Have You Ever Thought about Where Silicone Can Be Used?

Speaking of silicone, you may not be very familiar with it. If you look at these items in life, you will find that silicone is everywhere. The following introduces the five major processes of silicone products:

【Molding】

Molding is the most common production process. It is mainly completed by the cooperation of the mold, and the shape of the mold determines the shape of the silicone product. Molded silicone products are usually made by putting solid silicone raw materials with added vulcanizers into high-temperature molds and applying pressure through a vulcanizing machine. The hardness of molded silicone is usually 30°C-70°C. This production process is relatively simple and suitable for all silicone products.

【Extrusion】

Extrusion molding, extruded silicone products are usually formed by extruding silicone through an extrusion machine. Generally, the shape of extruded silicone is long strips, and the tubular ones can be cut at will. The shape of the products made by extrusion is relatively simple, mostly in strips. Silicone tubes are widely used in the fields of medical and mechanical equipment. They can also be used as buffers in packaging materials.

【Calendaring】

Silicone rubber is kneaded and mixed with white carbon black, silicone oil, etc. to make a mixed rubber, and then calendered into a sheet. The physical and mechanical properties of the film obtained by calendering are significantly different in the longitudinal and transverse directions. This phenomenon is the calendering effect. Specifically, the longitudinal tensile strength of the film is greater than the transverse direction, the transverse tear elongation of the film is greater than the longitudinal direction, and the longitudinal shrinkage of the film is greater than the transverse direction.

The calendering effect is the result of the orientation of macromolecules and needle-shaped and sheet-shaped compounding agents in the rubber compound along the calendering direction during the calendering process. The size of the calendering effect is related to the composition of the rubber compound, calendering temperature, speed, speed ratio, etc. It is used for larger products, such as silicone sheets and silicone plates.

【Pouring】

Pouring or pouring mold operation method: Pouring or pouring mold is used for relatively smooth or simple products. There is no mold line, which saves time and labor. It is to surround the product or model you want to copy with a plastic plate or glass plate, and pour the vacuumed silicone directly on the product. After the silicone is dried and formed, take out the product, and the mold is formed (Note: The perfusion mold generally uses softer silicone to make the mold, so it is easier to demold and will not damage the product in the silicone mold). It is a combination of solid and liquid, and the application products are such as mobile phone cases, luggage cases, etc.

【Coating】

Quick vulcanization; strong adhesion; good fluidity, easy degassing. Using platinum complex catalysis, non-toxic, no odor; excellent thermal stability and cold resistance (operating temperature -60℃～200℃) After molding, it has good air permeability, heat resistance, and a certain tensile strength; excellent anti-slip performance; no pollution; low hardness; strong bonding with glue. High tear strength; high transparency; good tensile properties.

Wear-resistant, washable, high temperature resistant; high three-dimensional level, smooth, soft, flexible fabric with excellent texture, good elasticity, resistant to water washing and dry cleaning. When applied to cloth, it has anti-aging effect. For example, silicone gloves, rain boots, etc.