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

Water-based PTC nanocarbon electrothermal coating, and preparation method thereof

A technology of electrothermal coating and nano-carbon, which is applied in the direction of polyester coating, polyacetal coating, epoxy resin coating, etc., to achieve broad application prospects and uniform heating effect

Inactive Publication Date: 2018-11-30
中国科学院苏州纳米技术与纳米仿生研究所南昌研究院
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far there are few reports on water-based PTC, especially with the general trend of water-based inks, water-based electrothermal inks with PTC functions have become an urgent need

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The composition and weight percentage of water-based PTC nano-carbon electrothermal coating are:

[0029] Carbon nanotubes 5%

[0030] Polyethylene micropowder (particle size 1 micron) 5%

[0031] Sodium dodecylbenzenesulfonate dispersant 2%

[0032] BYK333 leveling agent 0.5%

[0033] BYK191 wetting agent 0.5%

[0034] Other additives 1%

[0035] Water-based polyurethane resin 20%

[0036] water balance.

[0037] First, add polyethylene micropowder into the absolute ethanol solution of the hydrophilic finishing agent, the concentration of the hydrophilic finishing agent is 1%, stir at 200rpm for 2 hours, then dry it, remove the absolute ethanol by volatilization, and obtain a hydrophilic treated polymer Micronized. At the same time, mix carbon nanotubes, sodium dodecylbenzenesulfonate dispersant, and BYK191 wetting agent evenly under stirring according to the ratio, prepare a uniformly dispersed dispersion by grinding process, and obtain carbon nanotubes after s...

Embodiment 2

[0039] The composition and weight percentage of water-based PTC nano-carbon electrothermal coating are:

[0040] Graphene 10%

[0041] Polypropylene micropowder (particle size 0.5 micron) 5%

[0042] Triton X100 dispersant 2%

[0043] BYK331 leveling agent 0.5%

[0044] BYK190 wetting agent 0.5%

[0045] Other additives 1%

[0046] Water-based acrylic resin 20%

[0047] water balance.

[0048] First, add the polypropylene micropowder into the absolute ethanol solution of the hydrophilic finishing agent, the concentration of the hydrophilic finishing agent is 1%, and stir at 200rpm for 2 hours, then dry it, and volatilize the absolute ethanol to obtain a hydrophilic treated polymer Micronized. At the same time, the graphene, Triton X100 dispersant, and BYK190 wetting agent were mixed evenly under stirring according to the ratio, and a uniformly dispersed dispersion was prepared by grinding, and the graphene dispersion was obtained after standing for defoaming. Next, the...

Embodiment 3

[0050] The composition and weight percentage of water-based PTC nano-carbon electrothermal coating are:

[0051] Carbon nanotubes 5%

[0052] Conductive carbon black 5%

[0053] Nylon micropowder (particle size 1 micron) 5%

[0054] Polyvinylpyrrolidone K30 Dispersant 2%

[0055]BYK378 leveling agent 0.5%

[0056] BYK180 wetting agent 0.5%

[0057] Other additives 1%

[0058] Waterborne Alkyd 20%

[0059] water balance.

[0060] First, add the nylon micropowder into the absolute ethanol solution of the hydrophilic finishing agent, the concentration of the hydrophilic finishing agent is 1%, stir at 200rpm for 2 hours, then dry it, remove the absolute ethanol by volatilization, and obtain the hydrophilic treated polymer micropowder . At the same time, mix carbon nanotubes, conductive carbon black, polyvinylpyrrolidone K30 dispersant, and BYK180 wetting agent evenly under stirring according to the ratio, prepare a uniformly dispersed dispersion by grinding process, and ob...

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
Surface resistanceaaaaaaaaaa
Surface resistanceaaaaaaaaaa
Surface resistanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses a water-based PTC nanocarbon electrothermal coating, and a preparation method thereof. The water-based PTC nanocarbon electrothermal coating is composed of a conductive carbonmaterial, a polymer micro powder, an auxiliary agent, an aqueous bonding resin, and water; wherein the polymer micro powder is crystallization type thermoplastic polymer powder. The preparation methodcomprises following steps: polymer micro powder is subjected to hydrophilization treatment, high speed shearing is adopted to obtain a stable uniform resin dispersion slurry in the bonding resin system, and nanocarbon conductive slurry processed through grinding dispersion is mixed with the auxiliary agents, and mixing and defoaming are carried out so as to obtain a coating finished product. According to the preparation method, crystallization-softening conversion of the crystallization type thermoplastic polymer in thermal circulation is adopted to drive the change of a nanocarbon conductivenetwork, so that the coating internal resistance is changed, positive temperature resistance (PTC) effect is achieved, regulation and control on electrothermal coating frequency is realized, and safeand high efficiency electrical heating coating is obtained. The water-based PTC nanocarbon electrothermal coating is green, is friendly to the environment, is safe and reliable, is high in efficiency, and is capable of saving energy.

Description

technical field [0001] The invention relates to a water-based electrothermal ink, in particular to a water-based PTC nano-carbon electrothermal coating and a preparation method thereof. Background technique [0002] The PTC (Positive Temperature Coefficient) effect, that is, the positive temperature coefficient effect, means that the resistance of this material will increase with the increase of temperature. The PTC effect can effectively protect the heating element in the electric heating element. As the temperature rises, the resistance increases and the power decreases, which can realize self-adaptive regulation of the temperature. It is a safe and reliable overheating protection method. With the continuous emergence of electric heating products in recent years, the planar heating film using coating and printing technology has become a new generation of high-efficiency electric heating film due to its characteristics of uniform heating, high heat energy utilization rate, ...

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): C09D175/04C09D123/06C09D7/61C09D7/63C09D7/65C09D133/04C09D133/12C09D167/08C09D167/02C09D163/00C09D167/00C09D159/00C09D123/12C09D11/03C09D11/104C09D11/107C09D11/108C09D11/102C09D11/105
CPCC08K2201/011C08K2201/014C08L2205/03C09D7/61C09D7/63C09D7/65C09D7/70C09D11/03C09D11/102C09D11/104C09D11/105C09D11/107C09D11/108C09D133/04C09D163/00C09D167/00C09D167/08C09D175/04C08L23/06C08K13/02C08K3/041C08K5/42C08L23/12C08K3/042C08L39/06C08L77/00C08K3/04C08L67/02C08L71/02C08K7/06C08L59/00C08L1/28
Inventor 陈名海张永毅李清文张亦驰
Owner 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院
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