WO2019000441A1 - Silane coating, metal workpiece and coating treatment method thereof - Google Patents
Silane coating, metal workpiece and coating treatment method thereof Download PDFInfo
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- WO2019000441A1 WO2019000441A1 PCT/CN2017/091295 CN2017091295W WO2019000441A1 WO 2019000441 A1 WO2019000441 A1 WO 2019000441A1 CN 2017091295 W CN2017091295 W CN 2017091295W WO 2019000441 A1 WO2019000441 A1 WO 2019000441A1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
Definitions
- the invention relates to the technical field of metal surface treatment, in particular to a silane coating, a metal workpiece and a surface coating method thereof.
- the surface treatment technology of the workpiece is usually used.
- the surface treatment processes of steel, zinc, aluminum, iron and their alloys go deep into all walks of life.
- most of the workpieces need to be pretreated before surface treatment, for example, cleaning, decontamination and degreasing, and metal workpieces for certain purposes also need to be treated and coated.
- silane coating having good bonding ability and corrosion resistance and environmental protection is provided, as well as a metal workpiece surface coating treatment method and a metal workpiece obtained by coating treatment.
- a silane coating comprising the following components: 5-20 g/L 3-aminopropyltriethoxysilane, 50-300 mg/L cerium salt, 10-50 mg/L nano-oxide, 20-100 g/L silane coupling Joint agent, 10-50g/L ethanol, the balance of water.
- a metal workpiece surface coating method comprises the steps of: preparing a silane coating as described above; immersing, painting, spraying a coating solution on a metal workpiece, and controlling the drying temperature of the coating to be 20-200 ° C, after predetermined Time is dry.
- the above silane coating forms a coating on the metal surface, and the coating metal surface has good bonding ability and corrosion resistance.
- the silane coating is a better alternative to the conventional coating, and the coating has low thickness, no odor, low energy consumption, and no waste. It is a new type of material that is energy-saving, environmentally friendly and non-polluting. It is suitable for the coating of aluminum alloy, cold-rolled steel and galvanized.
- Embodiments of the present invention provide a silane coating comprising the following components, 5-20 g/L 3-aminopropyltriethoxysilane, 50-300 mg/L cerium salt, 10-50 mg/L nano oxide, 20- 100 g / L silane coupling agent, 10-50 g / L ethanol, the balance of water.
- the 3-aminopropyltriethoxysilane is 10-20 g/L by weight.
- the yttrium salt has a weight fraction of 100-250 mg/L
- the nano-oxide has a weight fraction of 15-45 mg/L
- the silane coupling agent has a weight fraction of 40-80 g/L.
- the ethanol has a weight fraction of 15-45 g/L.
- the nano-oxide is preferably nano-silica or nano-cerium oxide in a part by weight of 15-45 mg/L.
- the silane coating has a drying temperature of 120-180 ° C when in use.
- the embodiment of the invention further provides a metal workpiece surface coating method, comprising the steps of: preparing a silane coating as described above; controlling the drying temperature to be 20-200 ° C; immersing, brushing, spraying the coating solution on the metal workpiece; The time and temperature are dry.
- the metal workpiece formed into a desired shape is a clean metal member that has been degreased, descaled, and passivated.
- the silane coating is a cerium salt silane coating, odorless, non-disposal, suitable for metal coating treatment of steel, zinc and aluminum, and can replace paint and powder coating.
- the silane coating forms a colorless coating on the metal surface, which has excellent bonding ability to metal surfaces and strong corrosion resistance.
- Embodiments of the present invention also provide a metal workpiece that is treated by surface coating of a metal workpiece as described above to form a coating on the surface of the metal workpiece.
- Preparation method slowly add silane coupling agent to deionized water with a small amount of glacial acetic acid, stir vigorously during the addition process, the amount of glacial acetic acid is controlled between pH 5-6, and ethanol and 3-aminopropyl are added again.
- the metal workpiece required for the following examples is a clean aluminum alloy which has been degreased, descaled, and passivated.
- the ingredients were mixed according to the following parts by weight: 5 g/L 3-aminopropyltriethoxysilane, 50 mg/L lanthanum nitrate, 10 mg/L nano silica, 20 g/L silane coupling agent, 10 g/L ethanol, The balance of water.
- Treatment method prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
- the ingredients were mixed according to the following parts by weight: 10 g/L 3-aminopropyltriethoxysilane, 120 mg/L lanthanum nitrate, 18 mg/L nano silica, 50 g/L silane coupling agent, 18 g/L ethanol, The balance of water.
