CN106436468A - 一种电磁屏蔽涂布纸 - Google Patents

一种电磁屏蔽涂布纸 Download PDF

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CN106436468A
CN106436468A CN201610988851.0A CN201610988851A CN106436468A CN 106436468 A CN106436468 A CN 106436468A CN 201610988851 A CN201610988851 A CN 201610988851A CN 106436468 A CN106436468 A CN 106436468A
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paper
coating
electromagnetic shielding
parts
coating paper
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张达明
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Wuxi Mingsheng Strong Blower Co Ltd
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Wuxi Mingsheng Strong Blower Co Ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0084—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

本发明公开了一种电磁屏蔽涂布纸，纸张和涂布于纸张上的涂层，所述涂层按重量份包括：FexNi1‑x粉体100份，丙烯酸树脂18‑30份，羧甲基纤维素2‑5份，聚苯胺树脂5‑10份，分散剂0.2‑1份。本发明得到的电磁屏蔽涂布纸，其方阻为100mΩ/口，电磁屏蔽效能大于40db，达到中等屏蔽效果。

Description

一种电磁屏蔽涂布纸
技术领域
本发明涉及电磁屏蔽技术领域，尤其涉及一种电磁屏蔽涂布纸。
背景技术
我们知道，人类一直生活在电磁环境里。电视、微波炉、电脑等已走进千家万户，而由它们产生的极化和磁化也正在包围我们.磁化是电磁辐射的伴生物，它会将人体内的微量元素磁化，血液中的铁元素被磁化后会导致白血病，长期的磁化还会造成胎儿畸形等危害。目前，国内外的电磁屏蔽材料主要采用金属材料(如钢和铜)、透纱棉(棉纱中加入金属丝等，军用屏蔽室往往需要用厚达3cm以上的钢板制造，才有可能达到屏蔽效果，因而民用前景极不理想。
用导电纤维和木浆混合制成导电纸，可以做为敏感集成电路的屏蔽包装，其屏蔽效能一般在30-40dB。有人提出把碳纤维纸贴在玻璃钢表面或塑料表面，用它做成具有电磁屏蔽功能的罩壳，也许更省材料，更能保持罩壳原有机械性能。还可以将导电金属作为功能性填料，采用涂布工艺涂于纸页的表面，使纸页具有电磁屏蔽的功能。
纸张涂布的主要目的是使涂层最大程度地覆盖原纸表面纤维，赋予纸张较好的表面性能、印刷性能及特殊功能。随着近年来涂布纸不断的发展和更新，涂布纸不但可以作为高档印刷纸应用，还可以作为特殊纸种应用在生活或生产中的某些特定方面，例如导电、防腐、屏蔽等等。
发明内容
本发明的目的在于提出一种电磁屏蔽涂布纸，能够使得涂层致密均匀，成膜性好，填料和胶黏剂均有一定渗透，且导电性能和电磁屏蔽性能达到平衡。
为达此目的，本发明采用以下技术方案：
一种电磁屏蔽涂布纸，纸张和涂布于纸张上的涂层，所述涂层按重量份包括：
FexNi1-x粉体 100份
丙烯酸树脂 18-30份
羧甲基纤维素 2-5份
聚苯胺树脂 5-10
分散剂 0.2-1份。
X为0.2或0.5
本发明的所述电磁屏蔽涂布纸的制备方法包括：
(1)按照比例将FexNi1-x粉体、丙烯酸树脂、羧甲基纤维素、聚苯胺树脂和分散剂混合制成固含量为40-55％的导电涂料；
(2)采用50-60g/m2、干燥温度60-70℃、干燥时间2-10min的涂布和干燥工艺制备电磁屏蔽涂布纸。
本发明得到的电磁屏蔽涂布纸，其方阻为100mΩ/口，电磁屏蔽效能大于40db，达到中等屏蔽效果。
具体实施方式
下面通过具体实施方式来进一步说明本发明的技术方案。
实施例1
一种电磁屏蔽涂布纸，纸张和涂布于纸张上的涂层，所述涂层按重量份包括：
FexNi1-x粉体 100份
丙烯酸树脂 18份
羧甲基纤维素 2份
聚苯胺树脂 5
分散剂 0.2份。
实施例2
一种电磁屏蔽涂布纸，纸张和涂布于纸张上的涂层，所述涂层按重量份包括：
FexNi1-x粉体 100份
丙烯酸树脂 30份
羧甲基纤维素 5份
聚苯胺树脂 10
分散剂 1份。
实施例3
一种电磁屏蔽涂布纸，纸张和涂布于纸张上的涂层，所述涂层按重量份包括：
FexNi1-x粉体 100份
丙烯酸树脂 25份
羧甲基纤维素 3份
聚苯胺树脂 8
分散剂 0.5份。
实施例1-3得到的电磁屏蔽涂布纸，其方阻为100mΩ/口，电磁屏蔽效能大于40db，达到中等屏蔽效果。且涂层致密均匀，成膜性好，填料和胶黏剂均有一定渗透，且导电性能和电磁屏蔽性能达到平衡。

Claims (2)

1.一种电磁屏蔽涂布纸，纸张和涂布于纸张上的涂层，所述涂层按重量份包括：
FexNi1-x粉体 100份
丙烯酸树脂 18-30份
羧甲基纤维素 2-5份
聚苯胺树脂 5-10
分散剂 0.2-1份，其中，
X为0.2或0.5。
2.如权利要求1所述电磁屏蔽涂布纸的制备方法，包括：
(1)按照比例将FexNi1-x粉体、丙烯酸树脂、羧甲基纤维素、聚苯胺树脂和分散剂混合制成固含量为40-55％的导电涂料；
(2)采用50-60g/m2、干燥温度60-70℃、干燥时间2-10min的涂布和干燥工艺制备电磁屏蔽涂布纸。
CN201610988851.0A 2016-11-10 2016-11-10 一种电磁屏蔽涂布纸 Pending CN106436468A (zh)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001348787A (ja) * 2000-03-30 2001-12-21 Ad Tech Co Ltd 電磁波遮蔽用壁紙
CN101472455A (zh) * 2007-12-29 2009-07-01 3M创新有限公司 电磁屏蔽衬垫和用于填充电磁屏蔽系统中的间隙的方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001348787A (ja) * 2000-03-30 2001-12-21 Ad Tech Co Ltd 電磁波遮蔽用壁紙
CN101472455A (zh) * 2007-12-29 2009-07-01 3M创新有限公司 电磁屏蔽衬垫和用于填充电磁屏蔽系统中的间隙的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
洪露露: "电磁屏蔽涂布纸的研制", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *

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