Novel composite silica gel for flexible mobile phone shell

Abstract

The invention relates to the technical field of electronic products, in particular to a novel composite silica gel for a flexible mobile phone shell. The composite silica gel includes a silica gel material, a reinforced elastomer, carbon black, hydroxy silicone oil, a crosslinking agent, an antistatic auxiliary agent, and a platinum vulcanizing agent. The reinforced elastomer is an elastic material prepared by compounding an inorganic filler and an organic high molecular polymer, and the silica gel is a polyester modified silica gel to which a monoamino-modified silicone block copolymer is added; the crosslinking agent is DCP or DBHP; the antistatic auxiliary agent is one of or a mixture of more of four lithium salt components including LiClO4, LiAsF6, LiBF4, and LiPF6. The thermal stability and cold resistance of the composite silica gel are enhanced, and a made silica gel sleeve can still maintain a good elastic recovery force in a high-temperature state and is not easily deformed.

Description

technical field [0001] The invention relates to the technical field of electronic products, in particular to a novel composite silica gel for a flexible mobile phone case. Background technique [0002] Today's electronic products such as mobile phones, tablet computers, and notebook computers are getting better and better in performance and have more and more functions. We can handle various problems such as office, entertainment, and shopping on these products. However, with the improvement of product performance, the precision of equipment parts is also increasing geometrically, so the protection requirements of these electronic products are also getting higher and higher. In order to improve the anti-drop and impact resistance, most users will equip these electronic products with protective cases or cases. [0003] These fall-proof protective covers are mainly made of metal, silicone and plastic. Among them, the metal material has a good protective effect, but the textur...

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Problems solved by technology

[0003] These fall-proof protective covers are mainly made of metal, silicone and plastic. Among them, the metal material has a good protective effect, but the texture is poor and the production cost is also high.

The degree of plastic material is low and the protection is good, but it is easy to age

The silicone material has good elasticity, the best anti-drop performance, good skin-friendly, and comfortable touch. However, the heat conduction effect of the silicone material is poor, and it is difficult to dissipate the heat during the use of electronic products. Continued heat will cause the performance of the equipment to decline, and this This temperature will also affect the performance of silica gel, making the elastic recovery effect of silica gel worse. After being stretched, the permanent deformation rate of the material will increase, which will lead to the weakening of the bonding strength between the protective cover and electronic products. The product is easy to fall off, and the protective cover loses its use value

The mechanical properties of silica gel are also prone to deterioration in low temperature environments. The decrease in temperature will accelerate the attenuation of the elasticity of silica gel, and extremely low stability settings will cause problems such as aging and cracking of silica gel.

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