Temperature sensor element
A temperature sensor and component technology, applied in thermometers, electrical components, resistors with negative temperature coefficients, etc., can solve problems such as thermistor hardness
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manufacture example 1
[0178] (Manufacturing Example 1: Preparation of dedoped polyaniline)
[0179] The dedoped polyaniline is prepared by preparing hydrochloric acid doped polyaniline and dedoping it as shown in the following [1] and [2].
[0180] [1] Preparation of polyaniline doped with hydrochloric acid
[0181] 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.
[0182] 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 aqueous solution was added dropwise to the first aqueous solution at a rate of 5.3 mL / min while stirring at the same temperature. . After the dropwise addition, the reacti...
manufacture example 2
[0189] (Manufacturing example 2: Preparation of matrix resin 1)
[0190] 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).
[0191] 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 .
[0192]
manufacture example 3
[0193] (Manufacturing example 3: Preparation of matrix resin 2)
[0194] 4,4'-bis(4-aminophenoxy)biphenyl (BAPB) represented by the following formula (6) and 1,4-bis(4-amino) represented by the following formula (7) were used as diamines -α,α-Dimethylbenzyl)benzene (BiSAP), using 1,2,4,5-cyclohexanetetracarboxylic dianhydride (HPMDA) represented by the following formula (8) as tetracarboxylic dianhydride ). Then, make the molar ratio of BAPB:BiSAP:HPMDA 0.5:0.5:1, except that, obtain the polyimide solution according to the description of Synthesis Example 2 of JP-A-2016-186004, according to JP-A-2016 The polyimide powder was obtained as described in Example 2 of the -186004 publication.
[0195] The said powder was dissolved in (gamma)-butyrolactone so that the density|concentration might become 8 mass %, and the polyimide solution (2) was prepared. In the following examples, the polyimide solution (2) was used as the matrix resin 2 .
[0196]
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