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Polyether modified trisiloxane wetting agent and preparation and application methods thereof

A technology of trisiloxane wetting agent and polyether modification, applied in the direction of botanical equipment and methods, applications, biocides, etc., can solve the problems of high temperature resistance and poor alkali resistance, and achieve good alkali resistance and high content Less, the effect of low reaction temperature

Active Publication Date: 2015-01-28
优美特(北京)环境材料科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of polyether modified trisiloxane in high temperature resistance and poor alkali resistance, and provide a polyether modified trisiloxane wetting agent and its preparation and application method

Method used

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  • Polyether modified trisiloxane wetting agent and preparation and application methods thereof
  • Polyether modified trisiloxane wetting agent and preparation and application methods thereof
  • Polyether modified trisiloxane wetting agent and preparation and application methods thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] In a three-necked flask reactor with a volume of 3000mL, add 1000g vinyl-terminated polyether (the repeating unit number m of propoxy group is 0, the repeating unit number n of ethoxy group is 5, and the other end is methyl-terminated) and Porous Al 2 o 3 Material-supported Pt(0) catalyst (the mass of Pt element accounts for 0.005‰ of the total mass of vinyl-terminated polyether and heptamethyltrisiloxane), stirred at 80°C for 30min; then added dropwise at 80°C Add 600g of heptamethylhydrogentrisiloxane for 2 hours. After dropping, keep warm for 2 hours; remove unreacted reaction materials at 60°C and -0.08MPa for 1 hour, and recover porous Al by filtration. 2 o 3 The Pt (0) catalyst of material support obtains 1540g polyether modified trisiloxane wetting agent product, and product is light yellow liquid, and viscosity is 20cSt, and surface tension is 20.8mN / m (gained polyether modified trisiloxane The alkane wetting agent product is prepared with a mass fraction of ...

Embodiment 2

[0043] Add 7kg of vinyl-terminated polyether (the number of repeating units m of propoxy group is 0, the number of repeating units of ethoxy group is 15, and the other end is hydrogen) and porous Al in a glass reactor with a volume of 20L. 2 o 3 Material-supported Pt(0) catalyst (the mass of Pt element accounts for 0.020‰ of the total mass of vinyl-terminated polyether and heptamethyltrisiloxane), stirred at 90°C for 30min; then added dropwise at 90°C 3.5kg of heptamethylhydrogentrisiloxane, the time of dropping is 2h, after dropping, keep warm for 2h; remove the unreacted reaction raw materials at 90℃, -0.08MPa for 1h, filter and recover porous Al 2 o 3 The Pt (0) catalyst of material load, obtains 10.1kg polyether modified trisiloxane wetting agent product, and product is light yellow liquid, and viscosity is 50cSt, and surface tension is 20.5mN / m (gained polyether modified trisiloxane The oxane wetting agent product is prepared into an aqueous solution with a mass fractio...

Embodiment 3

[0045] In a reactor with a diversion barrel with a volume of 1500L, add 750kg of vinyl-terminated polyether (the number of repeating units m of propoxy group is 3, the number of repeating units n of ethoxy group is 7, and the other end is hydrogen ) and porous SiO 2 Material-supported Pt(0) catalyst (the mass of Pt element accounts for 0.015‰ of the total mass of vinyl-terminated polyether and heptamethyltrisiloxane), stirred at 100°C for 40min; then added dropwise at 100°C 300kg of heptamethylhydrogentrisiloxane, the time for dropping is 2h, after dropping, keep warm for 2h; remove the unreacted reaction raw materials at 90°C and -0.09MPa for 1h, cool down to 40°C, filter and recover porous SiO 2 The Pt (0) catalyst of material load obtains 980kg polyether modified trisiloxane wetting agent product, and product is light yellow liquid, and viscosity is 500cSt, and surface tension is 21mN / m (gained polyether modified trisiloxane The wetting agent product is prepared with an aq...

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Abstract

The invention belongs to the technical field of an organic silicon surface wetting agent and particularly relates to a polyether modified trisiloxane wetting agent and preparation and application methods thereof. According to the polyether modified trisiloxane wetting agent disclosed by the invention, a Pt(0) catalyst is loaded by a nano-pore material; and in a reactor, reaction is performed (the reaction time is shorter than or equal to 2h) to obtain the polyether modified trisiloxane wetting agent. The polyether modified trisiloxane wetting agent disclosed by the invention has a viscosity of 20 to 100cSt and surface tension of smaller than or equal to 21mN / m; when the polyether modified trisiloxane wetting agent is used in a water-based paint, the polyether modified trisiloxane wetting agent can still have excellent wettability on a base material after being aged at a high environment temperature of 40 to 70 DEG C under the alkali condition of pH of 10 for a long time of 200h and no shrinkage cavity or spots are generated on a film; and the polyether modified trisiloxane wetting agent disclosed by the invention can be applied to the field of a water-based leather finishing agent (high-temperature coating), a water-based material, wood lacquer, agricultural chemical reagents and the like and has rapid-extension property, wettability and environmental adaptation. The methods disclosed by the invention have the advantages that the production efficiency is high and the production cost is low, the operation is simple, and the methods are non-toxic and environmental-friendly.

Description

technical field [0001] The invention belongs to the technical field of silicone surface wetting agents, in particular to a polyether-modified trisiloxane wetting agent and a preparation and application method thereof. Background technique [0002] Polyether modified trisiloxane belongs to silicone surfactant, its methyl group is adsorbed on the air-water interface with a unique "umbrella" structure, which can reduce the surface tension to about 20mN / m. Polyether-modified trisiloxane can not only reduce the interfacial tension of the oil-water interface, but also wet and expand on the hydrophobic surface. This ability is called "super wettability". [0003] The polyether modified trisiloxane molecule contains both organic groups and silicon elements, so it not only has the characteristics of polysiloxane, such as high temperature resistance, non-toxicity, non-corrosion, weather resistance and physiological inertness, but also has carbon Hydrogen surfactants have the characte...

Claims

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Application Information

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IPC IPC(8): C09D7/12A01N25/30C08G65/336C07F7/08
Inventor 张建森王文忠张俊环钱光磊张小宸冀璐李庆董春辉
Owner 优美特(北京)环境材料科技股份公司
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