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Non-silicon defoamer

A non-silicon defoamer and defoamer technology, applied in the field of fine chemical preparations, non-silicon defoamers, and non-silicon defoamers containing acrylate polymers, can solve problems such as precipitation residues and environmental damage, and achieve Improve defoaming ability, improve dispersing ability, and improve the effect of antifoaming performance

Active Publication Date: 2018-11-13
JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emergence of this type of defoamer can solve the problem of environmental damage and silicon precipitation residues, but there is still a lot of room for improvement in the defoaming and antifoaming performance of the defoamer prepared by the current technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (1) Mix 80g isooctyl acrylate with 100g hydroxyethyl acrylate, 80g unsaturated end-capped polyether B1 and 4.8g benzoyl peroxide, and stir to completely dissolve benzoyl peroxide to form mixture a1;

[0065] (2) 50 g of olefin C1 and 0.8 g of benzoyl peroxide are stirred and mixed to completely dissolve benzoyl peroxide to form mixture b1;

[0066] (3) Stir and mix the remaining 20 g of isooctyl acrylate and 0.8 g of benzoyl peroxide to completely dissolve the benzoyl peroxide to form a mixture c1;

[0067] (4) Add 0.8 g of benzoyl peroxide to 662 g of diluent PPG1000 while stirring, heat up to 80°C after the addition of benzoyl peroxide, and keep it warm for 10 minutes to completely dissolve the benzoyl peroxide to form a mixture d1 ;

[0068] (5) Under the cooling of circulating cooling water, keep the temperature of the mixture d1 at 80°C, add the mixture a1 dropwise to the mixture d1 while stirring, and drop it within 3 hours to form the mixture e1;

[0069] (6) A...

Embodiment 2

[0074] (1) Mix 320g of isooctyl acrylate with 200g of hydroxyethyl methacrylate, 10g of unsaturated capped polyether B2 and 2.4g of benzoyl peroxide, and stir to completely dissolve benzoyl peroxide to form a mixture a2 ;

[0075] (2) 40g olefin C2 and 0.4g benzoyl peroxide are stirred and mixed to completely dissolve benzoyl peroxide to form mixture b2;

[0076](3) The remaining 80 g of isooctyl acrylate and 0.4 g of benzoyl peroxide were stirred and mixed to completely dissolve the benzoyl peroxide to form a mixture c2;

[0077] (4) Add 0.4 g of benzoyl peroxide to 346 g of diluent PPG600 while stirring. After the addition of benzoyl peroxide is completed, the temperature is raised to 100 ° C, and the temperature is kept for 10 minutes to completely dissolve the benzoyl peroxide to form a mixture d2 ;

[0078] (5) Under the cooling of circulating cooling water, keep the temperature of the mixture d2 at 100°C, add the mixture a2 dropwise to the mixture d2 while stirring, an...

Embodiment 3

[0084] (1) Mix 240g of isooctyl methacrylate with 100g of hydroxyethyl acrylate, 50g of unsaturated capped polyether B3 and 3.6g of benzoyl peroxide, and stir to completely dissolve benzoyl peroxide to form a mixture a3 ;

[0085] (2) 80g olefin C3 and 0.6g benzoyl peroxide are stirred and mixed to completely dissolve benzoyl peroxide to form mixture b3;

[0086] (3) The remaining 60 g of isooctyl methacrylate and 0.6 g of benzoyl peroxide were stirred and mixed to completely dissolve the benzoyl peroxide to form a mixture c3;

[0087] (4) Add 0.6 g of benzoyl peroxide to 464 g of diluent PPG2000 while stirring, heat up to 60°C after the addition of benzoyl peroxide, and keep it warm for 20 minutes to completely dissolve the benzoyl peroxide to form a mixture d3 ;

[0088] (5) Under the cooling of circulating cooling water, keep the temperature of the mixture d3 at 60°C, add the mixture a3 dropwise to the mixture d3 while stirring, and drop it within 1 hour to form the mixtu...

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Abstract

The invention belongs to the technical field of fine chemical industry and discloses a non-silicon defoamer which comprises acrylate polymer, organic solvent carrier, hydrophobic particle and defoaming aid. The acrylate polymer is prepared frommonomer-1, monomer-2, unsaturated terminated polyether, hydrocarbon, dilutent and initiator. The invention further discloses a preparation method of the non-silicon defoamer. The invention further discloses application of the non-silicon defoamer in defoaming and inhibiting foam in a system rich in an anionic surfactant. Acrylate polymer is taken as a main active matter, so that the defoamer has excellent foam eliminating and inhibiting performance. By dropwise adding monomer by steps, defoaming performance of the acrylate polymer is improved; unsaturated terminated polyester is utilized for modifying, so that hydrophilicity of the acrylate polymer is improved, and momentary defoaming ability of the acrylate polymer is further improved; foam inhibiting performance of the defoamer is improved by modifying through olefin with 6-22 carbon atoms.

Description

technical field [0001] The invention belongs to the technical field of fine chemical preparations, relates to a fine chemical preparation, in particular to a non-silicon defoamer, more precisely, a non-silicon defoamer containing an acrylate polymer, and a non-silicon defoamer in rich Applications in systems containing anionic surfactants such as papermaking, water treatment, textiles and other industries. Background technique [0002] Defoamers are compositions used in industrial production to control foam in various processes. In industrial production, especially in papermaking, water treatment, textile and other industries, due to the rich water and a large amount of chemical additives added in the system, and accompanied by a large amount of mechanical energy, such as stirring, washing and thickening processes, etc., it is extremely difficult May cause foam formation. Liquid media (such as water), chemical additives (such as surfactants), air sources and mechanical ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04C08F283/06C08F220/18C08F220/28C08F210/14
CPCB01D19/0404B01D19/0409C08F283/065C08F220/20C08F220/1808C08F220/281B01D19/04C08F210/14C08F283/06C08L51/08
Inventor 张振刘杨曹添
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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