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

High conductivity polycarbonate (PC) composite material and preparation method thereof

A technology of polycarbonate and composite materials, which is applied in the field of high-conductivity polycarbonate composite materials and its preparation, can solve problems such as the influence of electrical conductivity, difficulty in uniform dispersion, and reduced mechanical properties of resin materials, so as to achieve good mechanical properties, Excellent electrical conductivity and low warpage

Inactive Publication Date: 2018-08-10
疆合材料科技(苏州)有限公司
View PDF10 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional conductive polymer materials use a large amount of conductive fillers to add to the resin material. However, the compatibility of the conductive filler itself with the resin is not good, and it is difficult to disperse evenly. This will inevitably greatly reduce the mechanical properties of the resin material, thereby limiting the conductivity. Application range of materials
At the same time, the conductive network of traditional conductive composite materials is not perfect, and the resistivity test value of the product often has a large floating range, and the conductivity is easily affected by the environmental conditions of the product.

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

[0057] Preparation of conductive masterbatch:

[0058] S11. Weigh 60 parts of polyphenylene sulfide (PPS) resin, 25 parts of conductive carbon black, 15 parts of carbon nanotubes, 0.4 parts of antioxidant BRUGGOLEN H10, 0.3 parts of antioxidant 412S, 0.8 parts of PE wax;

[0059] S12, mixing each component weighed;

[0060] S13. Send the mixed raw materials into an extruder for melt extrusion and granulation.

[0061] The temperature in the tenth zone of the extruder is 280-310° C., and the screw speed is 450 RPM.

[0062] Preparation of Conductive Composite Materials:

[0063] S21. Weigh 55 parts of PC resin, 30 parts of conductive masterbatch, 10 parts of chopped glass fiber, 4 parts of core-shell structure MBS toughening agent, 0.15 parts of antioxidant 1076, and 0.3 parts of antioxidant 168 , 0.1 part of antioxidant 412S, 0.5 part of polypentetyl stearate (PETS);

[0064] S22, mixing each component weighed;

[0065] S23. Send the mixed raw materials into an extruder ...

Embodiment 2

[0068] Preparation of conductive masterbatch:

[0069] S11. Weigh 60 parts of polyphenylene sulfide (PPS) resin, 25 parts of conductive carbon black, 15 parts of carbon nanotubes, 0.1 parts of antioxidant BRUGGOLEN H10, 0.3 parts of antioxidant 412S, 0.8 parts of PE wax;

[0070] S12, mixing each component weighed;

[0071] S13. Send the mixed raw materials into an extruder for melt extrusion and granulation.

[0072] The temperature in the tenth zone of the extruder is 280-310° C., and the screw speed is 450 RPM.

[0073] Preparation of Conductive Composite Materials:

[0074] S21. Weigh 35 parts of PC resin, 50 parts of conductive masterbatch, 10 parts of chopped glass fiber, 4 parts of core-shell structure MBS toughening agent, 0.15 parts of antioxidant 1076, and 0.3 parts of antioxidant 168 , 0.1 part of antioxidant 412S, 0.5 part of PETS;

[0075] S22, mixing each component weighed;

[0076] S23. Send the mixed raw materials into an extruder for melt extrusion and g...

Embodiment 3

[0079] Preparation of conductive masterbatch:

[0080] S11. Weigh 60 parts of polyphenylene sulfide (PPS) resin, 20 parts of conductive carbon black, 10 parts of carbon nanotubes, 10 parts of graphene, 0.1 parts of antioxidant BRUGGOLEN H10, 0.3 parts of antioxidant Agent 412S, 0.8 parts of PE wax;

[0081] S12, mixing each component weighed;

[0082] S13. Send the mixed raw materials into an extruder for melt extrusion and granulation.

[0083] The temperature in the tenth zone of the extruder is 280-310° C., and the screw speed is 450 RPM.

[0084] Preparation of Conductive Composite Materials:

[0085] S21. Weigh 55 parts of PC resin, 30 parts of conductive masterbatch, 10 parts of chopped glass fiber, 4 parts of core-shell structure MBS toughening agent, 0.15 parts of antioxidant 1076, and 0.3 parts of antioxidant 168 , 0.1 part of antioxidant 412S, 0.5 part of PETS;

[0086] S22, mixing each component weighed;

[0087] S23. Send the mixed raw materials into an extru...

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
melt flow indexaaaaaaaaaa
diameteraaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a high conductivity polycarbonate (PC) composite material and a preparation method thereof. The polycarbonate composite material is prepared from the following components in parts by weight: 40-60 parts of PC resin, 10-30 parts of conductive master batch, 10-30 parts of reinforcing filler, 2-6 parts of toughening agent, 0.08-1.5 parts of first antioxidant and 0.05-3.0 partsof first lubricating agent, wherein the conductive master batch is prepared from the following components in parts by weight: 40-70 parts of thermoplastic resin, 30-50 parts of conductive filler, 0.1-0.6 part of second antioxidant and 0.5-2 parts of second lubricating agent. The PC composite material provided by the invention has very good electrical conductivity, and the volume resistivity of thePC composite material can reach 10<2> omega.m. Furthermore, the addition ratio of the conductive filler material is lower; when the adding amount of the conductive filler is about 10%, the volume resistivity can reach 10<4> omega.m or below, but the composite material can maintain good mechanical properties. In addition, the high conductivity PC composite material also has higher fluidity and lowwarping property, thus being suitable for performing injection molding on large-size workpieces.

Description

technical field [0001] The invention relates to the technical field of polymer material modification, in particular to a high-conductivity polycarbonate composite material and a preparation method thereof. Background technique [0002] Composite conductive polymer materials (also known as conductive polymer composite materials) refer to metal powder, carbon black (CB), carbon nanotubes (CNT), carbon fibers (CF) and other conductive substances added to insulating polymer materials. The obtained composite material is a multi-phase multi-component system with electrical conductivity. Conductive polymer composites can adjust the electrical and mechanical properties by changing the filler material content, size, characteristics and polymer matrix type. The production process is simple, the manufacturing cost is low, and it is easy to mass-produce. It has been widely used in static electricity, electromagnetic wave shielding, microwave absorption, and digital camera photosensitiv...

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): C08L69/00C08L81/02C08L67/02C08L23/06C08L51/04C08K13/04C08K7/14C08K5/134C08K5/526C08K3/04C08J3/22
CPCC08J3/226C08J2369/00C08J2467/02C08J2481/02C08K2201/001C08K2201/011C08L69/00C08L2205/035C08L81/02C08L23/06C08L51/04C08K13/04C08K7/14C08K5/1345C08K5/526C08K3/04C08K3/041C08K3/042C08L67/02C08K7/06
Inventor 周宇马述伟赵国营张素霞
Owner 疆合材料科技(苏州)有限公司
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