UV light curing acrylate polymer coating for bopp and preparation method thereof
A technology of acrylate and alkyl acrylate, which is applied in the field of UV light-curing acrylate polymer coatings for BOPP and its preparation, can solve the problems of bonded materials falling off, large volume shrinkage, poor weather resistance, etc., and achieve good adhesion Good knot strength and adhesion, good flexibility, simple and fast process
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Embodiment 1
[0044] Embodiment 1: Preparation of UV photocurable acrylate polymer coating for BOPP
[0045] (1) In parts by weight, 150 parts of toluene is placed in a reactor with a stirrer and a condenser, and 40 parts of glycidyl acrylate, 50 parts of ethoxyethoxyethyl acrylate, 10 parts of methyl acrylate and 2 parts of azobisisobutyronitrile, stirred and mixed evenly in a nitrogen atmosphere, heated to 75°C, reacted for 0.5h, then added 1 part of azobisisobutyronitrile, continued to react for 10h, added 0.5 parts of tetrabutylammonium bromide, 0.2 parts of polymerization inhibitor hydroquinone, 12 parts of acrylic acid, heated to 102°C for 4 hours to prepare acrylate prepolymer S1;
[0046] figure 1 For the infrared spectrogram of the acrylate prepolymer S1 that step (1) makes, as can be seen from the figure, at 1621cm -1 A double bond absorption peak appeared at , indicating that the double bond of acrylic acid was successfully incorporated into the terpolymer system, thereby intro...
Embodiment 2
[0049] Embodiment 2: Preparation of UV photocurable acrylate polymer coating for BOPP
[0050] (1) In parts by weight, take 200 parts of cyclohexanone and place it in a reactor with a stirrer and a condenser tube, and add 10 parts of glycidyl acrylate, 80 parts of ethoxyethoxyethyl acrylate parts, 10 parts of ethyl acrylate, 3 parts of initiator azobisisovaleronitrile, stir and mix evenly in an environment of nitrogen, raise the temperature to 80°C, react for 0.6h, then add 1 part of azobisisovaleronitrile, continue After reacting for 15 hours, 1 part of α,α-diethoxyacetophenone, 0.5 part of p-benzoquinone and 20 parts of acrylic acid were added, and the temperature was raised to 110° C. for 5 hours to prepare acrylate prepolymer S2. Do an infrared test on S2, the results show that at 1621cm -1 A double bond absorption peak appeared at , indicating that the double bond of acrylic acid was successfully inserted into the terpolymer system, thereby introducing a photocurable gro...
Embodiment 3
[0053] Embodiment 3: the preparation of UV photocurable acrylate polymer coating for BOPP
[0054] (1) In parts by weight, take 180 parts of xylene and place it in a reactor with a stirrer and a condenser tube, and add 20 parts of glycidyl acrylate and 50 parts of ethoxyethoxyethyl acrylate in sequence , 30 parts of propyl acrylate, 2.5 parts of azobisisoheptanonitrile, stirred and mixed evenly in a nitrogen atmosphere, heated to 78°C, reacted for 0.7h, then added 1 part of azobisisoheptanonitrile, and continued to react for 12h , adding 0.6 parts of tetrabutylammonium bisulfate, 0.3 parts of methyl hydroquinone, and 15 parts of acrylic acid, and raising the temperature to 105° C. for 4.5 hours to prepare acrylate prepolymer S3. Do an infrared test on S3, from the results, it can be seen that at 1621cm -1 A double bond absorption peak appeared at , indicating that the double bond of acrylic acid was successfully inserted into the terpolymer system, thereby introducing a photo...
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