白丝美女被狂躁免费视频网站,500av导航大全精品,yw.193.cnc爆乳尤物未满,97se亚洲综合色区,аⅴ天堂中文在线网官网

Composite material with EMI shielding properties and process to produce it

專(zhuān)利號(hào)
US11889671B2
公開(kāi)日期
2024-01-30
申請(qǐng)人
TOTALENERGIES ONETECH; CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS); UNIVERSITé CLAUDE BERNARD LYON 1 (UCBL)（FR Courbevoie FR Paris FR Villeurbanne）
發(fā)明人
Olivier Lhost; Yves Trolez; Anatoli Serghei; Hubert Lecocq; Philippe Cassagnau
IPC分類(lèi)
H05K9/00; C08J3/20; C08K5/09; C08K5/20; C08K9/02
技術(shù)領(lǐng)域
wt,resin,composite,fibres,at,mi2,from,min,shielding,polymer
地域： Courbevoie

摘要

The disclosure provides for a composite material suitable for use as EMI shielding material, remarkable in that it comprises a component A being a polymer resin being at least one amorphous polymer resin and/or at least one semi-crystalline polymer resin selected from polyethylene resin and/or polypropylene resin; from 15.0 to 60.0 wt. % of component B being at least one metal-coated particle based on the total weight of the composite material; and from 0.5 to 5.0 wt. % of component C being one or more dispersants based on the total weight of the composite material; wherein one or more dispersants are selected from fatty acids, fatty acid derivatives, ethylene bis stearamide, functionalized waxes, maleic anhydride-grafted polymers and any mixture thereof; wherein the blend of components A, B and C shows a density ranging from 0.8 to 2.0 g/cc. A process to produce such composite material is also described as well as an EMI shield article made from such composite material and the use of such composite material in an EMO shield article.

說(shuō)明書(shū)

The natural fibres can be plant fibres and/or animal fibres; with preference, the natural fibres are selected from abaca fibres, bamboo fibres, banana fibres, coir fibres, coconut husk fibres, cotton fibres, flax fibres, henequen fibres, hemp fibres, hop fibres, jute fibres, palm fibres, ramie fibres, sisal fibres, vine branch fibres, miscanthus fibres, cellulose fibres, wood fibres and/or cork fibres. For example, the natural fibres are or comprise sisal fibres.

For example, the metal-coated particles are or comprise metal-coated fibres wherein fibres have an average length of at least 100 μm and/or an average diameter of at least 5 μm.

For example, the at least one metal-coated particle is or comprises metal-coated fibres wherein the metal-coated fibres have an average length of at least 100 μm, preferably of at least 150 μm, such as an average length ranging from 100 μm to 500 μm, for example, ranging from 150 to 400 μm or from 160 to 300 μm.

For example, the at least one metal-coated particle is or comprises metal-coated fibres wherein the metal-coated fibres have an average diameter of at least 5 μm; preferably at least 10 μm; such as an average diameter ranging from 5 to 50 μm, for example, from 10 to 40 μm or from 12 to 30 μm.

For example, the metal of the metal-coated particles is selected from silver, copper, gold, aluminium, tungsten, zinc, cobalt, nickel, iron, titanium, platinum, or any mixture thereof; with preference, from silver, copper, gold, aluminium, tungsten, zinc, cobalt, nickel, iron; more preferably, the metal is silver.

For example, the metal-coated particles comprise from 1 to 50 wt. % of metal based on the total weight of the metal-coated particles, preferably from 5 to 30 wt. % or from 6 to 25 wt. %.

權(quán)利要求

1
微信群二維碼
意見(jiàn)反饋