AB double-sided adhesive for low-residue electronic screens

Abstract

The invention discloses a special AB double-sided adhesive for a low-residue electronic screen. The special AB double-sided adhesive for the low-residue electronic screen is successively provided with a first release layer, a modified silicon layer, a PET substrate layer, an optical adhesive layer and a second release layer from top to bottom, wherein the modified silicon layer comprises the following components in parts by weight: polydimethylsiloxane 100 parts, amino silicone 8-10 parts, sodium methyl silicate 4-6 parts and epoxy resin 2-3 parts. Adhesive components of two sides of the AB double-sided adhesive are modified to improve automatic bubble discharge capacity of the silicon layer, so that after the double-sided adhesive are torn and adhered repeatedly, the bubble discharge capacity can still be excellent, and adhesion difficulty of the double-sided adhesive is reduced; and meanwhile, the light transmittance, the adhesion strength and the shock resistance of the optical adhesive layer are improved, and residual adhesive ratio is reduced. The AB double-sided adhesive is suitable for the field of electronic screens and the like.

Description

technical field [0001] The invention relates to a double-sided adhesive, in particular to an AB double-sided adhesive specially used for low-residue electronic screens. Background technique [0002] With the rapid development of products such as smart phones and tablet computers, in recent years, accessories in these fields have also formed a huge industrial chain, and electronic screen protectors for these products are one of the typical ones. There are many types of screen protectors on the market, but they are generally transparent film materials that rely on static electricity or adhesives to adhere to the screen. The disadvantages of this type of product are easy to fall off, foam, short life, not scratch-resistant, not shock-resistant, not easy to stick, etc. To improve these defects, tempered screen protectors have appeared on the market. [0003] To use a tempered screen protector, you need to use AB double-sided tape to paste the screen and the tempered film. One...

AI Technical Summary

Problems solved by technology

However, in the existing technology, due to the performance limitation of the two-sided adhesive liquid, it is difficult to make the thickness of the AB double-sided adhesive very thin, and the automatic defoaming ability of the side in contact with the screen is relatively poor, and the light transmittance is also affected. certain influence

In addition, the AB double-sided tape has high requirements for bonding, which requires the operator to have a high level of proficiency. If the double-sided tape is repeatedly peeled and pasted, the foam removal performance of the double-sided tape will be seriously reduced.

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