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May 23, 2023

Why do silicone products have insufficient elasticity?

When it comes to the manufacturing of silicone products, one of the main issues that can arise is the lack of elasticity in the final product. This can be a frustrating and costly problem for manufacturers, as it can result in weakened product performance, decreased lifespan, and increased risks of failure or breakage.

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So, why does this lack of elasticity occur in silicone products? There are actually several potential factors that can contribute to this issue, including:

 

1. Poor curing process: Silicone products must undergo a curing process in order to fully harden and develop their elastic properties. If this process is not carried out correctly, the resulting product may have uneven or incomplete curing, resulting in reduced elasticity.

 

2. Under-cured silicone: Even if the curing process is done correctly, if the silicone is not given enough time to cure fully, it may result in a product that is too soft or lacks elasticity.

The operation of personnel, the modulation of machines, and the coordination of raw materials in the molding process of silicone product factories are all key factors for the toughness and defects of products. Sometimes, during the vulcanization process, in order to increase production efficiency and increase production output, workers reduce the vulcanization time to produce products that become soft. To increase production, it is necessary to increase the temperature to reach a certain equilibrium rate while reducing the time, Otherwise, the product will experience various adverse phenomena. It is recommended to control the product's time and vulcanization temperature appropriately during the production process.

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3. Over-cured silicone: On the other hand, if the silicone is left to cure for too long, it may become too hard and brittle, resulting in reduced elasticity and a higher likelihood of cracking or breaking.

 

4. Poor quality silicone materials: The quality of the silicone used in the manufacturing process can also impact the final product's elasticity. Lower quality silicone materials may have inconsistent or poor elastic properties, resulting in a lack of elasticity in the final product.

 

5. Inconsistent mixing: The preparation and mixing of the silicone material is also crucial to ensure that the final product has the desired elasticity. If the mixing process is inconsistent or the wrong proportions are used, the resulting product may lack elasticity.

For raw materials, ordinary silicone may encounter some problems, such as substandard service life, poor toughness, and insufficient rebound. This is because adding too many additives to the silicone raw material leads to different performance of the product, such as silicone oil and white carbon black, which leads to confusion in the production performance. The silicon atoms in the silicone resin are damaged, and the softness decreases, leading to stickiness and poor fluidity. This leads to a decrease in the tensile strength of the product after high-temperature molding, and the product will not show up after production is completed, However, after a period of use, under various environmental conflicts, product deformation, decreased rebound rate, and product adhesion will gradually occur.

Among them, "white carbon black" is the main reason for the insufficient toughness of the product. White gray black is one of the main synthetic materials of silicone rubber, and the white carbon black used in different hardness material environments is also different. Adding these additives appropriately can also make the surface activity in the raw materials.

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Overall, there are several factors that can contribute to a lack of elasticity in silicone products. To mitigate this issue, manufacturers should ensure that they are using high-quality silicone materials, following proper procedures for curing and mixing, and monitoring the production process closely to catch any inconsistencies or errors early on.

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