Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of ultraviolet curing modified amino acrylate resin and its preparation method

A technology of amino acrylate and monohydroxy acrylate, which is applied in the field of UV-cured modified amino acrylate resin and its manufacture, can solve the problems of limited use, insufficient flexibility, and high rigidity of the paint film, and achieve good flexibility, The effect of lowering the glass transition temperature

Active Publication Date: 2018-04-10
HUNAN JINHAI SCI & TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The curing speed of this resin is fast, but the rigidity of the paint film after curing is large and the flexibility is insufficient, which limits its use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of ultraviolet curing modified amino acrylate resin and its preparation method
  • A kind of ultraviolet curing modified amino acrylate resin and its preparation method
  • A kind of ultraviolet curing modified amino acrylate resin and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add 156g of hexamethylolmelamine hexamethyl ether, 19.08g of diethylene glycol, and 1.56g of p-toluenesulfonic acid into a 2000 mL three-neck flask, stir and raise the temperature to 50-80°C for 2 hours, then vacuum and distill it out The methyl alcohol that generates obtains the etherified amino resin of diethylene glycol chain extension;

[0026] (2) Add 278g of hydroxyethyl acrylate, 1.55g of 2,6-di-tert-butyl-p-cresol, and 1.02g of p-hydroxyanisole, stir and heat up to 70-100°C, react for 1 hour, and vacuumize and distill under reduced pressure. Methanol, and gradually increase the vacuum degree to -0.095MPa until basically no methanol is distilled to obtain diethylene glycol-modified aminoacrylate resin.

Embodiment 2

[0028] (1) Add 156g of hexamethylolmelamine hexamethyl ether, 140g of polyoxypropylene glycol (molecular weight: 1000), and 1.56g of p-toluenesulfonic acid into a 2000 mL three-neck flask, stir and heat up to 50-80°C for 2 hours, then pump Vacuum decompression distills the generated methanol to obtain the diethylene glycol chain-extended methyl etherified amino resin;

[0029] (2) Add 278g of hydroxyethyl acrylate, 1.55g of 2,6-di-tert-butyl-p-cresol, and 1.02g of p-hydroxyanisole, stir and heat up to 70-100°C, react for 1 hour, and vacuumize and distill under reduced pressure. Methanol, and gradually increase the vacuum degree to -0.095MPa until basically no methanol distills out to obtain a polyoxypropylene glycol-modified aminoacrylate resin.

Embodiment 3

[0031] (1) Add 156g of hexamethylolmelamine hexamethyl ether, 200g of polyoxypropylene glycol (molecular weight: 1000), and 1.56g of p-toluenesulfonic acid into a 2000 mL three-neck flask, stir and raise the temperature to 50-80°C for 2 hours, then pump Vacuum decompression distills the generated methanol to obtain the diethylene glycol chain-extended methyl etherified amino resin;

[0032] (2) Add 278g of hydroxyethyl acrylate, 1.55g of 2,6-di-tert-butyl-p-cresol, and 1.02g of p-hydroxyanisole, stir and heat up to 70-100°C, react for 1 hour, and vacuumize and distill under reduced pressure. Methanol, and gradually increase the vacuum degree to -0.095MPa until basically no methanol distills out to obtain a polyoxypropylene glycol-modified aminoacrylate resin.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of resin synthesis, and relates to an ultraviolet-curing modified aminoacrylate resin and a preparation method thereof. The method concretely comprises the following steps: 1, mixing hexamethoxymethylmelamine, diol and a catalyst, stirring and heating above materials to 50-80DEG C, reacting for 2h, and carrying out vacuum pumping and reduced pressure distillation to remove generated methanol in order to obtain diol chain-extended methylated amino resin; and 2, adding monohydroxyl acrylate and a polymerization inhibitor, stirring and heating above materials to 70-100DEG C, reacting for 1h, carrying out vacuum pumping and reduced pressure distillation to remove methanol, and gradually improving the vacuum degree until no methanol is distilled off in order to obtain the aminoacrylate resin. The aminoacrylate resin prepared in the invention has the advantages of low cost, fast curing speed, excellent basic performances, small viscosity and good flexibility.

Description

technical field [0001] The invention belongs to the field of resin synthesis. It relates to an ultraviolet light curing modified aminoacrylate resin and a manufacturing method thereof. Background technique [0002] UV-curable resin is the main component of UV-curable coatings, which constitutes the basic skeleton of the cured coating and determines the basic properties of the cured coating such as hardness, strength, flexibility, adhesion, and weather resistance. At present, UV-curable resins mainly include epoxy acrylate, polyurethane acrylate, polyester acrylate, amino acrylate, and some special light-curable resins (polyether acrylate, polyene oligomer, siloxane acrylate Wait). [0003] UV-curable resins generally have a high viscosity, and when made into UV coatings, reactive diluents need to be added to dilute to reduce the viscosity, and reactive diluents are often more or less irritating due to their small molecular weight. Epoxy acrylate and urethane acrylate gene...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/332C08G65/333C07D251/70
CPCC07D251/70C08G65/3322C08G65/33396
Inventor 刘立新唐慧敏
Owner HUNAN JINHAI SCI & TECH