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Self-adhesive liquid silicone rubber

Views: 0     Author: Site Editor     Publish Time: 2021-02-04      Origin: Site


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In the past two decades, composite components have been paid more and more attention. There are a number of reasons for this: increased cost pressures and increased demands on the quality, function and design of components. By selecting different materials to create composite components, manufacturers can combine multiple functions into a single component, while giving designers greater design flexibility. A common composite component consists of an elastic soft component and a hard component that enhances the component's strength and gives it a specific shape. Hard components are usually made of metals, but suitable thermoplastics are increasingly being used.

In this kind of soft-hard composite component, the soft component mainly plays the role of sealing, shock absorption and sound absorption. Today, silicone elastomers are being favored by more and more manufacturers, silicone has chemical inert, biocompatible, high temperature resistance, low temperature flexibility, anti-aging and durable elasticity, especially suitable for medical equipment, contact with food or medicine, and automotive applications such as harsh conditions.

However, unless it has been specially modified, it is difficult for silicone to stick to other materials. In order to make the traditional silicone elastomer have good bonding force, it is necessary to pretreat the hard surface. That means extra work for component manufacturers. For this reason, self-adhesive technology has emerged, which enables permanent chemical bonding between hard and soft components. With specially modified self-adhesive liquid silicone rubber, no surface pretreatment of hard components is required, and manufacturers can mass produce multicomponent components containing silicone elastomers as well as thermoplastics or metals using the two-component injection molding process very quickly and cost-effectively.

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