Surface treatment process for hydrophilic-group silica gel

Abstract

The invention discloses a surface treatment process for hydrophilic-group silica gel. The surface treatment process for the hydrophilic-group silica gel comprises the following steps: (1) a pluralityof silica gel parts are placed in an emptying jig at intervals; (2) a hydrophilic-group machine is started, and hot gas is discharged; (3) a plurality of hydrophilic-group lamp pipes are turned on from a cold state, and illuminance and a temperature in a tunnel furnace start to rise; and (4) a conveying belt conveys the emptying jig into the tunnel furnace, the hydrophilic-group lamp pipes irradiate the outer surfaces of the plurality of silica gel parts on the emptying jig, high-energy photons irradiated from the hydrophilic-group lamp pipes break oxygen atoms in air, and the reaction equation is that O2 is decomposed into O and O; and meanwhile, the high-energy photons break the structural formula of methyl vinyl silicone rubber in the silica gel parts to obtain CH3, the broken oxygen atoms are reacted with the methyl vinyl silicone rubber to generate hydrophilic groups CHO-, OH- and COH-. The surfaces of the silica gel parts treated through the surface treatment process for the hydrophilic-group silica gel are smooth, and better hand feeling during touch is achieved; and meanwhile, the fitting degree and the antifouling property of the surfaces of the silica gel parts are greatly improved, and in the generation process for the hydrophilic groups, pollution is completely avoided, and higher environment friendliness is achieved.

Description

technical field [0001] The invention relates to the technology in the field of silica gel products, in particular to a hydrophilic-based silica gel surface treatment process. Background technique [0002] Silica gel (Silica gel; Silica) alias: silicic acid gel is a highly active adsorption material, which is an amorphous substance, and its chemical formula is mSiO2 nH2O; it does not react with any substance except strong alkali and hydrofluoric acid. Insoluble in water and any solvents, non-toxic and tasteless, chemically stable. Various types of silica gel form different microporous structures due to their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many characteristics that other similar materials cannot replace: high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength. [0003] Silicone products are more and more used in our lives, such as: keybo...

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Problems solved by technology

[0004] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a hydrophilic-based silica gel surface treatment process, which effectively solves the problem of the surface of the existing silica gel products by modifying the silica gel products. It feels rough to the touch, sticky, oily, sticky, and less comfortable

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