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Method for producing expediting setting type aquosity ultraviolet light solidifying composition

A fast-curing, UV-light technology, which is applied in the field of preparation of fast-curing water-based UV-curable compositions, can solve the problems of difficult film formation of paper coatings, strong water absorption of paper, etc., and achieve excellent performance and reduce pollution.

Active Publication Date: 2008-05-07
广东天银实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the paper has strong water absorption and is flammable, which brings great difficulties to the film formation of paper coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Under the protection of nitrogen, 19.784gMA (maleic anhydride), 44.204gAD (adipic acid), 33.372gNPG (neopentyl glycol), 26.810gBEPD (2-butyl-2-ethyl-1, 3-Propanediol), 17.560g TMPME (trimethylolpropane monoallyl ether), 0.200g catalyst (organotin salt), 0.100g part polymerization inhibitor (p-methylol anisole), 0.200g The antioxidant was put into a four-necked reaction flask with stirring, a thermometer, a nitrogen gas conduit, and a packed tower, and the temperature was raised to 150° C., stirred, and then slowly raised to 190° C. (the heating time was 3 hours). After holding at 190 °C for 0.5 hours, start to measure the acid value. When the acid value drops to 25-30 mgKOH / g resin, remove the packed tower, replace the water separator, and add 5 g of xylene solvent to reflux until the acid value is ≤ 5mgKOH / g resin, remove xylene under vacuum filtration, after the reaction is completed, vacuum dry for 0.5 to 2 hours, the vacuum degree is at least 0.050kPa, and the t...

Embodiment 2

[0036] (1) Under the protection of nitrogen, the mass parts of 134.00g of trimethylolpropane, 98.00g of maleic anhydride, 0.300g of catalyst (anhydrous sodium acetate), 0.100g of polymerization inhibitor ( Hydroquinone) was put into a four-necked reaction flask with stirring, and the temperature was controlled at 90°C. After 1 hour of reaction, the acid value was measured. When the acid value was 240-250 mgKOH / g resin, the temperature was lowered to 60°C. After the completion of the reaction, vacuum drying under reduced pressure for 0.5-2 hours, the vacuum degree is at least 0.050kPa, and the temperature is 60°C to 80°C to obtain a hydroxyl-terminated photoactive water-based functional monomer.

[0037] (2) Under the protection of nitrogen, 18.116gMA (maleic anhydride), 26.984gAD (adipic acid), 37.523gNPG (neopentyl glycol), 8.118gBDO (butanediol)), 0.100g catalyst (organic tin salt), 0.100g of polymerization inhibitor (hydroquinone), 0.150g of antioxidant 246 were put into a ...

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Abstract

The invention provides a preparation method of a high-gloss and high-speed curing water-based ultraviolet light curing composition applied on a printing surface. The composition includes (1) polyhydric alcohols or polybasic acids containing double bonds in different proportions are polycondensed to form hydroxyl-terminated unsaturated polyesters as soft segments of polyurethane, and self-made hydroxyl-terminated water-based monomers containing double bonds and iso The reaction of phorone diisocyanate to prepare water-based photocurable polyurethane prepolymer; (2) react epoxy resin and acrylic acid to open the epoxy group, and then use acid anhydride to react with the hydroxyl group in the epoxy prepolymer to prepare water-based polyurethane prepolymer. Photocurable epoxy resin prepolymer; (3) Cold blend the two prepolymers, neutralize them with a weak base, add water to disperse them under high-speed stirring, and remove the solvent, thereby preparing a self-emulsifying water-based photopolymer. Cured composite resin. The invention can adjust various properties of the resin (paint) by adjusting the molar ratio of raw materials in the resin, and the prepared dispersion has small particle size (20nm-120nm), excellent performance and easy industrialization.

Description

Technical field: [0001] The invention relates to the synthesis of self-emulsifying water-based polyurethane photocurable resin and self-emulsifying water-based epoxy resin photocurable resin, in particular by introducing self-made unsaturated polyester and self-made photoactive water-based monomer as self-emulsifying type The raw material of waterborne polyurethane photocurable resin is to increase the double bond density in the resin, so as to achieve the purpose of improving the curing rate and increasing the curing crosslinking degree. Background technique: [0002] At present, polyethylene film is generally used for lamination on paper at home and abroad, and its production process is complicated, and the film cannot be degraded at all, which also brings certain pressure to the environment. Replacing the film on the paper with a coating film can greatly reduce the pollution to the environment. With the improvement of environmental protection requirements, water-based co...

Claims

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Application Information

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IPC IPC(8): C08G18/42C08G59/17C08K5/17
Inventor 闫福安蔡明生吴让军吕任扬郑宗武陈少双
Owner 广东天银实业有限公司
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