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Alkynyl diol ethyl oxide polyether or alkynyl diol propyl oxide polyether co-modified polysiloxane and preparation method thereof

A technology of acetylene glycol propoxide and ethoxide, which is applied in the field of acetylene glycol ethoxide polyether or acetylene glycol propoxide polyether co-modified polysiloxane, and can solve the problem of low surface tension, balanced High surface tension, more foam and other problems, to achieve the effects of low foam/anti-foam performance, strong emulsification performance, and low surface tension

Active Publication Date: 2015-06-10
CHINA RES INST OF DAILY CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For polyether-modified polysiloxane, its existing preparation method, as Chinese patent CN 101434615 B has reported a kind of method for preparing ultra-low surface tension polyether-modified silicone oil and its synthesis process, through allyl polyether The product is obtained by hydrosilylation with methyl hydrogen-containing silicone oil. The invention has ultra-low surface tension, but more foam affects the use
On the other hand, Chinese patent CN 102145267 A reports a method for preparing a multifunctional surfactant based on acetylenic glycol ethoxylate. Its invention, acetylene glycol ethoxylate, has low foam and can effectively reduce the dynamics of the water-based system. Surface tension, but higher equilibrium surface tension
[0003] The invention synthesizes a new type of alkyne with low surface tension and less foam by reacting acetylene glycol ethoxylate or acetylene glycol propoxide, polyether with unsaturated double bond at the end and polysiloxane containing active hydrogen Co-modified polysiloxane with glycol ethoxylate polyether or acetylene glycol propoxylate polyether has not been reported

Method used

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  • Alkynyl diol ethyl oxide polyether or alkynyl diol propyl oxide polyether co-modified polysiloxane and preparation method thereof
  • Alkynyl diol ethyl oxide polyether or alkynyl diol propyl oxide polyether co-modified polysiloxane and preparation method thereof
  • Alkynyl diol ethyl oxide polyether or alkynyl diol propyl oxide polyether co-modified polysiloxane and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First, add 16.58Kg allyl polyether (APEO-7), 1.87Kg butynediol monoethoxy ether and 32.05Kg hydrogen-containing silicone oil (the mass fraction of active hydrogen is 0.52%) into the reaction kettle, and then add Chloroplatinic acid and ruthenium chloride (based on the ratio of the mass of Pt and Ru contained in the catalyst to the total mass of the three raw materials are respectively 50mg / kg and 50mg / kg), using isopropanol as solvent, at a temperature of 130°C condition, N 2 React under protection for 7 hours. The solvent isopropanol and low boiling point components were distilled off to finally obtain an amber transparent viscous liquid product which was butynediol monoethoxy ether polyether co-modified polysiloxane with a viscosity of 566 mPa·s. The surface tension of its aqueous solution was measured with a K-12 surface tensiometer to be 22mN / m. The critical micelle concentration of the aqueous solution is 387mg / L. At the same time, the minimum contact angle of i...

Embodiment 2

[0036] First, add 24.83Kg of methyl-terminated allyl polyether, 7.61Kg of butynediol diethoxy ether and 16.76Kg of hydrogen-containing silicone oil (the mass fraction of active hydrogen is 1.32%) into the reaction kettle, and then add card Karstedt platinum catalyst (20 mg / kg based on the ratio of the mass of Pt contained in the catalyst to the total mass of the three raw materials), using methanol as a solvent, at a temperature of 240 ° C, N 2 Reaction under protection for 16 hours. The solvent methanol and low boiling point components were distilled off to obtain a yellowish brown clear viscous liquid product which was butynediol diethoxy ether polyether co-modified polysiloxane with a viscosity of 279 mPa·s. The surface tension of its aqueous solution was measured with a K-12 surface tensiometer to be 20mN / m. The critical micelle concentration is 203mg / L. At the same time, the minimum contact angle of its aqueous solution on the surface of polytetrafluoroethylene is 20°, ...

Embodiment 3

[0038] First, add 6.47Kg of methyl-terminated allyl polyether, 14.98Kg of butynediol monopropoxy ether and 19.43Kg of hydrogen-containing silicone oil (the mass fraction of active hydrogen is 0.51%) into the reaction kettle, and then add chlorine Platinic acid and ruthenium chloride solution (respectively 80mg / Kg and 80mg / Kg based on the ratio of the Pt and Ru mass contained in the catalyst to the total mass of the three raw materials) were used as catalysts, and isopropanol was used as a solvent at a temperature of At 170°C, N 2 Reaction under protection for 13 hours. The solvent isopropanol and low boiling point components were distilled off to finally obtain an orange-yellow clear viscous liquid product which was butynediol monopropoxy ether polyether co-modified polysiloxane with a viscosity of 367 mPa·s. Structural characterization of the product was carried out by proton nuclear magnetic resonance spectrometer and infrared spectrometer (see attached figure 1 ,2), by an...

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Abstract

The invention relates to alkynyl diol ethyl oxide polyether or alkynyl diol propyl oxide polyether co-modified polysiloxane, wherein the molecular structure of the alkynyl diol ethyl oxide polyether or alkynyl diol propyl oxide polyether co-modified polysiloxane is shown in the specification. The alkynyl diol ethyl oxide polyether or alkynyl diol propyl oxide polyether co-modified polysiloxane provided by the invention has the advantages of low surface tension, efficient wetting power, low foam / foam inhibition performance and stronger emulsifying property.

Description

technical field [0001] The invention belongs to an acetylene glycol ethoxylate polyether or acetylene glycol propoxide polyether co-modified polysiloxane and a preparation method. Background technique [0002] As we all know, polyether-modified polysiloxane is usually synthesized by hydrosilylation reaction of polyether with unsaturated double bonds at the end and polysiloxane with active hydrogen under the action of a catalyst. For polyether-modified polysiloxane, its existing preparation method, as Chinese patent CN 101434615 B has reported a kind of method for preparing ultra-low surface tension polyether-modified silicone oil and its synthesis process, through allyl polyether The product is obtained by hydrosilylation with methyl hydrogen-containing silicone oil, and its invention has ultra-low surface tension, but more foam affects its use. On the other hand, Chinese patent CN 102145267 A reports a method for preparing a multifunctional surfactant based on acetylenic g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/46C08G77/38C08G81/00
Inventor 王国永李祥杜志平王万绪李萍台秀梅王天壮
Owner CHINA RES INST OF DAILY CHEM IND
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