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Preparation method of fluorine-containing waterproof paper packaging material

A technology of paper packaging materials and waterproofing agents, applied in packaging, packaging paper, paper coatings, etc., can solve the problems of weak hydrophobicity of sizing agents, difficulty in meeting waterproof requirements, unstable waterproof performance, etc., and achieve significant water solubility performance, excellent chemical resistance and effect of low surface energy, excellent water repellency and weather resistance

Active Publication Date: 2018-05-04
ZHEJIANG GREAT SHENGDA PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rosin glue is often used for sizing, and the waterproof performance of paper is limited. The hydrophobicity of sizing agent is not strong, and uneven coating thickness will cause unstable waterproof performance; coating with varnish can only partially improve waterproof performance. It is difficult to meet the increasing waterproof requirements

Method used

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  • Preparation method of fluorine-containing waterproof paper packaging material
  • Preparation method of fluorine-containing waterproof paper packaging material

Examples

Experimental program
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Effect test

example 1

[0024] (1) Preparation of cationic fluorine-modified acrylate resin

[0025] In a reaction kettle equipped with a mechanical stirring device, a thermometer, a constant pressure dropping funnel and a reflux condenser, add 10 parts by weight of solvent butyl acetate and 0.2 parts by weight of initiator azobisisobutyronitrile, at 70 ° C Acrylate mixed monomer (10 parts by weight of methyl methacrylate, 15 parts by weight of butyl acrylate), 15 parts by weight of epoxy functional monomer glycidyl ether group-terminated allyl alcohol atactic polyether, 10 parts by weight The fluorine-containing acrylate monomer perfluoroalkyl ethyl methacrylate and 0.3 parts by weight of the initiator azobisisobutyronitrile solution are added dropwise to the reactor through a constant pressure dropping funnel, and the drops are completed within 2 hours. Continue the heat preservation and reflux reaction for 4 hours. Then, 5 parts by weight of polyamine triethanolamine was added through a constant-...

example 2

[0031] (1) Preparation of cationic fluorine-modified acrylate resin

[0032]In the reaction kettle equipped with mechanical stirring device, thermometer, constant pressure dropping funnel and reflux condenser, add the solvent propylene glycol methyl ether acetate of 30 parts by weight and the initiator benzoyl peroxide of 1 part by weight, at 100 ℃ Acrylate mixed monomer (20 parts by weight of ethyl methacrylate, 30 parts by weight of isopropyl acrylate), 30 parts by weight of epoxy functional monomer allyl glycidyl ether, 20 parts by weight of fluorine-containing acrylate The monomer hexafluorobutyl acrylate and 1 part by weight of the initiator benzoyl peroxide solution were added dropwise into the reaction kettle through a constant pressure dropping funnel, and the dripping was completed within 4 hours, and the reaction was continued for 2 hours under heat preservation and reflux. Then add 10 parts by weight of polyamine diethanolamine to carry out the ring-opening reaction...

example 3

[0038] (1) Preparation of cationic fluorine-modified acrylate resin

[0039] In a reaction kettle equipped with a mechanical stirring device, a thermometer, a constant pressure dropping funnel and a reflux condenser, add 20 parts by weight of solvent methyl ethyl ketone and 0.5 parts by weight of initiator azobisisobutyronitrile, and acrylic acid at 95 ° C Ester mixed monomer (10 parts by weight of ethyl methacrylate, 20 parts by weight of isopropyl acrylate, 10 parts by weight of 2-hydroxyethyl methacrylate), 20 parts by weight of epoxy functional monomer glycidyl methacrylate ester, 20 parts by weight of fluorine-containing acrylate monomer tridecafluorooctyl methacrylate and 0.5 parts by weight of initiator azobisisobutyronitrile solution were added dropwise to the reaction kettle through a constant pressure dropping funnel, within 3 hours After dripping, continue to insulate and reflux the reaction for 3 hours. Then add 7 parts by weight of polyamine propylenediamine to c...

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Abstract

The invention discloses a preparation method of a fluorine-containing waterproof paper packaging material, which comprises: using fluorine-containing acrylate monomers, acrylate mixed monomers and epoxy functional monomers as raw materials to prepare fluorine-modified acrylate resins; adding The fluorine-modified acrylate resin is modified by hydrophobic silicon dioxide particles to prepare a waterproofing agent; the waterproofing agent is coated on the surface of paper packaging materials. The fluorine-containing waterproof paper packaging material prepared by the method of the invention has the characteristics of super-hydrophobic, water cannot adhere to the surface, and has the excellent waterproof and anti-dirty effect.

Description

technical field [0001] The invention relates to a preparation method of a paper packaging material, in particular to a preparation method of a fluorine-containing waterproof paper packaging material. Background technique [0002] The paper packaging industry is one of the fastest-growing fields in the packaging industry, has a large room for development, and has been identified as one of the most promising green packaging materials. The main chemical components of paper are cellulose and hemicellulose, which belong to macromolecular polysaccharides. Its molecular structure is highly hydrophilic, and it is easier to absorb water from the surrounding environment, resulting in a decrease in the strength of the cardboard. Many studies have shown that the strength of paper packaging materials will drop to 10% to 20% of their original strength after absorbing water and getting wet. Therefore, the waterproof performance of paper packaging materials is very important during transpo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16D21H19/12D21H23/56D21H23/58D21H27/10C08F283/06C08F220/24C08F220/18C08F220/14
CPCC08F283/06D21H19/12D21H21/16D21H23/56D21H23/58D21H27/10C08F220/24
Inventor 张治国孙俊军朱民强索艳格黄煜琪钟沙洁王召霞
Owner ZHEJIANG GREAT SHENGDA PACKING CO LTD
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