Preparation method of anti-hydrolysis organosilane surfactant

A technology of surfactant and organosilane, which is applied in the field of preparation of organosilane surfactant, can solve the problem of less product, and achieve the effects of low surface tension, favorable for industrial production and simple preparation method.

Inactive Publication Date: 2013-03-27
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of chemical called an organo-silicate surfactancy agent can be used for various applications such as cleaning or lubricating materials like metal parts during manufacturing processes. It's less expensive than other types of agents but still works well at different pH levels.

Problems solved by technology

This patented describes different types of chemical substances called organosilicons or polysilsulfonates that help prevent damage caused by certain compounds when they come into contact with surfaces like plants. However, even if all those agents were tested carefully beforehand, their effectiveness could decrease due to factors like temperature changes and humidity levels. To overcome this issue, Organopolymer Surface Layer Thickening Resin Disperse Lubricating Water Suspensoid Spreader(CAS No: 806622) was proposed instead of traditional oil based liquid solvent systems containing them. These new materials provide better performance compared to existing ones while reducing environmental concerns associated with handling large amounts of liquids.

Method used

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  • Preparation method of anti-hydrolysis organosilane surfactant
  • Preparation method of anti-hydrolysis organosilane surfactant
  • Preparation method of anti-hydrolysis organosilane surfactant

Examples

Experimental program
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Embodiment 1

[0031] Add 200mL xylene, a small amount of 15-crown ether, N 2 Under protection, add 11.2g of newly treated sodium block, start stirring, raise the temperature to 100°C to melt the sodium and stir quickly to make sodium sand, mix (CH 3 ) 3 SiCl and (CH 3 ) 2 A total of 47g of SiHCl raw material solution was added to the constant pressure dropping funnel. First, a small amount of raw material solution was added dropwise to initiate the reaction. The temperature was controlled at 90°C, and then the reaction solution was continued to be added dropwise. After 24 hours of reaction, it was cooled, suction filtered, and the filtrate was distilled and separated. The fraction boiling in the range 90-105°C was collected as a hydrosilane intermediate. Put the intermediate product in the flask, N 2 Turn on the stirrer under protection, add Karstedt Pt catalyst (calculated as Pt atoms) accounting for 0.001% mass fraction of the total reaction material, and activate at 90°C for 15 minut...

Embodiment 2

[0034] Add 200mL toluene to the flask, N 2 Under protection, add 14g of newly treated sodium block, start stirring, heat up to 100°C to melt the sodium and stir quickly to make sodium sand, mix (CH 3 ) 3 SiCl and CH 3 SiHCl 2 Add a total of 55g of the raw material solution into the constant pressure dropping funnel, first drop a small amount of the raw material solution to initiate the reaction, control the temperature at 90°C, then continue to drop the reaction liquid, react for 13 hours, cool down, filter with suction, and the filtrate is distilled out before 113°C Fractions and residual liquid are used as intermediate products containing hydrosilane. Put the intermediate product in the flask, N 2 Turn on the stirrer under protection, add Karstedt Pt catalyst (calculated as Pt atoms) accounting for 0.0015% mass fraction of the total reaction material, and activate at 90°C for 15 minutes; Polyoxyethylene ether (molecular weight 400) was reacted for 4h. Add activated cla...

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Abstract

The invention discloses a preparation method of an anti-hydrolysis organosilane surfactant, which mainly comprises the following steps of: (1) with (CH3)2SiCl2, (CH3)3SiCl, CH3SiCl2H or (CH3)2SiClH as a raw material, adding a solvent and a catalyst, and performing a stirring reaction at 70-110 DEG C under nitrogen protection; and after the reaction, filtering and performing distillation separation on the filtrate to obtain hydrogen-containing oligosilane; and (2) with the synthesized hydrogen-containing oligosilane and allyl-terminated polyether as raw materials, performing a hydrosilylation reaction at 85-110 DEG C by taking platinum as a catalyst under nitrogen protection; and after the reaction, adding an adsorbent for platinum removal and decoloration, and vacuum-steaming out the unreacted material to obtain the organosilane surfactant. The surfactant disclosed by the invention has relatively good anti-hydrolysis capability in neutral and acid solutions, and can be used as a pesticide adjuvant.

Description

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Claims

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Application Information

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Owner SHANDONG AGRICULTURAL UNIVERSITY
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