WO2021208686A1 - Revêtement pour augmenter/réduire le coefficient de frottement, son procédé de préparation et son utilisation - Google Patents

Revêtement pour augmenter/réduire le coefficient de frottement, son procédé de préparation et son utilisation Download PDF

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Publication number
WO2021208686A1
WO2021208686A1 PCT/CN2021/082568 CN2021082568W WO2021208686A1 WO 2021208686 A1 WO2021208686 A1 WO 2021208686A1 CN 2021082568 W CN2021082568 W CN 2021082568W WO 2021208686 A1 WO2021208686 A1 WO 2021208686A1
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WO
WIPO (PCT)
Prior art keywords
parts
coating
friction
friction coating
preparation
Prior art date
Application number
PCT/CN2021/082568
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English (en)
Chinese (zh)
Inventor
丁卯
杨勇
宋瑞涛
张祝富
石骏
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上海达克罗涂复工业有限公司
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Publication of WO2021208686A1 publication Critical patent/WO2021208686A1/fr

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    • 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
    • C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • C09D5/22—Luminous 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

  • the invention relates to the technical field of coatings, in particular to a coating for increasing and reducing the coefficient of friction, and a preparation method and application thereof.
  • Zinc-aluminum coating solution is a coating that uses zinc-aluminum flakes as the main anti-corrosion functional material.
  • the use of zinc-aluminum flakes can achieve the purpose of cathodic protection of the substrate. It is currently one of the most important anti-corrosion coatings.
  • the main components of the coating are zinc-aluminum flakes and cross-linked resins, the friction coefficient of the coating is greater than 0.40, and the friction coefficient is high and unstable. The surface hardness of such a coating is low, and it is easy to be coated during the assembly process. Scratches are left on the surface of the layer, making the workpiece a defective product.
  • the purpose of the present invention is to overcome the deficiencies in the prior art, provide a friction-reducing coating and apply it to reduce the friction of metal devices.
  • the present invention provides an anti-friction coating, which contains the following components by mass: 12-17 parts of modified acrylic resin, 68-74 parts of water, 6-10 parts of alkaline silicate, 2-10 parts of polytetrafluoroethylene , 1-2 parts of ethylene glycol monobutyl ether, 0.5-1 part of non-ionic surfactant.
  • the anti-friction coating further contains 1 to 1.5 parts of phosphor.
  • the alkali silicate is potassium silicate and/or sodium silicate.
  • the nonionic surfactant is polyoxyethylene ether and/or polyol type surfactant;
  • the polyol type surfactant is one or more of glycerin, pentaerythritol and sorbitol.
  • the present invention also provides a preparation method of the anti-friction coating, which comprises the following steps:
  • the mixing speed in the step (1) is 300-500 rpm, and the mixing time is 30-60 min.
  • the invention also provides the application of the anti-friction coating in reducing friction of metal devices.
  • the present invention also provides a method for reducing friction of the anti-friction coating, which comprises the following steps:
  • the anti-friction coating is subjected to film-forming treatment on the surface of the target part to obtain a coating part;
  • the baking temperature in the step (2) is 120-280° C.
  • the baking time is 15-35 min.
  • the present invention provides an anti-friction coating. Through the combination of various components, the friction performance of the paint film is reduced on the premise of ensuring the anti-corrosion performance and hardness of the paint film, and because of the addition of fluorescent substances, it can achieve good performance. Identify the missing and uneven parts, and adjust the coating in time to reduce the possibility of corrosion.
  • the present invention also provides a preparation method of the coating, which can be obtained by simple stirring during the preparation process, with simple operation, low process requirements and saving production cost.
  • the invention also provides the application of the coating in reducing friction of metal devices, which can effectively stabilize the friction coefficient.
  • the present invention provides an anti-friction coating, which contains the following components by mass: 12-17 parts of modified acrylic resin, 68-74 parts of water, 6-10 parts of alkaline silicate, 2-10 parts of polytetrafluoroethylene , 1-2 parts of ethylene glycol monobutyl ether, 0.5-1 part of non-ionic surfactant.
  • the amount of the modified acrylic resin is 12-17 parts, preferably 13-16 parts, and more preferably 14-15 parts.
  • the modified acrylic resin and the alkali silicate act together as a film-forming substance to determine the basic properties of the paint film and meet the performance requirements of the coating.
  • the modified acrylic resin is preferably JONCRYL 678 water-based resin and/or Levertex 567 water-based resin.
  • the amount of water is 68 to 74 parts, preferably 69 to 73 parts, and more preferably 70 to 72 parts.
  • the alkali silicate is 6-10 parts, preferably 7-9 parts, more preferably 7.5-8.5 parts.
  • the alkali silicate is preferably potassium silicate and/or sodium silicate.
  • the polytetrafluoroethylene is 2-10 parts, preferably 3-9 parts, more preferably 4-8 parts.
  • polytetrafluoroethylene is used as a lubricant to reduce the intermolecular cohesion of the polymer, thereby improving the phenomenon of internal friction and heat generation in the resin.
  • the amount of ethylene glycol monobutyl ether is 1 to 2 parts, preferably 1.2 to 1.8 parts, and more preferably 1.4 to 1.6 parts.
