CN107446428A - 一种用于HVOF制备Fe基非晶涂层的封孔剂 - Google Patents

一种用于HVOF制备Fe基非晶涂层的封孔剂 Download PDF

Info

Publication number
CN107446428A
CN107446428A CN201710649533.6A CN201710649533A CN107446428A CN 107446428 A CN107446428 A CN 107446428A CN 201710649533 A CN201710649533 A CN 201710649533A CN 107446428 A CN107446428 A CN 107446428A
Authority
CN
China
Prior art keywords
sealing agent
hole sealing
parts
hole
prepared
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710649533.6A
Other languages
English (en)
Other versions
CN107446428B (zh
Inventor
聂贵茂
钟菁
王善林
胡文龙
鲁煌
黄诚
林凯明
聂江林
章磊
黄东方
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGXI POWER EQUIPMENT GENERAL FACTORY
Original Assignee
JIANGXI POWER EQUIPMENT GENERAL FACTORY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGXI POWER EQUIPMENT GENERAL FACTORY filed Critical JIANGXI POWER EQUIPMENT GENERAL FACTORY
Priority to CN201710649533.6A priority Critical patent/CN107446428B/zh
Publication of CN107446428A publication Critical patent/CN107446428A/zh
Application granted granted Critical
Publication of CN107446428B publication Critical patent/CN107446428B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/18—Homopolymers or copolymers of tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Sealing Material Composition (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

一种用于HVOF制备Fe基非晶涂层的封孔剂，由四氟乙烯、无水乙醇、纳米级Al2O3、云母填料、分散剂和成膜助剂制备而成。其制备方法步骤如下：（1）将50份聚四氟乙烯与无水乙醇按体积比1:2混合后，加入25份纳米级Al2O3，超声分散均匀；（2）在超声分散的混合物中，加入10份云母填料、5份分散剂及5份成膜助剂，再加入适量无水乙醇溶剂调节黏度；（3）将上一步的物料一起置于高速分散机中，分散均匀后过滤，密封静置，即制备出所需的封孔剂。本发明利用该封孔方法有效地解决了孔隙率及晶化问题。

