How to control the hardness of silicone products? In the production process of silicone products, hardness control is a crucial link, which directly affects the performance and user experience of the product.
1. Hardness control method for silicone products
Choose appropriate raw materials
The different hardness of silicone raw materials directly affects the hardness of the final product. Normally, suppliers will provide silicone raw materials with different hardness, such as 30 degrees, 50 degrees, 70 degrees, etc. Producers can choose suitable hardness raw materials according to product requirements.
Mixing silicone rubber material
In actual production, it is often necessary to achieve the desired hardness value by blending different hardness rubber materials. By mixing high hardness and low hardness rubber materials, any hardness between the two can be formulated.
Adjust hardness with silicone oil
Silicone oil can be used to reduce the hardness of silicone gel. Adding an appropriate amount of silicone oil to silicone can effectively adjust the hardness of silicone products. However, it should be noted that excessive silicone oil may affect the physical properties and service life of silicone.
2. Adjustment formula for hardness of silicone products
In practical operation, in order to accurately adjust the hardness of silicone products, the following two formulas can be used for calculation:
Adjustment formula for high hardness of silicone rubber material
If the measured hardness value is higher than the required hardness value, the weight of low hardness rubber material to be added can be calculated according to the following formula:
[Weight of low hardness rubber material to be added in ext}=rac {(measured hardness value) - ext {required hardness value})} {(ext {required hardness value} - ext {low hardness value})} times the weight of ext {rubber material}]
Adjustment formula for low hardness of silicone rubber material
If the measured hardness value is lower than the required hardness value, the weight of the required high hardness rubber material can be calculated according to the following formula:
[Weight of required high hardness adhesive for ext=rac {(ext {required hardness value} - ext {measured hardness value})} {ext {high hardness value} - ext {measured hardness value})} times the weight of ext {adhesive}]
Through these two formulas, producers can adjust the hardness of silicone products according to actual needs to ensure that the products meet specific performance requirements.
The hardness control of silicone products is a precise technical process, through the reasonable selection of raw materials, the allocation of rubber materials and the use of adjustment formulas, can effectively control the hardness of silicone products to meet the needs of different application scenarios. Mastering these technologies is of great significance for improving product quality and production efficiency.
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