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Novel environment-friendly paper surface glazing finishing emulsion and preparation method thereof

An environmentally friendly, paper technology, applied in paper coating, coating, papermaking, etc., can solve problems such as high cost and poor dilution stability

Inactive Publication Date: 2013-01-30
QINGDAO TSINGUNION HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether it is two-component or single-component, the used polymer emulsions such as acrylates use emulsifiers and film-forming aids in emulsion polymerization, and the emulsion stability (especially freezing stability, dilution stability) is poor, High cost, prone to environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) 180kg of tapioca raw starch, water content is 14wt%, the amount of absolute dry tapioca raw starch is about 30kg, deionized water 500kg, joins in the reactor that mechanical stirring is housed, stirs evenly, adds biological amylase 1.0 kg, heated up to 100°C, and reacted for 30 minutes;

[0025] (2) Adjust the temperature of the modified natural polymer material to be 65°C, add 0.1kg of ammonium persulfate, 0.1kg of sodium bisulfite, add 15kg of styrene, 5kg of methyl methacrylate, and 5kg of ethyl acrylate mixed monomer, React for 30 minutes to obtain a polymer dispersion in micellar state;

[0026] (3) Add the mixed monomer and initiator dropwise from the head tank to the reaction kettle under stirring, keep the temperature at 65°C, and drop it in 3 hours, wherein the mixed monomer is 115kg of styrene, 25kg of methyl methacrylate, ethyl acrylate 93 kg of ester, 8 kg of hydroxyethyl methacrylate, wherein the initiator is the combination of ammonium persulfate aque...

Embodiment 2

[0029] (1) 92kg of cellulose and 500kg of deionized water were added to a reaction kettle equipped with mechanical stirring, stirred evenly, 3.68kg of sodium persulfate was added, the temperature was raised to 70°C, and the reaction was carried out for 15 minutes;

[0030] (2) add styrene 5kg, isooctyl acrylate 7kg mixed monomer to reactor, react 30 minutes, obtain the polymer micelle dispersion liquid of transparent bluish;

[0031] (3) Add the mixed monomer and initiator dropwise from the head tank to the reaction kettle under stirring, keep the temperature at 70°C, and drop it in 3 hours, wherein the mixed monomer is 56.3kg of styrene, 92kg of methyl acrylate, isooctyl acrylate 66.5kg of ester, 49kg of vinyl acetate, 7.35kg of acrylic acid, wherein the initiator is an aqueous solution of sodium persulfate, and the preparation method is: 1.5kg of sodium persulfate is added with 120kg of deionized water to stir and dissolve completely;

[0032] (4) logical cold water is coole...

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PUM

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Abstract

The invention discloses a novel environment-friendly paper surface glazing finishing emulsion and a preparation method thereof. The emulsion comprises, by weight, 5 to 40% of a natural high-molecular material, 40 to 60% of a hard monomer, 30 to 50% of a soft monomer, 0.01 to 5% of a functional monomer, 0.02 to 5% of a modifier and 0.2 to 0.5% of an initiator, with the balance being deionized water. The novel environment-friendly paper surface glazing finishing emulsion provided by the invention has the advantages of capacity of film forming at room temperature, nontoxicity, no odor, striking transparency, strong adhesion, good leveling performance, no discharge of organic volatile matters (VOC) and the like, overcomes the defects of a high glass transition temperature, low dual-component resin complex formulation, utilization of an emulsifier, a film forming auxiliary agent and the like of a conventional waterborne glazing agent, regenerable resources are fully utilized, a product is sanitary and biodegradable after cyclic usage, environmental pollution is reduced, and economy and environmental protection are realized.

Description

technical field [0001] The invention relates to a novel environmental protection paper surface glazing and finishing emulsion, in particular to a preparation method thereof. Background technique [0002] With the development of the market economy and the continuous improvement of human living standards, people pay more and more attention to the printing and decoration of various packaging and publications. The traditional BOPP and PET plastic-film composite paper has the advantages of high gloss, beautiful and durable, but it is not conducive to the recycling of waste paper, and it is easy to cause environmental pollution. With the development of society, human beings' awareness of protecting the living environment has also been continuously improved, and the coating of varnish on the surface of printed products has gradually replaced plastic film composite paper. Varnish can endow prints with good surface gloss, improve the wear resistance, water resistance, stain resistan...

Claims

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Application Information

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IPC IPC(8): D21H19/20C08F251/00C08F251/02C08F289/00C08F212/08C08F220/14C08F220/44C08F220/18C08F218/08
Inventor 于善普陈兵吴艳华孟祥伏张春刚
Owner QINGDAO TSINGUNION HIGH TECH CO LTD
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