High molecule electric resistance type humidity sensitive element with super-branched structure and manufacturing method thereof
A technology of humidity sensitive element and manufacturing method, which is applied in the direction of material resistance, etc., can solve problems such as difficulty in measuring low humidity environment, difficulty in measuring high resistance, difficulty in ion migration, etc., achieve fast moisture absorption and dehumidification response speed, short response time, high Effect of Moisture Sensitivity
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Embodiment 1
[0031] 1) cleaning the surface photolithography and evaporating the ceramic substrate with interdigitated gold electrodes, and drying for later use;
[0032] 2) In the 100 ml three-necked flask after dehydration and deoxygenation treatment, add 10 grams of hyperbranched compound H20 with structure (I), 10 grams of succinic anhydride, 0.2 grams of SnCl 2 , 30 ml of dioxane, argon for 30 minutes, then heated up to 120 ° C, stirred and reacted for 36 hours under the protection of argon to obtain a transparent viscous liquid, named H20-COOH.
[0033] 3) Add 20 grams of 3-dimethylamino-1-propanol, 30 grams of n-bromobutane, and 80 milliliters of acetone to the 250 milliliter three-necked flask after dehydration and deoxygenation treatment, stir well, and pass argon for 30 Minutes, then heated to 40°C, stirred and reacted for 36 hours under argon protection, a large amount of white precipitate was obtained, vacuum filtered, washed several times with acetone, vacuum dried overnight a...
Embodiment 2
[0037] 1) cleaning the surface photolithography and evaporating the ceramic substrate with interdigitated gold electrodes, and drying for later use;
[0038] 2) In the 100 ml three-necked flask after the water and oxygen removal treatment, add 12 grams of hyperbranched compound H20 with structure (I), 12 grams of succinic anhydride, 0.24 grams of SnCl 2 , 30 ml of dioxane, argon for 30 minutes, then heated up to 120 ° C, stirred and reacted for 36 hours under the protection of argon to obtain a transparent viscous liquid, named H20-COOH.
[0039] 3) Add 26 grams of 3-dimethylamino-1-propanol, 34 grams of n-bromobutane, and 80 milliliters of acetone in the 250 milliliter three-neck flask after dehydration and deoxygenation treatment, stir well, and pass argon gas for 30 Minutes, then heated up to 40°C, stirred and reacted for 36 hours under the protection of argon, a large amount of white precipitate was obtained, vacuum filtered, washed several times with acetone, vacuum dried...
Embodiment 3
[0043] 1) cleaning the surface photolithography and evaporating the ceramic substrate with interdigitated gold electrodes, and drying for later use;
[0044] 2) In the 100 ml three-necked flask after dehydration and deoxygenation treatment, add 20 grams of hyperbranched compound H20 with structure (I), 20 grams of succinic anhydride, 0.4 grams of SnCl 2 , 60 ml of dioxane, argon for 30 minutes, then heated up to 120 ° C, stirred and reacted for 48 hours under the protection of argon to obtain a transparent viscous liquid, named H20-COOH.
[0045] 3) Add 30 grams of 3-dimethylamino-1-propanol, 40 grams of n-bromobutane, and 100 milliliters of acetone to the 250 milliliter three-neck flask after dehydration and deoxygenation treatment, stir well, and pass argon for 30 Minutes, then raised the temperature to 60°C, stirred and reacted for 36 hours under the protection of argon, and obtained a large amount of white precipitate, which was vacuum filtered, washed several times with a...
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