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Electrically dissipative polymer composition comprising conductive carbon powder emanating from lignin, a method for the manufacturing thereof and use thereof

A technology of conductive carbon and composition, applied in conductive adhesives, electrical components, adhesive additives, etc., can solve the problems of reducing the mechanical strength and ductility of the compound and the addition level

Inactive Publication Date: 2017-02-22
STORA ENSO OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage is that the mechanical strength and ductility of the compound decrease at these addition levels

Method used

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  • Electrically dissipative polymer composition comprising conductive carbon powder emanating from lignin, a method for the manufacturing thereof and use thereof
  • Electrically dissipative polymer composition comprising conductive carbon powder emanating from lignin, a method for the manufacturing thereof and use thereof
  • Electrically dissipative polymer composition comprising conductive carbon powder emanating from lignin, a method for the manufacturing thereof and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0064] Using a laboratory twin-screw extruder (DSM Xplore micromixer) with a single capillary tube, a compound containing 88w% softwood kraft lignin, 7w% phthalic anhydride and 5w% DMSO (97% purity, Sigma-Aldrich ) blends to melt-spun (melt-spun) fibers. The resulting lignin-containing compound was in the form of filaments with a diameter of 150 μm.

Embodiment 2

[0066] The mixture of Example 1 was extruded with a laboratory twin-screw extruder (KEDSE 20 / 40" from Brabender GmbH & CO.KG) using a multifilament die with 62 capillaries. The resulting lignin-containing compound had multifilament In the form of bundles, the diameter of individual filaments is 72 μm.

Embodiment 3

[0068] A mixture comprising 90w% softwood lignin and 10% PEG 400 (polyethylene glycol from Sigma-Aldrich with a molecular weight of 400 Da) was prepared.

[0069] The mixture was extruded on a laboratory twin-screw extruder using a die with 62 capillaries. The resulting lignin-containing compound was in the form of multifilament bundles with individual filament diameters of 90 μm.

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Abstract

The present invention relates to abase polymer material composition comprising a conductive carbon powder, a method for the manufacturing thereof and use thereof.

Description

[0001] field of invention [0002] The present invention relates to compositions comprising lignin-derived conductive carbon powder and a matrix polymer material. Uses thereof are also disclosed. Additionally, methods of preparing the compositions are disclosed. Background technique [0003] Conventional polymers, resins, and most adhesive materials are electrical insulators and tend to build up static electricity. The main applications of conductive thermosets are protection against electromagnetic interference (EMI) and electrostatic discharge (ESD), e.g. for packaging sensitive materials (electrical compounds, chemicals), automotive parts (bumper bars), computers and mobile phones Housings and piping for sensitive fluids, PC-housing, floor coatings, etc. [0004] Conductive resins, adhesives, and thermoset-like coatings are prepared by mixing conductive materials (metal powder, conductive carbon black, ground or chopped (chopped) carbon fibers) to one of the matrix mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/04H05K9/00D01F9/17
CPCC08K3/04C08K2201/001C09J9/02C09J11/04D01F9/17H05K9/0083
Inventor N.加罗夫S.沃尔特
Owner STORA ENSO OYJ