Acid-resistant and temperature-resistant emulsion type acrylic acid pressure-sensitive adhesive and preparation process thereof
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An acrylic pressure-sensitive adhesive and emulsion-type technology, which is applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve the problem that the performance of emulsion-type acrylic pressure-sensitive adhesives is difficult to have acid resistance and temperature resistance at the same time, and achieve The effect of low cost and simple method
Active Publication Date: 2020-09-29
绿色轻化科技发展(北京)有限公司
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[0005] The embodiment of the present invention aims to solve the technical problem that the performance of the emulsion-type acrylic pressure-sensitive adhesive is difficult to have both acid resistance and temperature resistance at the same time. It aims at the technical deficiency of the existing emulsion-type acrylic pressure-sensitive adhesive, and provides an acid-resistant >80°C / 4h, acid-resistant and temperature-resistant emulsion-type acrylic pressure-sensitive adhesive with temperature resistance >120°C / 1h performance, and its preparation process
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Embodiment 1
[0158] Implementation example 1: According to the embodiment of the present invention, the formula of acid-resistant and temperature-resistant emulsion type acrylic pressure-sensitive adhesive is the embodiment standard;
[0159] Lauryl Acrylate: 4.50%
[0160] 2-ethylhexyl acrylate: 46.50%;
[0161] Acrylic acid: 0.60%;
[0162] -2-hydroxyethyl acrylate: 0.60%;
[0163] Anionic sodium lauryl sulfate: 0.95%;
[0164] Ammonium persulfate: 0.13%;
[0165] Tert-butyl hydroperoxide: 0.05%;
[0166] Ammonia: 0.18%;
[0167] Amino resin: 0.80%;
[0168] Deionized water: 45.69%;
Embodiment 2
[0169] Implementation Example 2: Based on Example 1, the increase of lauryl acrylate is 1.50%, and the decrease of 2-ethylhexyl acrylate is 1.50%;
[0170] Lauryl acrylate: 6.00%;
[0171] 2-ethylhexyl acrylate: 45.00%;
[0172] Acrylic acid: 0.60%;
[0173] -2-hydroxyethyl acrylate: 0.60%;
[0174] Anionic sodium lauryl sulfate: 0.95%;
[0175] Ammonium persulfate: 0.13%;
[0176] Tert-butyl hydroperoxide: 0.05%;
[0177] Ammonia: 0.18%;
[0178] Amino resin: 0.80%;
[0179] Deionized water: 45.69%;
Embodiment 3
[0180] Implementation Example 3: Based on Example 1, the increase of lauryl acrylate is 2.50%, and the decrease of 2-ethylhexyl acrylate is 2.50%;
[0181] Lauryl acrylate: 7.00%;
[0182] 2-ethylhexyl acrylate: 44.00%;
[0183] Acrylic acid: 0.60%;
[0184] -2-hydroxyethyl acrylate: 0.60%;
[0185] Anionic sodium lauryl sulfate: 0.95%;
[0186] Ammonium persulfate: 0.13%;
[0187] Tert-butyl hydroperoxide: 0.05%;
[0188] Ammonia: 0.18%;
[0189] Amino resin: 0.80%;
[0190] Deionized water: 45.69%;
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Abstract
An acid-resistant and temperature-resistant emulsion type acrylic acid pressure-sensitive adhesive relates to resin packaging, sealing and fixing in the fields of optical lenses, optical materials, electronic information industry and other materials, and comprises a monomer, an emulsifier, an initiator, a residual monomer treating agent, an acid-base number neutralizer, a curing agent and deionized water. According to the technical scheme, a pressure-sensitive adhesion structural mechanics principle is used as a core, lauryl acrylate (LA) and 2-ethylhexyl acrylate (2-EHA) sequence combinationinteraction is emphasized to adjust the acid resistance to be greater than 80 DEG C / 4 hours, and a performance index that the temperature resistance is greater than 120 DEG C / 1 hour is also constructed. The embodiment of the invention discloses an acid-resistant and temperature-resistant emulsion type acrylic acid pressure-sensitive adhesive, which is an oil-to-water benzene-free, halogen-free andformaldehyde-free water-based product, not only solves the problem that a normalized product is restricted by solvent type pressure-sensitive adhesives and harms of organic solvents, but also breaksthrough the technical barriers of acid resistance and temperature resistance accumulated by emulsion type acrylic pressure-sensitive adhesives, and is beneficial to coating, processing and using in the fields of materials such as optical lenses, optical materials and electronic information industries.
Description
technical field [0001] The embodiments of the present invention belong to resin encapsulation, sealing and fixing in the fields of optical lenses, optical materials, electronic information industry materials, etc., and in particular relate to an acid-resistant and temperature-resistant emulsion type acrylic pressure-sensitive adhesive and its preparation process. Background technique [0002] At present, the existing solvent-based rubber series pressure-sensitive adhesives, solvent-based silicone pressure-sensitive adhesives, solvent-based acrylic pressure-sensitive adhesives, and imported emulsion-type acrylic pressure-sensitive adhesives, because of their acid-resistant and temperature-resistant adhesion, sealing and fixing Function, has been widely used in optical lenses, optical materials, electronic information industry and other fields. Among them, the production and supply channels of a small number of solvent-based rubber series pressure-sensitive adhesives in China ...
Claims
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