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Liquid Silicone Rubber Properties

Views: 231     Author: Jasmine     Publish Time: 2023-08-02      Origin: Site


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Liquid Silicone Rubber Properties

Liquid silicone rubber (LSR) has been the material of choice for making silicone components and goods since the 1970s. LSR has several applications in a variety of markets, including those for consumer, medical, infant, and automotive goods. LSR is frequently used in those disciplines due to its distinct chemical composition and traits.

Learn more about LSR's characteristics and why using it for your products may be the best option.

Liquid Silicone Rubber (LSR): 3 Benefits

Consider liquid silicone rubber (LSR) when selecting materials to create essential, long-lasting components. Since our company's foundation in 2002, LSR has been the main material we process in our LSR, LSR two-shot, LSR multi-shot, and LSR overmolding injection molding cells, making GC a pioneer in the field. There is no better partner for your silicone rubber component needs than GC, and no one is more skilled at offering specialized value-added solutions to satisfy clients' particular needs, thanks to the company's decades of expertise and team of professionals.

Due to its traits and chemical properties, LSR is the perfect material for a variety of industrial applications. Continue reading to find out more about liquid silicone rubber's benefits, or get in touch with GC to learn how our team of professionals can provide you with value-added solutions.

Silicone Rubber Chemical Makeup

The chemical composition of silicone rubber is what gives it its distinct physical characteristics. An elastomer called silicone rubber is essentially made up of a siloxane bond (-Si-O-Si-), a chain of molecules. This chain functions as the "backbone" of silicone rubber, to which a variety of organic chemical groups can be added to change the material's mechanical properties.

The siloxane bond strength of silicone rubber makes it different from other elastomers. The strength of the siloxane bond is 433 kJ/mol, whereas the binding energy of carbon bonds is 355 kJ/mol. Its increased heat resistance, chemical stability, and electrical insulation are all a result of this.

In addition, silicone bonds have weak intermolecular interactions, allowing other chemical groups linked to them to easily spin. Liquid silicone rubber offers a high level of compressibility, elasticity, robustness, and weatherability as a consequence.

LSR's Mechanical Properties

Different silicone rubber grades have various material characteristics. One of the reasons LSR is employed in so many different applications is its adaptability. Liquid silicone's mechanical qualities make it a fantastic material choice for automotive components that must survive extreme heat and vibration, as well as medical goods for medication delivery or pumping applications that need strength, flexibility, and repeatability.

The quick curing and low compression set of silicone rubber, together with its resistance to tearing, heat, water, and oil, along with its transparency and electrical insulation, as well as its general strength and long life, are some of its most important material characteristics. LSR may be used in a range of conditions, including immersion in water, oil, or solvents; exposure to wind, rain, and UV radiation over lengthy periods of time; and temperatures between -40°C and 200°C (-40°F to 392°F). Even the most demanding applications can withstand the material qualities of the different grades of LSR.

LSR Offers Innovative Responses to Engineering issues.

LSR resists water and doesn't degrade when in contact with solvents. Additionally, it comes in a number of colors and hardness levels, giving it a flexible alternative for a wide range of items. LSR is also a low-vicosity substance, which means it flows very readily during the molding process, making it ideal for use with high-cavitation molds for demanding production levels. LSR makes it easier to produce products with complicated design elements, including undercuts, thin features, tiny micro-parts, and complex component geometries, giving product designers greater flexibility and leeway.


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