Preparation method of thermosetting acrylic resin binder

A technology of acrylic resin and binder, applied in the direction of adhesive, binder type, graft polymer binder, etc., can solve the problems of glass wool application field limitation and limited glass wool application scope.

Active Publication Date: 2012-09-26
CHENGDU HANJIANG NEW BUILDING MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the improvement of people's living standards and the continuous expansion of glass wool products in the application fields of building walls, automobiles, furniture, decoration, etc., the requirements for the environmental protection of glass wool insulation materials are getting higher and higher. People hope that the formaldehyde in glass wool The lower the content, the better, even without formaldehyde, and most of the glass wool on the market now uses phenolic resin as the main material of thermosetting resin, which makes glass wool widely used in building walls, automobiles, furniture, and decorative lights. Large restrictions limit the broader application range of glass wool

Method used

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  • Preparation method of thermosetting acrylic resin binder
  • Preparation method of thermosetting acrylic resin binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The raw materials are: 16kg of acrylic acid, 30kg of methyl acrylate, 0.5kg of isopropanol, 1.0kg of sodium hypophosphite, 3.5kg of hydrogen peroxide, 0.8kg of sodium lauryl sulfate, 1.5kg of KH570, 0.5 kg of methyl silicone oil kg, Kaison CG0.3kg, deionized water 80kg.

[0036] First add 0.5kg of sodium hypophosphite and 0.5kg of isopropanol, add 2.0kg of deionized water, then use a vacuum pump to pump into the reaction kettle, add 70kg of deionized water, and start to heat up.

[0037] Then pump 16kg of acrylic acid and 30kg of methyl acrylate into the elevated tank and stir for 10-90 minutes, and set aside;

[0038] After dissolving 3.5kg of hydrogen peroxide, 0.8kg of sodium lauryl sulfate, 0.5kg of methyl silicone oil, 0.3kg of Kayson CG and 10kg of deionized water, it is pumped into another elevated tank for use.

[0039] When the temperature of the reaction kettle rises to 50-95°C, start to add the mixed solution of acrylic monomer and polyester intermediate of ...

Embodiment 2

[0045] The raw materials are: 26kg of acrylic acid, 20kg of hydroxyethyl acrylate, 1.0kg of isopropanol, 1.0kg of potassium persulfate, 1.0kg of sodium lauryl sulfate, 1.5kg of KH560, 0.5kg of silicone oil, 1,2 benzoiso Thiazolone-3-one 0.2kg, deionized water 80KG.

[0046] First add 1.0kg of isopropanol and 2.0KG of deionized water, then pump it into the reactor with a vacuum pump, then add 70kg of deionized water, turn on the mixer of the reactor, and start to heat up.

[0047] Then pump 26kg of acrylic acid and 20kg of hydroxyethyl acrylate into the head tank and stir for 10-90 minutes, then set aside;

[0048] After dissolving 1.0kg of potassium persulfate, 1.0kg of sodium lauryl sulfate, 0.5kg of hydroxyl silicone oil, 0.2kg of 1,2 benzisothiazolinone-3-one and 10kg of deionized water, pump it into Another high level slot is ready for use.

[0049] When the temperature of the reaction kettle rises to 50-90°C, start to add the mixed solution of acrylic monomer and polyes...

Embodiment 3

[0055] The raw materials are: 28kg of polyacrylic acid, 16kg of propyl acrylate, 0.5kg of isopropanol, 1.0kg of sodium hypophosphite, 0.7KG of sodium persulfate, 0.8kg of sodium dodecyl sulfate, 1.5kg of KH550, 0.5 hydroxy silicone oil KG, Kaisong CG 0.3kg, deionized water 91kg.

[0056] First add 2.0kg of sodium hypophosphite, 0.5kg of isopropanol, and 2.0kg of deionized water, then pump them into the reaction kettle with a vacuum pump, then add 75kg of deionized water, and start to heat up.

[0057] Then pump 28kg of polyacrylic acid and 14kg of propyl acrylate into the elevated tank and stir for 10-60 minutes, then set aside;

[0058] After dissolving 0.7kg of sodium persulfate, 0.8kg of sodium lauryl sulfate, 0.5kg of hydroxyl silicone oil, 0.3kg of Kayson CG and 16kg of deionized water, pump it into another elevated tank for use.

[0059] When the temperature of the reaction kettle rises to 50-90°C, start to add the mixed solution of acrylic monomer and polyester interme...

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PUM

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Abstract

The invention discloses a preparation method of a thermosetting acrylic resin binder which does not contain formaldehyde. The preparation method comprises the following steps: carrying out graft copolymerization reaction on a acrylic acid type compound and an acrylic acid polyester compound under the action of an initiator, a chain transfer agent and a retarder so as to obtain a thermosetting acrylic resin; subsequently adding a softening agent, a curing agent, an emulsifying agent and a mildew preventive; stirring uniformly and filtering so as to prepare the thermosetting acrylic resin binder used for glass wool. The binder prepared by using the method does not contain free formaldehyde and free phenol, so the product does not release free aldehyde during the application process and is an environment-friendly green binder.

Description

technical field [0001] The invention relates to the technical field of acrylic resin binders, in particular to a method for preparing a thermosetting acrylic resin binder for glass wool. Background technique [0002] Centrifugal glass wool is made by melting crushed glass, limestone, feldspar, quartz sand, borax, soda ash and other mineral (chemical) substances in a kiln, then fibrating the molten glass with a centrifugal blowing process, spraying thermosetting resin adhesive Cotton silk-like material made of binder, and then heat-cured and further processed, can be made into a series of products with multiple uses. It has the characteristics of non-flammable, non-toxic, corrosion-resistant, small bulk density, low thermal conductivity, strong chemical stability, With many advantages such as low moisture absorption rate and good hydrophobicity, it is currently recognized as a thermal insulation, heat insulation, and sound-absorbing material with excellent performance, and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/08C09J11/06C08F283/01C08F283/02
Inventor 顾春生
Owner CHENGDU HANJIANG NEW BUILDING MATERIAL
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