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Low-temperature-resistant acrylic acid coating adhesive and preparation method and application thereof

A technology of acrylic acid and low temperature resistance, applied to a low temperature resistant acrylic coating adhesive for building sealing and its preparation field, can solve the problems of low bonding performance, low temperature resistance, poor acid and alkali resistance, etc., and achieves improved peel strength, The effect of reducing surface energy and good low temperature resistance

Active Publication Date: 2020-10-09
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to solve the technical problems of poor low temperature resistance, poor acid and alkali resistance and low bonding performance of the existing acrylic coating adhesive technology, the present invention provides a low temperature resistant acrylic coating adhesive and its preparation method and application

Method used

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  • Low-temperature-resistant acrylic acid coating adhesive and preparation method and application thereof
  • Low-temperature-resistant acrylic acid coating adhesive and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Pre-emulsion preparation: with 80g butyl acrylate, 10g ethyl acrylate, 5g methyl acrylate, 5g methyl methacrylate, 1.5g 2-perfluoropropoxy perfluoropropyl trifluorovinyl ether, 2g Perfluoromethyl vinyl ether, 1.5 g perfluoroethyl vinyl ether, 2 g 2-acrylamide-2-methylpropanesulfonic acid and 50 g deionized were added to a 500 mL round bottom flask and mixed vigorously at 12000 rpm to Form a pre-emulsion and set aside;

[0044] (2) Seed emulsion preparation: join the pre-emulsion of 10wt% to a 500mL and have reflux condenser, constant pressure dripping device, in the four-neck round-bottomed flask of nitrogen feed tube and mechanical stirrer, add 0.15g carbonic acid in flask Sodium hydrogen, set the reaction temperature to 70-85°C, set the stirring speed to 250rpm, and dropwise add potassium persulfate aqueous solution prepared by 0.15g potassium persulfate and 50g deionized water, and reflux reaction under nitrogen protection until the system appears Blu-ray;

[0...

Embodiment 2

[0047] (1) Pre-emulsion preparation: 70g n-octyl acrylate, 10g isooctyl acrylate, 10g isooctyl methacrylate, 10g ethyl methacrylate, 3g 2-perfluoropropyl vinyl ether, 3g 1,1 ,2,4,4,5,7,7,8,10,10,11,11,12,12,12-hexadecafluoro-5,8-bis(trifluoromethyl)-3,6,9 - Trioxadodecyl-1-ene, 4 g 3-(1-(difluoro((trifluorovinyl)oxy)methyl)-1,2,2,2-tetrafluoroethoxy) - 2,2,3,3-Tetrafluoropropanol, 2g sodium alkylvinylsulfonate and 50g deionized were added to a 500mL round bottom flask and mixed vigorously at 12000rpm to form a pre-emulsion, ready for use;

[0048] (2) Seed emulsion preparation: join the pre-emulsion of 10wt% to a 500mL and have reflux condenser, constant pressure dripping device, in the four-neck round-bottom flask of nitrogen feed pipe and mechanical stirrer, add 1.5g carbonic acid in flask Sodium hydrogen, set the reaction temperature at 70-85°C, set the stirring speed at 250rpm, add dropwise an aqueous sodium persulfate solution prepared by 0.15g sodium persulfate and 50g ...

Embodiment 3

[0051] (1) Pre-emulsion preparation: first mix 80g lauryl acrylate, 15g 1,6-hexanediol diacrylate, 2g butyl methacrylate, 3g vinyl acetate, 1.5g 1,1,2,2,3, 3,4,4,5,5-Decafluoro-1-((trifluorovinyl)oxy)pentane, 2g 1-chloro-1,1,2,2,3,3-hexafluoro-3-( (trifluorovinyl)oxy)propane, 1.5g 2-chloro-1,1,1,2,3,3-hexafluoro-3-((trifluorovinyl)oxy)propane, 2g 2-propene Add amide-2-methylpropanesulfonic acid and 50g deionized into a 500mL round bottom flask and mix vigorously at 12000rpm to form a pre-emulsion, ready for use;

[0052] (2) Seed emulsion preparation: join the pre-emulsion of 10wt% to a 500mL and have reflux condenser, constant pressure dripping device, in the four-neck round-bottomed flask of nitrogen feed tube and mechanical stirrer, add 0.15g carbonic acid in flask Sodium hydrogen, set the reaction temperature to 70-85°C, set the stirring speed to 250rpm, and add dropwise an ammonium persulfate aqueous solution prepared by 0.15g ammonium persulfate and 50g deionized water,...

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Abstract

The invention discloses a low-temperature-resistant acrylic acid coating adhesive and a preparation method and application thereof. The low-temperature-resistant acrylic acid coating adhesive is prepared by adopting a seed semi-continuous emulsion polymerization method. The adhesive is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate soft segment monomer; 1-6 parts of an acrylate hard segment monomer; 1-6 parts of a fluorine-containing monomer; 1-5 parts of an emulsifier; 0.1 to 1 part of an initiator; 0.05 to 3 parts of a silicon monomer; 0.05 to 1 part ofsodium bicarbonate; and 30 to 90 parts of deionized water, wherein the initiator is persulfate. The acrylic acid coating adhesive has good low-temperature resistance, water resistance and acid and alkali resistance, and also has relatively high peel strength and initial viscosity on a bonding surface with low surface energy.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a low-temperature-resistant acrylic coating glue used for building sealing and its preparation method and application. Background technique [0002] Acrylic resins are usually acrylate or methacrylate polymers, and sometimes other monomers such as acrylonitrile and styrene are added for modification. The most commonly used acrylates are methyl acrylate, ethyl acrylate, n-butyl acrylate and 2-ethylhexyl acrylate, and the common methacrylates are methyl methacrylate, ethyl methacrylate, Butyl methacrylate and esters containing higher alcohols. Acrylic resin emulsion is widely used as coating adhesive because of its good film-forming properties, high strength and strong adhesion. [0003] The monomers used in the polymerization of acrylates can be divided into three categories: [0004] Viscous monomer, which is an alkyl acrylate with a carbon number of 4 to 12, has a viscous e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J171/02C09J7/30C08F220/18C08F220/14C08F216/14C08F220/58C08F230/08C08F228/02C08F283/06
CPCC08F283/065C09J143/04C09J171/02C09J2471/00C09J7/30C08F220/1804C08F220/1808C08F220/1812C08F220/1802C08F220/14C08F216/1408C08F220/585C08F230/08C08F228/02C08L43/04
Inventor 刘俊凯陈书云踪浩匡宁
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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