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WO2018000236A1 - 溶剂型脱漆剂及其应用和工件脱漆方法 - Google Patents

溶剂型脱漆剂及其应用和工件脱漆方法 Download PDF

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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
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workpiece
parts
paint
solvent
based paint
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Ceased
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English (en)
French (fr)
Inventor
万华
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Shenzhen Yingheng Technology Co Ltd
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Shenzhen Yingheng Technology Co Ltd
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Priority to PCT/CN2016/087648 priority Critical patent/WO2018000236A1/zh
Publication of WO2018000236A1 publication Critical patent/WO2018000236A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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.

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  • 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

一种溶剂型脱漆剂，包括按照重量份数配比的下列成分：60-100份苯甲醇，5-10份氢氟酸，20-60份三乙醇胺，30-100份水，5-10份壬基酚聚氧乙烯醚。工件脱漆的方法包括将带漆工件放入脱漆槽中，漆膜较厚的工件可先用小刀将漆膜划开再浸入脱漆槽中，待工件表面的漆层起泡或起皱后，再将工件放入清水中冲洗或漂洗。该脱漆剂可用于金属工件的表面漆层的脱除处理。

Description

发明名称：溶剂型脱漆剂及其应用和工件脱漆方法
技术领域
[0001] 本发明涉及表面处理技术领域， 具体涉及一种溶剂型脱漆剂及其应用和工件脱 漆方法。
背景技术
[0002] 为提高产品表面性能或者外观， 通常对工件表面处理技术。 例如， 铝、 铁及其 合金的表面处理工艺深入各行各业中。 而且， 大多数工作在进行表面处理前还 需要经过预处理， 例如， 进行清洗， 除污除油， 对于一些特定工件还需要进行 脱漆处理。 例如， 对于一些喷涂不良漆层， 需要重新喷涂漆层， 需要先退除旧 漆层， 再重新喷漆。
[0003] 脱漆剂通常利用溶剂分子的渗透力， 在活化剂和其他成分的作用下， 使交联的 高分子材料溶胀、 软化、 起皱和溶解， 脱离基材表面而剥落下来。 一些脱漆剂 含有二氯甲烷， 苯酚等纯溶剂， 此类脱漆剂气味的较大， 毒性较大， 较危险。 技术问题
[0004] 有鉴于此， 提供一种安全有效且对基材腐蚀小的溶剂型脱漆剂及其应用和工件 脱漆方法。
问题的解决方案
技术解决方案
[0005] 一种溶剂型脱漆剂， 其包括按照重量份数配比的下列成分 60-100份苯甲醇， 5-1 0份氢氟酸， 20-60份三乙醇胺， 30-100份水， 5-10份壬基酚聚氧乙烯醚。
[0006] 一种工件脱漆方法， 其包括下列步骤： 配制如上所述的溶剂型脱漆剂； 将脱漆 剂倒入脱漆槽中； 将带漆工件浸入槽液中， 漆膜较厚的工件可先用小刀将漆膜 划开再浸入脱漆槽中。 待工件表面的漆层起泡或起皱后， 取出， 将工件放入清 水中冲洗或漂洗， 漆层脱离工件表面。
[0007] 以及， 所述的溶剂型脱漆剂用于金属工件的表面漆层的脱除。
发明的有益效果 有益效果
[0008] 上述溶剂型脱漆剂釆用上述配方成分的组合， 没有采用腐蚀性的浓硫酸等成分 , 对基材腐蚀性小， 安全环保， 而且上述溶剂型脱漆剂采用的有机剥漆剂是高 效膨胀剥离型脱漆剂， 通过渗透膨胀作用， 使漆膜呈片状剥落， 剥漆速度快且 使用寿命长。
发明实施例
本发明的实施方式
[0009] 以下将结合具体实施例对本发明进行详细说明。
[0010] 本实施例提供一种溶剂型脱漆剂， 其包括按照重量份数配比的下列成分： 60-1 00份苯甲醇， 5-10份氢氟酸， 20-60份三乙醇胺， 30-100份水， 5- 10份壬基酚聚氧 乙烯醚。 具体地， 苯甲醇的重量份数优选为 70-100。 氢氟酸的重量份数优选为 6- 9。 三乙醇胺的重量份数优选为 30-50。 水的重量份数优选为 30-60。 壬基酚聚氧 乙烯醚的重量份数优选为 6-9。 本实施例的脱漆剂脱漆机理为： 三乙醇胺与苯甲 醇溶解漆层， 氢氟酸加速漆层金属基材分离， 水用于稀释浓度且减少气体挥发 ， 壬基酚聚氧乙烯醚用以清洁， 分散。
[0011] 上述溶剂型脱漆剂主要用于金属工件的表面漆层的脱除。 金属工件可以是铝材
, 铁件， 锌合金等， 漆层可以是各类电泳漆、 烤漆等。 以应用于铝材工件为例 , 具体脱漆方法包括以下步骤： 将剥漆液倒入脱漆槽中， 然后将带漆工件浸入 本品中， 较厚的漆膜可先划破至金属基体再浸入工作液中。 待工件表面的涂层 起泡或起皱后， 取出， 将工件放入清水中冲洗或漂洗， 涂层便会干净彻底地脱 离工件。 视漆层种类、 厚度及工件状况， 浸渍时间为 1-10分钟。
[0012] 上述溶剂型脱漆剂釆用上述配方成分的组合， 没有采用腐蚀性的浓硫酸， 二氯 甲垸， 等成分， 对基材腐蚀性小， 安全环保， 而且上述溶剂型脱漆剂采用的有 机剥漆剂是高效膨胀剥离型脱漆剂， 通过渗透膨胀作用， 使漆膜呈片状剥落， 剥漆速度快且使用寿命长。
[0013] 以下通过多个实施例来举例说明上述脱漆剂的组成范围、 配制方法以及使用效 果等方面。
[0014] 实施例 1 [0015] 取如下用量的各成分： 60份苯甲醇， 5份氢氟酸， 20份三乙醇胺， 30份水， 5份 壬基酚聚氧乙烯醚， 将它们置于混合容器中， 充分搅拌， 混合均匀后， 配制成 溶剂型脱漆剂， 备用。
[0016] 脱漆方法如下： 将配置好的溶剂型脱漆剂加入到脱漆槽中； 将带漆工件浸入槽 液中 5分钟， 取出， 观察工件表面， 漆层起泡脱落， 将工件放入清水中冲洗， 工 件干净无腐蚀。
[0017] 实施例 2
[0018] 取如下用量的各成分： 70份苯甲醇， 7份氢氟酸， 40份三乙醇胺， 40份水， 7份 壬基酚聚氧乙烯醚， 将它们置于混合容器中， 充分搅拌， 混合均匀后， 配制成 溶剂型脱漆剂， 备用。
[0019] 脱漆方法如下： 将配置好的溶剂型脱漆剂加入到脱漆槽中； 将带漆工件浸入槽 液中 5分钟， 取出， 观察工件表面， 漆层起泡脱落， 将工件放入清水中冲洗， 工 件干净无腐蚀。
[0020] 实施例 3
[0021] 取如下用量的各成分： 取如下用量的各成分： 85份苯甲醇， 8份氢氟酸， 50份 三乙醇胺， 50份水， 8份壬基酚聚氧乙烯醚， 将它们置于混合容器中， 充分搅拌
, 混合均匀后， 配制成溶剂型脱漆剂， 备用。
[0022] 脱漆方法如下： 将配置好的溶剂型脱漆剂加入到脱漆槽中； 将带漆工件浸入槽 液中 5分钟， 取出， 观察工件表面， 漆层起泡脱落， 将工件放入淸水中冲洗， 工 件干净无腐蚀。
[0023] 实施例 4
[0024] 取如下用量的各成分： 100份苯甲醇， 10份氢氟酸， 60份三乙醇胺， 60份水， 1
0份壬基酚聚氧乙烯醚， 将它们置于混合容器中， 充分搅拌， 混合均匀后， 配制 成溶剂型脱漆剂， 备用。
[0025] 脱漆方法如下： 将配置好的溶剂型脱漆剂加入到脱漆槽中； 将带漆工件浸入槽 液中 5分钟， 取出， 观察工件表面， 漆层起泡脱落， 将工件放入清水中冲洗， 工 件干净无腐蚀。
[0026] 需要说明的是， 本发明并不局限于上述实施方式， 根据本发明的创造精神， 本 领域技术人员还可以做出其他变化， 这些依据本发明的创造精神所做的变化， 都应包含在本发明所要求保护的范围之内。

