A kind of thermal insulation and environmental protection wall coating and preparation method thereof

A thermal insulation and environmental protection technology, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of small thermal conductivity, lower thermal conductivity of coating, poor thermal insulation performance, etc., and achieve the effect of small thermal conductivity

Active Publication Date: 2020-10-02
广东卡百利新材料科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a heat-insulating and heat-insulating environmental protection wall paint and a preparation method thereof. During the preparation process of the paint, phase-change heat-insulating microspheres are added, wherein the phase-change heat-insulating microspheres are filled with diatomite with paraffin wax, Then bond titanium dioxide on the surface of the paraffin wax by ball milling, and wrap the epoxy resin layer on the outside, and seal the surface and internal pores of the epoxy resin layer titanium dioxide composite diatomaceous earth so that the paraffin wax will not melt and flow out. Titanium dioxide is coated inside the cladding layer. Titanium dioxide has high light reflection performance, which makes the phase change heat-insulating microspheres have a certain light reflection ability. At the same time, the diatomite matrix is ​​a silicate material with a small thermal conductivity. It is filled with paraffin wax, which is a phase change material, and it undergoes a phase change when it is irradiated with light and heats up, thereby realizing the function of energy storage. When covering the epoxy resin layer, the paraffin wax on the surface of the diatomite will not melt and flow out at high temperature, so that the thermal insulation temperature difference of the coating is relatively large, and the coating ability of the epoxy resin further reduces the thermal insulation coefficient of the coating. In order to realize the heat insulation performance of the phase change thermal insulation microspheres, it solves the problem that the existing thermal insulation coatings usually use porous low thermal conductivity fillers to achieve the barrier effect, and add reflective materials to the coating. Air barrier realizes thermal insulation barrier, but the air layer cannot store heat, which leads to poor thermal insulation performance

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 thermal insulation and environmental protection wall coating and preparation method thereof
  • A kind of thermal insulation and environmental protection wall coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The concrete preparation process of water-soluble epoxy resin is as follows:

[0032] ① Add 1 kg of mellitic acid to 2.31 kg of thionyl chloride, raise the temperature to 80°C for reflux reaction for 10-12 hours, and then evaporate at 80°C to obtain melliticoyl chloride;

[0033] ②Weigh 1.95kg of p-aminoanisole and add it into 20L of dichloromethane, and add 0.55kg of triethylamine to it at the same time, then control the reaction temperature at 10°C, slowly add 1kg of melliticoyl chloride prepared in step ① to it, After the dropwise addition was complete, the reaction was carried out at constant temperature for 5 hours, and then vacuum distillation was carried out to obtain the product A;

[0034] ③Add 1kg of the product A prepared in step ② into 20L dimethyl sulfoxide, raise the temperature to 140°C and reflux, then add 2.01kg of hydroiodic acid dropwise into the reaction vessel, stir vigorously while adding, and after the addition is complete, After washing with sat...

Embodiment 2

[0037] The concrete preparation process of water-soluble epoxy resin is as follows:

[0038] ① Add 1 kg of mellitic acid to 1.1 kg of thionyl chloride, raise the temperature to 80°C for reflux reaction for 10-12 hours, and then evaporate at 80°C to obtain mellitic acid chloride; among them, mellitic acid and thionyl chloride are in molar ratio It is added in a ratio of 1:3, so that there are only three carboxybenzoyl chlorides in the prepared mellitic hexayl chloride;

[0039] ②Weigh 1.95kg of p-aminoanisole and add it into 20L of dichloromethane, and add 0.55kg of triethylamine to it at the same time, then control the reaction temperature at 10°C, slowly add 1kg of melliticoyl chloride prepared in step ① to it, After the dropwise addition was complete, the reaction was carried out at constant temperature for 5 hours, and then vacuum distillation was carried out to obtain the product A;

[0040] ③Add 1kg of the product A prepared in step ② into 20L dimethyl sulfoxide, raise t...

Embodiment 3

[0044] The specific preparation process of phase-change heat-insulating microspheres is as follows:

[0045] Step 1: Add 1kg of paraffin into the reaction vessel, heat up to 80°C and melt, add 0.23kg of diatomaceous earth to it, stir and mix at a constant temperature for 2-3 hours. When mixing, the paraffin is impregnated in diatomite, then filtered while hot, and the modified diatomite obtained after filtration is dried at room temperature;

[0046] Step 2: Add 1 kg of the modified diatomite prepared in step 1 into a small ball mill, and at the same time add 12 g of nanometer titanium dioxide therein, mix and grind for 30-40 minutes to obtain titanium dioxide composite diatomite;

[0047] Step 3: the water-soluble epoxy resin prepared by 3.4kg embodiment 1 is added in 25kg water, after stirring and dissolving, add the titanium dioxide composite diatomite prepared in 4.5kg step 2 wherein, stir and mix 3-5min, then at room temperature to Add 1.6kg of toluene-2,4-diisocyanate d...

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 discloses a thermal insulation and environment-friendly wall coating, which comprises, by weight, 54-58 parts of water-soluble epoxy resin, 34-37 parts of phase-change heat-insulating microspheres, 2-3 parts of a wetting agent, 1-2 parts of a defoaming agent, 5-6 parts of a dispersing agent, 2-4 parts of a thickening agent, 22-24 parts of a curing agent and 100 parts of water. In thepreparation process of the coating, the phase-change heat-insulating microspheres are added, wherein the phase-change heat-insulating microspheres are filled with paraffin wax in diatomite, titaniumdioxide is bonded on the surface of the paraffin wax through ball milling, and an epoxy resin layer is wrapped outside the titanium dioxide, the surface and internal pore channels of the titanium dioxide composite diatomite are closed and coated through the epoxy resin layer, the titanium dioxide has higher light reflection performance; meanwhile, the diatomite matrix is a silicate material, the heat conductivity coefficient is small; the diatomite is filled with the paraffin wax; the paraffin wax is a phase change material; and phase change occurs when the temperature is raised by light irradiation, so that the function of energy storage is achieved, and the heat insulation performance of the phase change heat-insulating microspheres is further achieved.

Description

technical field [0001] The invention belongs to the field of paint preparation, and relates to a thermal insulation and environmental protection wall paint and a preparation method thereof. Background technique [0002] Architectural thermal insulation coatings are applied on exterior walls or roofs to keep the temperature inside the house within a comfortable range through barriers, reflections, and radiation, thereby reducing energy consumption for air conditioning and heating. However, existing thermal insulation coatings are usually The barrier effect is achieved by using porous low thermal conductivity fillers, and reflective materials are added to the coating. Because the porous low thermal conductivity fillers achieve thermal insulation through the air barrier in the pores, but the air layer cannot store heat, which makes the thermal insulation performance poor, and directly Adding reflective materials to the paint, due to the high cost of the reflective materials, re...

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): C09D163/00C09D7/40
CPCC08K2003/2241C09D7/40C09D163/00C08L91/06C08K9/10C08K3/22C08K7/26
Inventor 罗志诚
Owner 广东卡百利新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap