalent, that is, 100 parts of reclaimed rubber can replace 30 parts of plastic, such as replacing 20 parts of plastic when the amount of reclaimed rubber tire is 20 × 100/30 = 66.7 ≈ 67, 67 tires that need to use recycled rubber; usually designed rubber formulations, the proportion of recycled rubber tire replacement rubber should not exceed 30 copies, otherwise it will affect the overall quality of recycled rubber tire products.
The rubber content of the tire reclaimed rubber produced from different parts of the rubber powder is very different from the index, and the rubber product manufacturer needs to adjust in time when designing the formula.
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