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Preparation method of flame-retardant artificial stone containing nano perovskite oxide

A technology of nano-calcium and oxides, applied in chemical instruments and methods, cobalt compounds, inorganic chemistry, etc., can solve the problems of poor flame retardancy and heat resistance, poor surface gloss, poor surface abrasion resistance, etc. Effects of aging, improving service life, and increasing loss on ignition index

Active Publication Date: 2016-08-31
GUANGXI LISHENG STONE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current artificial stone still has the disadvantages of low strength, poor surface abrasion resistance, weak flame retardancy and heat resistance, and poor surface gloss.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of complex La 0.7 Sr 0.3 CoO 3 With UIO-66:

[0026] (a) Weigh lanthanum nitrate, cobalt nitrate, strontium nitrate and nitric acid in proportion, dissolve them in deionized water, and prepare a nitrate solution, wherein the molar ratio of nitric acid: metal ion: water is 1:4:70; Citric acid was dissolved in deionized water to prepare a citric acid solution, wherein the molar ratio of citric acid and water was 6:40;

[0027] (b) Heat the mixed nitrate solution to 70°C, add dropwise citric acid solution under stirring, the molar ratio of the amount of citric acid added to the metal ion is 1:1; mix the nitrate solution and citric acid solution thoroughly and use concentrated The pH of the solution was adjusted to 7 with ammonia water; a gel was obtained after keeping at 80°C for 2 hours;

[0028] (c) Dry the obtained gel at 100°C to form a dry gel, and then treat it at 400°C for 1 hour to obtain the nano-perovskite catalyst La 0.7 Sr 0.3 CoO 3 .

...

Embodiment 2

[0032] (1) Preparation of complex La 0.8 Sr 0.2 CoO 3 With UIO-66:

[0033] (a) Weigh lanthanum nitrate, cobalt nitrate, strontium nitrate and nitric acid in proportion, dissolve them in deionized water, and prepare a mixed nitrate solution, in which the molar ratio of nitric acid: metal ion: water is 2:4:70; otherwise known as Get citric acid and be dissolved in deionized water, be mixed with citric acid solution, wherein the mol ratio of citric acid and water is 8:40;

[0034] (b) Heat the mixed nitrate solution to 70°C, add the citric acid solution dropwise under stirring, the molar ratio of the amount of citric acid added to the metal ion is 1:2; mix the nitrate solution and citric acid solution thoroughly and use concentrated The pH of the solution was adjusted to 7 with ammonia water; a gel was obtained after being kept at 75°C for 3 hours;

[0035] (c) Dry the obtained gel at 100°C to form a dry gel, and then treat it at 350°C for 1 hour to obtain the nano-perovskit...

Embodiment 3

[0039] (1) Preparation of complex La 0.9 Sr 0.1 CoO 3 With UIO-66:

[0040] (a) Weigh lanthanum nitrate, cobalt nitrate, strontium nitrate and nitric acid in proportion, dissolve them in deionized water, and prepare a nitrate solution, wherein the molar ratio of nitric acid: metal ion: water is 1:3:70; Citric acid was dissolved in deionized water to prepare a citric acid solution, wherein the molar ratio of citric acid and water was 5:40;

[0041] (b) Heat the mixed nitrate solution to 80°C, add citric acid solution dropwise under stirring, the molar ratio of the amount of citric acid added to the metal ion is 1:1; mix the nitrate solution and citric acid solution thoroughly and use concentrated The pH of the solution was adjusted to 7 with ammonia water; a gel was obtained after keeping at 80°C for 2 hours;

[0042] (c) Dry the obtained gel at 90°C to form a dry gel, and then treat it at 400°C for 1 hour to obtain the nano-perovskite catalyst La 0.9 Sr 0.1 CoO 3 .

[...

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PUM

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Abstract

The invention relates to a preparation method of a flame-retardant artificial stone containing nano perovskite oxide. The nano perovskite oxide and a metal organic framework UIO material are jointly added into a ternary polyene ester material (such as talcum powder, quartz and phenolic resin), therefore, the heat resistance and the strength of the artificial stone are improved, the aging time of the artificial stone is shortened, the artificial stone can not be degraded for a long time under the high temperature action, the good flame-retardant effect can be kept, and the loss-on-ignition (LOI) index is significantly increased.

Description

technical field [0001] The invention relates to a method for preparing flame-retardant artificial stone containing nano perovskite oxide, belonging to the field of building materials. Background technique [0002] With the improvement of people's living standards and living conditions, the interior decoration industry is developing rapidly, and the amount of decoration building materials is huge. Among them, stone is one of the most commonly used and most basic building materials, widely used in floors, walls and The paving of the countertop. The mining cost of natural stone is high, the pollution is large, and it contains a large amount of natural radioactive substances, which is harmful to human health. With the continuous development of the material field, the performance of artificial stone has gradually improved, approaching or even surpassing natural stone, and it is more and more accepted by the market and users, and is widely used in cabinets, bathrooms, floors, and...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08L87/00C08K13/02C08K3/22C08K3/34C08K5/3492C08K5/521C08K3/32C08G83/00C01G51/00
CPCC01G51/006C04B14/36C04B24/40C04B26/122C04B2103/63C04B2111/28C04B2111/542C08G83/008C08K2201/003C08K2201/011C08L61/06C08L2201/02C08L2201/08C08L2201/14C08L87/00C08K13/02C08K2003/2289C08K3/34C08K5/34922C08K5/521C08K2003/325C04B14/042C04B22/0013C04B14/06C04B14/18C04B24/128C04B24/003C04B14/366C04B14/20C04B20/008
Inventor 骆佳豪
Owner GUANGXI LISHENG STONE CO LTD
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