Temperature indicating patch for electrical equipment and preparation method of patch
A technology for electrical equipment and temperature display, applied to thermometers, parts of thermometers, thermometers with physical/chemical changes, etc., to achieve the effects of protecting the environment from corrosion, simple preparation, and strong water absorption
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[0026] The invention also discloses a method for preparing a temperature-indicating patch for electrical equipment, which includes the following steps:
[0027] a. Fully dissolve the leuco agent and the color developer in the solvent;
[0028] b. Immerse the white water-absorbing substrate in the solvent;
[0029] c. Cover the sealing surface on the sealing surface of the white water-absorbing substrate;
[0030] In this embodiment, in step a, the solvent is a solid. The solid solvent is firstly heated and melted, mixed evenly with the leuco agent and the color developer, and then immersed in the water-absorbing substrate. After the water-absorbing substrate is fully infiltrated, the temperature is displayed and cooled. The operation is simple and easy to use, which can solve the problem that the electronic donor-like color-changing material becomes liquid after discoloration and is inconvenient to apply, enhances the weather resistance of the temperature-indicating material,...
Embodiment 1
[0032] Preparation of temperature-indicating materials: raw materials: crystal violet lactone: boric acid: polyethylene wax. Specific steps are as follows:
[0033] S1: Weigh 50 parts of polyethylene wax in a beaker and heat it to 96°C until it is completely melted;
[0034] S2: Weigh 1 part of crystal violet lactone and 2 parts of boric acid into the solvent melted in the previous step, and heat and stir at 96°C for 10 minutes;
[0035] S3: Naturally cool the above mixture to room temperature to obtain a material showing a temperature of 90°C.
[0036] A method for preparing a temperature-indicating patch. Specific steps are as follows:
[0037] S1: Weigh a certain amount of polyimide for film blowing to obtain two 5*5cm sealing layer films;
[0038] S2: Weigh the polyacrylate, catalyst and cross-linking agent into the reactor, heat and dissolve, stir evenly and set aside;
[0039] S3: Cut the rice paper into a size of 4*4cm, immerse it in the heated and melted temperatu...
Embodiment 2
[0044] S1: Weigh 70 parts of polyethylene wax in a beaker and heat it to 96°C until it is completely melted;
[0045] S2: Weigh 1 part of crystal violet lactone and 2 parts of boric acid into the solvent melted in the previous step, and heat and stir at 96°C for 10 minutes;
[0046] S3: Naturally cool the above mixture to room temperature to obtain a material showing a temperature of 90°C.
[0047] S4: Prepare the temperature-indicating material obtained in the previous step into a temperature-indicating patch, and the specific steps are the same as in Example 1.
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