Ionic liquid-containing laminate and method for producing same

一种离子液体、层叠体的技术，应用在含有离子液体的层叠体及其制造领域，能够解决没有离子液体记载等问题，达到控制气体透过性、抑制发粘、操作性优异的效果

Active Publication Date: 2019-12-31
DAICEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there is no mention of ionic liquids in this literature

Method used

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  • Ionic liquid-containing laminate and method for producing same
  • Ionic liquid-containing laminate and method for producing same
  • Ionic liquid-containing laminate and method for producing same

Examples

Experimental program
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Effect test

preparation example Construction

[0081] The method for producing such a porous film of thermoplastic resin is not particularly limited, and conventional methods, such as a method using phase separation of a resin solution, a method of stretching a resin film, or irradiating a resin film with high-energy rays such as α-rays, can be used. method etc. to prepare.

[0082] In addition, in order to adjust the wettability (or contact angle) of the liquid (A) containing the ionic liquid, the IL-incompatible porous layer (B) can be subjected to a conventional surface treatment (for example, JP-A-6-9810 The treatment described in , that is, the treatment of attaching a cross-linked body derived from an ethylenically unsaturated monomer having a fluoroalkyl group, etc.).

[0083] Commercially available products can be used as the IL-incompatible porous layer (B), and examples thereof include "C-pore" manufactured by Ube Maxell Co., Ltd., "U-Pore" manufactured by Ube Industries Co., Ltd., and "U-Pore" manufactured by Me...

Embodiment 1

[0148] The above-mentioned alumina particles were mixed with water to prepare an alumina particle dispersion (alumina particle slurry) having a concentration of 8 to 10% by weight. On the PE porous membrane as the IL non-affinity porous layer (B), the obtained alumina particle slurry was coated by wire bar coating, and dried at 100°C for 1 minute to form an IL affinity layer (B). And the porous layer (C). The alumina particle slurry was applied so that the dried IL-affinity porous layer (C) had a thickness of 5 μm. Using the obtained IL-free laminate, the permeability of the ionic liquid was evaluated. It should be noted that the ionic liquid was dripped on the IL-affinity porous layer (C) side of the fixed IL-free laminate, and on the opposite side of the dripped surface (IL-non-affinity porous layer (B) side) was decompressed.

Embodiment 2

[0150] In addition to adding 1% by weight of isopropyl alcohol (IPA) to the aluminum oxide particle dispersion liquid, and using Durapel as the IL non-affinity porous layer (B), the same as the example 1 A laminate not containing IL was prepared in the same manner, and the permeability of the ionic liquid to the obtained laminate not containing IL was evaluated.

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Abstract

An ionic liquid-containing laminate includes a porous layer having affinity with ionic liquids (C), said layer holding an ionic liquid-containing liquid (A) within voids therein, and a porous layer lacking affinity with ionic liquids (B). The porous layer having affinity with ionic liquids (C) may include an inorganic material (e.g., metal oxide particles having an average particle size of 0.001 to 10 [mu]m on a number basis). The ionic liquid-containing liquid (A) may include an ionic liquid containing cations selected from ammonium, imidazolium and phosphonium cations, and anions selected from fluorine-containing anions, cyano-containing anions and amino acid-derived anions. The porous layer having affinity with ionic liquids (C) may include 1 to 100 volume parts of the ionic liquid-containing liquid (A) with respect to 100 volume parts of voids therein. The ionic liquid-containing laminate is easily formable, and is able to stably hold (or fix) the ionic liquid while maintaining said liquid in a liquid state.

Description

technical field [0001] The present invention relates to an ionic liquid-containing laminate capable of stably holding (or immobilizing) an ionic liquid having a gas separation function and the like, and a method for producing the same. Background technique [0002] Ionic liquids are composed of cations and anions, and are known as substances that exist in liquid form at normal temperature and pressure. They are different from existing solvents in terms of their high thermal stability (or flame retardancy), high electrochemical stability, and low volatility. The specificity of the feature has attracted attention. In addition, ionic liquids can adjust various characteristics by appropriately selecting cationic species and anionic species and combining them, so their development in various applications such as electrochemical devices, separation and purification materials, and reaction solvents has been studied. . Among them, the development of separation and purification mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D69/00B01D61/38B01D69/10B01D69/12B32B5/32
CPCB01D61/38B01D69/00B01D69/10B01D69/12B32B5/32B01D67/0046B01D67/0079B01D69/02B01D71/025B01D71/26B01D2325/12B01D53/228B01D2257/504B01D2323/226B01D67/00791B01D71/261B01D67/0088B01D69/148B01D69/1216B01D69/108B01D71/262
Inventor 中村敏和岩谷真男铃木崇将后藤友寻
Owner DAICEL CORP
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