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Polyorganosiloxane, polyorganosiloxane composition, cured product, polyorganosiloxane-containing electrolytic solution for electrolytic capacitor, and electrolytic capacitor using same

A polyorganosiloxane, silicon bonding technology, applied in the direction of electrolytic capacitors, capacitors, circuits, etc., can solve problems such as difficulty in developing electrolytic capacitors and reduction in withstand voltage of electrolytic capacitors

Pending Publication Date: 2019-07-30
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in general, as the conductivity of the electrolytic solution used increases, the withstand voltage of an electrolytic capacitor tends to decrease, which makes it difficult to develop an electrolytic capacitor (Non-Patent Document 4)

Method used

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  • Polyorganosiloxane, polyorganosiloxane composition, cured product, polyorganosiloxane-containing electrolytic solution for electrolytic capacitor, and electrolytic capacitor using same
  • Polyorganosiloxane, polyorganosiloxane composition, cured product, polyorganosiloxane-containing electrolytic solution for electrolytic capacitor, and electrolytic capacitor using same
  • Polyorganosiloxane, polyorganosiloxane composition, cured product, polyorganosiloxane-containing electrolytic solution for electrolytic capacitor, and electrolytic capacitor using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0411] The present invention will be specifically described below through examples, but the present invention is not limited thereto. In addition, the materials used in the examples and the measurement methods of the evaluation items are as follows. Parts and % in Examples are based on mass unless otherwise specified.

[0412] [Evaluation I: Examples 1-1 to 1-5, Comparative Examples 1-1 to 1-6]

[0413] [test methods]

[0414] 1. Determination of the number of reactive functional groups in polyorganosiloxane

[0415] Weigh 50 mg of polyorganosiloxane as a measurement object, accurately weigh and add 15 mg of toluene as an internal standard. Further, add 1g of heavy chloroform to dissolve, use 400MHz 1 H-NMR (AL-400 manufactured by JEOL Ltd.) was measured by setting the relaxation delay (Relaxation Delay) to 20 seconds. From the ratio of the signal intensity of each component to the signal intensity of the internal standard toluene, and the weighed value, the content of al...

Embodiment 2-1～2-22

[0519] [Evaluation II: Examples 2-1 to 2-22, Comparative Examples 2-1 to 2-11]

[0520] [test methods]

[0521] 1. Determination of the number of reactive functional groups in polyorganosiloxane

[0522] The measurement of the number of reactive functional groups in the polyorganosiloxane was performed by the same method as above.

[0523] 2. 29 Measuring method of Si-NMR

[0524] By the same method as above, carry out 29 Determination of Si-NMR.

[0525] 3. Determination of molecular weight

[0526] The molecular weight was measured by the same method as above.

[0527] 4. Determination of Refractive Index

[0528] 4-1. Refractive index measurement of a liquid sample before curing: The refractive index at the sodium D line wavelength was measured at 20° C. using an automatic refractometer (Refractometer RX-7000α) manufactured by Atago Corporation.

[0529] 4-2. Refractive index measurement of cured product:

[0530] Measuring method 1. Using multi-wavelength Abbe ref...

Synthetic example 2-1

[0587] [Synthesis Example 2-1] Synthesis method of polyorganosiloxane

[0588] As polyorganosiloxane raw materials, 22 g of methyl silicate MS51 manufactured by Mitsubishi Chemical Corporation, 263 g of 3-methacryloxypropyltrimethoxysilane KBM503 manufactured by Shin-Etsu Chemical Co., Ltd., and 56 g of Hexamethasone manufactured by Nusil Technology Co., Ltd. were used. Hydrolytic condensation was carried out while maintaining 15°C to 40°C using 170 g of toluene and 170 g of methanol as a solvent, a mixture of 81 g of 1N hydrochloric acid and 81 g of methanol as a catalyst, and water. Thereafter, after removing hydrochloric acid by desalination, the solvent and moisture were removed, and 221 g of the target liquid polyorganosiloxane was obtained by filtration.

[0589] Although using a common method and an inexpensive raw material, it can be obtained at a high yield of 65% by mass relative to the total amount of the above-mentioned polyorganosiloxane raw materials, and variabl...

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Abstract

Provided are a polyorganosiloxane having high elasticity, high strength, excellent dimensional stability, and the like; an electrolytic solution which is for an electrolytic capacitor and contains thepolyorganosiloxane; and an electrolytic capacitor using the electrolytic solution. The polyorganosiloxane contains 10 mol% or more of an M unit (R1 R2 R3 SiO1 / 2) with respect to total silicon and 80mol% or less of a T unit (R6 SiO3 / 2) with respect to total silicon, and has a silicon-bonded alkoxy group and silicon-bonded reactive functional groups other than the alkoxy group, the polyorganosiloxane being characterized in that the content of the silicon-bonded alkoxy group with respect to the total weight of the polyorganosiloxane is 0.07-4 wt%, the number of the silicon-bonded reactive functional groups is 3-12 per 1000 of the molecular weight of the polyorganosiloxane, and the weight loss of the polyorganosiloxane when heated at 110 DEG C for 2 hours under a reduced pressure of 0.15 torr is 5 wt% or less, wherein R1, R2, R3, and R6 are each independently a hydrogen atom, or an organic functional group other than an alkoxy group or hydroxyl group, and may be identical to or differentfrom each other.

Description

technical field [0001] The present invention relates to a polyorganosiloxane having a novel structure, especially a polyorganosiloxane having a structure suitable for optical members, and further relates to an electrolytic solution for an electrolytic capacitor containing a polyorganosiloxane, and an electrolytic capacitor using the polyorganosiloxane . Background technique [0002] Polyorganosiloxanes are used in many industries due to their high degree of design freedom and various functions. [0003] For example, Patent Document 1 discloses a polyorganosiloxane having a polyhedral structure, and proposes a polyorganosiloxane having improved moldability and the like in addition to heat resistance, light resistance, and chemical stability. [0004] In addition, Patent Document 2 discloses a silsesquioxane having a cage structure, which exhibits good low-temperature fluidity and is suitable for sealing semiconductors and the like. [0005] In addition, since plastic materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/18C08G77/12C08G77/20H01G9/035
CPCC08G77/12C08G77/18C08G77/20H01G9/035C08G77/06C08G77/70H01G9/045
Inventor 渡部拓海寺田宪章长坂刚古贺尚悟井上一真松村一成藤森尚美宫内博夫细川明美
Owner MITSUBISHI CHEM CORP
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