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A kind of bulk flame-retardant acrylate emulsion and its preparation method and application

An acrylate and flame retardant technology, which is applied to a bulk flame retardant acrylate emulsion and a preparation method and application field thereof, can solve the problems of large negative impact on the environment, poor effect of improving flame retardant performance, etc., and achieves good flame retardant, Overcome the effects of poor dispersion and stability and high solid content

Active Publication Date: 2017-08-01
HUNAN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing polymer emulsions, which mainly improve the flame retardant properties by adding halogen-containing and phosphorus flame retardants, there are a series of defects such as large negative impact on the environment and poor improvement effect of flame retardant properties; the purpose of the present invention is to provide a preparation of flame retardant Method for bulk flame retardant acrylate emulsion with good dispersibility of flame retardant, high solid content, stability and environmental protection

Method used

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  • A kind of bulk flame-retardant acrylate emulsion and its preparation method and application
  • A kind of bulk flame-retardant acrylate emulsion and its preparation method and application
  • A kind of bulk flame-retardant acrylate emulsion and its preparation method and application

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Effect test

Embodiment 1

[0039] (1) At room temperature, weigh 5g of magnesium hydroxide particles and 25mL of absolute ethanol into the reactor, stir mechanically at high speed for 10 minutes, and then ultrasonically disperse for 30 minutes; heat up to 50°C, weigh 1g of methacryloxypropane Add trimethoxysilane into the reactor, continue mechanical stirring and ultrasonic reaction for 2h; filter the reaction product, wash, vacuum dry, grind, and seal it for storage for later use;

[0040] (2) Weigh 5g of the flame retardant magnesium hydroxide functional monomer obtained in (1) above, 1mL of acrylic acid, 5mL of methyl methacrylate, 11mL of butyl acrylate and 9mL of styrene, and ultrasonically disperse for 1h to obtain a mixed monomer solution ;

[0041] (3) 0.2g potassium persulfate is dissolved in 10mL distilled water to prepare initiator solution;

[0042] (4) Add 30mL of distilled water, 1.5g of sodium lauryl sulfate, 1.5g of OP-10 and 0.75g of sodium bicarbonate into the reactor, stir and dissolve...

Embodiment 2

[0046] (1) At room temperature, weigh 5g of magnesium hydroxide particles and 25mL of absolute ethanol into the reactor, stir mechanically at high speed for 10 minutes, and then ultrasonically disperse for 30 minutes; raise the temperature to 50°C, weigh 3g of vinyltrimethoxysilane and add Into the reactor, continue mechanical stirring and ultrasonic reaction for 3 hours; filter the reaction product, wash, vacuum dry, grind, seal and store for later use;

[0047] (2) Weigh 2g of the flame-retardant magnesium hydroxide functional monomer obtained in (1) above, 1mL of acrylamide, 5mL of hydroxyethyl methacrylate, 8mL of butyl acrylate and 9mL of styrene, and ultrasonically disperse for 0.5h to obtain a mixed Monomer solution;

[0048] (3) Dissolve 0.05g ammonium persulfate in 10mL distilled water to prepare initiator solution;

[0049] (4) Add 30mL of distilled water, 1.5g of sodium dodecylbenzene sulfonate, 0.5g of polyvinyl alcohol and 0.5g of sodium bicarbonate into the reac...

Embodiment 3

[0053] (1) At room temperature, weigh 5g of aluminum hydroxide particles and 25mL of absolute ethanol into the reactor, stir mechanically at high speed for 10 minutes, and then ultrasonically disperse for 30 minutes; raise the temperature to 40°C, and weigh 0.5g of vinyl triethoxy Add silane to the reactor, continue mechanical stirring and ultrasonic reaction for 4 hours; filter the reaction product, wash it, vacuum dry it, grind it and keep it sealed for future use;

[0054] (2) Weigh 4g of the flame-retardant aluminum hydroxide functional monomer obtained in (1) above, 0.5mL of methacrylic acid, 5mL of hydroxypropyl acrylate, 9mL of butyl acrylate and 11mL of methyl methacrylate, and ultrasonically disperse for 2 hours. Obtain a mixed monomer solution;

[0055] (3) Dissolve 0.05g ammonium persulfate and 0.01g sodium sulfite in 10mL distilled water to prepare initiator solution;

[0056] (4) 30mL of distilled water, 0.8g of sodium lauryl sulfate, 0.8g of OP-10 and 1g of sodi...

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Abstract

The invention discloses a preparation method of ingrain fireproofing type acrylate emulsion. The preparation method of the ingrain fireproofing type acrylate emulsion comprises the following steps: adding vinyl silane into ethyl alcohol dispersed with metal hydroxide flame retardant particles for reacting, so that vinyl silane is grafted on the surfaces of the metal hydroxide flame retardant particles, namely flame retardant metal hydroxide functional monomers are obtained; and carrying out emulsion polymerization on the flame retardant metal hydroxide functional monomers and polymeric monomers including acrylic acid monomers and / or acrylate monomers, so that the ingrain fireproofing type acrylate emulsion with high solid content, low gel rate and good stability is obtained. The ingrain fireproofing type acrylate emulsion can be used for preparing latex paint with good flame retardant property and mechanical properties.

Description

technical field [0001] The invention relates to a body flame-retardant acrylate emulsion, a preparation method and application thereof, and belongs to the technical field of functional coatings. Background technique [0002] Acrylate emulsions have been widely used as film-forming base materials for water-based coatings and adhesives in recent years due to their excellent weather resistance, film-forming properties, flexibility and environmental protection. However, polyacrylate is a flammable polymer, which is easy to burn in case of fire, which brings huge safety hazards to people's production and life. Therefore, people put forward higher requirements for the flame retardancy of acrylate. At present, the flame retardant modification method of acrylate emulsion is mainly to add flame retardant to modify it. The flame retardant effect is good, but its addition amount is generally large, and the compatibility between the added flame retardant and the emulsion is not good, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F212/08C08F220/56C08F220/28C08F218/08C08F220/32C08F230/08C08K9/06C08K3/22
Inventor 罗建新张春燕李昶红
Owner HUNAN INST OF TECH
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