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

Method for preparing a conductive resin composition

A conductive resin and composition technology, applied in the field of preparation of conductive resin composition, can solve the problem of reducing the impact resistance, elongation, wear resistance and mechanical properties of thermoplastic resins, product commercialization restrictions, and inability to achieve electrical conductivity, etc. problems, to achieve the effect of preventing the reduction of mechanical properties and good electrical conductivity

Active Publication Date: 2017-08-29
KOREA KUMHO PETROCHEMICAL CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in order to derive a meaningful result of imparting electrical conductivity, it is necessary to add about 10 to 20% by weight or more of conductive filler relative to the thermoplastic resin, which results in lowering of the thermoplastic resin such as impact resistance, elongation, and abrasion resistance. inherent mechanical properties
[0007] In particular, in fields where both electrical conductivity and mechanical properties of thermoplastic resins are required, for example, in fields such as automotive fuel tanks or fuel hoses, product commercialization is limited due to the problem of maintaining a balance between the two
[0008] Furthermore, when it is necessary to impart conductivity to a high-viscosity thermoplastic resin, there is a problem that sufficient conductivity cannot be achieved by adding a conductive filler due to the characteristics of the thermoplastic resin.

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
  • Method for preparing a conductive resin composition
  • Method for preparing a conductive resin composition
  • Method for preparing a conductive resin composition

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] figure 1 A method for preparing a conductive resin composition according to an aspect of the present invention is schematically shown. refer to figure 1 , The preparation method of the conductive resin composition according to one aspect of the present invention may include: step (a), preparing a masterbatch by extruding carbon nanotubes and a first olefin polymer resin; and step (b), mixing the masterbatch and second olefin polymer resin.

[0033] The conductive resin composition can basically consist of a polymer resin having a certain level of mechanical properties and moldability, and a conductive material that can impart conductivity to the polymer resin, such as metals and other inorganic substances. In order to prepare the above-mentioned conductive resin composition, an accompanying process for mixing the polymer resin and the conductive material is required.

[0034] In order to improve the conductivity of the existing conductive resin composition, a techniq...

Embodiment 1

[0068] Put multi-walled carbon nanotubes (MWCNT) into the side feeder of the twin-screw extruder, and put polyethylene (HDPE, melt index 5.0g / 10min, ASTMD 1238) into the main hopper at a speed of 25kg / hr, Melt-kneading was then carried out under the conditions of a kneading speed of 200 rpm and a processing temperature of 230° C., thereby preparing a masterbatch having a carbon nanotube content of 10% by weight.

[0069] The prepared masterbatch and different types of polyethylene (HDPE, melt index 0.3g / 10min, ASTM D1238) were put into the twin-screw extruder at the same time, and the kneading speed was 200rpm and the processing temperature was 250°C. It was melt-kneaded to prepare a resin composition having a carbon nanotube content of 6% by weight.

Embodiment 2

[0071] Except that the content of carbon nanotubes contained in the masterbatch was adjusted to 10% by weight, and the content of carbon nanotubes contained in the resin composition was adjusted to 5% by weight, the rest were the same as in Example 1. The resin composition was prepared by the method.

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
Apparent densityaaaaaaaaaa
Melt indexaaaaaaaaaa
Melt indexaaaaaaaaaa
Login to View More

Abstract

The present invention provides a method for preparing a conductive resin composition. According to one aspect of the present invention, a masterbatch comprising a high content of a conductive filler is prepared by mixing a conductive filler and a first olefin polymer resin. The first olefin polymer resin is mixed with the same or different kinds of the second olefin polymer resin, so that the mechanical properties of the olefin polymer resin can be prevented from being lowered and good electrical conductivity can be realized.

Description

technical field [0001] The present invention relates to a method for preparing a conductive resin composition, and in more detail, relates to a method for preparing a conductive resin composition capable of achieving a balanced balance between conductivity and mechanical properties by alleviating the tradeoff between them. Background technique [0002] Thermoplastic resins are plastics that soften when heated and become plastic when cooled. The above-mentioned thermoplastic resins have excellent processability and moldability, so they are widely used in various household products, office automation equipment, electrical and electronic products, automotive parts, etc. [0003] Also, attempts to use the above-mentioned thermoplastic resins as high value-added materials by adding special properties according to the types and characteristics of products made using the above-mentioned thermoplastic resins continue. [0004] In particular, when a thermoplastic resin is used in 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
IPC IPC(8): C08L23/06C08L23/08C08K7/24C08J3/22B29C47/92B29C47/00B29C48/92
CPCB29C48/0011B29C48/022B29C48/92B29C2948/9258B29K2023/065C08J3/226C08J2323/06C08J2423/06C08K2201/001C08K2201/011C08L23/06C08L2203/18C08L2205/025C08L2205/03C08L2207/062C08K7/24C08L23/0853
Inventor 吴东勋金起弘金东焕
Owner KOREA KUMHO PETROCHEMICAL CO LTD
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