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WO2018000236A1 - Décapant de peinture à base de solvant, son utilisation et procédé de décapage de peinture d'une pièce à travailler - Google Patents

Décapant de peinture à base de solvant, son utilisation et procédé de décapage de peinture d'une pièce à travailler Download PDF

Info

Publication number
WO2018000236A1
WO2018000236A1 PCT/CN2016/087648 CN2016087648W WO2018000236A1 WO 2018000236 A1 WO2018000236 A1 WO 2018000236A1 CN 2016087648 W CN2016087648 W CN 2016087648W WO 2018000236 A1 WO2018000236 A1 WO 2018000236A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
parts
paint
solvent
based paint
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.)
Ceased
Application number
PCT/CN2016/087648
Other languages
English (en)
Chinese (zh)
Inventor
万华
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.)
Shenzhen Yingheng Technology Co Ltd
Original Assignee
Shenzhen Yingheng Technology Co Ltd
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 Shenzhen Yingheng Technology Co Ltd filed Critical Shenzhen Yingheng Technology Co Ltd
Priority to PCT/CN2016/087648 priority Critical patent/WO2018000236A1/fr
Publication of WO2018000236A1 publication Critical patent/WO2018000236A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C09D9/00—Chemical paint or ink removers
    • C09D9/04—Chemical paint or ink removers with surface-active agents

Definitions

  • the present invention relates to the field of surface treatment technology, and in particular to a solvent type paint stripper and its application and a workpiece stripping method.
  • the surface treatment technology of the workpiece is usually applied.
  • the surface treatment of aluminum, iron and their alloys goes deep into all walks of life.
  • most of the work needs to be pretreated before surface treatment, for example, cleaning, decontamination and degreasing, and stripping is required for some specific workpieces.
  • the paint layer needs to be repainted, and the old paint layer needs to be removed before repainting.
  • a paint stripper generally utilizes the permeation force of a solvent molecule to cause the crosslinked polymer material to swell, soften, wrinkle, and dissolve under the action of an activator and other components, and is peeled off from the surface of the substrate.
  • Some paint strippers contain pure solvents such as methylene chloride and phenol. These paint strippers have a large odor and are more toxic and dangerous. technical problem
  • a solvent-based paint remover which is safe and effective and which is less corrosive to a substrate, and an application thereof and a paint stripping method of the workpiece are provided.
  • a solvent-based paint stripper comprising 60-100 parts of benzyl alcohol, 5-1 0 parts of hydrofluoric acid, 20-60 parts of triethanolamine, 30-100 parts of water according to the following parts by weight , 5-10 parts of nonylphenol ethoxylate.
  • a workpiece stripping method comprising the steps of: formulating a solvent-based paint stripper as described above; pouring a paint stripper into a paint strip; immersing the paint workpiece in the bath, the paint film is thicker
  • the workpiece can be first smeared with a knife and then immersed in the stripping tank. After the lacquer layer on the surface of the workpiece is blistered or wrinkled, it is taken out, and the workpiece is placed in clean water to rinse or rinse, and the lacquer layer is separated from the surface of the workpiece.
  • the solvent type paint stripper is used for removing the surface paint layer of the metal workpiece.
  • the solvent-based paint remover is a combination of the above-mentioned formula components, does not use corrosive concentrated sulfuric acid and the like, has low corrosivity to the substrate, is safe and environmentally friendly, and the organic paint stripping agent used for the solvent-based paint remover It is a high-efficiency expansion peeling type paint remover. It peels off the paint film by osmotic expansion, and the paint stripping speed is fast and the service life is long.
  • This embodiment provides a solvent-based paint stripper comprising the following components in parts by weight: 60-1 00 parts of benzyl alcohol, 5-10 parts of hydrofluoric acid, 20-60 parts of triethanolamine, 30-100 parts water, 5- 10 parts nonylphenol ethoxylate.
  • the parts by weight of benzyl alcohol are preferably from 70 to 100.
  • the parts by weight of hydrofluoric acid are preferably 6-9.
  • the triethanolamine is preferably 30-50 parts by weight.
  • the parts by weight of water are preferably from 30 to 60.
  • the nonylphenol ethoxylate is preferably 6-9 parts by weight.
  • the stripping agent stripping mechanism of the present embodiment is: triethanolamine and benzyl alcohol dissolving lacquer layer, hydrofluoric acid accelerating lacquer layer metal substrate separation, water for diluting concentration and reducing gas volatilization, nonylphenol ethoxylate To clean, disperse.
  • the above solvent-based paint remover is mainly used for the removal of the surface paint layer of a metal workpiece.
  • the metal workpiece can be aluminum
  • the paint layer can be all kinds of electrophoretic paint, baking paint and so on.
  • the aluminum stripping method includes the following steps: Pour the stripping liquid into the stripping tank, and then immerse the stripped workpiece in the product. The thicker film can be scratched to the metal substrate. Then immerse in the working fluid. After the coating on the surface of the workpiece is foamed or wrinkled, take it out, rinse it in the clear water or rinse it, and the coating will be completely and completely removed from the workpiece. The immersion time is 1-10 minutes depending on the type of paint layer, thickness and condition of the workpiece.
  • the above solvent-based paint remover uses a combination of the above-mentioned formula components, does not use corrosive concentrated sulfuric acid, methylene chloride, and the like, has low corrosivity to the substrate, is safe and environmentally friendly, and the above solvent-based paint remover
  • the organic stripping agent used is a high-efficiency expansion stripping paint stripper, which peels off the paint film by osmotic expansion, and has high peeling speed and long service life.
  • composition range, preparation method, and use effect of the above paint remover are exemplified by a plurality of examples.
  • Embodiment 1 Take the following amounts of ingredients: 60 parts of benzyl alcohol, 5 parts of hydrofluoric acid, 20 parts of triethanolamine, 30 parts of water, 5 parts of nonylphenol ethoxylate, placed in a mixing vessel, fully stirred After mixing evenly, it is formulated into a solvent-based paint remover for use.
  • the paint stripping method is as follows: the solvent-based paint stripper is added to the paint strip; the lacquered workpiece is immersed in the bath for 5 minutes, taken out, the surface of the workpiece is observed, the paint layer is foamed off, and the workpiece is placed. Rinse into clean water, the workpiece is clean and non-corrosive.
  • the paint stripping method is as follows: the solvent-based paint remover is added to the paint strip; the lacquered workpiece is immersed in the bath for 5 minutes, taken out, the surface of the workpiece is observed, the paint layer is foamed off, and the workpiece is placed. Rinse into clean water, the workpiece is clean and non-corrosive.
  • the paint stripping method is as follows: the solvent-based paint stripper is added to the paint strip; the lacquered workpiece is immersed in the bath for 5 minutes, taken out, the surface of the workpiece is observed, the paint layer is foamed off, and the workpiece is placed. Rinse into the water, the workpiece is clean and non-corrosive.
  • the stripping method is as follows: adding the configured solvent-type paint stripping agent to the paint stripping tank; immersing the painted workpiece in the bath for 5 minutes, taking out, observing the surface of the workpiece, foaming off the paint layer, and placing the workpiece Rinse into clean water, the workpiece is clean and non-corrosive.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

