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Polyether polyurethane sulfate anionic macromolecular surfactant and preparation method and application thereof

A polyether polyurethane and surfactant technology, applied in textile and papermaking, fiber processing, carbon fiber, etc., can solve the problems of emulsification process influence and limited application scope, and achieve high emulsification efficiency, abundant raw material sources, and easy large-scale production. Effect

Inactive Publication Date: 2012-01-04
SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because its water solubility as a nonionic surfactant is significantly affected by temperature, when the solution temperature is higher than the cloud point temperature, the solution will be in a turbid state, which will affect the emulsification process and limit its application range

Method used

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  • Polyether polyurethane sulfate anionic macromolecular surfactant and preparation method and application thereof
  • Polyether polyurethane sulfate anionic macromolecular surfactant and preparation method and application thereof
  • Polyether polyurethane sulfate anionic macromolecular surfactant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 81.80 g (0.1 mol) of homemade triblock PPG 4 -PEG 8 -PPG 4 (P 4 E. 8 P 4 ) polyether was added into a 500ml four-neck flask, the temperature was raised to 90°C, and residual moisture was removed by vacuuming. Then the temperature was lowered to below 50° C., and 8.71 g (0.05 mol) of toluene diisocyanate (2,4-TDI) was slowly added dropwise under a flowing high-purity nitrogen atmosphere. After the isocyanate component is added dropwise, the reaction system is heated to 60°C and stirred, and the isocyanate functional group content W is measured by sampling once every 20 minutes. NCO titration analysis. When W NCO When approaching half of the initial value, the temperature of the reaction system was raised to 90°C, and the sampling and W NCO titration analysis. at W NCO When it is close to 0, the reaction system continues to heat up to 130°C, and 5.82 grams (0.06mol) of sulfamic acid and 0.53 grams (0.006mol) of catalyzer N, N'-dimethylurea, which are carefully g...

Embodiment 2

[0052] 81.80 g (0.1 mol) of homemade triblock PPG 4 -PEG 8 -PPG 4 (P 4 E. 8 P 4 ) polyether was added into a 500ml four-neck flask, the temperature was raised to 90°C, and the residual moisture was removed by vacuuming. Then the temperature was lowered to below 50° C., and 10.08 g (0.06 mol) of hexamethylene diisocyanate (HDI) was slowly added dropwise under a flowing high-purity nitrogen atmosphere. After the isocyanate component is added dropwise, the reaction system is heated to 60°C and stirred, and the isocyanate functional group content W is measured by sampling once every 20 minutes. NCO titration analysis. When W NCO When approaching half of the initial value, the temperature of the reaction system was raised to 90°C, and the sampling and W NCO titration analysis. at W NCO When it is close to 0, continue to heat up the reaction system to 130°C, and add 7.76 grams (0.08mol) of sulfamic acid and 0.72 grams (0.012mol) of catalyst urea that have been ground and t...

Embodiment 3

[0054] 49.80 g (0.1 mol) of homemade triblock PPG 2 -PEG 6 -PPG 2 (P 2 E. 6 P 2 ) polyether was added into a 500ml four-neck flask, the temperature was raised to 90°C, and the residual moisture was removed by vacuuming. Then the temperature was lowered to below 50° C., and 8.71 g (0.05 mol) of toluene diisocyanate (2,6-TDI) was slowly added dropwise under a flowing high-purity nitrogen atmosphere. After the isocyanate component is added dropwise, the reaction system is heated to 60°C and stirred, and the isocyanate functional group content W is measured by sampling once every 20 minutes. NCO titration analysis. When W NCO When approaching half of the initial value, the temperature of the reaction system was raised to 90°C, and the sampling and W NCO titration analysis. at W NCO When it is close to 0, continue to heat up the reaction system to 130°C, and add 4.85 grams (0.05mol) of sulfamic acid and 0.30 grams (0.005mol) of catalyst urea that have been ground and thor...

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Abstract

The invention provides a polyether polyurethane sulfate anionic macromolecular surfactant and a preparation method and application thereof. The preparation method disclosed by the invention has the advantages that the total percent conversion is higher than 80%, the process is mild and controllable, raw materials can be prepared easily, the cost is low, generated byproducts and industrial three wastes are less. The prepared polyether polyurethane sulfate anionic macromolecular surfactant can be used as an emulsifier for emulsifying bisphenol A type epoxy resin to prepare water-based epoxy resin emulsion, and also can be used as a carbon fiber sizing agent in the manufacture engineering of carbon fiber. Compared with the traditional polyether sulfate anionic macromolecular surfactant, the polyether polyurethane sulfate anionic macromolecular surfactant has the advantage that, due to the introduction of carbamic acid ester groups in the molecular structure of polyether polyurethane sulfate, the abrasive resistance, water tolerance, heat resistance and formed film elasticity of seized carbon fiber can be improved, which is favorable to the preparation of a high-performance fiber reinforced resin based composite material.

Description

technical field [0001] The invention relates to the field of synthetic functional polyurethane and special functional macromolecular surfactants, in particular to a polyether polyurethane sulfate salt, a preparation method and its preparation as an anionic special functional surfactant in a high-performance fiber water-based emulsion sizing agent in the application. Background technique [0002] Anionic surfactants are a class of surfactants that can be ionized in aqueous media and become negatively charged. They are the most traditional, largest output, most diverse and most widely used surfactants. They are used in daily detergents, It is widely used as an important emulsifier formula component in the research and development and production of coatings, adhesives, pesticides, synthetic fiber surface treatment agents, biomedical emulsions and personal care products. Commonly used anionic surfactants contain sulfate ester salt structure (-OSO 3 - m + ) anionic surfactant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/568D06M15/55C08G18/87C08G18/48D06M101/40
Inventor 曹阿民杭传伟
Owner SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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