Synthesis and application of hyperbranched surfactant

A surfactant and hyperbranched technology, which is applied in the preparation of organic compounds, organic chemistry, chemical instruments and methods, etc., can solve the problems of less active groups and small surfactant emulsification

Inactive Publication Date: 2018-08-10
UNIV OF JINAN
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anionic surfactants play a major role in the asphalt emulsification process because of their anionic active group, which is a hydrophilic group. An anionic surfactant molecule often c

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
  • Synthesis and application of hyperbranched surfactant
  • Synthesis and application of hyperbranched surfactant
  • Synthesis and application of hyperbranched surfactant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0024] Accurately weigh 3.0021.g (0.03mol) of succinic anhydride with an electronic balance, place it in a beaker with a capacity of 100 mL, and add 30 mL of N,N-dimethylacetamide (DMAc) into the beaker to fully dissolve it. Add 3.9957 g (0.03 mol) of diisopropanolamine (moisture-proof) to a three-necked flask with a capacity of 500 mL. The three-necked flask is stirred with magnetic force, filled with nitrogen and exhausted. Put the fully dissolved succinic anhydride in a constant pressure dropper with a capacity of 100 mL, then place the constant pressure dropper on a three-necked flask, open the cock, and complete the dropwise addition in about half an hour, then react for 8 hours to obtain AB 2 monomer.

[0025] to AB 2 Add 1.3417 g (0.01 mol) nuclear molecule trimethylolpropane to the monomer to fully dissolve it, and then add 0.067 g of catalyst (p-toluenesulfonic acid) into the three-necked flask. Put the three-neck flask in an oil bath to heat, install a water separa...

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 the technical field of research on the emulsifying property of coal pitch, particularly relates to a hyperbranched surfactant and also relates to a preparation method of the hyperbranched surfactant. The preparation method comprises the following steps: synthesizing a hydroxyl-terminated hyperbranched polymer, wherein the hydroxyl-terminated hyperbranched polymer is synthesized by the steps of performing reaction on succinic anhydride and diisopropanolamine which serve as raw materials to generate an AB2 monomer, and performing reaction on the AB2 monomer and trimethylolpropane according to a certain molar ratio to generate the hydroxyl-terminated hyperbranched polymer; and modifying the hydroxyl-terminated hyperbranched polymer, introducing sulfonic group at the tail end of the hydroxyl-terminated hyperbranched polymer to synthesize the hyperbranched surfactant. Compared with the traditional emulsifier, the hyperbranched surfactant has a large amount of activegroups and has high surface activity, high compatibility and excellent emulsifying property. When the hyperbranched surfactant is applied to research on the emulsifying property of the coal pitch, the coal pitch can be emulsified effectively and the obtained coal pitch emulsion has high stability.

Description

technical field [0001] The invention relates to the field of research on the emulsification performance of coal tar pitch, in particular to the synthesis and application of a hyperbranched surfactant. Background technique [0002] Asphalt is a mixture of various polymers with good physical and chemical properties, including: strong adhesion, strong aging resistance, good waterproof performance and many other advantages, because of its good performance is widely used in waterproof materials, Road repairs, etc. Emulsified asphalt is a form of use of asphalt. Compared with other forms of use, emulsified asphalt can save 40-50% of energy, and the construction method is simple, which can effectively save the cost of use and reduce the environmental impact caused by heating asphalt. Pollution. [0003] The key to the preparation of emulsified asphalt is to choose a suitable surfactant, among which anionic surfactants are widely used because of their wide variety and low price. ...

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
IPC IPC(8): C08G83/00C08L95/00C08J3/02C07C303/32C07C309/17C07C231/02C07C231/12C07C233/18B01F17/08B01F17/36B01F17/52C09K23/08C09K23/36C09K23/52
CPCC07C231/02C07C231/12C07C233/18C07C303/32C07C309/17C08G83/006C08J3/02C08J2395/00C09K23/00
Inventor 寿崇琦王德卫王艳丽
Owner UNIV OF JINAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap