Method for repairing scratches on water-solution thermoplastic resin coating through light
A thermoplastic resin and photorepair technology, applied in coatings, polyester coatings, etc., can solve problems such as affecting the appearance, difficult to repair, and high cost, and achieve the effects of improving service life and performance, huge application prospects, and wide usability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0020] Embodiment 1: This embodiment is a method for lightly repairing scratches on a water-soluble thermoplastic resin coating, which is specifically carried out according to the following steps:
[0021] Use laser irradiation to repair scratches on water-soluble thermoplastic resin coatings; the width of the scratches is less than 1mm; the light intensity of the laser is 500W / cm 2 ~5000W / cm 2 ; The spot diameter of the laser is greater than 1.2 times the width of the scratch and less than 2 times the width of the scratch; the wavelength of the laser is 480 nm to 610 nm;
[0022] Described water-soluble thermoplastic resin coating is prepared according to the following steps:
[0023] First, the preparation of gold nanoparticles: the mass fraction of 1% HAuCl 4 The aqueous solution is added to deionized water, stirred to boiling under the conditions of a rotating speed of 250 rpm and a temperature of 99 ℃, and a mass fraction of 1% sodium citrate aqueous solution is added u...
specific Embodiment approach 2
[0024] 2. Preparation of coating: uniformly mix the spherical gold nanoparticle solution obtained in step 1 with the water-soluble thermoplastic resin, stir for 3 min under the condition of a rotating speed of 300 rpm, and ultrasonically vibrate for 30 s to obtain the water-soluble thermoplastic resin; spraying method, doctor blade coating method Or evenly coat the water-soluble thermoplastic resin on the base material by the bar coating method, place it in an oven and heat it for 10 to 20 minutes at a temperature of 80 °C, and then heat it up from 80 °C to 110 °C, under the condition of a temperature of 110 °C Heating for 10min~20min at low temperature; heating from 110℃ to 140℃, heating for 10min~20min under the condition of temperature of 140℃, heating from 140℃ to 5℃ higher than the boiling point of the solvent with the highest boiling point in the water-soluble thermoplastic resin, when the temperature is high Heat for 30min under the condition that the boiling point of th...
specific Embodiment approach 3
[0025] Embodiment 3: The difference between this embodiment and one of Embodiments 1 to 2 is that the wavelength of the laser is 510 nm to 540 nm. Others are the same as one of Embodiments 1 to 2.
PUM
| Property | Measurement | Unit |
|---|---|---|
| wavelength | aaaaa | aaaaa |
| wavelength | aaaaa | aaaaa |
| glass transition temperature | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More