- Treatment method prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
- the ingredients were mixed according to the following parts by weight: 15 g/L 3-aminopropyltriethoxysilane, 200 mg/L lanthanum nitrate, 35 mg/L nano silica, 75 g/L silane coupling agent, 35 g/L ethanol, The balance of water.
- Treatment method prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
- the ingredients were mixed according to the following parts by weight: 20 g/L 3-aminopropyltriethoxysilane, 300 mg/L lanthanum nitrate, 50 mg/L nano silica, 100 g/L silane coupling agent, 50 g/L ethanol, The balance of water.
- Treatment method prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
A silane coating, a metal workpiece and a surface coating method thereof. The coating comprises 5-20g/L of 3-aminopropyltriethoxysilane, 50-300mg/L cerium salt, 10-50mg/L nano oxide, 20-100g/L silane coupling agent, 10-50g/L ethanol, and a balance of water. The present silane coating forms a dense and firm silicone polymer coating with a metal surface by means of covalent bonding; said coating can block the intrusion of corrosive substances and improve the corrosion resistance of the metal, being suitable for use as a base later of an organic coating and also as a final protective layer.
Description
本发明涉及金属表面处理技术领域，具体涉及一种硅烷涂料、金属工件及其表面涂覆方法。The invention relates to the technical field of metal surface treatment, in particular to a silane coating, a metal workpiece and a surface coating method thereof.
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，钢铁、锌、铝、铁及其合金的表面处理工艺深入各行各业中。而且，大多数工件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，某些用途的金属工件还需要进行处理涂装处理。In order to improve the surface properties or appearance of the product, the surface treatment technology of the workpiece is usually used. For example, the surface treatment processes of steel, zinc, aluminum, iron and their alloys go deep into all walks of life. Moreover, most of the workpieces need to be pretreated before surface treatment, for example, cleaning, decontamination and degreasing, and metal workpieces for certain purposes also need to be treated and coated.
一般在机械加工及电子电气行业，大多金属都需要进行表面涂装处理，传统的涂装为油溶性或者粉末，其厚度大、气味大、能耗高，难以满足越来越高的环保需求。Generally, in the mechanical processing and electrical and electronic industries, most metals require surface coating treatment. The traditional coating is oil-soluble or powder. The thickness is large, the smell is high, and the energy consumption is high, which is difficult to meet the increasingly high environmental protection requirements.
有鉴于此，提供一种结合能力良好和耐腐蚀能力强并且环保的硅烷涂料，以及金属工件表面涂装处理方法和经过涂装处理后制得的金属工件。In view of this, a silane coating having good bonding ability and corrosion resistance and environmental protection is provided, as well as a metal workpiece surface coating treatment method and a metal workpiece obtained by coating treatment.
问题的解决方案Problem solution
一种硅烷涂料，包括如下的成分：5-20g/L 3-氨丙基三乙氧基硅烷，50-300mg/L铈盐，10-50mg/L纳米氧化物，20-100g/L硅烷偶联剂，10-50g/L乙醇，余量的水。A silane coating comprising the following components: 5-20 g/L 3-aminopropyltriethoxysilane, 50-300 mg/L cerium salt, 10-50 mg/L nano-oxide, 20-100 g/L silane coupling Joint agent, 10-50g/L ethanol, the balance of water.
一种金属工件表面涂覆方法，其包括下列步骤：配制如上所述的硅烷涂料；将金属工件浸入、涂刷、喷涂涂料溶液，控制所述涂料的烘干温度为20-200℃，经过预定时间干燥。A metal workpiece surface coating method comprises the steps of: preparing a silane coating as described above; immersing, painting, spraying a coating solution on a metal workpiece, and controlling the drying temperature of the coating to be 20-200 ° C, after predetermined Time is dry.
以及，一种金属工件，其表面通过如上所述的金属工件表面涂装处理方法形成涂层。And, a metal workpiece whose surface is formed into a coating by a metal workpiece surface coating treatment as described above.
发明的有益效果
Advantageous effects of the invention
上述硅烷涂料在金属表面形成涂层，涂层金属表面的结合能力良好和耐腐蚀能力强，该硅烷涂料是替代传统涂料的较佳选择，该涂料厚度低、无气味、能耗低、无废弃，是一种节能环保、无污染的新型材料，适用于铝合金，冷轧钢，镀锌等的涂装。The above silane coating forms a coating on the metal surface, and the coating metal surface has good bonding ability and corrosion resistance. The silane coating is a better alternative to the conventional coating, and the coating has low thickness, no odor, low energy consumption, and no waste. It is a new type of material that is energy-saving, environmentally friendly and non-polluting. It is suitable for the coating of aluminum alloy, cold-rolled steel and galvanized.
