Preparation method for photo-thermal degradable coating material

• Main Authors: XU ZUSHUN, CHEN XU, CHEN JUN
• Format: Patent
• Language: Chinese; English
• Published: 27.08.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses a preparation method for a photo-thermal degradable coating material. The preparation method comprises the steps that coumarin is dissolved into acetonitrile to obtain an acetonitrile solution of the coumarin; aniline is dissolved into acetonitrile to obtain an acetonitrile solution of the aniline; the acetonitrile solution of the coumarin is mixed with the acetonitrile solution of the aniline in a ratio of 2:1, stirring is conducted for 4 hours at the room temperature in a two-neck flask, and a simple photo-thermal eutectic material is obtained; diisocyanate and polycarbonate polyol are dissolved into acetone. The photo-thermal degradable coating material is synthesized and modified with a photo-thermal material; through illumination, the photo-thermal degradable coating material can be made to generate a certain amount of heat to accelerate degradation of the photo-thermal degradable coating material, and the photo-thermal degradable coating material is excellent in slow-release and