  • ethylene glycol monobutyl ether and water dilute other components to facilitate the coating of the coating on the substrate.
  • the nonionic surfactant is 0.5 to 1 part, preferably 0.6 to 0.9 part, and more preferably 0.7 to 0.8 part.
  • the nonionic surfactant is preferably polyoxyethylene ether and/or polyol type surfactant; the polyol type surfactant is preferably one or more of glycerin, pentaerythritol and sorbitol. kind.
  • the non-ionic surfactant improves the binding force between the lubricating component and the resin, and between the dry film and the substrate, and prevents the coating from falling off after the film is formed on the surface of the substrate.
  • the antifriction coating further preferably contains 1 to 1.5 parts of phosphor, more preferably 1.1 to 1.4 parts, and more preferably 1.2 to 1.3 parts.
  • the phosphor in the present invention is spherical particles with a diameter of preferably 15-25 ⁇ m, more preferably 18-22 ⁇ m.
  • the phosphor used in the present invention has good solvent resistance and acid and alkali resistance.
  • the present invention also provides a preparation method of the anti-friction coating, which comprises the following steps:
  • the mixing speed in the step (1) is preferably 300-500 rpm, more preferably 350-450 rpm; the mixing time is preferably 30-60 min, more preferably 40-50 min.
  • step (1) of the present invention is convenient for the non-ionic surfactant to be wrapped on the surface of the phosphor and/or polytetrafluoroethylene, and then dispersed in the resin; it is ensured that the phosphor and/or polytetrafluoroethylene is cured after baking. It can be evenly dispersed in the coating to optimize the binding force between the components.
  • the invention also provides the application of the anti-friction coating in reducing friction of metal devices.
  • the present invention also provides a method for reducing friction by using the anti-friction coating, which comprises the following steps:
  • the anti-friction coating is subjected to film-forming treatment on the surface of the target part to obtain a coating part;
  • the film-forming treatment in the step (1) is preferably immersion centrifugation or spraying;
  • the rotation speed of the immersion centrifugation is preferably 200-275 rpm, more preferably 220-260 rpm, more preferably 240-250 rpm;
  • the time of the immersion centrifugation is preferably 10-40s, more preferably 20-30s;
  • the spraying pressure is preferably 0.3-0.6Mpa, more preferably 0.4-0.5Mpa;
  • the baking temperature in the step (2) is preferably 120-280°C, more preferably 160-240°C, more preferably 180-220°C; the baking time is preferably 15-35 min , More preferably 20 to 30 minutes, more preferably 23 to 27 minutes.
  • An anti-friction coating containing the following components by mass: 14 parts of JONCRYL 678 water-based resin, 70 parts of water, 7.5 parts of sodium silicate, 5 parts of polytetrafluoroethylene, 1.5 parts of ethylene glycol monobutyl ether, polyoxyethylene ether 0.7 parts, 1.3 parts of phosphor.
  • An anti-friction coating comprising the following components by mass: 15 parts of Levertex 567 water-based resin, 69.5 parts of water, 8 parts of potassium silicate, 4 parts of polytetrafluoroethylene, 1.5 parts of ethylene glycol monobutyl ether, polyoxyethylene ether 0.8 parts, 1.2 parts of phosphor.
  • An anti-friction coating containing the following components by mass: 15 parts of JONCRYL 678 water-based resin, 72 parts of water, 8 parts of sodium silicate, 6 parts of polytetrafluoroethylene, 1.6 parts of ethylene glycol monobutyl ether, 0.8 parts of glycerin, 1.4 parts of phosphor.
  • An anti-friction coating comprising the following components by mass: 13 parts of Levertex 567 water-based resin, 69 parts of water, 7 parts of potassium silicate, 4 parts of polytetrafluoroethylene, 1.3 parts of ethylene glycol monobutyl ether, 0.7 parts of pentaerythritol, 1.2 parts of phosphor.
  • This application example uses the anti-friction coating in Example 1.
  • the antifriction coating obtained is applied by immersion centrifugation.
  • the speed of the immersion centrifugation is 250rpm and the time is 30s to obtain the coating part.
  • the coating part is baked at 180°C, and the result is obtained after baking for 25min. Finished parts.
  • This application example uses the anti-friction coating in Example 2.
  • This application example adopts the same coating preparation method as in application example 1, but the process of obtaining the coating part adopts the air spraying process, and the spraying pressure is 0.4Mpa to obtain the coating part; the subsequent baking process and test process are related to the application The same in Example 1.
  • This application example uses the anti-friction coating in Example 3.
  • This application example adopts the same preparation method and test process as in application example 1.
  • This application example uses the anti-friction coating in Example 4.
  • This application example adopts the same preparation method and test process as in application example 2.
  • the comparative example of this application adopts the paint in comparative example 1.
  • This application comparative example adopts the same preparation method and test process as in Application Example 1.
  • the comparative example of this application adopts the paint of comparative example 2.
  • This application comparative example adopts the same preparation method and test process as in Application Example 1.
  • the present invention provides an anti-friction coating.
  • the anti-friction coating provided by the present invention effectively stabilizes the applied friction coefficient and protects the substrate from damage caused by excessive or small surface friction; and Because the phosphor is added, the missing part can be coated in time to prevent damage to the substrate due to incomplete coating.

