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Cationic fluorine-containing paper oil-proofing agent

A technology of oil-repellent and cationic, which is applied in the field of preparation of cationic fluorine-containing paper oil-repellent, to achieve the effects of reducing surface performance, excellent water resistance, and enhancing strength and stiffness

Inactive Publication Date: 2013-11-20
XIAMEN AISIKANG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Fluorine-containing paper oil-repellent has good waterproof and oil-proof performance, so it has been paid attention to by some large foreign companies and scientific research institutions and is competing to carry out related research work. At present, there are relatively more researches on fluorine-containing paper oil-repellent abroad. There are few researches in this respect; Chinese patent CN101067291 adopts ultrasonic radiation method to prepare a kind of cationic paper fluorocarbon oil repellant, and U.S. patent US5387640 adopts fluorine-containing monomer as main raw material to prepare a kind of Fluorine copolymer, U.S. Patent US5674961 prepares a fluorine chemical copolymer and is used to treat paper products that are oily, water-resistant and solvent-resistant. The U.S. patent uses the fluorine-containing copolymer prepared by US20050234205 and treats the paper; but In recent years, perfluorinated octanoic acid (PFOA) has been widely detected in the blood of wild animals and humans, as well as in rivers, lakes, seas and other environments, causing people to worry about the risk of PFOA; how to reduce the risk of fluorine-containing paper oil repellent The dosage, improving the water and oil repellency of oil repellent, and eliminating the risk of PFOA have become the current development direction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Example 1, take 91.0g monomer perfluorohexyl ethyl acrylate, 18.5g monomer methyl methacrylate, 22.5g monomer stearyl acrylate, 5.0g monomer glycidyl acrylate, 4.5g monomer N,N-diethylaminoethyl methacrylate, 8.5g monomer diacetone acrylamide, 0.9g initiator azobisisobutyronitrile, 0.3g chain transfer agent dodecylmercaptan, 100.0g acetone and Add 100.0g of methyl isobutyl ketone mixed solvent into a reaction vessel equipped with a stirrer, a thermometer and a condenser. After passing through nitrogen to remove oxygen, stir and heat up to 50-80°C. After 6-8 hours of reaction, cool down to room temperature , add 2.5g of deionized water, mix evenly, distill out acetone and methyl isobutyl ketone solvent to obtain a fluorine-containing paper oil repellent with a solid content of 27.5%, the specific gravity of the polymer is 1.01-1.10, and the molecular weight is 80,000-250,000.

Embodiment 2

[0052] Example 2, take 101.0g monomeric perfluorohexyl ethyl acrylate, 21.5g monomeric lauryl acrylate, 10.0g monomeric glycidyl acrylate, 13.5g monomeric N,N-dimethylamino Ethyl ester, 4.0g monomer ureidomethacrylate QM-1558, 2.2g initiator azobisisobutyronitrile, 0.3g chain transfer agent dodecyl mercaptan, 100.0g acetone and 100.0g methylisobutyl Add the base ketone mixed solvent into a reaction vessel equipped with a stirrer, a thermometer, and a condenser. After passing through nitrogen to deoxygenate, stir and heat up to 50-80°C. After reacting for 6-8 hours, cool down to room temperature and add 7.4g of glacial acetic acid and 450g of deionized water, after mixing evenly, distill off the acetone and methyl isobutyl ketone solvent to obtain a fluorine-containing paper oil repellent with a solid content of 22.5%, the specific gravity of the polymer is 1.01-1.10, and the molecular weight is 60,000-150,000.

Embodiment 3

[0053] Example three, take 112.5g monomer perfluorohexyl ethyl acrylate, 13.5g monomer methyl acrylate, 8.5g monomer stearyl methacrylate, 6.0g monomer glycidyl acrylate, 5.0g monomer N,N-diethylaminoethyl methacrylate, 4.5g monomer allyl ureidoethyl ether WAM II, 1.5g initiator azobisisobutyronitrile, 0.5g chain transfer agent dodecyl sulfide Alcohol, 100.0g of acetone and 100.0g of methyl isobutyl ketone mixed solvent are added to the reaction vessel equipped with a stirrer, a thermometer and a condenser. After passing through nitrogen to deoxygenate, stir and heat up to 50-80°C. Reaction 6-8 After one hour, be down to room temperature, add 4.1g glacial acetic acid and 450g deionized water, after mixing evenly, steam acetone and methyl isobutyl ketone solvent, obtain the fluorine-containing paper oil repellant of solid content 26.5%, polymer specific gravity is 1.01-1.10, molecular weight 22000-120000.

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Abstract

The invention relates to a cationic fluorine-containing paper oil-proofing agent which is an acrylate high molecular polymer solution containing perfluorohexylethyl on a side chain, wherein the high molecular polymer solution is prepared from 55.0-85.0% of fluorine-containing monomer, 5.0-35.0% of methyl / acrylate monomer, 3.0-10.0% of cationic monomer, 3.0-10.0% of functional monomer and 2.0-10.0% of adhesion reinforcement monomer through copolymerization reaction. The oil-proofing agent provided by the invention has the characteristics of high adhesion, low consumption, favorable oil / water resistance and the like; and by adding the adhesion reinforcement monomer, the fluorine-containing activating agent can be adsorbed on fiber of paper, so that the surface property of the paper fiber is reduced, thereby improving the oil-proofing property of the paper and simultaneously increasing the strength and stiffness of the paper.

Description

technical field [0001] The present invention relates to an industrially used paper waterproof and oil-repellent agent and its preparation technology, in particular to the preparation technology of a cationic fluorine-containing paper oil-repellent agent, the oil-repellent agent is mainly used for pulp molded tableware, pastry paper mat, Food packaging bags, folding paper lunch boxes, cream pastry packaging boxes and paper bags are being treated to resist the penetration of animal and vegetable oils. Background technique [0002] Paper products have been widely used in catering, food, candy and other packaging and daily life, and the paper products used in this field are required to have a certain waterproof and oil-proof function. The surface of the early paper products was treated with wax to have a certain degree of water resistance. , but the anti-oil effect is poor and pollutes food, so it has been seldom used; another way to endow paper with oil-proof properties is to c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/24C08F220/14C08F220/18C08F220/58C08F220/28C08F220/32C08F220/34C08F216/14C08F2/38D21H21/14
Inventor 刘彦军程思聪刘堡林
Owner XIAMEN AISIKANG NEW MATERIAL
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