发明实施例Invention embodiment
以下将结合具体实施例对本发明进行详细说明。The invention will now be described in detail in connection with specific embodiments.
本发明实施例提供一种硅烷涂料，包括如下的成分，5-20g/L 3-氨丙基三乙氧基硅烷，50-300mg/L铈盐，10-50mg/L纳米氧化物，20-100g/L硅烷偶联剂，10-50g/L乙醇，余量的水。Embodiments of the present invention provide a silane coating comprising the following components, 5-20 g/L 3-aminopropyltriethoxysilane, 50-300 mg/L cerium salt, 10-50 mg/L nano oxide, 20- 100 g / L silane coupling agent, 10-50 g / L ethanol, the balance of water.
优选地，所述3-氨丙基三乙氧基硅烷的重量份数为10-20g/L。优选地，所述铈盐的重量份数为100-250mg/L，所述纳米氧化物的重量份数为15-45mg/L，所述硅烷偶联剂的重量份数40-80g/L，所述乙醇的重量分数15-45g/L。所述纳米氧化物优选为纳米二氧化硅或纳米氧化铈，重量份数为15-45mg/L。Preferably, the 3-aminopropyltriethoxysilane is 10-20 g/L by weight. Preferably, the yttrium salt has a weight fraction of 100-250 mg/L, the nano-oxide has a weight fraction of 15-45 mg/L, and the silane coupling agent has a weight fraction of 40-80 g/L. The ethanol has a weight fraction of 15-45 g/L. The nano-oxide is preferably nano-silica or nano-cerium oxide in a part by weight of 15-45 mg/L.
优选地，在使用时，所述硅烷涂料的干燥温度为120-180℃Preferably, the silane coating has a drying temperature of 120-180 ° C when in use.
本发明实施例还提供一种金属工件表面涂覆方法，其包括下列步骤：配制如上所述的硅烷涂料；干燥温度控制为20-200℃；将金属工件浸入、刷涂、喷涂涂料溶液，经过预定时间、温度干燥。The embodiment of the invention further provides a metal workpiece surface coating method, comprising the steps of: preparing a silane coating as described above; controlling the drying temperature to be 20-200 ° C; immersing, brushing, spraying the coating solution on the metal workpiece; The time and temperature are dry.
具体地，所述形成为所需的金属工件为经过脱脂，除氧化皮，钝化之后的洁净的金属件。Specifically, the metal workpiece formed into a desired shape is a clean metal member that has been degreased, descaled, and passivated.
本发明实施例中硅烷涂料是铈盐硅烷涂料、无气味、无废弃，适合于钢铁、锌和铝等金属涂装处理，可以代替油漆，粉末涂装。该硅烷涂料在金属表面形成无色涂层，与金属表面的结合能力非常好和耐腐蚀能力强。In the embodiment of the invention, the silane coating is a cerium salt silane coating, odorless, non-disposal, suitable for metal coating treatment of steel, zinc and aluminum, and can replace paint and powder coating. The silane coating forms a colorless coating on the metal surface, which has excellent bonding ability to metal surfaces and strong corrosion resistance.
本发明实施例还提供一种金属工件，其通过如上所述的金属工件表面涂装进行处理，使金属工件表面形成涂层。Embodiments of the present invention also provide a metal workpiece that is treated by surface coating of a metal workpiece as described above to form a coating on the surface of the metal workpiece.
制备方法：往溶有少量冰醋酸的去离子水中缓慢加入硅烷偶联剂，加入过程中激烈搅拌，冰醋酸的量控制在PH值5-6之间，再一次加入乙醇、3-氨丙基三乙氧
基硅烷、纳米氧化物、铈盐，充分搅拌均匀。Preparation method: slowly add silane coupling agent to deionized water with a small amount of glacial acetic acid, stir vigorously during the addition process, the amount of glacial acetic acid is controlled between pH 5-6, and ethanol and 3-aminopropyl are added again. Triethoxy
Base silane, nano oxide, strontium salt, fully stirred evenly.
下列实施例所需的金属工件为经过脱脂，除氧化皮，钝化之后的洁净的铝合金为例。The metal workpiece required for the following examples is a clean aluminum alloy which has been degreased, descaled, and passivated.
