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

Aqueous conducting anti-corrosive paint containing nano core-shell structure polypyrrole

A nano core-shell, conductive anti-corrosion technology, applied in conductive coatings, anti-corrosion coatings, coatings, etc., can solve the problems of polypyrrole inability to melt, poor mechanical properties, difficult processing and molding, etc., to facilitate market promotion and reduce production costs , the effect of high application value

Inactive Publication Date: 2011-01-12
SHANDONG UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the conductive polypyrrole prepared according to the traditional method is generally a black powder, which makes it difficult to color the coating with polypyrrole as the conductive filler.
In addition, due to the large conjugated π bond in the linear molecular chain, polypyrrole has extremely strong rigidity, polypyrrole can neither melt nor dissolve, which makes it difficult to process and shape, and its mechanical properties are also very poor. If it is made into water-based paint, it will be very unstable and prone to precipitation
[0006] In summary, there are many deficiencies in the prior art, and the preparation of a water-based conductive anti-corrosion coating with high polypyrrole content, good chemical compatibility and high conductivity has become an urgent problem to be solved.

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
  • Aqueous conducting anti-corrosive paint containing nano core-shell structure polypyrrole
  • Aqueous conducting anti-corrosive paint containing nano core-shell structure polypyrrole
  • Aqueous conducting anti-corrosive paint containing nano core-shell structure polypyrrole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Preparation of a water-based conductive anti-corrosion coating containing nano-core-shell polypyrrole

[0036] Proceed as follows:

[0037] (1) Preparation of nano-scale iodine-doped polypyrrole:

[0038] ①Add 200g of distilled water, 10.2g of cationic surfactant cetyltrimethylammonium bromide (CTAB), 6g of co-surfactant n-amyl alcohol into a three-necked flask at room temperature, and magnetically stir to form a surfactant glue bundle solution;

[0039] ② Add 4 g of pyrrole monomer dropwise into the three-necked flask, and continue magnetic stirring to form a micelle solution of surfactant containing pyrrole monomer;

[0040] 3. Add 1.4g of iodine element to the three-necked flask, and continue magnetic stirring;

[0041] ④ Slowly add 20.4g FeCl dropwise to the three-necked flask 3 (dissolved in 40g distilled water), magnetic stirring for 3h, iodine-doped nano-polypyrrole can be obtained, and its transmission electron microscope photo is as follows figu...

Embodiment 2

[0046] Example 2: Preparation of a water-based conductive anti-corrosion coating containing nano-core-shell polypyrrole

[0047] Proceed as follows:

[0048] (1) Preparation of nano-scale iodine-doped polypyrrole:

[0049] ①Add 200g of distilled water, 6.8g of cationic surfactant cetyltrimethylammonium bromide (CTAB), 4g of co-surfactant n-amyl alcohol into a three-necked flask at room temperature, and magnetically stir to form a surfactant glue bundle solution;

[0050] ② Add 2 g of pyrrole monomer dropwise into the three-necked flask, and continue magnetic stirring to form a micelle solution of surfactant containing pyrrole monomer;

[0051] ③ Add 0.6g of iodine element to the three-necked flask, and continue magnetic stirring;

[0052] ④ Slowly add 7.8g FeCl dropwise to the three-necked flask 3 (dissolved in 40 g of distilled water) and magnetically stirred for 3 h to obtain iodine-doped nano-polypyrrole.

[0053] 5. Add 5 g of methyl methacrylate (MMA) to the three-ne...

Embodiment 3

[0057] Example 3: Preparation of a water-based conductive anti-corrosion coating containing nano-core-shell polypyrrole

[0058] Proceed as follows:

[0059] (1) Preparation of nano-scale iodine-doped polypyrrole:

[0060] ①Add 200g of distilled water, 13.6g of cationic surfactant cetyltrimethylammonium bromide (CTAB), 8g of co-surfactant n-amyl alcohol into a three-necked flask at room temperature, and magnetically stir to form a surfactant glue bundle solution;

[0061] ② Add 6g of pyrrole monomer dropwise into the three-necked flask, and continue magnetic stirring to form a micelle solution of surfactant containing pyrrole monomer;

[0062] 3. Add 2.4g of iodine element to the three-necked flask, and continue magnetic stirring;

[0063] ④ Slowly add 37.2g FeCl dropwise to the three-necked flask 3 (dissolved in 40 g of distilled water) and magnetically stirred for 3 h to obtain iodine-doped nano-polypyrrole.

[0064] 5. Add 8.96 g of methyl methacrylate (MMA) to the thr...

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an aqueous conducting anti-corrosive paint containing nano core-shell structure polypyrrole, which comprises nano core-shell structure polypyrrole compound particles and aqueous resin emulsion, wherein the nano core-shell structure polypyrrole accounts for 5.5-25 wt% of aqueous resin emulsion. When in use, the aqueous conducting anti-corrosive paint containing nano core-shell structure polypyrrole is applied or sprayed on the metal surface which is processed by oil removal and anti-corrosive treatment, the coating thickness is controlled at 20-200 mu m, and the coating is cured at room temperature. The nano core-shell polypyrrole compound particles are synthesized by using a micro emulsion method. The method has the advantages of simple experimental apparatus, low energy consumption and easy operation; and the prepared nano particles have uniform and controllable particle size. Compared with the common paint, the aqueous conducting anti-corrosive paint has incomparable advantages and high application value, and is beneficial to market popularization.

Description

technical field [0001] The invention relates to a water-based conductive anti-corrosion coating containing nano-core-shell structure polypyrrole. Background technique [0002] In 1977, Heeger, MacDiarmid, and Hideki Shirakawa discovered that arsenic pentafluoride or iodine-doped polyacetylene films have metallic conductivity, with a conductivity of 103S cm. -1 , this discovery shatters the traditional notion that polymers are generally insulators and raises a series of interesting fundamental scientific questions about the structure and properties of conducting polymers. In addition, conductive polymers have broad application prospects in chemical power supply electrode materials, modified electrodes and enzyme electrodes, electrochromic displays, electrostatic shielding, etc., thus stimulating the research upsurge of conductive polymers worldwide. In 1979, IBM Corporation of the United States used electrochemical oxidative polymerization to prepare a conductivity as high a...

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 Applications(China)
IPC IPC(8): C09D133/00C09D179/04C09D133/12C09D5/24C09D5/08C08G73/06C08F120/14
Inventor 石元昌孙立波刘锋
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