Cured directly-coiled adhesive tape and preparation method thereof

Abstract

The invention discloses a cured directly-coiled adhesive tape and a preparation method thereof. A sizing material is coated on the PET (polyethylene terephthalate) surface, dried and directly coiled to obtain the adhesive tape, wherein the formula of the sizing material consists of the following materials: an acrylic pressure-sensitive adhesive, a modified epoxy resin curing agent, azodiisobutyronitrile and ethyl acetate. The adopted composite modified epoxy resin curing agent without toxicity or pungent smell is short in ageing time, environment-friendly and pollution-free to the production environment; the adhesive prepared from the modified epoxy resin curing agent has excellent bonding performance, and the coated adhesive tape does not contaminate an adhered object after being peeled and can be reused; an isolation material does not need to be bonded previously when the adhesive is coated on a base material, and the adhesive tape can be directly coiled, so that the man-hour is saved, and the production cost is reduced.

Description

technical field [0001] The invention relates to an adhesive tape, in particular to a curing type direct collection adhesive tape and a preparation method thereof. Background technique [0002] Adhesive tape is generally composed of two parts, a substrate and an adhesive, and two or more unconnected substances are connected together by bonding. Its surface is coated with a layer of adhesive. The earliest adhesives came from animals and plants. In the last century, rubber was the main component of the adhesive, but in modern times various polymers are widely used. Adhesives can stick to things because of the formation of bonds between their own molecules and the molecules of the objects to be connected, and this bond can firmly bind the molecules together. The composition of the binder depends on different types, and there are various polymers. [0003] Pressure-sensitive tape is a special type of tape, which is made by applying a special adhesive (pressure-sensitive adhesiv...

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Problems solved by technology

[0004] In the prior art, there are mainly two deficiencies as follows: 1) The conventional preparation process is to set a layer of isolation material on the surface after coating the pressure-sensitive adhesive on the substrate, and the isolation material is generally a release film or a release film. In the subsequent tape winding operation, the isolation material is peeled off again, and the tape is made into a tape roll that we can buy daily. The use of isolation material not only increases the production cost, but also adds an additional operation link, which consumes 2) In the preparation process of the adhesive for adhesive tape, isocyanate is often used as a curing agent, but the curing agent has a long aging time, high toxicity, and strong pungent smell, which will affect the environment around the production workshop. Great impact on the air environment

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