Silicon-containing Acrylate Polymer Composite Porous Respiratory Coating and Its Application

A silicon acrylate and acrylate technology, which is applied in the field of open-cell silicon-containing acrylate polymer composite porous breathing coatings, can solve the problems of whitening, poor leveling, poor decoration, and poor elasticity of the coating film. Increases affinity and helps to regulate humidity

Active Publication Date: 2016-08-31
国科广化(南雄)新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main film-forming substances of the above-mentioned functional coatings are polymer emulsions or water-soluble polymers. When forming films with porous diatomite and other inorganic fillers, the continuous polymer film will block the pores of the porous inorganic fillers. The permeability is severely reduced, which seriously affects the overall breathability of the prepared thick-layer coating, and the effective volume of the breathable space is very small; at the same time, the above-mentioned polymer film has poor water resistance, and the whitening of the film often occurs after the water is saturated. or shedding
Although the typical inorganic humidity-controlling breathing coating film has high hardness, good water resistance and abrasion resistance, it has large thixotropy, poor leveling and decorative properties, is easy to powder and fall off, has poor elasticity, and is easy to crack

Method used

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  • Silicon-containing Acrylate Polymer Composite Porous Respiratory Coating and Its Application
  • Silicon-containing Acrylate Polymer Composite Porous Respiratory Coating and Its Application
  • Silicon-containing Acrylate Polymer Composite Porous Respiratory Coating and Its Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: the surface treatment of porous silicon-containing inorganic filler

[0031] (1) Silane coupling agent methacryloxypropyltrimethoxysilane KH570 modified

[0032] Add 500g of porous diatomite (300 mesh, average particle size 48μm) into a 5L three-neck flask at room temperature at 30°C, then add 1900g of distilled water and 100g of ethanol, stir, and then dropwise add 10g of silane coupling agent Methacryloxypropyltrimethoxysilane KH570, after the dropwise addition, add 0.2g of stannous octoate, stir at room temperature for 24 hours, then dry naturally, and then dry in an oven at 60°C to obtain silane Modified porous diatomaceous earth GZ-KH.

[0033] KH570 modified kaolin (1340 mesh, average particle size 10 μm), montmorillonite (800 mesh, average particle size 18 μm), bentonite (500 mesh, average particle size 25 μm), tourmaline powder (325 mesh, average particle size GL-KH, MT-KH, PR-KH, DS-KH, and GW-KH were respectively obtained in the same way as mic...

Embodiment 2

[0039] Embodiment 2: Functionalization treatment of silicon-containing porous inorganic filler

[0040] In a 1000mL three-necked flask at a room temperature of 30°C, 200g of the surface-modified porous silicon-containing inorganic filler GZ-KH prepared by (1) in the above example 1 was taken, then 500g of distilled water was added, and 1g of photocatalyst nano-titanium dioxide (particle diameter 30nm) was added under stirring. ), 1g of nano-zinc oxide (particle size 50nm), stirred at room temperature for 24 hours, then dried naturally, put into a 60°C oven after drying, and obtained the functionalized modified diatomite GZ-KH containing photocatalyst -TX.

[0041] Similarly, get the surface-modified porous silicon-containing inorganic filler GZ-KH 200g prepared by (1) in the above-mentioned example 1 at room temperature 30 DEG C in a three-necked flask of 1000mL, then add distilled water 500g, add 1g antibacterial agent metal silver powder ( The average particle size is 65nm)...

Embodiment 3

[0046] Take 145g of surface-modified diatomite GZ-KH in an environment of 15°C, then add 750g of water, and after mixing for 30 minutes, add 30g of thermoplastic methyl methacrylate-isobutyl methacrylate copolymer (average Particle size is 200μm, glass transition temperature Tg is 75℃), 2g emulsifier OP-10, 65g methyl methacrylate, 5g butyl methacrylate, 2g benzoyl peroxide (BPO), 1g N ,N-Dimethylaniline (DMA), mix evenly to form a slurry, quickly pour it into the corresponding mold after 10 minutes, then place the mold in a room temperature of 15°C for curing, observe and record the curing time, and demould after curing According to the corresponding test method, test the strength, water absorption, air permeability and water resistance, and the test results are listed in Table 2. The results of the breath test are listed in Table 3.

[0047] The curing time is determined by testing the drying time according to the method of GB / T 1728-1979.

[0048] The compressive strength...

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Abstract

The invention belongs to the field of functional coatings, and discloses a silicon-containing acrylate polymer porous breathing coating and an application thereof. The paint is composed of the following components in terms of mass percentage: 7-13% of acrylate monomer, 3-20% of thermoplastic acrylate polymer, 0.2-5% of emulsifier, and 3-1% of redox initiator 14.5-39.5% of surface-treated porous silicon-containing inorganic fillers, 25-50% of the above active ingredients in total, and 100% in total with water. The silicon-containing acrylate polymer porous breathing paint is made into a sheet or block material on a mold and then covered on the surface of a base material, or directly formed into a thick paste coating on the base material. The coating has the functions of decoration, breathability and water permeability, humidity control, sound reduction and heat insulation, and can also impart functions such as air purification, antibacterial, photocatalytic degradation, etc., and has broad application prospects.

Description

technical field [0001] The invention belongs to the field of functional coatings, in particular to an open-cell silicon-containing acrylate polymer composite porous breathing coating and its application. Background technique [0002] With the improvement of people's living standards, people's requirements for the space they live on are getting higher and higher, especially paying more attention to the environmental factors of human health (such as air humidity, formaldehyde, bacteria and viruses, etc.). Relative air humidity is an important parameter to measure the indoor environment. It is closely related to human health and work and life. If it is too high or too low, it will affect people's normal life. "Code for Design of Heating, Ventilation and Air Conditioning" GB50019-2003 believes that the best relative humidity range is 40-60%. When the relative humidity is too high (>60%), it is easy to cause metal surface corrosion, electrical insulation decline, and mildew of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02C09D4/06C09D7/12C09C3/12C09C3/08C09C3/06C09C1/28C09C1/42
Inventor 黄月文王斌
Owner 国科广化(南雄)新材料研究院有限公司
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