UV curing ink for printing PE materials
A technology of ink and pigment, applied in the field of ink preparation, can solve problems such as deinking, achieve fast curing speed, good adhesion, and broad market application prospects
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Embodiment 1
[0014] (1) Preparation of phthalic anhydride polypolyol solution: Weigh 200g of phthalic anhydride polypolyol and add it into 300ml propyl acetate solution, stir at 80°C at a speed of 600-900r / min to fully dissolve it, and obtain phthalic anhydride polypolyol Alcoholic solution;
[0015] (2) The first step reaction: Slowly add 20ml of maleic anhydride dropwise at a rate of 0.2ml / min to the phthalic anhydride polyol solution prepared in step (1), and then add the first catalyst with a mass fraction of 0.8% o-Trimethylbenzylamine 0.3ml, the temperature is raised to 50°C after the dropwise addition, and the pH value of the solution is measured every 20 minutes until it is stable;
[0016] (3) The second step reaction: Add 300g of epoxy resin to the mixed solution with constant pH value, 0.02ml of the second catalyst tetraethylammonium bromide with a mass fraction of 1% and 0.01 with a mass fraction of 1% for the first polymerization inhibitor Agent 3-tert-butylcatechol, after th...
Embodiment 2
[0024] (1) Preparation of phthalic anhydride polypolyol solution: Weigh 200g of phthalic anhydride polypolyol and add it into 300ml propyl acetate solution, stir at 80°C at a speed of 600-900r / min to fully dissolve it, and obtain phthalic anhydride polypolyol Alcoholic solution;
[0025] (2) The first step reaction: Slowly add 20ml of maleic anhydride dropwise at a rate of 0.5ml / min to the phthalic anhydride polyol solution prepared in step (1), and then add the first catalyst with a mass fraction of 0.8% o-Trimethylbenzylamine 0.6ml, the temperature was raised to 90°C after the dropwise addition, and the pH value of the solution was measured every 40 minutes until it was stable;
[0026] (3) The second step reaction: add 300g epoxy resin to the mixed solution with constant pH value, 0.06ml mass fraction of 1% second catalyst tetraethylammonium bromide and 0.03ml mass fraction of 1% first resistance The polymerization agent 3-tert-butylcatechol, after the addition is complete...
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