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

Novel macromolecule resistance-reducing agent and preparation method thereof

A drag-reducing agent and macromolecule technology, which is applied in the field of macromolecule new-type drag-reducing agent and its preparation, can solve problems such as the easy loss of drag-reducing agent, the stability of resistance-reducing agent, and the corrosion of steel grounding bodies, and achieve a good effect of reducing resistance , Long service life, less corrosive effect

Inactive Publication Date: 2015-10-07
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these resistance-reducing agents have a certain resistance-reducing effect in a short period of time after they are applied, they cause serious corrosion to the steel grounding body, and the resistance-reducing effect will decline rapidly as time goes by.
[0005] (2) Stability issues with resistance reduction
The manufacturer pursues the short-term resistance reduction effect, and adds a large amount of inorganic salts to the resistance reduction agent. Although it can effectively reduce the grounding resistance of the grounding device in the short term, the resistance reduction effect is unstable, because in this type of resistance reduction agent The contained inorganic salts will lose the resistance-reducing effect of the resistance reducing agent with the rapid loss of rainwater, so that the grounding resistance of the grounding device will rebound quickly
[0006] (3) Environmental pollution caused by drag-reducing agents
[0007] Therefore, it is necessary to invent a macromolecular drag reducing agent, which can improve the shortcomings of existing drag reducing agents, such as easy loss and large corrosion.

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
  • Novel macromolecule resistance-reducing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 The method for preparing a macromolecular drag reducing agent is as follows.

[0030] (1) Weigh 20g of sodium bentonite into a beaker, then add 100mL of deionized water, stir at 80°C for 3 hours, then add 5g of completely dissolved cetyltrimethylammonium bromide, and continue After stirring for 12 hours, the resulting solution was filtered, and the filtered product was washed with deionized water until there was no foam, and dried in a vacuum oven to obtain an organically modified bentonite.

[0031] (2) Add a certain amount of vacuum-dried organic bentonite to a beaker, add 100ml of water, stir at 60°C for 3 hours at high speed to form a uniform suspension, and then cool down to room temperature. Then add 10.5g of doping agent sodium p-toluenesulfonate, then drop into 5g of pyrrole monomer, stir and disperse for about 1 hour, slowly drop into 150ml of 1mol / L ferric chloride aqueous solution with dropping funnel, and continue the reaction 6 h. Let stand to c...

Embodiment 2

[0032] Example 2 The method for preparing a macromolecular drag reducing agent is as follows.

[0033] (1) Weigh 20g of sodium bentonite into a beaker, then add 100mL of deionized water, stir at 80°C for 3 hours, then add 6g of completely dissolved cetyltrimethylammonium bromide, and continue After stirring for 12 hours, the resulting solution was filtered, and the filtered product was washed with deionized water until there was no foam, and dried in a vacuum oven to obtain an organically modified bentonite.

[0034] (2) Add a certain amount of vacuum-dried organic bentonite to a beaker, add 100ml of water, stir at 60°C for 3 hours at high speed to form a uniform suspension, and then cool down to room temperature. Then add 8g of doping agent sodium p-toluenesulfonate, then drop in 6g of pyrrole monomer, stir and disperse for about 1h, then slowly drop in 175ml of 1mol / L ferric chloride aqueous solution with a dropping funnel, and continue the reaction for 6 h. Let st...

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

PropertyMeasurementUnit
Resistivityaaaaaaaaaa
Resistivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a novel macromolecule resistance-reducing agent and a preparation method thereof. The resistance-reducing agent comprises the following components in percentage by weight: 50% to 60% of leading agent, 5% to 10% of modifying agent, 20% to 30% of conducting material, and 5% to 10% of auxiliaries, the leading agent is sodium bentonite, the modifying agent is hexadecyl trimethyl ammonium bromide, the conducting material is polypyrrole, and the auxiliaries are sodium p-toluenesulfonate and a ferric chloride solution. The novel macromolecule resistance-reducing agent provided by the invention adopts a specific formula, through the combined effect of the leading agent and the conducting material, can overcome to a large extent the defect that the resistance-reducing agent is easily lost with rainwater, and has a longer service life; is small in corrosivity to a base metal, and basically has no corrosion to an iron-based metal; and has a good resistance-reducing effect, can reach electrical resistivity of 1.49[ohm]*m, is pollution-free to environment, and is non-toxic.

Description

technical field [0001] The invention relates to a novel macromolecular drag reducing agent and a preparation method thereof. Background technique [0002] Grounding is an important means to ensure the safety of electrical, communication, microelectronics and other equipment, buildings and personal safety. In order to ensure the normal operation of the power system and the safety of people and equipment, the electrical equipment in power plants and substations must be reliably grounded and have a low grounding resistance value. It is usually difficult to extend the ground body and expand the ground grid to meet such high requirements. Grounding resistance reducing agent is a kind of auxiliary material, which has been widely used in grounding engineering. Its performance of resistance reduction and corrosion inhibition is stable and the effect is good. It has been written into national standards and related industry standards. measure. [0003] At present, there are the fo...

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): H01B1/12C09K17/40H01B13/00H01R4/66
Inventor 朱志平田野肖剑峰柳森
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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