Water-soluble self-crosslinking acrylic resin composition and preparation method thereof
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A technology of self-crosslinking acrylic acid and resin composition, which is applied in the field of ink, and can solve the problems of poor solvent release, slow crosslinking and curing speed, and easy back-sticking when heated.
Active Publication Date: 2013-11-13
江苏泰格油墨有限公司
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Problems solved by technology
Water-soluble solid resin adopts bulk polymerization. After the polymerization is completed, it needs to consume a lot of energy to remove the solvent used in the polymerization reaction. It has a high glass transition temperature, low molecular weight, and poor solvent release. It needs to be used in water and alcohol solvents. Neutralize with alkaline substances and grind with pigments; the glass transition temperature of water-dispersed resins and emulsions is lower than that of water-soluble solid resins, with high molecular weight, good solvent release, and good film-forming properties. Easy to demulsify and become invalid when frozen
The three are used in combination during production. The water-based ink produced by it has the...
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Embodiment 1
[0081] Embodiment 1, a kind of water-soluble self-crosslinking acrylic resin composition, this composition is made up of the raw material of following mass ratio:
[0082] Acrylic acid and its derivatives, the total amount of non-acrylic carboxyl monomers 40-50;
[0083] Solvent 20~40;
[0084] water 8-15;
[0085] Initiator 0.5~1.5;
[0086] Molecular weight regulator 0.03~0.4;
[0087] Neutralizer 3~8;
[0088] Cross-linking agent 0.1-0.5;
[0089] In acrylic acid and its derivatives, non-acrylic carboxyl monomers:
[0095] In the solvent: containing tert-butanol 2~4;
[0096] The solvents are alcohols or alcohol ethers; the initiators are azos; the molecular weight regulators are mercaptans; the neutralizers are organic amines or ammonia; The joint ...
Embodiment 2
[0099] Example 2, in the water-soluble self-crosslinking acrylic resin composition described in Example 1: the monomer containing a β-dicarbonyl structure is diacetone acrylamide or acetoacetoxy ethyl methacrylate; The aforementioned monomer containing a saturated ring structure is cyclohexyl methacrylate or isobornyl methacrylate.
Embodiment 3
[0100] Embodiment 3, in the water-soluble self-crosslinking acrylic resin composition described in embodiment 1 or 2: described solvent is ethanol, n-propanol, Virahol, tert-butanol, propylene glycol methyl ether, propylene glycol ether A mixture of two or more, and the mixture contains tert-butanol.
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Abstract
The invention provides a water-soluble self-crosslinking acrylic resin composition. The water-soluble self-crosslinking acrylic resin composition is prepared from the following raw materials in percentage by mass: 40-50% of acrylic acid and derivative thereof as well as non-acrylic carboxyl monomers, 20-40% of solvent, 8-15% of water, 0.5-1.5% of initiating agent, 0.03-0.4% of molecular weight regulator, 3-8% of neutralizing agent and 0.1-0.5% of crosslinking agent, wherein the acrylic acid and derivative thereof as well as non-acrylic carboxyl monomers contain 0.2-1% of monomers containing carbonyl structures, 2-5% of monomers containing ring structures, 0-2.5% of acrylic acid carboxyl monomers, 2.5-5% of non-acrylic carboxyl monomers and 2.5-5% of hydroxyl monomers. The invention also discloses a preparation method of the water-soluble self-crosslinking acrylic resin composition. The water-soluble self-crosslinking acrylic resin composition is low in monomer residual quantity, wide in molecular weight distribution and good in resin resolubility, and basically reaches an industrial 0.8N/15mm standard for the combined strength of OPP (oriented polypropylene) and PET (polyethylene terephthalate), so that the water-soluble self-crosslinking acrylic resin composition not only is suitable for PET composite packaging with compound printing ink printed in the OPP and low requirement for the combined strength, but also is suitable for paper printing.
Description
technical field [0001] The invention relates to the ink industry in the field of chemical industry, in particular to a water-soluble self-crosslinking acrylic resin composition as a basic raw material used in water-based ink, and to a preparation method of the composition. Background technique [0002] In recent years, with the development of society and the reduction of oil resources, people have paid more and more attention to environmental protection, and the country has become more and more strict on energy conservation and emission reduction. In traditional gravure and flexo printing and other solvent-based inks, the organic solvent content is as high as 40% to 60%, and its drying form is volatile drying. The volatilization of a large amount of organic solvents not only increases the printing cost, but also causes great waste. What is more serious is that the volatilization of a large amount of organic solvents such as toluene, xylene, methyl ethyl ketone, and ethyl ace...
Claims
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Application Information
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