实施例1Example 1
按照下列重量份数混合各成分：5g/L 3-氨丙基三乙氧基硅烷，50mg/L硝酸铈，10mg/L纳米二氧化硅，20g/L硅烷偶联剂，10g/L乙醇，余量的水。The ingredients were mixed according to the following parts by weight: 5 g/L 3-aminopropyltriethoxysilane, 50 mg/L lanthanum nitrate, 10 mg/L nano silica, 20 g/L silane coupling agent, 10 g/L ethanol, The balance of water.
处理方法：配制如上所述的硅烷涂料，搅拌均匀；将铝合金工件浸入于涂料溶液中，经过30S时间处理后，以180℃干燥，经过20分钟时间处理后，取出工件，自然冷却。Treatment method: prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
经过上述形成为所需的金属工件。处理后，观察工件表面，工件表面平整均匀，铝件中性盐雾测试1000小时不腐蚀，且附着力很好，水煮2小时百格试验，无任何涂层脱落，等级为0。After the above, it is formed into a desired metal workpiece. After the treatment, the surface of the workpiece was observed, and the surface of the workpiece was even and even. The neutral salt spray test of the aluminum piece did not corrode for 1000 hours, and the adhesion was very good. The water was boiled for 2 hours and the test was carried out without any coating peeling off, and the grade was 0.
实施例2Example 2
按照下列重量份数混合各成分：10g/L 3-氨丙基三乙氧基硅烷，120mg/L硝酸铈，18mg/L纳米二氧化硅，50g/L硅烷偶联剂，18g/L乙醇，余量的水。The ingredients were mixed according to the following parts by weight: 10 g/L 3-aminopropyltriethoxysilane, 120 mg/L lanthanum nitrate, 18 mg/L nano silica, 50 g/L silane coupling agent, 18 g/L ethanol, The balance of water.
处理方法：配制如上所述的硅烷涂料，搅拌均匀；将铝合金工件浸入于涂料溶液中，经过30S时间处理后，以180℃干燥，经过20分钟时间处理后，取出工件，自然冷却。Treatment method: prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
经过上述形成为所需的金属工件。处理后，观察工件表面，工件表面平整均匀，铝件中性盐雾测试1400小时不腐蚀，且附着力很好，水煮2小时百格试验，无任何涂层脱落，等级为0。After the above, it is formed into a desired metal workpiece. After the treatment, the surface of the workpiece was observed, and the surface of the workpiece was even and even. The neutral salt spray test of aluminum was not corroded for 1400 hours, and the adhesion was very good. The water was boiled for 2 hours and the test was carried out without any coating peeling off, and the grade was 0.
实施例3Example 3
按照下列重量份数混合各成分：15g/L 3-氨丙基三乙氧基硅烷，200mg/L硝酸铈，35mg/L纳米二氧化硅，75g/L硅烷偶联剂，35g/L乙醇，余量的水。The ingredients were mixed according to the following parts by weight: 15 g/L 3-aminopropyltriethoxysilane, 200 mg/L lanthanum nitrate, 35 mg/L nano silica, 75 g/L silane coupling agent, 35 g/L ethanol, The balance of water.
处理方法：配制如上所述的硅烷涂料，搅拌均匀；将铝合金工件浸入于涂料溶液中，经过30S时间处理后，以180℃干燥，经过20分钟时间处理后，取出工件，自然冷却。Treatment method: prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
经过上述形成为所需的金属工件。处理后，观察工件表面，工件表面平整均匀
，铝件中性盐雾测试2000小时不腐蚀，且附着力很好，水煮2小时百格试验，无任何涂层脱落，等级为0。After the above, it is formed into a desired metal workpiece. After processing, observe the surface of the workpiece, and the surface of the workpiece is even and even
The neutral salt spray test of aluminum parts does not corrode for 2000 hours, and the adhesion is very good. It is boiled for 2 hours and 100 grid test without any coating peeling off, and the grade is 0.
实施例4Example 4
按照下列重量份数混合各成分：20g/L 3-氨丙基三乙氧基硅烷，300mg/L硝酸铈，50mg/L纳米二氧化硅，100g/L硅烷偶联剂，50g/L乙醇，余量的水。The ingredients were mixed according to the following parts by weight: 20 g/L 3-aminopropyltriethoxysilane, 300 mg/L lanthanum nitrate, 50 mg/L nano silica, 100 g/L silane coupling agent, 50 g/L ethanol, The balance of water.
