Temperature sensor element
A temperature sensor and component technology, applied in thermometers, electrical components, resistors with negative temperature coefficients, etc., can solve the problems of thermistor hardness
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manufacture example 1
[0175] (Manufacturing Example 1: Preparation of dedoped polyaniline)
[0176] The dedoped polyaniline is prepared by preparing hydrochloric acid-doped polyaniline and dedoping it as shown in the following [1] and [2].
[0177] [1] Preparation of polyaniline doped with hydrochloric acid
[0178] 5.18 g of aniline hydrochloride (manufactured by Kanto Chemical Co., Ltd.) was dissolved in 50 mL of water to prepare a first aqueous solution. Separately, 11.42 g of ammonium persulfate (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.) was dissolved in 50 mL of water to prepare a second aqueous solution.
[0179] Next, the first aqueous solution was stirred at 400 rpm for 10 minutes using a magnetic stirrer while the temperature of the first aqueous solution was adjusted to 35° C., and then the second solution was added dropwise to the first aqueous solution at a rate of 5.3 mL / min while stirring at the same temperature. aqueous solution. After the dropwise addition, th...
manufacture example 2
[0186] (Manufacturing example 2: Preparation of matrix resin 1)
[0187] According to the description of Example 1 of International Publication No. 2017 / 179367, 2,2'-bis(trifluoromethyl)benzidine (TFMB) represented by the following formula (3) was used as diamine, and tetracarboxylic 4,4'-(1,1,1,3,3,3-hexafluoropropane-2,2-diyl)diphthalic dianhydride (6FDA) represented by the following formula (4) of acid dianhydride ) to produce a polyimide powder having a repeating unit represented by the following formula (5).
[0188] The said powder was dissolved in propylene glycol 1-monomethyl ether 2-acetate so that the density|concentration might become 8 mass %, and the polyimide solution (1) was prepared. In the following examples, the polyimide solution (1) was used as the matrix resin 1 .
[0189]
manufacture example 3
[0190] (Manufacturing example 3: Preparation of matrix resin 2)
[0191] According to Example 5 of Japanese Patent Application Laid-Open No. 2018-119132, under a nitrogen atmosphere, 52 g (162.38 mmol) of TFMB represented by the above formula (3) and dimethylacetamide ( DMAc) 884.53 g, TFMB was dissolved in DMAc while stirring at room temperature.
[0192] Next, 17.22 g (38.79 mmol) of 6FDA represented by the above formula (4) was added to the flask, and stirred at room temperature for 3 hours.
[0193] Then, 4.80 g (16.26 mmol) of 4,4'-oxybis(benzoyl chloride) [OBBC] represented by the following formula (6) was added to the flask, followed by 19.81 g of terephthaloyl chloride (TPC) (97.57 mmol) was added to the flask and stirred at room temperature for 1 hour.
[0194] Next, 8.73 g (110.42 mmol) of pyridine and 19.92 g (195.15 mmol) of acetic anhydride were added to the flask, and after stirring at room temperature for 30 minutes, the temperature was raised to 70° C. using ...
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