Matte black wear-resistant and high temperature-resistant adhesive tape and preparation method thereof

Abstract

The invention provides a matte black wear-resistant and high temperature-resistant adhesive tape and a preparation method thereof. The matte black wear-resistant and high temperature-resistant adhesive tape comprises a black PI (polyimide) film and a pressure-sensitive adhesive layer which is laminated with the black PI film, wherein the gloss of the matte black wear-resistant and high temperature-resistant adhesive tape is 1 to 3; the black PI film is prepared from the following raw materials and components of PI film, black pigment and a dispersant, and the dispersant can reach 50% to 70% ofoil absorbing value of the black pigment; the pressure-sensitive adhesive layer is prepared from the following raw materials and components of pressure-sensitive adhesive, an epoxy curing agent and ablack pigment, the weight of the epoxy curing agent is equal to 0.5wt% of the weight of the pressure-sensitive adhesive, and the weight of the black pigment is equal to 2.5wt% of the weight of the pressure-sensitive adhesive. The preparation method has the advantages that by changing the adding amount of matte powder, the whole gloss is certainly influenced; when the gloss is reduced, the tensilestrength is also reduced. The matte black wear-resistant and high temperature-resistant adhesive tape has the advantages that the rubber (CS-10) wiping-resistant ability is 500 times without primer exposure under the condition of 1000g load, the high temperature-resistant property is excellent, the 260-DEG C long-term working effect is realized, and the adhesion force of the adhesive on the adhesive tape is good.

Description

technical field [0001] The invention relates to a matte black wear-resistant and high-temperature-resistant adhesive tape and a preparation method thereof, belonging to the technical field of polyimide films. Background technique [0002] With the development of science and technology, various industries have more and more demands for materials with high temperature resistance, high strength, light weight and ultra-thin. As a traditional heat-resistant material, polyimide is in the ascendant, and it is a better way to solve the above problems. For example, in the field of printed circuit boards, due to the continuous reduction in size, the thickness of polyimide is getting lower and lower. In order to play a protective role, it also needs to have certain friction resistance. Among them, the matte hardened coating can not only ensure a certain degree of wear resistance, but also has anti-glare effect, easy to print, and has a very beautiful appearance. For example, the inve...

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Problems solved by technology

However, these ultra-thin polyimide films still have certain defects: 1. They do not have good light-shielding properties; 2. The surface is not wear-resistant, difficult to print, and not beautiful; Dissolved in high boiling point solvents such as DMAC and NMP; 4. Requires two-way stretching process, which is complicated; 5. It is difficult to solve the problem of poor adhesion of acrylic pressure-sensitive adhesive on it; 6. There is no structure of the adhesive layer, which is unpredictable The effect of making tape on the film

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