Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method for fluid of increasing viscoelasticity of anionic/cationic surfactant through polymer

A technology of surfactant and viscoelasticity, which is applied in the field of preparation of polymer-enhanced surfactant viscoelastic fluid, can solve the problem of small threshold resistance to external force, achieve good stability, enhance viscoelasticity, and enhance resistance to shear dilution effect of ability

Active Publication Date: 2014-11-26
SHANDONG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the resistance threshold value of the existing salt-free anion / cation surfactant vesicle system is relatively small, and to provide a method for preparing polymer-enhanced anion / cation surfactant viscoelastic fluid

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for fluid of increasing viscoelasticity of anionic/cationic surfactant through polymer
  • Preparation method for fluid of increasing viscoelasticity of anionic/cationic surfactant through polymer
  • Preparation method for fluid of increasing viscoelasticity of anionic/cationic surfactant through polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Use Br with a concentration of 0.1 mol / L - The quaternary ammonium salt cationic surfactant-tetradecyltrimethylammonium hydroxide aqueous solution, which is the counter ion, passes through the exchange column equipped with anion exchanger, and is exchanged into OH by anion exchange method. - It is the aqueous solution of quaternary ammonium base type cationic surfactant of counter ion;

[0039] (2) Use the prepared standard solution of potassium hydrogen phthalate, use phenolphthalein as indicator, and take some of the obtained in step (1) as OH - Calibrate the aqueous solution of quaternary ammonium base type cationic surfactant as the counter ion to obtain its accurate concentration;

[0040] (3) Take the OH obtained in step (1) - The quaternary ammonium base cationic surfactant aqueous solution that is the counter ion is added fatty acid-lauric acid in an equimolar amount to the surfactant according to the measured concentration, and after heating and shaking t...

Embodiment 2

[0045] The steps are the same as in Example 1, except that the added polymer is replaced by Pluronic F68, and the added amount is 1.0 mg / mL. The results of steady shear and oscillatory shear of the product are shown in Figure 4 , Figure 5 with Image 6 middle.

Embodiment 3

[0047] The steps are the same as in Example 2, except that the amount of polymer Pluronic F68 in the target sample is increased to 3.0 mg / mL. The results of its product oscillatory shear are shown in Figure 7 middle.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method for a fluid of increasing viscoelasticity of anionic / cationic surfactant through polymer. The method comprises the following steps: exchanging quaternary ammonium salt cationic surfactant water solution with countra-ion Br- by an anion exchange method to become quaternary ammonium salt cationic surfactant water solution with countra-ion OH-; then adding fatty acid with equal molar weight with the surfactant; dissolving and drying to obtain solid positive / positive ion pairs; adding appropriate deionized water till dissolving completely in constant temperature; adding polyoxyethylene-polypropylene oxide-polyoxyethylene copolymer, vibrating till solid dissolves completely, and placing in a calorstat to allow the system to reach phase equilibria; mixing nonionic triblock copolymer PEO-PPO-PEO into a close packing vesica system to increase the viscoelasticity of a mixing system; and allowing vesicae to be closely packed in lower surfactant concentration, without generating sediment in higher concentration.

Description

technical field [0001] The invention relates to a preparation method of a polymer-enhanced surfactant viscoelastic fluid, which belongs to the technical field of new materials. Background technique [0002] Surfactant molecules can form ordered aggregates such as liquid crystals, micelles, and vesicles in aqueous solution. These supramolecular structures with various shapes, dimensions and scales endow the system with rich rheological behavior. Typically, if the aggregates are intertwined to form a three-dimensional space network, or close to each other to form a close-packed structure, the system often exhibits considerable viscoelasticity. These viscoelastic fluids have important application value in many fields such as oil field and daily chemical industry. [0003] In actual use, due to production cost considerations, it is always hoped that a viscoelastic fluid with excellent performance can be obtained at a lower surfactant concentration. As an important form of ord...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/52B01F17/42B01F17/18C09K23/52C09K23/18C09K23/42
Inventor 郝京诚李洪光李明智王靖慧魏鑫
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com