Description

一种用于HVOF制备Fe基非晶涂层的封孔剂
技术领域
本发明涉及一种用于HVOF制备Fe基非晶涂层的封孔剂，属非晶材料应用技术领域。
背景技术
铁基非晶合金制备成涂层能够拓展铁基非晶合金的应用，但是涂层的微观结构会影响涂层性能。由于封孔处理技术具有应用范围广、操作简便、成本低的优点，成为降低涂层孔隙率最常用的方法，从而改善涂层抗腐蚀能力。封孔处理是指采用刷子或设备等使封孔剂浸入孔隙，填充到孔隙中，在填充孔隙强化内部的同时，使表面也变得光滑，多余的封孔剂变成涂层。因此封孔剂必须具有较低的粘度和良好的渗透性能，以及良好的化学稳定性和在所处的环境下良好的耐腐蚀性能。目前大多数采用的封孔处理材料、工艺对于非晶涂层而言，由于温度过高容易引起晶化，降低涂层性能。因此，本发明一种用于HVOF制备Fe基非晶涂层的封孔剂可以有效的解决以上问题，并且成本低廉，操作简便，维护方便。
发明内容
本发明的目的是，为了解决现有铁基非晶合金制备成涂层存在涂层孔隙率的问题，本发明提出一种用于HVOF制备Fe基非晶涂层的封孔剂。
本发明的技术方案如下：一种用于HVOF制备Fe基非晶涂层的封孔剂，包括四氟乙烯、无水乙醇、纳米级Al2O3、云母填料、分散剂和成膜助剂。其制备方法步骤如下：
（1）将50份聚四氟乙烯与无水乙醇按体积比1:2混合后，加入25份纳米级Al2O3，超声分散均匀；
（2）在超声分散的混合物中，加入10份云母填料、5份分散剂及5份成膜助剂，再加入适量无水乙醇溶剂调节黏度；
（3）将上一步的物料一起置于高速分散机中，分散均匀后过滤，密封静置，即制备出所需的封孔剂。
所述分散剂为聚丙烯酸钠。
封孔处理方法的步骤为：
（1）封孔前，将涂层试样预处理，超声清洗保证涂层表面清洁、无污迹；
（2）在封孔剂中加入适量固化剂，将待封孔涂层浸入该封孔剂中，超声提拉浸渍20min后，使封孔剂充分渗入到涂层的孔隙中；
（3）将试样置于室温干燥12h，然后置于沸水加热60min；
（4）再使用封孔剂对涂层表面进行涂覆，随后放入真空炉中升温到300℃，进行30min的固化处理。
本发明的有益效果是，本发明封孔剂采用聚四氟乙烯被称“塑料王”，耐腐蚀，不溶于强酸、强碱和有机溶剂，耐高温，长期使用温度200~260℃。本发明采用的Al2O3经沸水加热形成Al2O3·H2O，体积增加而达到封孔效应；云母粉是一种层状矿物填料（硅酸盐），具有良好的耐高温、耐磨、耐酸碱腐蚀、绝缘性及附着力强等特性，是一种优异的添加剂。本发明采用的分散剂能防止填料粒子之间相互聚集，与树脂有适当的相容性。本发明在制备方法中固化温度低于涂层玻璃转化温度（450℃）。本发明利用该封孔方法有效地解决了孔隙率及晶化问题。
附图说明
图1为本发明封孔剂制备流程图；
图2（a）为本实施例铁基非晶合金涂层封孔前表面SEM图；
图2（b）为本实施例铁基非晶合金涂层封孔后表面SEM图；
图3（a）为本实施例铁基非晶合金涂层封孔前截面SEM图；
图3（b）为本实施例铁基非晶合金涂层封孔后截面SEM图；
图4为本发明的铁基非晶合金涂层封孔前后的塔菲尔曲线。
具体实施方式
本发明具体实施方式如图1所示。
本实施例是这样来实现的，将50份聚四氟乙烯与无水乙醇按体积比1:2混合后加入25份纳米级Al2O3，超声分散均匀，加入10份云母填料、5份分散剂（聚丙烯酸钠）及5份成膜助剂，再加入适量无水乙醇溶剂调节黏度，随后一起置于高速分散机中，分散均匀后过滤，密封静置，即制备出所需的封孔剂。
封孔前，将涂层试样预处理，超声清洗保证涂层表面清洁、无污迹，然后在封孔剂中加入适量固化剂，将待封孔涂层浸入该封孔剂中，超声提拉浸渍20min后，使封孔剂充分渗入到涂层的孔隙中，再将试样置于室温干燥12h，然后置于沸水加热60min，再使用封孔剂对涂层表面进行涂覆，随后放入真空炉中升温到300℃，进行30min的固化处理
封孔处理后采用扫描电子显微镜SEM对涂层形貌进行观察，可以看出，封孔前涂层表面上存在较多未熔颗粒及孔洞，而涂层封孔后涂层表面较为平滑、致密，没有明显的颗粒感，如图2所示。涂层截面有较多、较大的孔洞，而涂层封孔后涂层孔洞被封孔剂填充，涂层上方明显覆盖着一层云片状的封孔剂，如图3所示。采用电化学工作站对涂层进行耐腐蚀性能测试，涂层在封孔前的腐蚀电流为7.13×10-6A.cm-2；而封孔后涂层腐蚀电流为8.63×10- 7A.cm-2，降低了一个数量级，表明其耐腐蚀性能优于封孔前，如图4所示。

Claims (3)

1.一种用于HVOF制备Fe基非晶涂层的封孔剂，其特征在于，所述封孔剂由四氟乙烯、无水乙醇、纳米级Al2O3、云母填料、分散剂和成膜助剂制备而成；其制备方法步骤如下：
（1）将50份聚四氟乙烯与无水乙醇按体积比1:2混合后，加入25份纳米级Al2O3，超声分散均匀；
（2）在超声分散的混合物中，加入10份云母填料、5份分散剂及5份成膜助剂，再加入适量无水乙醇溶剂调节黏度；
（3）将上一步的物料一起置于高速分散机中，分散均匀后过滤，密封静置，即制备出所需的封孔剂。
2.根据权利要求1所述的一种用于HVOF制备Fe基非晶涂层的封孔剂，其特征在于，所述分散剂为聚丙烯酸钠。
3.根据权利要求1所述的一种用于HVOF制备Fe基非晶涂层的封孔剂，其特征在于，所述封孔剂封孔处理方法的步骤为：
（1）封孔前，将涂层试样预处理，超声清洗保证涂层表面清洁、无污迹；
（2）在封孔剂中加入适量固化剂，将待封孔涂层浸入该封孔剂中，超声提拉浸渍20min后，使封孔剂充分渗入到涂层的孔隙中；
（3）将试样置于室温干燥12h，然后置于沸水加热60min；
（4）再使用封孔剂对涂层表面进行涂覆，随后放入真空炉中升温到300℃，进行30min的固化处理。
CN201710649533.6A 2017-08-02 2017-08-02 一种用于HVOF制备Fe基非晶涂层的封孔剂 Expired - Fee Related CN107446428B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710649533.6A CN107446428B (zh) 2017-08-02 2017-08-02 一种用于HVOF制备Fe基非晶涂层的封孔剂

