A polyaniline modified polycarboxy epoxy resin base material for metal surface treatment
A technology of metal surface treatment and epoxy resin, which is applied in the direction of epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problem of limited improvement of coating internal cohesion, interface bonding force, anti-corrosion performance, carboxylic acid compounds and epoxy resins. Resin grafting efficiency is low, it is difficult to obtain practical applications, etc., to achieve the effect of improving protection performance and service life, improving anti-corrosion performance, and improving construction performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0041] In this example, the raw materials of polycarboxy epoxy resin and isocyanate-grafted polyaniline were prepared by the following method, and other raw materials were commercially available.
[0042]In a four-necked flask equipped with a thermometer, a stirrer, and a condenser, 22.6 g of toluene diisocyanate (TDI) was dissolved with 300 ml of anhydrous toluene, and nitrogen protection was used; 42 g of E44 epoxy resin was dissolved with 90 ml of anhydrous toluene and moved into a constant current In the pressure drop funnel, under the conditions of room temperature, stirring and nitrogen protection, add the E44 epoxy resin solution dropwise to the TDI toluene solution at a rate of 35 drops / min, then react at room temperature for 2 hours, and then heat up to 120 ° C for 5 hours , Distilled under reduced pressure, removed unreacted TDI, obtained TDI modified epoxy resin, moved to the constant pressure dropping funnel under nitrogen protection, and added 60 milliliters of anh...
Embodiment 2
[0066] Prepare the polyaniline modified polycarboxy epoxy resin base material for metal surface treatment according to the following raw material ratio:
[0067] 60 parts of polycarboxy epoxy resin,
[0068] 25 parts of isocyanate grafted polyaniline,
[0069] Herotropine 0.5 parts
[0070] 7 parts tannic acid
[0071] 10 parts of toluene
[0072] The polycarboxy epoxy resin and isocyanate-grafted polyaniline in the above formula are prepared in Example 1, and other raw materials are commercially available. The components in the above formula were pre-dispersed and mixed evenly, and the material was ground to 60 μm in a paint grinder to obtain a polyaniline-modified polycarboxy epoxy resin base material that can be used for metal surface treatment.
[0073] Utilize the above-mentioned polyaniline modified polycarboxy epoxy resin base material for metal surface treatment to adopt the pretreatment coating test result prepared by air spray method as follows:
[0074] Appeara...
Embodiment 3
[0088] In this example, the raw materials of polycarboxy epoxy resin and isocyanate-grafted polyaniline were prepared by the following method, and other raw materials were commercially available.
[0089] In a four-neck flask equipped with a thermometer, a stirrer, and a condenser, dissolve 52 grams of isophorone diisocyanate (IPDI) with 400 ml of anhydrous isobutanol, and protect it under nitrogen; The 38g E44 epoxy resin of water dissolves and moves in the constant pressure dropping funnel, under room temperature, stirring and nitrogen protection condition, with the speed of 45 drop / min, E44 epoxy resin solution is added in IPDI anhydrous isobutanol solution, Then react at room temperature for 2 hours, heat up to 120°C for 4 hours, distill under reduced pressure, remove unreacted IPDI, obtain IPDI modified epoxy resin, move it to a constant pressure dropping funnel under nitrogen protection, and add 70 ml of Water N-Methylpyrrolidone. Add 31.5g of 1,3,5-benzenetricarboxylic...
PUM
| Property | Measurement | Unit |
|---|---|---|
| mechanical properties | aaaaa | aaaaa |
| mechanical properties | aaaaa | aaaaa |
| mechanical properties | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More