La présente invention concerne un décapant de peinture à base de solvant comprenant les constituants suivants en parties en poids : de 60 à 100 parties d'alcool de benzyle, de 5 à 10 parties d'acide fluorhydrique, de 20 à 60 parties de triéthanolamine, de 30 à 100 parties d'eau et de 5 à 10 parties d'éther de nonylphénol polyoxyéthylène. La présente invention concerne un procédé de décapage de peinture d'une pièce à travailler, comprenant la mise en place d'une pièce à travailler avec la peinture dans une cuve de décapage de peinture, et après que la couche de peinture sur la surface de la pièce à travailler soit cloquée ou ridée, la mise en place de la pièce à travailler dans de l'eau propre pour le lavage ou le rinçage, pour une pièce à travailler présentant un film de peinture plus épais, le film de peinture pouvant être découpé en utilisant un petit couteau avant d'être immergé dans la cuve de décapage de peinture. Le décapant de peinture peut être utilisé pour le traitement de décapage d'une couche de peinture de la surface d'une pièce à travailler métallique.
PCT/CN2016/087648 2016-06-29 2016-06-29 Décapant de peinture à base de solvant, son utilisation et procédé de décapage de peinture d'une pièce à travailler Ceased WO2018000236A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/087648 WO2018000236A1 (fr) 2016-06-29 2016-06-29 Décapant de peinture à base de solvant, son utilisation et procédé de décapage de peinture d'une pièce à travailler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/087648 WO2018000236A1 (fr) 2016-06-29 2016-06-29 Décapant de peinture à base de solvant, son utilisation et procédé de décapage de peinture d'une pièce à travailler

Publications (1)

Publication Number Publication Date
WO2018000236A1 true WO2018000236A1 (fr) 2018-01-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/087648 Ceased WO2018000236A1 (fr) 2016-06-29 2016-06-29 Décapant de peinture à base de solvant, son utilisation et procédé de décapage de peinture d'une pièce à travailler

Country Status (1)

Country Link
WO (1) WO2018000236A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100004802A1 (it) 2021-03-02 2022-09-02 Imedicals S R L Dispositivo per la dosimetria della radiazione uv assorbita da un utente

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1188126A (zh) * 1996-12-06 1998-07-22 埃勒夫阿托化学有限公司 用于剥离色漆、清漆或天然漆的组合物
CN1188124A (zh) * 1996-12-06 1998-07-22 埃勒夫阿托化学有限公司 用于剥离高度交联的油漆和底漆的水性组合物
CN101058691A (zh) * 2006-04-19 2007-10-24 比亚迪股份有限公司 一种脱漆剂组合物
CN101283059A (zh) * 2005-10-18 2008-10-08 埃科莱布有限公司 包含有机酸-碱对的地板清除剂/清洁剂
CN101684213A (zh) * 2009-07-31 2010-03-31 南京师范大学 无氯无苯多功能复合脱漆剂及其生产方法
CN101724312A (zh) * 2009-12-11 2010-06-09 上海立昌环境工程有限公司 一种脱漆剂及其制备和应用

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1188126A (zh) * 1996-12-06 1998-07-22 埃勒夫阿托化学有限公司 用于剥离色漆、清漆或天然漆的组合物
CN1188124A (zh) * 1996-12-06 1998-07-22 埃勒夫阿托化学有限公司 用于剥离高度交联的油漆和底漆的水性组合物
CN101283059A (zh) * 2005-10-18 2008-10-08 埃科莱布有限公司 包含有机酸-碱对的地板清除剂/清洁剂
CN101058691A (zh) * 2006-04-19 2007-10-24 比亚迪股份有限公司 一种脱漆剂组合物
CN101684213A (zh) * 2009-07-31 2010-03-31 南京师范大学 无氯无苯多功能复合脱漆剂及其生产方法
CN101724312A (zh) * 2009-12-11 2010-06-09 上海立昌环境工程有限公司 一种脱漆剂及其制备和应用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100004802A1 (it) 2021-03-02 2022-09-02 Imedicals S R L Dispositivo per la dosimetria della radiazione uv assorbita da un utente

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