Amphipathic polymer resin as well as preparation and use thereof in production of intelligent breathing coating

A technology of amphiphilic polymers and resins, applied in the field of polymers, can solve the problems of small moisture absorption capacity, ineffective humidity control, poor water resistance, etc.

Inactive Publication Date: 2008-08-27
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic polymer emulsion-based moisture-controlling coatings have good flexibility, decoration, and tensile strength, but have low moisture absorption rate, small moisture absorption capacity, and poor water resistance. If they are immersed in water for a long time, they are prone to powder falling, foaming, and even falling off. ;Moisture-adjusting paint of organic polymer glue type, which gradually dissolves and falls off when exposed to water
[0006] Traditional humidity-controlling coatings, whether they are inorganic or organic, have the following disadvantages: 1) When the humidity is low, they do not have the ability to regulate humidity and must cooperate with a humidifier to function
Without a humidifier, they also seem powerless to low humidity
2) For areas with high humidity, especially in the rainy season, traditional humidity-adjusting coatings will quickly reach a saturated state of absorbing "water", which is prone to peeling off due to long-term excessive humidity
3) The water resistance of the coating film is poor, and it will foam and fall off after encountering water (especially the substrate is permeable), which will affect its appearance and performance
[0007] Traditional humidity-controlling coatings have low responsiveness to water, short action time, and insignificant humidity-conditioning effects, so they can also be called moisture-absorbing / releasing moisture-controlling coatings. Strictly speaking, they should be classified as anti-condensation coatings

Method used

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  • Amphipathic polymer resin as well as preparation and use thereof in production of intelligent breathing coating
  • Amphipathic polymer resin as well as preparation and use thereof in production of intelligent breathing coating
  • Amphipathic polymer resin as well as preparation and use thereof in production of intelligent breathing coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1: the preparation of amphiphilic polymer resin

[0063] Recipe: by weight

[0064] 50 parts of methacrylic acid, 80 parts of methyl methacrylate, 10 parts of butyl acrylate, 10 parts of hydroxypropyl methacrylate, 10 parts of diacetone acrylamide, 50 parts of adipic hydrazide, and 80 parts of isopropanol.

[0065] Preparation method: Dissolve methacrylic acid, methyl methacrylate, butyl acrylate, hydroxypropyl methacrylate, diacetone acrylamide, and adipic hydrazide monomers in the solvent according to the above formula, add the total amount of mixed monomers Measure 5% benzoyl peroxide; react the mixture at 95°C for 3 hours, then cool down to 60°C, distill off unreacted monomers and part of the solvent under reduced pressure, then neutralize with ammonia water to pH=7-10, Then the water is adjusted to a viscosity of 15-150s (coated -6 Cup measurement), the solid content is 30-70%, and the transparent amphiphilic polymer resin solution is obtained.

[006...

Embodiment 2

[0069] Embodiment 2: the preparation of amphiphilic polymer resin

[0070] Recipe: by weight

[0071] 25 parts of methacrylic acid, 40 parts of methyl methacrylate, 40 parts of butyl acrylate, 30 parts of hydroxypropyl methacrylate, 20 parts of acrylamide, 10 parts of diacetone acrylamide, 30 parts of adipic hydrazide, 40 parts of ethanol share.

[0072] Process: Dissolve methacrylic acid, methyl methacrylate, butyl acrylate, hydroxypropyl methacrylate, acrylamide, diacetone acrylamide, and adipic hydrazide monomers in ethanol according to the above formula, add the mixed Azobisisobutyronitrile with a total volume of 1%; heat up to 65°C and react for 4 hours, then cool down to 25°C, distill off unreacted monomers and part of the solvent under reduced pressure, and then neutralize with ammonia water to pH=7~10 , and then the water is adjusted to a viscosity of 15-150s (coated -6 Cup measurement), the solid content is 30-70%, and the transparent amphiphilic polymer resin solu...

Embodiment 3

[0074] Embodiment 3: the preparation of amphiphilic polymer resin

[0075] Recipe: by weight

[0076] 5 parts of methacrylic acid, 40 parts of methyl methacrylate, 50 parts of butyl acrylate, 10 parts of hydroxypropyl methacrylate, 5 parts of acrylamide, 25 parts of diacetone acrylamide, 5 parts of adipic hydrazide, 20 parts of water share.

[0077] Process: Dissolve methacrylic acid, methyl methacrylate, butyl acrylate, hydroxypropyl methacrylate, acrylamide, diacetone acrylamide, and adipic dihydrazide monomers in water according to the above formula, and add mixed monomers The total amount of ammonium persulfate is 0.2%; the temperature is raised to 80°C for 1 hour, and then the temperature is lowered to 40°C, and the unreacted monomer and part of the solvent are evaporated under reduced pressure, and then neutralized with ammonia water to pH = 7-10, and then adjusted with water until the viscosity is 15~150s (coated -6 Cup measurement), the solid content is 30-70%, and ...

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Abstract

The invention provides an amphiphilic polymer resin with hydrophilicity and hydrophobicity, which is polymerized by methacrylic acid, methyl methacrylate, butyl acrylate, beta-hydroxypropyl methacrylate, acrylamide, diacetone acrylamide and adipic dihydrazide monomers or the like. The amphiphilic polymer resin can be used as main filming material of paint to combine various cell forming materials to prepare the paint with decorativeness, humidity adjustment, permeability, thermal insulation, dew prevention, water and alkali resistance and anti-bacterial property, as one multifunctional intelligent breath paint. The product can overcome the defects of traditional air conditioner as high energy consumption and can avoid paint from dropping off wall caused by leakage and water, thereby prolonging the service life of paint, and the invention has wide application.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and relates to a polymer resin, in particular to a hydrophilic and lipophilic amphiphilic polymer resin and a preparation method thereof. The invention also relates to the use of the amphiphilic polymer resin in the production of intelligent breathing application in coatings. Background technique [0002] With the development of science and technology and the improvement of people's living standards, the requirements for interior decoration are getting higher and higher. The safety and comfort of the indoor environment have always been the goals pursued by people. Indoor humidity is an important indicator that affects human health and comfort. According to research, the relative humidity of indoor air is in the range of 40% to 60%, which is the most beneficial to human health and has a better sense of comfort. When the humidity is lower than 40%, the environment is too dry, the items are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/00C09D133/00C09D5/00
Inventor 王荣民吕维华何玉凤王博赟
Owner NORTHWEST NORMAL UNIVERSITY
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