Industry Share: A low odor high strength acrylic structural adhesive 1

A low-odor and high-strength acrylic structural adhesive comprise A component and B component,

A component comprises Armour hydroxyl ethyl acrylate, 1, 3 butyl glycol, methyl acrylate, methyl acrylate, ABS resin, SBS resin, polyurethane resin, triphenylphosphine, N, N  2 hydroxyethyl toluidine, propyl glycidyl ether oxygen preparation silane, four sodium ethylenediamine tetraacetic acid, methyl hydroquinone, wax powder;

B component includes polyether polyol, plasticizer, benzoyl peroxide, epoxy resin, and wax powder. The weight ratio of each component of component A is as follows: 5 ~ 20 hydroxyl ethyl methacrylate, 1, 3 butyl glycol dimethyl acrylate 15 ~ 30, methyl acrylic acid 5 ~ 20, ABS resin 5 ~ 15, 5 ~ 15 SBS resin, polyurethane resin 15 ~ 30, triphenylphosphine 0. 1 ~ 1. 0, N, N  2 hydroxyethyl of toluidine 0. 1 ~ 1 .0, glycidyl ether oxy propyl trimethoxysilane 0.1 ~ 1.0, tetrasodium ethylenediamine tetraacetate 0.1 ~ 1.0, o-methyl hydroquinone 0.1 ~ 1.0, wax powder 1 ~ 5.

The weight ratio of each component of component B is as follows: polyether polyol 50 ~ 150 parts, plasticizer 5 ~ 30 parts, peroxidized benzoyl 1.5 ~ 10 parts, epoxy resin 15 ~ 200 parts, wax powder 1 ~ 5 parts. Benzoate is preferred as the plasticizer.

The invention relates to A preparation method of low-odor and high-strength acrylic structural adhesive. The preparation method of component A is carried out in accordance with the following steps:

Step 1: According to the following weight of get 5 ~ 20 hydroxyl ethyl methacrylate, 1, 3 butyl glycol dimethyl allyl methacrylate acid ester 15 ~ 30, 5 ~ 20 5 ~ 15, ABS resin, SBS resin 5 ~ 15 to join in the reaction kettle, rising at a rate of about 1 ℃ / min to 75 ℃, 60   to stir 1 3 hours;

Step 2: according to the following weight of 15 to 30 for polyurethane resin, triphenylphosphine 0. 1 ~ 1. 0, N, N  2 hydroxyethyl of toluidine 0. 1 ~ 1. 0 to join to complete the steps in a reaction kettle, maintain 60  the temperature of 75 ℃, keep stirring 50 minutes, stop stirring, cooled to room temperature.

Step 3: In accordance with the following weight parts, 0.1 ~ 1.0 parts of glyceryl ether oxy-propyl trimethoxysilane, 0.1 ~ 1.0 parts of tetrasodium ethylenediamine tetraacetate, 0.1 ~ 1.0 parts of o-methyl hydroquinone, and 1 ~ 5 parts of wax powder are added to the reaction kettle completed in step 2.

While stirring and dispersing, at the same time vacuuming, A component is obtained; B component preparation methods according to the following steps:

Step 1: according to the following weight obtain 50 ~ 150 polyether polyols, plasticizer 5 ~ 30, 15-200 epoxy resin, and wax powder 1 ~ 5 to join the first reaction kettle, rising at a rate of about 1 ℃ / min to 30  50 ℃, fully mixing 1 small, cool to room temperature;

Step 2: Obtain 1. 5-10 parts of benzoyl peroxide according to the following weights. Add them to the first reaction kettle after Step 1, stir for 30 minutes, and vacuum while stirring and dispersing to obtain the B component. According to the above preparation method, the following embodiments are generated: The weight ratio of each component of Embodiment 1, Component A, is 5 hydroxy ethyl methacrylate, 1, 3 butyl glycol dimethyl methacrylate acrylic ester 15, 5 copies of five copies, ABS resin, SBS resin May 15, polyurethane resin, triphenylphosphine 0. 1, N, N  2 hydroxyethyl of toluidine 0. 1, propyl glycidyl ether oxygen preparation silane 0 1 part, 0.1 part tetrasodium ethylenediamine tetraacetic acid, 0.1 part o-methyl hydroquinone, 1 part wax powder. B component weight ratio of each component is polyether polyol 50 parts, plasticizer 5 parts, benzoyl peroxide 1.5 parts, epoxy resin 15 parts, wax powder 1 part.