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CN-122011873-A - Interfacial agent primer suitable for glass products and preparation method thereof

CN122011873ACN 122011873 ACN122011873 ACN 122011873ACN-122011873-A

Abstract

The invention discloses an interfacial agent primer suitable for glass products and a preparation method thereof, wherein the interfacial agent primer comprises a component A and a component B, the component A comprises fluorine-carbon ring oxygen hybridized resin, polyurethane acrylic acid hybridized resin, nano PTFE, nano silicon dioxide, methylated melamine resin, fluorine-containing dispersing agent, polycarboxylate dispersing agent, wetting agent, leveling agent, defoaming agent, silane coupling agent, heat stabilizer, thickener, pH regulator, film forming auxiliary agent and deionized water, the mass ratio of the component A to the component B is 100 (7.5-8.5). The interfacial agent primer provided by the invention has excellent adhesive force, wear resistance, yellowing resistance and high-temperature stability, and is suitable for glass products.

Inventors

  • LIU XIANYUN
  • YANG LEI
  • JIANG FEI

Assignees

  • 安徽科润美新材料科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260305

Claims (10)

  1. 1. The interfacial agent primer for the glass product is characterized by comprising an A component and a B component, wherein the A component has the following composition and proportion: 38-42 parts by mass of fluorocarbon ring oxygen hybrid resin; 20-24 parts by mass of polyurethane acrylic hybrid resin; 2.8-3.2 parts by mass of nano PTFE; 3.8-4.2 parts by mass of nano silicon dioxide; 2.5-3 parts by mass of methylated melamine resin; 1 to 1.4 parts by mass of fluorine-containing dispersant; 1.6-2 parts by mass of polycarboxylate dispersant; 0.8-1.2 parts by mass of wetting agent; 0.2 to 0.4 mass portion of leveling agent; 0.2-0.4 part by mass of defoaming agent; 1.8-2.2 parts by mass of a silane coupling agent; 0.4-0.6 part by mass of heat stabilizer; 0.4-0.6 parts by mass of thickener; 0.1-0.3 part by mass of pH regulator; 3.8-4.2 parts by mass of film forming auxiliary agent; 18-22 parts of deionized water; The component B is a closed isocyanate curing agent; the mass ratio of the component A to the component B is 100 (7.5-8.5); The fluorocarbon epoxy hybrid resin is prepared by polymerization reaction of hexafluorobisphenol A diglycidyl ether, epoxy resin and acrylic acid monomer, wherein the acrylic acid monomer consists of methyl methacrylate, butyl acrylate, hydroxyethyl methacrylate, methacrylic acid and polyethylene glycol methacrylate; The polyurethane acrylic hybrid resin is obtained by polymerization reaction of polyurethane prepolymer and acrylic monomer, wherein the polyurethane prepolymer is prepared by reaction of hexamethylene diisocyanate, isophorone diisocyanate, polycarbonate diol, polytetrahydrofuran diol, glycerol monostearate, hydroxyethyl methacrylate, p-hydroxyanisole and 1, 2-octanediol, and the acrylic monomer is composed of styrene, butyl methacrylate, lauryl methacrylate, glycidyl methacrylate, isooctyl acrylate, methacrylic acid and hydroxypropyl methacrylate.
  2. 2. The interfacial agent primer for glass articles according to claim 1, wherein the preparation of said fluorocarbon epoxy hybrid resin comprises the steps of: 1) Under the protection of nitrogen, adding 15-20 parts by mass of hexafluorobisphenol A diglycidyl ether, 25-30 parts by mass of epoxy resin and 14-16 parts by mass of ethylene glycol monobutyl ether into a reactor, heating to 85-90 ℃, preserving heat, stirring and reacting for 30-40 minutes, and then cooling to 80-85 ℃ for later use; 2) 8-12 parts by mass of methyl methacrylate, 12-18 parts by mass of butyl acrylate, 6-8 parts by mass of hydroxyethyl methacrylate, 3-5 parts by mass of methacrylic acid, 2-3 parts by mass of polyethylene glycol methacrylate, 0.8-1.2 parts by mass of initiator and 5-10 parts by mass of ethylene glycol monobutyl ether are stirred and mixed uniformly to obtain an acrylic acid monomer-initiator mixed solution for standby; 3) Slowly dripping the acrylic acid monomer-initiator mixed solution into the mixed solution obtained in the step 1), controlling the dripping time to be 2.5-3 hours, after dripping, keeping the temperature, stirring and reacting for 2-3 hours, then cooling to 60-65 ℃, adding a neutralizing agent to neutralize to pH=7.5-8.5, then slowly adding deionized water, adjusting the solid content of the system to 42-45%, continuously stirring for 30 minutes, then cooling to below 40 ℃, filtering, and discharging to obtain the fluorocarbon ring oxygen hybrid resin.
  3. 3. The interfacial agent primer for glass articles according to claim 2, wherein in the preparation of the fluorocarbon epoxy hybrid resin, the epoxy resin is bisphenol a epoxy resin.
