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Preparation method of cationic core-shell fluorinated acrylate-alkyd resin surface sizing agent

A technology of surface sizing agent and alkyd resin, which is applied in the direction of water-repellent addition, reinforcing agent addition, coating, etc., which can solve the unsatisfactory oil repellency, heat resistance, weather resistance, and water and oil repellency , poor water resistance and weather resistance of the coating film, etc., to increase the physical strength, improve the waterproof and oil-proof performance, and improve the effect of water resistance

Active Publication Date: 2018-10-09
ZHEJIANG HENGDA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional polyacrylate has been widely used due to its good flexibility, adhesion and film-forming properties, but its heat resistance, weather resistance, water and oil repellency are not satisfactory
Alkyd resin has the characteristics of mature synthesis technology, cheap and easy-to-obtain raw materials, good leveling, good adhesion, and excellent adhesion to fibers, but its coating film has poor water resistance and weather resistance.
Acrylic resin modified alkyd resin can improve the water resistance and weather resistance of alkyd resin, so that the sized paper has good water resistance, but it does not have oil resistance

Method used

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  • Preparation method of cationic core-shell fluorinated acrylate-alkyd resin surface sizing agent
  • Preparation method of cationic core-shell fluorinated acrylate-alkyd resin surface sizing agent

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preparation example Construction

[0022] A preparation method of a cationic core-shell fluorine-containing acrylate-alkyd resin surface sizing agent of the present invention comprises the steps of: mixing 10-45 parts of alkyd resin, 0.5-2.0 parts of initiator azobisisobutyronitrile and auxiliary Add 5-20 parts of solvent to the reaction container together, raise the temperature to 70-130°C, stir until the alkyd resin is completely dissolved and record it as component A; mix monomers (soft monomer 0-8 parts, hard monomer 12-20 parts, 1-3 parts of stearyl acrylate, 5-10 parts of vinyl fluorine-containing monomer) and 0.5-1.0 parts of the remaining initiator are mixed and ultrasonicated, so that the initiator is completely dissolved in the monomer, and the mixed system Record it as component B, add component B dropwise to component A within 2-4 hours, continue to keep warm for 2-3 hours to obtain component C; then mix the monomer (dimethylaminoethyl methacrylate 1 -5 parts, 0-8 parts of soft monomer, 12-20 parts ...

Embodiment 1

[0025] A preparation method of a cationic core-shell fluorine-containing acrylate-alkyd resin surface sizing agent, comprising the following steps:

[0026] Add 25 parts of alkyd resin, 0.7 parts of initiator azobisisobutyronitrile and 12 parts of cosolvent into the reaction vessel together, raise the temperature to 90°C, stir until the alkyd resin is completely dissolved and record it as component A; mix the Monomer (2 parts of soft monomer, 15 parts of hard monomer, 1 part of stearyl acrylate, 6 parts of hexafluorobutyl acrylate) and 0.5 parts of the remaining initiator are mixed ultrasonically, so that the initiator is completely dissolved in the monomer, The mixed system is recorded as component B, and component B is added dropwise to component A within 2 hours, and the reaction is continued for 2 hours to obtain component C; then the mixed monomer (dimethylaminoethyl methacrylate 3 1 part, 1 part of soft monomer, 15 parts of hard monomer, 2 parts of stearyl acrylate, 8 pa...

Embodiment 2

[0028] A preparation method of a cationic core-shell fluorine-containing acrylate-alkyd resin surface sizing agent, comprising the following steps:

[0029] Add 35 parts of alkyd resin, 1.5 parts of initiator azobisisobutyronitrile and 17 parts of cosolvent into the reaction vessel together, raise the temperature to 100°C, stir until the alkyd resin is completely dissolved and record it as component A; mix Monomer (7 parts of soft monomer, 16 parts of hard monomer, 2.5 parts of stearyl acrylate, 5-109 parts of vinyl fluorine-containing monomer) and 1.3 parts of remaining initiator were mixed ultrasonically, so that the initiator was completely dissolved in the single In the body, record the mixed system as component B, add component B dropwise to component A within 3 hours, and continue the heat preservation reaction for 3 hours to obtain component C; then mix the monomer (dimethylaminomethacrylate 5 parts of ethyl ester, 4 parts of soft monomer, 18 parts of hard monomer, 2.4 ...

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Abstract

The invention discloses a preparation method of a cationic core-shell fluorinated acrylate-alkyd resin surface sizing agent, and relates to the technical field of sizing for paper making. The method adopts a solution phase inversion emulsion polymerization method, ensures that acrylic monomer is grafted to alkyd resin through the adding of an initiator and double bond bonding, forms the sizing agent for a core-shell structure by taking the theoleophylic alkyd resin as a core and the hydrophilic acrylic monomer as a shell through crosslinking, and ensures that a system combines the water and oil proofing property of fluorinated acrylic resin and the high adhesive property of alkyd resin, thereby being capable of effectively improving the water and oil proofing property and physical strengthproperty of paper.

Description

technical field [0001] The invention relates to the technical field of preparation of a cationic surface sizing agent, in particular to a preparation method of a cationic core-shell fluorine-containing acrylate-alkyd resin surface sizing agent. Background technique [0002] The surface sizing agent can significantly improve the surface properties of paper such as surface strength, water resistance, and paper printing adaptability, and can greatly improve the water resistance of paper and cardboard, physical indicators such as ring compressive strength, tensile strength, and folding endurance . Traditional polyacrylate has been widely used due to its good flexibility, adhesion and film-forming properties, but its heat resistance, weather resistance, water and oil repellency are not satisfactory. Alkyd resin has the characteristics of mature synthesis technology, cheap and easy-to-obtain raw materials, good leveling, good adhesion, and excellent adhesion to fibers, but its co...

Claims

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Application Information

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IPC IPC(8): C08F283/02C08F220/14C08F212/08C08F220/18C08F220/24C08F2/32D21H19/10D21H21/14D21H21/16D21H21/18
CPCC08F2/32C08F283/02D21H19/10D21H21/14D21H21/16D21H21/18C08F220/14C08F212/08
Inventor 伊财富杨菊红江利程亚洲丁济正张海波郑春芽
Owner ZHEJIANG HENGDA NEW MATERIAL CO LTD
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