Production process of two-component acrylic adhesive


Raw material specification and consumption quota
Raw material specification and consumption quota (kg) :
A: methyl methacrylate (industrial)180 ~ 220; Hydroxyethyl methacrylate (industrial)30; ABS(s

Production process of two-component acrylic adhesive 

Raw material specification and consumption quota

Raw material specification and consumption quota (kg) :

A: methyl methacrylate (industrial)180 ~ 220; Hydroxyethyl methacrylate (industrial)30; ABS(solid, industrial)35 ~ 50; Hydrogen peroxide (industrial)15; Methacrylate enhancer (homemade)15

Part B: methyl methacrylate (industrial)120 ~ 180; Hydroxyethyl methacrylate (industrial)35 ~ 95; Nitrile butadiene rubber (solid, industrial)30 ~ 40; Reducing agent amine (industry)15; Methacrylic acid (industrial)15

2 process

Put methyl methacrylate, stabilizer and pigment (red) into the dispensing kettle. After stirring and dissolution, successively put hydroxyl ethyl methacrylate, reinforcing monomer and ABs, and place them at room temperature to make the rubber swell up. Hot water heating jacket, stirring, keep the kettle temperature 55 ~ 70 ℃, time of 3 ~ 6 h. When nitrile butadiene rubber completely dissolves, stop heating. Cool down, add peroxide and stir until evenly dispersed.

In with plastic kettle into methyl methacrylate and pigments (blue), stir to dissolve, in turn into hydroxyl ethyl methacrylate, monomer, nitrile rubber plastication, room temperature placed rubber swelling, hot water heating jacket, stirring, 50 ~ 60 ℃ when put into methyl acrylic acid and reducing agent, insulation and stirring 6 h, stop the heating, cooling, adding accelerator beaten, discharging to part B.

Product morphology of two-component acrylate structure adhesive

In the market, acrylate fasteners are generally sold in the form of bottom coating and double main dosage form, and are usually packed in polyethylene, glass or aluminum containers with clear marks to distinguish two components A, B (or A, B).

The so-called substrate type is that one part of the REDOX initiator system is dissolved in an appropriate solvent for the use of the primer. Another group is distributed in the main glue. The primer type is first applied when the primer is applied, followed by several minutes after cooling.

So-called double main formulations, essentially like coat type, also is the separation of oxidant and reducing agent b two-component glue, but look from the shape of a, b two components are almost identical (color differ only), on the use ratio is more easy to master, namely in the adhesive on both sides of a visual volume ratio 1:1 glue or repeat glue, folded after rub fault location can be with each other. This is conducive to a larger area of adhesion, but also reduce the waste of glue. This kind of glue also can mix even after besmear glue (and the bottom besmear is inadvisable to do so), but can be used to match so now, should not match more.

No matter the bottom coating or double main dosage form, once the adhesive is closed, it can not be opened or loose, it must be positioned for a period of time, compacted to the degree of preliminary curing, which is a long time, short-sighted adhesive type and room temperature. The practical strength can be achieved by 0.5 ~ 1h.

The adhesive can be used to bond metal, plastic, jewelry, glass and composite materials quickly. General surface treatment of adhesive materials can achieve high adhesive strength, and for metal, even oil surface adhesion.



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