  4. 4. The interfacial agent primer for glass articles according to claim 1, wherein said polyurethane acrylic hybrid resin is prepared by the steps of: ① Under the protection of nitrogen, 26-30 parts by mass of polycarbonate diol, 16-20 parts by mass of polytetrahydrofuran diol, 5-7 parts by mass of glyceryl monostearate, 3-5 parts by mass of 1, 2-octanediol and 20-24 parts by mass of ethylene glycol monobutyl ether are added into a reactor, the temperature is raised to 58-62 ℃, the mixture is stirred uniformly, then 24-28 parts by mass of isophorone diisocyanate and 18-20 parts by mass of hexamethylene diisocyanate are added, the mixture is heated to 75-80 ℃, the mixture is stirred for 2-3 hours under heat preservation, then 4-6 parts by mass of hydroxyethyl methacrylate and 0.1-0.3 part by mass of p-hydroxyanisole are added, the mixture is stirred for 2.5-3.5 hours under heat preservation, and a polyurethane prepolymer is obtained, and then the reaction system is cooled to 50-55 ℃ for standby; ② Uniformly mixing 16-20 parts by mass of styrene, 16-20 parts by mass of butyl methacrylate, 6-10 parts by mass of lauryl methacrylate, 5-7 parts by mass of glycidyl methacrylate, 14-16 parts by mass of isooctyl acrylate, 3-5 parts by mass of methacrylic acid, 4-6 parts by mass of hydroxypropyl methacrylate, 1.6-2.0 parts by mass of tert-butyl peroxybenzoate/benzoyl peroxide compound and 24-26 parts by mass of ethylene glycol monobutyl ether to obtain an acrylic acid monomer-initiator mixed solution for standby; ③ Heating the polyurethane prepolymer to 80-85 ℃, slowly dropwise adding an acrylic monomer-initiator mixed solution for 2-3 hours, keeping the temperature and stirring for reacting for 2-3 hours after the dropwise adding is finished, then cooling to 55-65 ℃, adding a neutralizing agent for neutralizing to pH=8-8.5, then slowly adding deionized water, adjusting the solid content of the system to 42-45%, continuously stirring for 30 minutes, cooling to below 40 ℃, filtering, and discharging to obtain the polyurethane acrylic hybrid resin.
  5. 5. The interfacial primer for glass articles according to claim 4, wherein in the preparation of polyurethane acrylic hybrid resin, said hexamethylene diisocyanate is cosmeceutical Desmodur 2655 and said isophorone diisocyanate is cosmeceutical VESTANAT T1890E.
  6. 6. The interfacial agent primer for glass articles according to claim 1, wherein said methylated melamine resin is CYMEL 325.
  7. 7. The interfacial agent primer for glass articles according to claim 1, wherein said fluorine-containing dispersant is Neos Futagent series and said polycarboxylate dispersant is BYK-P104S.
  8. 8. The interfacial agent primer for glass articles according to claim 1, wherein said wetting agent is Tego Wet 280, said leveling agent is BYK-380, said defoamer is Tego Foamex 825, said silane coupling agent is KH-560, said heat stabilizer is Irganox 1010, said thickener is RM-8W, said pH adjustor is AMP-95, and said film-forming aid is dipropylene glycol butyl ether.
  9. 9. The interfacial agent primer for glass articles according to claim 1, wherein said blocked isocyanate curing agent is Bayhydur BL 2805.
  10. 10. A method of preparing an interfacial agent primer for glass articles as defined in claim 1, comprising the steps of: a) Stirring and mixing 9-11 parts by mass of deionized water and a proportioning amount of fluorine-containing dispersing agent uniformly, adding a proportioning amount of nano PTFE, stirring and mixing uniformly to obtain nano PTFE dispersion liquid, stirring and mixing 7-9 parts by mass of deionized water and a proportioning amount of polycarboxylate dispersing agent uniformly, adding a proportioning amount of nano silicon dioxide, and stirring and mixing uniformly to obtain nano silicon dioxide dispersion liquid; b) Stirring and mixing the nano PTFE dispersion liquid and the nano silicon dioxide dispersion liquid uniformly, adding a part of defoaming agent in proportion, stirring and mixing uniformly, then adding fluorocarbon epoxy hybrid resin, polyurethane acrylic hybrid resin and methylated melamine resin in proportion, stirring and mixing uniformly, then adding wetting agent, flatting agent, residual defoaming agent, thermal stabilizer and film forming additive in proportion, stirring and mixing uniformly, then adding silane coupling agent in proportion, then adding pH regulator in proportion, stirring and mixing uniformly, then adding thickener in proportion and deionized water in residual proportion, stirring and mixing uniformly, filtering, discharging to obtain component A; c) And (3) uniformly stirring and mixing the component A and the component B according to the mass ratio of 100 (7.5-8.5) to obtain the interfacial agent primer suitable for glass products.