Claims

[权利要求 1] 一种溶剂型脱漆剂， 其包括按照重量份数配比的下列成分： 60-100份 苯甲醇， 5-10份氢氟酸， 20-60份三乙醇胺， 30-100份水， 5-10份壬基 酚聚氧乙烯醚。
[权利要求 2] 如权利要求 1所述的溶剂型脱漆剂 其特征在于， 所述苯甲醇的重量 份数为 70- 100。
[权利要求 3] 如权利要求 1所述的溶剂型脱漆剂 其特征在于， 所述氢氟酸的重量 份数为 6-9。
[权利要求 4] 如权利要求 1所述的溶剂型脱漆剂 其特征在于， 所述三乙醇胺的重 量份数为 30-50。
[权利要求 5] 如权利要求 1所述的溶剂型脱漆剂 其特征在于， 所述水的重量份数 为 30-60。
[权利要求 6] 如权利要求 1所述的溶剂型脱漆剂 其特征在于， 所述基酚聚氧乙烯 醚的重量份数为 6-9。
[权利要求 7] —种工件脱漆方法， 其包括下列步骤： 配制如权利要求 1-8任一项所 述的溶剂型脱漆剂； 将脱漆剂倒入脱漆槽中； 将带漆工件浸入槽液中 ， 漆膜较厚的工件可先用小刀将漆膜划幵再浸入脱漆槽中。 待工件表 面的漆层起泡或起皱后， 取出， 将工件放入清水中冲洗或漂洗， 漆层 脱离工件表面。
[权利要求 8] 如权利要求 1-6任一项所述的溶剂型脱漆剂用于金属工件的表面漆层 的脱除。
PCT/CN2016/087648 2016-06-29 2016-06-29 溶剂型脱漆剂及其应用和工件脱漆方法 Ceased WO2018000236A1 (zh)

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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
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

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Publication number Priority date Publication date Assignee Title
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
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
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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