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Waterborne flame-retardant emulsion

A flame-retardant emulsion, water-based technology, applied in coatings, fire-resistant coatings, etc., can solve the problems of failing to meet market requirements, low cross-linking degree, and small molecular weight of flame-retardant emulsions

Inactive Publication Date: 2017-05-24
SHANDONG TIANYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic flame retardant emulsion has a small molecular weight and a low degree of crosslinking, which is far from meeting market requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The water-based flame retardant emulsion is composed of A component and B component, and the weight ratio relationship between A component and B component is 3:1; the above-mentioned A component is prepared by the following steps:

[0024] (1) Mix 35 parts of methyl methacrylate, 50 parts of butyl acrylate, 100 parts of deionized water, 3 parts of surfactant sodium dodecylbenzenesulfonate and 10 parts of diacetone acrylamide to prepare the base liquid ;

[0025] (2) Mix 150 parts of deionized water, 3 parts of surfactant sodium dodecylbenzenesulfonate, 180 parts of brominated styrene, 30 parts of butyl acrylate, 70 parts of methyl methacrylate and 5 parts of methyl acrylate Mix evenly to obtain a pre-emulsion;

[0026] (3) Dissolve 5 parts of potassium persulfate in 50 parts of deionized water to make an initiator solution;

[0027] (4) At a temperature of 80°C, first add 10% of the total amount of pre-emulsion to the base liquid, and at the same time add the initiato...

Embodiment 2

[0031] The water-based flame retardant emulsion provided in this example is composed of A component, B component and C component, and the weight ratio relationship between A component, B component and C component is 300:100:2; Part and B component are the same as A component and B component described in Example 1, that is, A component and B component in this example are prepared by the method described in Example 1; C component It is RM-8W thickener; when using it, first mix component A, component B and component C according to the weight ratio of 300:100:2, and use it after mixing evenly.

Embodiment 3

[0033] The water-based flame retardant emulsion is composed of A component and B component, and the weight ratio relationship between A component and B component is 7:1; the above-mentioned A component is prepared by the following steps:

[0034] (1) Mix 45 parts of methyl methacrylate, 70 parts of butyl acrylate, 150 parts of deionized water, 4 parts of surfactant sodium dodecylbenzenesulfonate and 15 parts of diacetone acrylamide to prepare the base liquid;

[0035] (2) Mix 170 parts of deionized water, 4 parts of surfactant sodium dodecylbenzenesulfonate, 190 parts of brominated styrene, 50 parts of butyl acrylate, 80 parts of methyl methacrylate and 8 parts of methyl acrylate Mix evenly to obtain a pre-emulsion;

[0036] (3) Dissolve 8 parts of potassium persulfate in 70 parts of deionized water to make an initiator solution;

[0037] (4) At a temperature of 90°C, first add 10% of the total amount of the pre-emulsion to the base liquid, and at the same time add the initi...

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Abstract

The invention discloses waterborne flame-retardant emulsion, which comprises an ingredient A and an ingredient B, wherein the ingredient A is prepared through the following steps: (1) uniformly mixing methyl methacrylate, butyl acrylate, water, a surfacetant and diacetone acrylamide, so as to obtain a base solution; (2) uniformly mixing water, the surfacetant, brominated styrene, butyl acrylate, methyl methacrylate and methyl acrylate so as to obtain a pre-emulsion; (3) preparing potassium persulfate into an initiator aqueous solution; and (4) adding 10% pre-emulsion into a base solution, dropwise adding the initiator solution, when the system temperature is increased, dropwise adding the residual pre-emulsion, fully reacting after dropwise adding is finished, regulating the pH value of the system to 7-8 with alkali after reaction is over, then adding a wetting agent and a defoamer, and uniformly mixing all the ingredients so as to obtain the ingredient A; the ingredient B is adipic dihydrazide aqueous solution. A paint film obtained by the emulsion can be crosslinked at a normal temperature, is high in adhesion force, high in coating mechanical performance, achieves the swabbing resistant times of 3000, and achieves the water resistance of 240 hours.

Description

technical field [0001] The invention relates to a water-based flame-retardant emulsion. Background technique [0002] At present, the application fields of environmentally friendly water-based flame retardant materials continue to expand, and the market prospect is bright. Flame retardants such as tetrabromobisphenol A, decabromodiphenylethane, decabromodiphenyl ether, etc. are added to most water-based paints on the market. It has great requirements, and the water resistance, alkali resistance and weather resistance are poor, which greatly limits their wide application. [0003] From the beginning of the 20th century to the present, a lot of water-based flame-retardant emulsions have been studied all over the world, and water-based flame-retardant emulsions need to be applied in many industrial fields. At present, the domestic flame retardant emulsion has a small molecular weight and a low degree of crosslinking, which is far from meeting market requirements. Contents o...

Claims

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Application Information

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IPC IPC(8): C09D125/18C09D5/18C08F212/14C08F220/18C08F220/14C08F220/54
CPCC08F212/14C09D5/18C09D125/18C08F220/1804C08F220/14C08F220/54
Inventor 王桂学宋奇王世强钟世强孟祥琦李希军
Owner SHANDONG TIANYI CHEM