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An acrylate and acrylate-based technology, applied in adhesives, polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve problems such as easy cracking and degumming, and different thermal expansion coefficients between cured products and acrylic. Achieve high heat resistance, easy glue application and prolong pot life
Active Publication Date: 2021-09-17
临海市吉仕胶粘剂有限公司
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Reactive adhesives include epoxy and UV. They have good strength, but the thermal expansion coefficients of the cured product and acrylic are different, and they are easy to crack and degumming in the change of cold and heat, especially in large-area bonding.
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Embodiment 1-7
[0042] Embodiment 1-7: an acrylic adhesive, comprising component A and component B, the mass ratio of component A and said component B is 20:1.
[0043] The formulation of component A is shown in Table 1. The preparation method of component A is: mix the formula amount of acrylate monomer and thickener, stir and disperse evenly, add the formula amount of stabilizer, accelerator, ultraviolet absorber and other formula components, stir and disperse evenly, Just remove the air bubbles.
[0044] Component B includes 95wt% of plasticizer and 5wt% of initiator; the plasticizer is selected from phthalates; the initiator is selected from benzoyl peroxide. The preparation method of component B is as follows: stir and disperse the plasticizer in the formulated amount evenly, add the initiator in the formulated amount, stir and disperse evenly, and remove air bubbles.
[0045] Component A formula information (unit: parts by mass) of the embodiment 1-7 of table 1
[0046]
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Abstract
The invention discloses an acrylate adhesive. The acrylate adhesive comprises a component A and a component B in a mass ratio of 20: 1, the component A comprises 60-85wt% of acrylate monomers, 15-40wt% of polymethyl methacrylate, 0.01-3wt% of a stabilizer and 0.01-3wt% of an accelerant, the acrylate monomers are selected from methyl methacrylate, ditetrahydrofurfuryl methacrylate, isooctyl methacrylate or lauryl methacrylate, the stabilizer is selected from p-methoxyphenol, hydroquinone, 2, 6-butylated hydroxytoluene and/or EDTA sodium salt, the accelerant is selected from N, N-dimethylaniline, N, N-diethyl aniline, N, N-dimethyl p-toluidine and/or N, N-dihydroxyethyl aniline; the component B is prepared from 80 to 99 weight percent of phthalic acid esters and 1 to 20 weight percent of benzoyl peroxide; the adhesive is suitable for large-area adhesion of acrylic products.
Description
technical field [0001] The invention relates to an acrylate adhesive. Background technique [0002] Acrylic, also known as PMMA or plexiglass, has a chemical name of polymethyl methacrylate. Because of its crystal-like transparency, excellent weather resistance, high surface hardness and surface gloss, and good processing performance, it has been widely used in many industries, such as windows in the construction industry, soundproof doors and windows, etc., light boxes in the advertising industry , signs, signs, display racks, etc., surface panels and covers in the industrial instrument industry, fluorescent lamps, chandeliers, etc. in the lighting industry, and civil sanitary facilities, aquariums, etc. [0003] The bonding of acrylic products is a very critical process in acrylic processing. How to show the clear and transparent characteristics of acrylic and maximize the grade and taste of acrylic handicrafts, the bonding technology plays a pivotal role. At present, the...
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