Fast bonding process of silica gel and PET

Abstract

The invention discloses a fast bonding process of silica gel and PET. The fast bonding process comprises the steps: the silica gel is prepared, specifically, the silica gel is provided, the binding surface of the silica gel is sequentially subjected to ultrasonic cleaning, laser treatment and plasma treatment, and then pretreated silica gel is obtained; the PET is prepared, specifically, the PET is provided and subjected to surface plasma treatment; and bonding is conducted, specifically, glue is smeared on the binding surface of the pretreated silica gel, then the binding surface of the PET and the binding surface of the pretreated silica gel are bonded, then the pressure is maintained through a pressure maintaining jig, the pressure maintaining jig is placed into a high-temperature and high-humidity box, then curing is started, the temperature is controlled to be 30-60 DEG C, the humidity is controlled to be 60-90%, the curing time is controlled to be 1-3 H, and after curing, the silica gel and PET bonding structure is obtained. According to the bonding process, inert factors on the surface of the silica gel are improved, the bonding strength between the silica gel and the PET isgreatly enhanced, and the problem of a glue failure between the silica gel and the PET is solved; and meanwhile, under the premise of ensuring the production quality, rapid curing can be achieved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a bonding process, in particular to a rapid bonding process of silica gel and PET. 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 mSiO 2 ·nH 2 O: Does not react with any substance except strong alkali and hydrofluoric acid, insoluble in water and any solvent, non-toxic, tasteless, and stable in chemical properties. 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] Because silica gel itself is an inert material, it contains a large amount of silicone oil. In orde...

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Problems solved by technology

[0003] Because silica gel itself is an inert material, it contains a large amount of silicone oil. In order to facilitate the production and operation of silica gel, a release agent is added again during the molding process. Strong adhesion to any material, making the product easy to unglue

In addition, there are two types of glue for bonding between silicone and PET on the market, one is fast bonding glue, but fast bonding will cause the silicone to harden and lose the softness between silicone and PET, so to be excluded

There is also a need for long-term bonding and curing, generally at least 24H to fully cure, this time is too long, the efficiency is too low

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