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

Abstract

La présente invention concerne un revêtement pour réduire le frottement, contenant les composants suivants en parties en masse : 12 à 17 parties d'une résine acrylique modifiée, 68 à 74 parties d'eau, 6 à 10 parties d'un silicate alcalin, 2 à 10 parties de polytétrafluoroéthylène, 1 à 2 parties d'éther monobutylique d'éthylène glycol, et 0,5 à 1 partie d'un tensioactif non ionique. En outre, le revêtement pour réduire le frottement contient en outre 1 à 1,5 partie d'une poudre fluorescente, la poudre fluorescente permettant d'identifier une partie de revêtement manquante et une partie irrégulière. L'invention concerne en outre un procédé de préparation du revêtement pour réduire le frottement et l'utilisation de celui-ci. Le procédé de préparation comprend des opérations de mélange, de revêtement et de torréfaction en séquence.
PCT/CN2021/082568 2020-04-15 2021-03-24 Revêtement pour augmenter/réduire le coefficient de frottement, son procédé de préparation et son utilisation WO2021208686A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010296896.8 2020-04-15
CN202010296896.8A CN111500098A (zh) 2020-04-15 2020-04-15 一种减摩涂料及其制备方法和应用

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WO2021208686A1 true WO2021208686A1 (fr) 2021-10-21

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WO (1) WO2021208686A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11879094B2 (en) 2022-06-03 2024-01-23 Halliburton Energy Services, Inc. Enhancing friction reduction and protection of wellbore equipment during hydraulic fracturing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111500098A (zh) * 2020-04-15 2020-08-07 上海达克罗涂复工业有限公司 一种减摩涂料及其制备方法和应用

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Publication number Priority date Publication date Assignee Title
JP2002363593A (ja) * 2001-06-07 2002-12-18 Kobe Steel Ltd 皮膜形成剤及び皮膜
CN101370880A (zh) * 2006-01-18 2009-02-18 艾华德·多肯股份公司 硅基防腐蚀剂
CN104059514A (zh) * 2013-10-12 2014-09-24 攀钢集团攀枝花钢铁研究院有限公司 一种自润滑处理剂组合物和热镀铝锌板及其制备方法
CN103911063A (zh) * 2014-04-10 2014-07-09 攀钢集团攀枝花钢铁研究院有限公司 一种自润滑处理剂组合物和热镀铝锌板及其制备方法
CN110029338A (zh) * 2019-04-28 2019-07-19 攀钢集团攀枝花钢铁研究院有限公司 热镀锌板表面涂层液以及耐高湿热镀锌钝化板的制备方法
CN110564189A (zh) * 2019-09-18 2019-12-13 重庆兴渝新材料研究院有限公司 一种无机纳米涂料及其制备方法
CN111500098A (zh) * 2020-04-15 2020-08-07 上海达克罗涂复工业有限公司 一种减摩涂料及其制备方法和应用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11879094B2 (en) 2022-06-03 2024-01-23 Halliburton Energy Services, Inc. Enhancing friction reduction and protection of wellbore equipment during hydraulic fracturing

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