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Flame retardant polyacrylate emulsion and preparation method thereof

A technology of polyacrylate emulsion and ethyl acrylate, which can be used in coatings, fire-retardant coatings, etc., can solve the problems of polluting the atmospheric environment, the flame retardant effect of inorganic flame retardants and organic phosphorus-based flame retardants needs to be improved, and the cost can be achieved. Low cost, excellent environmental protection, large specific surface area

Active Publication Date: 2019-08-20
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Organic halogen flame retardants release a large amount of toxic gases during combustion, seriously polluting the atmosphere, and the flame retardant effects of inorganic flame retardants and organophosphorus flame retardants need to be improved

Method used

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  • Flame retardant polyacrylate emulsion and preparation method thereof

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preparation example Construction

[0024] The preparation method of flame-retardant type polyacrylate emulsion of the present invention comprises the steps:

[0025] (1) Preparation of phosphorus-containing polyacrylate emulsion

[0026] Dissolve 0.879-0.894g of sodium dodecylsulfonate in 90g of water, 0.235-0.248g of potassium persulfate and 0.0335-0.0345g of sodium bisulfite in 10g of water, transfer to a 500mL three-necked flask, and then add 33.678-33.947g butyl acrylate, 4.299-4.342g ethyl acrylate, 2.520-2.611g acrylic acid, 0.842-0.878g isooctyl acrylate, 0.849-0.888g hydroxyethyl acrylate and 2.520-2.611g 2-hydroxyethyl methyl Acrylate bis(diphenylphosphine) phosphate, heat up to 70-75°C at 300r / min, and keep it warm for 0.5-1h. Then, adjust the temperature of the water bath to 78-80°C, add dropwise 78.421-78.452g butyl acrylate, 9.802-9.947g ethyl acrylate, 5.882-5.984g acrylic acid, 1.962-1.973g isooctyl acrylate, 1.965-1.990g Mixed monomer formed by hydroxyethyl acrylate and 2.520-2.611g 2-hydroxye...

Embodiment 1

[0036] (1) Preparation of phosphorus-containing polyacrylate emulsion

[0037]Dissolve 0.879g sodium dodecylsulfonate in 90g water, dissolve 0.235g potassium persulfate and 0.0335g sodium bisulfite in 10g water respectively, transfer to a 500mL three-necked flask, and then add 33.678g butyl acrylate, 4.299g ethyl acrylate, 2.520g acrylic acid, 0.842g isooctyl acrylate, 0.849g hydroxyethyl acrylate and 2.520g 2-hydroxyethyl methacrylate bis(diphenylphosphine) phosphate, at 300r / min The temperature was raised to 70°C, and the reaction was kept for 0.5h. Then, the temperature of the water bath was adjusted to 78°C, and 78.421g of butyl acrylate, 9.802g of ethyl acrylate, 5.882g of acrylic acid, 1.962g of isooctyl acrylate, 1.965g of hydroxyethyl acrylate and 2.520g of 2-hydroxyethyl methyl 2.091g sodium dodecyl sulfonate and 50g water emulsifier aqueous solution formed by 2.091g sodium dodecyl sulfonate and 50g water, by 0.745g potassium persulfate, 0.1065g sodium bisulfite And...

Embodiment 2

[0043] (1) Preparation of phosphorus-containing polyacrylate emulsion

[0044] Dissolve 0.894g of sodium dodecylsulfonate in 90g of water, 0.248g of potassium persulfate and 0.0345g of sodium bisulfite in 10g of water, transfer them to a 500mL three-necked flask, and then add 33.947g of butyl acrylate, 4.342g ethyl acrylate, 2.611g acrylic acid, 0.878g isooctyl acrylate, 0.888g hydroxyethyl acrylate and 2.611g 2-hydroxyethyl methacrylate bis(diphenylphosphine) phosphate, at 300r / min Raise the temperature to 75°C, and keep the reaction for 1h. Then, the temperature of the water bath was adjusted to 80°C, and 78.452g of butyl acrylate, 9.947g of ethyl acrylate, 5.984g of acrylic acid, 1.973g of isooctyl acrylate, 1.990g of hydroxyethyl acrylate and 2.611g of 2-hydroxyethylmethyl acrylate were added dropwise. 2.109g sodium dodecyl sulfonate and 50g water emulsifier aqueous solution formed by 2.109g sodium dodecyl sulfonate and 50g water, by 0.762g potassium persulfate, 0.1077g s...

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Abstract

The invention provides an attapulgite / phosphorus-containing polyacrylate composite emulsion and a preparation method thereof. The preparation method comprises following steps: synthesizing phosphorus-containing polyacrylate emulsion; and through mercapto-alkene click reactions, introducing double bond functionalized attapulgite into the phosphorus-containing polyacrylate emulsion to prepare the attapulgite / phosphorus-containing polyacrylate composite emulsion. The burning speed of a leather sample coated by the ATP / phosphorus-containing polyacrylate composite emulsion is 0.016 mm / s; the limitoxygen index is 29.4%; and the maximal smoke density is 5.62%. Compared with a leather sample coated by pure polyacrylate emulsion, the burning speed and the maximal smoke density of a leather samplecoated by the ATP / phosphorus-containing polyacrylate composite emulsion are reduced by 80.49% and 81.68% respectively, the limit oxygen index is improved by 60.66%, and the flame retardant performanceis obviously improved.

Description

technical field [0001] The invention belongs to the technical field of emulsion preparation, and in particular relates to a flame-retardant polyacrylate emulsion and a preparation method thereof. Background technique [0002] Polyacrylate emulsion synthesized with acrylic acid or acrylates as monomer not only has a wide range of sources and low cost, but also has good film-forming properties, mechanical properties, weather resistance, environmental protection, etc., and can be used as coatings, adhesives, elastic Body, medical materials and building materials, etc., are widely used in industry, agriculture, construction and daily life and other fields. However, polyacrylate is easy to burn in case of fire, causing huge property loss and threatening life safety, so its application in various fields is limited. Therefore, the research on the flame retardancy of polyacrylate is of great significance. [0003] At present, the flame retardant modification of polyacrylate emulsi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08K9/02C08K9/06C08K3/34C08F220/18C08F220/06C08F220/20C08F230/02C09D133/08C09D5/18
CPCC08F220/18C08K3/346C08K9/02C08K9/06C08K2201/003C09D5/18C09D143/02C08F220/1804C08L43/02C08F230/02C08F220/06C08F220/1808C08F220/20
Inventor 鲍艳李欣倩唐培马建中张文博刘超
Owner SHAANXI UNIV OF SCI & TECH
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