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710649533.6A CN107446428B (zh) 2017-08-02 2017-08-02 一种用于HVOF制备Fe基非晶涂层的封孔剂

Publications (2)

Publication Number Publication Date
CN107446428A true CN107446428A (zh) 2017-12-08
CN107446428B CN107446428B (zh) 2019-11-29

Family

ID=60489337

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710649533.6A Expired - Fee Related CN107446428B (zh) 2017-08-02 2017-08-02 一种用于HVOF制备Fe基非晶涂层的封孔剂

Country Status (1)

Country Link
CN (1) CN107446428B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875997A (zh) * 2020-07-29 2020-11-03 济南东方结晶器有限公司 提高镀铬层耐磨及耐腐蚀的微凝灰岩聚合物封孔涂覆剂

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1931795A (zh) * 2006-09-07 2007-03-21 武汉理工大学 一种封孔防潮防腐复合涂层材料及其制备
CN101654380A (zh) * 2009-09-08 2010-02-24 武汉理工大学 无机-有机复合封孔涂层
CN102732866A (zh) * 2012-06-08 2012-10-17 汕头大学 一种热喷涂陶瓷涂层表面封孔方法
CN102796983A (zh) * 2011-05-26 2012-11-28 中国科学院金属研究所 一种超音速火焰喷涂铁基非晶涂层的封孔剂及其应用

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1931795A (zh) * 2006-09-07 2007-03-21 武汉理工大学 一种封孔防潮防腐复合涂层材料及其制备
CN101654380A (zh) * 2009-09-08 2010-02-24 武汉理工大学 无机-有机复合封孔涂层
CN102796983A (zh) * 2011-05-26 2012-11-28 中国科学院金属研究所 一种超音速火焰喷涂铁基非晶涂层的封孔剂及其应用
CN102732866A (zh) * 2012-06-08 2012-10-17 汕头大学 一种热喷涂陶瓷涂层表面封孔方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875997A (zh) * 2020-07-29 2020-11-03 济南东方结晶器有限公司 提高镀铬层耐磨及耐腐蚀的微凝灰岩聚合物封孔涂覆剂

Also Published As

Publication number Publication date
CN107446428B (zh) 2019-11-29

Similar Documents

Publication Publication Date Title
CN102977700B (zh) 一种全面改善架空导线性能的涂料
CN109486192A (zh) 一种自流平高导热耐高温导热硅脂及其制备方法
CN103400638B (zh) 一种耐电晕槽绝缘材料及其制备方法
CN112063262B (zh) 一种环氧基非线性电导涂层及其制备工艺
CN106497330A (zh) 一种石墨烯改性环氧树脂涂料及其制备方法
CN103275565B (zh) 一种用于外墙热反射隔热保温防水乳胶涂料
CN107129743A (zh) 一种变压器用耐热防电晕漆包线漆及其制备方法
CN107739534A (zh) 一种醇基无机复合涂层及其制备方法
CN107779085A (zh) 一种石墨烯水性电热膜涂料及其制备方法
CN105219023A (zh) 一种热固性复合材料的制备方法
CN107759818A (zh) 一种超滑聚四氟乙烯多孔表面的制备方法
CN107446428A (zh) 一种用于HVOF制备Fe基非晶涂层的封孔剂
CN106633639A (zh) 一种热浸塑钢质线缆保护管道及其制备方法
CN104387730B (zh) 输电线路电缆接头用绝缘材料、密封工具及密封方法
CN108806831A (zh) 一种电缆用的导电涂料以及石墨烯导电层
CN105655123B (zh) 使用制造耐高温线圈的装置的制造耐高温线圈的工艺
CN101986520A (zh) 制冷电机引出线密封方法
CN106543836A (zh) 一种水性防腐涂料
CN105720390A (zh) 接地模块及其制备方法
CN103965741A (zh) 一种用于浸渍微电机的绝缘漆
CN107059393A (zh) 一种便于清洁回收的防虫网的制备方法
CN109575339A (zh) 一种耐直流闪络的纳米涂层绝缘子及制备方法
CN109663729A (zh) 固体绝缘开关设备绝缘箱涂覆层工艺
CN204577201U (zh) 绝缘子
CN109545452A (zh) 一种漆包线及其制备工艺

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 330100 West Road, Wangcheng New District, Jiangxi, Nanchang

Applicant after: China Electrical Construction Group Jiangxi Equipment Co.,Ltd.

Address before: 330100 West Road, Wangcheng New District, Jiangxi, Nanchang

Applicant before: Jiangxi Power Equipment General Factory

GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191129