Description

Interfacial agent primer suitable for glass products and preparation method thereof Technical Field The invention relates to an interfacial agent primer suitable for glass products and a preparation method thereof, belonging to the technical field of interfacial agent primers. Background Glass products are widely used in the fields of construction, automobiles, electronics, medical treatment, advertisement and the like, and currently, glass products are often coated with a glass baking varnish on the surface of the glass product in order to provide decorative effects and color expression for the glass product, so as to improve the commercial value of the glass product, or to construct a physical protective layer on the surface of the glass product, so as to prevent the surface of the glass product from being scratched and scratched during use, improve the durability of the glass product, or to provide special surface functions (such as antifouling, anti-skid and antibacterial functions and the like) for the glass product. Glass as an inorganic nonmetallic material has an essential difference between the surface characteristics (high compactness, high polarity, high surface energy) and the glass baking varnish using organic resin as a film forming substance. The glass baking varnish is directly coated on the surface of glass, so that the requirements of industrial production on adhesive force and durability are difficult to meet, and therefore, a layer of interfacial agent primer is required to be arranged between the surface of a glass product and the top paint, so that the wear resistance and collision resistance of the glass baking varnish are improved, and the loss of the glass product in the filling and transportation processes is reduced. The prior interfacial agent is mainly polyurethane primer, the yellowing resistance of the polyurethane primer (the polyurethane primer has poor weather resistance and is easy to oxidize to cause yellowing of a coating, and for transparent glass products or light-colored finish paint, the yellowing of the primer can be directly shown through the finish paint to cause yellowing and scrapping of the glass products) and high-temperature stability (after the surface of the glass products is coated with the interfacial agent primer, the glass baking paint is required to be coated again, the glass baking paint is usually required to be baked at a high temperature of about 120-180 ℃, and the common polyurethane primer is easy to crack, lose light, yellow, pulverize and the like at a high temperature to cause scrapping of the glass products), the adhesive force, the wear resistance and the like are insufficient, so that the use requirements of the interfacial agent primer for the glass products can not be well met. Disclosure of Invention In view of the foregoing problems of the prior art, an object of the present invention is to provide an interfacial agent primer suitable for glass products and a method for preparing the same. In order to achieve the above purpose, the present invention adopts the following technical scheme: an interfacial agent primer suitable for glass products comprises an A component and a B component, wherein the A component has the following composition and proportion: 38-42 parts by mass of fluorocarbon ring oxygen hybrid resin; 20-24 parts by mass of polyurethane acrylic hybrid resin; 2.8-3.2 parts by mass of nano PTFE; 3.8-4.2 parts by mass of nano silicon dioxide; 2.5-3 parts by mass of methylated melamine resin; 1 to 1.4 parts by mass of fluorine-containing dispersant; 1.6-2 parts by mass of polycarboxylate dispersant; 0.8-1.2 parts by mass of wetting agent; 0.2 to 0.4 mass portion of leveling agent; 0.2-0.4 part by mass of defoaming agent; 1.8-2.2 parts by mass of a silane coupling agent; 0.4-0.6 part by mass of heat stabilizer; 0.4-0.6 parts by mass of thickener; 0.1-0.3 part by mass of pH regulator; 3.8-4.2 parts by mass of film forming auxiliary agent; 18-22 parts of deionized water; The component B is a closed isocyanate curing agent; the mass ratio of the component A to the component B is 100 (7.5-8.5); The fluorocarbon epoxy hybrid resin is prepared by polymerization reaction of hexafluorobisphenol A diglycidyl ether, epoxy resin and acrylic acid monomers, wherein the acrylic acid monomers consist of Methyl Methacrylate (MMA), butyl Acrylate (BA), hydroxyethyl methacrylate (HEMA), methacrylic acid (MAA) and polyethylene glycol methacrylate (PEG-MA); The polyurethane acrylic hybrid resin is obtained by polymerization reaction of polyurethane prepolymer and acrylic monomer, wherein the polyurethane prepolymer is prepared by reaction of Hexamethylene Diisocyanate (HDI), isophorone diisocyanate (IPDI), polycarbonate diol (PCDL), polytetrahydrofuran diol (PTMEG), glycerol Monostearate (GMS), hydroxyethyl methacrylate (HEMA), p-hydroxyanisole (MEHQ) and 1, 2-octanediol, and the acrylic monomer is prepared by reaction of Styrene (ST), butyl Metha