Temperature indicating coating based on fluorescence temperature-sensitive characteristic and preparation method thereof

• Main Authors: JIANG PENG, ZHENG SHOUTAO, LI HONGYU, WANG TIEJUN
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention discloses a temperature indicating coating based on fluorescence temperature-sensitive characteristics. The coating comprises the following components in percentage by mass: less than or equal to 3% of Tb < 3 + > and more than or equal to 97% of Y2SiO5. The invention also discloses a method for preparing the temperature indicating coating based on the fluorescence temperature-sensitive characteristic. The method comprises the following steps: mixing and stirring tetraethoxysilane, isopropanol, nitric acid and water to obtain a first mixed solution; mixing an isopropanol solution in which yttrium nitrate hexahydrate is dissolved into the first mixed solution, and stirring to obtain a second mixed solution; mixing an isopropanol solution dissolved with terbium chloride hexahydrate into the second mixed solution to obtain a third mixed solution; and drying and ball-milling the third mixed solution to obtain the temperature indicating coating based on the fluorescence temperature-sensitive character