High-temperature-resistant pressure sensitive adhesive tape and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant pressure sensitive adhesive tape. The adhesive tape comprises raw materials in parts by weight as follows: 100-120 parts of natural rubber, 80-100 parts of acrylic acid isononyl ester, 75-95 parts of acrylic acid, 75-95 parts of zinc oxide, 70-90 parts of ethyl acetate, 40-60 parts of silicone oil, 40-60 parts of rosin, 30-50 parts of an emulsifier, 20-40 parts of sodium bicarbonate, 10-30 parts of a gasoline-methylbenzene mixture solvent, 2-4 parts of a cross-linking agent and 1-2 parts of an anti-aging agent D. The invention further provides a preparation method of the high-temperature-resistant pressure sensitive adhesive tape. The preparation method comprises steps as follows: S1, 100-120 parts of natural rubber, 80-100 parts of acrylic acid isononyl ester and 75-95 parts of acrylic acid are weighed in weight proportion, natural rubber and acrylic acid isononyl ester are sufficiently mixed and then put into an internal mixer, acrylic acid is added, the mixture is mixed at the temperature of 50-70 DEG C for 0.5-1 h, and a mixed compound A is obtained. The high-temperature-resistant pressure sensitive adhesive tape is simple to prepare, has high high-temperature resistance and is multipurpose and suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of high-temperature-resistant pressure-sensitive adhesive tapes, in particular to a high-temperature-resistant pressure-sensitive adhesive tape and a preparation method thereof. Background technique [0002] With the rapid improvement of social economy and people's living standards, adhesive tape has been fully integrated into all walks of life and people's daily life. Tape is not only widely used, but also has many types, such as: high temperature resistant tape used in high temperature working environment. This type of tape is mainly used in the electronics industry. The temperature resistance is usually between 120 degrees and 260 degrees. It is often used in spray paint and baking paint Leather processing, coating masking and fixing in the process of electronic parts, printed circuit boards and high temperature treatment masking, etc. [0003] In the prior art, ordinary pressure-sensitive adhesives have...

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Problems solved by technology

[0003] In the prior art, ordinary pressure-sensitive adhesives have average heat resistance. At higher temperatures, the heat-oxidative aging resistance is poor, and the pressure sensitivity is easily lost. At this stage, there are relatively few adhesives with high peel strength and high initial viscosity in the market. Pressure-sensitive adhesive with high strength and wide use temperature, for this reason we propose a high-temperature-resistant pressure-sensitive adhesive tape and its preparation method