处理方法：配制如上所述的硅烷涂料，搅拌均匀；将铝合金工件浸入于涂料溶液中，经过30S时间处理后，以180℃干燥，经过20分钟时间处理后，取出工件，自然冷却。Treatment method: prepare the silane coating as described above and stir evenly; immerse the aluminum alloy workpiece in the coating solution, and after drying for 30 seconds, dry at 180 ° C, after 20 minutes of treatment, take out the workpiece and naturally cool.
经过上述形成为所需的金属工件。处理后，观察工件表面，工件表面平整均匀，铝件中性盐雾测试2000小时不腐蚀，且附着力很好，水煮2小时百格试验，无任何涂层脱落，等级为0。After the above, it is formed into a desired metal workpiece. After the treatment, the surface of the workpiece was observed, and the surface of the workpiece was even and even. The neutral salt spray test of aluminum parts was not corroded for 2000 hours, and the adhesion was very good. The water was boiled for 2 hours and the test was carried out without any coating peeling off, and the grade was 0.
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。
It should be noted that the present invention is not limited to the above embodiments, and other changes may be made by those skilled in the art according to the inventive spirit of the present invention, and the changes according to the inventive spirit of the present invention should be included in the present invention. Within the scope of the claimed invention.
Claims (10)
- 一种硅烷涂料，其特征在于，包括如下的成分：5-20g/L 3-氨丙基三乙氧基硅烷，50-300mg/L铈盐，10-50mg/L纳米氧化物，20-100g/L硅烷偶联剂，10-50g/L乙醇，余量的水。A silane coating characterized by comprising the following components: 5-20 g/L 3-aminopropyltriethoxysilane, 50-300 mg/L cerium salt, 10-50 mg/L nano-oxide, 20-100 g / L silane coupling agent, 10-50 g / L ethanol, the balance of water.
- 如权利要求1所述的硅烷涂料，其特征在于，所述3-氨丙基三乙氧基硅烷的重量份数为10-20g/L。The silane coating according to claim 1, wherein the 3-aminopropyltriethoxysilane is 10-20 g/L by weight.
- 如权利要求1所述的硅烷涂料，其特征在于，所述铈盐优选为氯化铈或硝酸铈，重量份数为100-250mg/L。The silane coating according to claim 1, wherein the cerium salt is preferably cerium chloride or cerium nitrate in a part by weight of from 100 to 250 mg/L.
- 如权利要求1所述的硅烷涂料，其特征在于，所述纳米氧化物为纳米二氧化硅或纳米氧化铈，重量份数为15-45mg/L。The silane coating according to claim 1, wherein the nano-oxide is nano-silica or nano-cerium oxide in a part by weight of 15 to 45 mg/L.
- 如权利要求1所述的硅烷涂料，其特征在于，所述硅烷偶联剂的重量份数为40-80g/L。The silane coating according to claim 1, wherein the silane coupling agent is 40 to 80 g/L by weight.
- 如权利要求1所述的硅烷涂料，其特征在于，所述乙醇的重量份数为15-45g/L。The silane coating according to claim 1, wherein the ethanol is present in an amount of from 15 to 45 g/L.
- 如权利要求1所述的硅烷涂料，其特征在于，所述的硅烷偶联剂优选为γ-氨丙基三乙氧基硅烷或双-[3-(三乙氧基)硅丙基]四硫化物。The silane coating according to claim 1, wherein said silane coupling agent is preferably γ-aminopropyltriethoxysilane or bis-[3-(triethoxy)silylpropyl]tetra Sulfide.
- 如权利要求1所述的硅烷涂料，其特征在于，所述硅烷涂料的烘干温度为20-200℃。The silane coating according to claim 1, wherein the silane coating has a drying temperature of 20 to 200 °C.
- 一种金属工件表面涂覆方法，其包括下列步骤：配制如权利要求1-7任一项所述的硅烷涂料；将金属工件浸入、刷涂、喷涂涂料溶液中，经过预定时间、温度干燥。A metal workpiece surface coating method comprising the steps of: formulating a silane coating according to any one of claims 1 to 7; immersing, brushing, spraying a metal workpiece in a coating solution, and drying it for a predetermined time and at a temperature.
- 一种金属工件，其特征在于，所述金属工件表面通过如权利要求9所述的金属工件表面涂装处理方法形成有涂层。 A metal workpiece characterized in that the metal workpiece surface is formed with a coating by the metal workpiece surface coating treatment method according to claim 9.
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| PCT/CN2017/091295 WO2019000441A1 (en) | 2017-06-30 | 2017-06-30 | Silane coating, metal workpiece and coating treatment method thereof |
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