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Composite materials comprising conductive nano-fillers

A technology of conductive nano fillers and compositions, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, shielding materials, nanotechnology, etc., can solve expensive problems and achieve the effect of high conductivity and dielectric constant

Active Publication Date: 2017-10-17
CYTEC TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Additionally, there are various commercially available CNT products (e.g. CNT / epoxy masterbatches) in which the CNTs are pre-dispersed in a resin precursor system, which are claimed to achieve optimal dispersion in epoxy or epoxy blend resin systems degree, but quite expensive

Method used

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  • Composite materials comprising conductive nano-fillers
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  • Composite materials comprising conductive nano-fillers

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[0161] Measurement methods

[0162] Compositions of the invention can be characterized using the methods described below.

[0163] Conductivity

[0164] The electrical resistance (as a ratio of applied voltage to current) was recorded in the bridging method using a Burster-Resistomat 2316 milliohmmeter to determine the conductivity of cured plaques and composites. Contact is established between the two sample surfaces using a Kelvin test probe. All measurements were performed at RT and standard humidity conditions according to the 4-wire measurement method.

[0165] Resin system conductivity was measured on cured resin coupons taken from smooth uniform plaques. Characterization was performed on square coupons (side length = 40 mm ± 0.1 mm) approximately 3 mm thick. Two electrodes were established on opposing coupon surfaces using commercially available silver paste.

[0166] The composite z-direction conductivity was measured on coupons taken from defect-free panels m...

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Abstract

The invention relates to composite materials comprising conductive nano-fillers. A process for the production of a composition comprising one or more conductive nano- filler(s), one or more polyarylethersulphone thermoplastic polymer(s) (A), one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor, wherein said process comprises mixing or dispersing a first composition comprising one or more conductive nano-filler(s) and one or more polyarylethersulphone thermoplastic polymer(s) (A) with or into one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor.

Description

[0001] This application is a divisional application of an invention patent application with an application date of December 19, 2012, application number 201280057263.5, and the title "composite material containing conductive nanofillers". technical field [0002] The present invention relates to a dispersion of conductive nanofillers, in particular carbon-based conductive nanofillers, in a polymer matrix, in particular epoxy resin systems, and composites made therefrom, and methods for their manufacture. The present invention also relates to an improved method of dispersing the nanofillers in polymer matrices and composite structures by using a soluble thermoplastic polymer to deliver the nanofillers into the polymer matrix. The invention also relates to a composite material and structure having improved electrical and electromagnetic properties. Background technique [0003] Composite materials comprising polymer resins and fillers are well-known structural materials for th...

Claims

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Application Information

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IPC IPC(8): C08K3/04C08K7/24C08L81/06C08L63/00H01B1/22
CPCC08K3/04C08K7/24C08L63/00H01B1/22C08K2201/011C08L81/06C08K3/041Y10S977/753Y10S977/847Y10S977/932C08K9/08H01Q17/00H05K9/0079B82Y30/00B82Y40/00C08K2201/001C08K2201/01
Inventor 卡梅隆·卢卡·瑞斯塔西亚菲奥伦佐·伦齐埃米利亚诺·弗拉罗尼纳塔莉·丹妮丝·乔丹马克·爱德华·哈里曼
Owner CYTEC TECH CORP
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