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Preparation method of flame-retardant core-shell-type acrylic resin

A core-shell type, acrylic technology, used in coatings, textiles, papermaking, fiber treatment, etc., can solve the problems of poor flame retardancy, achieve good compatibility, low price, and improve the effect of thermal stickiness and cold brittleness

Active Publication Date: 2013-01-16
北京世纪蓝箭防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a method for preparing a flame-retardant core-shell type acrylic resin, by modifying the acrylic resin to improve its flame retardancy, so as to solve the problem of poor flame retardancy of the current acrylic resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] (1) Add ionic water 50g to the three bottle, sodium emulsifier dulate sodium sodium sodium sodium, 0.33g and fatty alcohol polyoxyethylene ether (the model of fattyol polyoxyl ether is OS-15, non-ionic type, purchased on it in it, purchased in it inHai'an Petrochemical Factory in Jiangsu Province, the same below) 0.17g, 0.3g of methyl acrylic acid, raised the reaction temperature to 40 ° C, stirred 15 minutes, added A monomer, and emulsified 30min.When the temperature rises to 70 ° C to flow back, it starts to add 0.2g of potassium sulfate when the temperature is 75 ° C, the drop of time is 1h, the insulation reaction is 3h, and the drip is 1g of methyl methalotate.Layer emulsion;

[0025] A monomer and its dosage: A monomer is composed of mixed with 2.5g of acrylics of liblide, methane 4g of methacrylate, and 2.5g of acrylic ethyl acetate;

[0026] (2) Add B -mortal and potassium sulfate 0.3g to the nuclear layer emulsion at the same time, add 1H, 75 ° C thermal insulation...

example 2

[0029] (1) Add 70g of exfoliating water to the three bottle, sodium emulsifier dulate sodium sodium sodium 1.2g and fatty alcohol polyoethylene ether 0.6g, and methyl acrylic 3.0g, increase the reaction temperature to 40 ° C, stir 15min, and stir 15 minutes.Add A monomer and emulsify 45min.When the temperature rises to 70 ° C to flow back, it starts to add 0.4g of ammonium sulfate when the temperature is 75 ° C, the drip time is 3h, the insulation reaction is 5h, and the dihydrodoline is 3g of dihydroate.It

[0030] A monomer and its dosage: A monomer is composed of hybrid of acrylite 8g, methyl methampitrite 6 g, and acrylic ethyl.

[0031] (2) Add B monomer and ammonium sulfate 0.5g to the nuclear layer emulsion at the same time.Hydroxyl propylene triathhyl acrylic 1.0g, thermal insulation response time is 2h, cooling to 50 ° C, 0.2g of sodium emulsion dulate sulfate with 0.1g of fatty alcohol polyoethylene ether to three bottle, stirring time30 minutes, ammonia water tone pH 8,...

example 3

[0034] (1) Add 60g of exfoliating water to the three bottle, 0.8g of sodium sodium sodium sulfate sodium sodium sodium sodium and fatty alcohol polyethylene ether 0.4g, and 1.7g of methyl acrylic acid.Add A monomer and emulsify 35min.When the temperature rises to 70 ° C to flow back, it starts to add 0.3g of ammonium sulfate when the temperature is 75 ° C, the drop time is 2h, the insulation response is 4h, and 2g of the two methalharine of the triangles of the triangles, Get the nuclear layer of emulsion;

[0035] A monomer and its dosage: A monomer consists of mixed composition of 7g of acrylics, methyl methacrylate 5g and acrylic ethyl.

[0036] (2) Drop a of 0.4g of B monomers and ammonium sulfate at the same time to the nuclear layer emulsion, 2h of dripping time, 80 ° C thermal insulation reaction time of 2h, 15g of dripping calcium -based bulk soil dispersing solution, 2h thermal insulation reactions, and then plus three plus three.0.75 g, the insulation reaction time of 1....

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Abstract

The invention relates to a preparation method of flame-retardant core-shell-type acrylic resin, which comprises the following steps of: adding deionized water, emulsifying agent, methacrylic acid and monomers A for emulsification, starting to drop initiator when temperature reaches 75DEG C, keeping dropping time to be 1-3h, preserving heat for reaction for 3-5h, dropping ester compounds and keeping reaction time to be 1-3h to obtain core-layer emulsion; and simultaneously adding monomers B and initiator into the core-layer emulsion, keeping dropping time to be 1-3h, preserving heat at 75-85DEG C for reaction for 2h, dropping bentonite dispersion liquid with mass percent being 20 percent, preserving heat for reaction for 1-3h, dropping cross-linking agent, preserving heat for reaction for 1-2h, decreasing temperature to 50DEG C, adding emulsifying agent into a reaction system, keeping reaction time to be 30min, and adding ammonia water to regulate pH (potential of hydrogen) to 7-8 to obtain the flame-retardant core-shell-type acrylic resin. The obtained acrylic resin has the advantages that not only can the defect of hot sticking and cold shortness of the traditional acrylic resin be improved, but also the flame retardation of the acrylic resin can be improved.

Description

Technical field [0001] The present invention involves the preparation method of acrylic resin used in a leather coating process, and specially involves the preparation method of flame retardant nuclear shell -type acrylic resin. Background technique [0002] The comprehensive performance of leather products is good, and is widely used in the interior decoration of the building and the manufacture of aircraft, car interior decoration and office furniture.As a very important process in the titles, the coating can not only make up for the lack of performance of the leather use, but also improve the value of use, and meet the diversity of consumers. [0003] Acrylic resin is currently widely used in leather coating agents. It has the advantages of flexible film flexibility, elasticity, coating light resistance, aging resistance, humidity resistance, and low cost.However, the linear structured acrylic resin coating agent is a thermoplastic material, which is prone to "hot sticky and c...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F220/58C08F220/28C08F222/20C08F2/44C08F2/30C08F2/26C08F4/30C08K3/34C09D133/08D06M15/263
Inventor 段宝荣王全杰
Owner 北京世纪蓝箭防水材料有限公司
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