Anti-flash corrosion composition, water-based anti-flash corrosion coating and application
A water-based coating and anti-flash corrosion agent technology, which is applied in the field of anti-flash corrosion compositions and water-based anti-flash corrosion coatings, can solve problems such as metal flash corrosion, and achieve the effects of preventing flash corrosion, high adhesion, and improving the effect
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[0044] In some embodiments, the preparation method of the reduced graphene oxide-polyaniline composite comprises the following steps:
[0045] S1. Dispersing graphene oxide in water to obtain a graphene suspension; adding aniline to a dilute acid solution to form a dilute acid aniline mixed solution; dissolving the oxidant in the dilute acid solution to obtain a dilute acid mixed solution of the oxidant;
[0046] S2. Mix the graphene suspension obtained in step S1 with the dilute acid aniline mixture, and add the oxidant dilute acid mixture obtained in step S1, and obtain the first product after reaction;
[0047] S3. After adding lye to the first product obtained in step S2 to adjust the pH value, and then adding a reducing agent for reaction, the reduced graphene oxide-polyaniline composite can be obtained.
[0048] Wherein, graphene oxide is prepared by Hummers method, Staudemaier method, electrochemical method or Brodie method without reduction treatment.
[0049] In term...
Embodiment 1
[0054] Embodiment 1 prepares polymer anti-flash corrosion agent
[0055] The synthesis process of the anti-flash corrosion agent is as follows: add 200mL toluene in a four-neck flask as a solvent, add 20g of maleic anhydride and 20g of styrene, add 1g of initiator azobisisobutyronitrile, and heat in a water bath under mechanical stirring. React at 80°C for 24 hours. Then cool down to room temperature, collect the product and dry it, then add NaOH solution, keep the reaction at 60°C for 40 minutes, cool down to room temperature to obtain the anti-flash corrosion agent. The molecular weight measured by gel permeation chromatography (the brand is RID 20 type of Shimadzu company) is about 3000-80000.
Embodiment 2
[0056] Embodiment 2 prepares polymer anti-flash corrosion agent
[0057] The synthesis process of the anti-flash corrosion agent is as follows: Add water into a four-necked bottle as a solvent, add 20g of acrylic acid and 20g of styrene, add 1g of initiator ammonium persulfate, heat in a water bath under mechanical stirring, and react at 80°C for 24 hours . Then cool down to room temperature, collect the product and dry it, then add NaOH solution, keep the reaction at 60°C for 40 minutes, cool down to room temperature to obtain the anti-flash corrosion agent. The molecular weight measured by gel permeation chromatography (the brand is RID 20 type of Shimadzu company) is about 3000~80000.
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