Are there any requirements for raw materials for silicone parts?

Silicone parts have no requirements for raw materials, in modern industrial manufacturing, silicone parts are widely used in various fields because of their unique physical and chemical properties. However, the performance and quality of silicone parts largely depend on the selection of their raw materials.

The primary requirement of silicone parts for raw materials is material purity. High purity silica gel raw materials can ensure that the parts have stable chemical properties during the manufacturing process, reducing the impact of impurities on the performance of the parts. For example, in the medical field, silicone parts need to have a high degree of biocompatibility and chemical stability, which requires that the raw material cannot contain impurities that are harmful to the human body. Therefore, when selecting silica gel raw materials, it is necessary to ensure that its purity meets the relevant standards to meet the needs of specific applications.

In addition to purity requirements, the hardness of silicone parts is also a key factor in the selection of raw materials. The hardness of silica gel directly affects the support and flexibility of parts. If the hardness is too high, the part may be too stiff to adapt to complex shape and stress changes; If the hardness is too low, the part may be too soft and easy to deform or damage. Therefore, when choosing silicone raw materials, it is necessary to select silicone materials with appropriate hardness according to the specific use and working environment of the parts.

Temperature resistance is another important requirement of silicone parts for raw materials. Silicone parts need to maintain stable performance in different temperature environments, including brittleness resistance at low temperatures and heat resistance at high temperatures. This requires that raw materials have excellent temperature resistance and can maintain stable chemical and physical properties under extreme temperature conditions. For example, in the automotive industry, silicone parts need to be able to withstand the high temperature environment in the engine compartment, which requires the raw material to have excellent heat resistance.

Dimensional accuracy and shape integrity are also important requirements for raw materials for silicone parts. Silicone parts often need to be customized according to specific sizes and shapes, which requires a high degree of plasticity and processability of the raw material. In the manufacturing process, raw materials need to be precisely moulded and processed to ensure the dimensional accuracy and shape integrity of the parts. If the plasticity and processing properties of raw materials are not good, it may lead to inaccurate parts size or incomplete shapes, which affects their use effect.

In addition, silicone parts also have certain requirements for the physical properties of raw materials. For example, elastic resilience and wear resistance are important properties that silicone parts need to have during use. The silicone parts with strong elastic recovery ability can recover quickly after being subjected to external force and maintain stable shape and performance. Silicone parts with good wear resistance can reduce wear and damage during long-term use and extend service life. These performance requirements need to be considered in the selection of raw materials.

Chemical properties are another key requirement of silicone parts for raw materials. Silicone parts need to be able to maintain stable performance in the face of various chemicals, including acid, alkali, salt and other corrosive substances. This requires that raw materials have excellent chemical resistance and can maintain stable chemical properties when exposed to these chemicals. At the same time, raw materials also need to have good chemical stability to avoid chemical reactions during use that lead to performance degradation.