Pore forming substance for reticular porous material and preparation method thereof

A mesh-like porous and pore-forming agent technology, applied in the field of materials, can solve the problems of easy aggregation of micelles, damage to porous materials, and difficulty in control, and achieve the effects of strong hydrophilicity, increased specificity, and reduced risk

Active Publication Date: 2017-04-19
安徽誉望之子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the porous materials prepared by the soft template method are mostly difficult to control with a pore size distribution between 1nm and 1μm, and the micelles are easy to agglomerate to form larger pores, making it difficult to obtain a network porous structure.
At the same time, more polyether block polymers are currently used in the soft template method, and the price of raw materials is relatively high, requiring hundreds of yuan per kilogram, which can only be borne by laboratories or high-return industries.
In terms of technology, when removing the soft template, the commonly used methods are high-temperature calcination, or extraction with strong acid and strong alkali. These methods will not only cause certain damage to the structure of the porous material, but also pose certain dangers to the technicians involved in the operation. sex

Method used

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  • Pore forming substance for reticular porous material and preparation method thereof
  • Pore forming substance for reticular porous material and preparation method thereof
  • Pore forming substance for reticular porous material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A pore-forming agent for reticular porous materials, the molecular structural formula of the pore-forming agent is as follows:

[0036]

[0037] where: R 1 , R 2 , R 3 , R 4 It is polyoxyethylene ether or diisooctyl phosphate linked to the parent, and polyoxyethylene ether and diisooctyl phosphate must exist simultaneously in each pore-forming agent molecule.

[0038] A method for preparing a pore-forming agent for reticular porous materials, using sorbitan as the matrix structure, grafting polyoxyethylene ether on some of its hydroxyl groups through reaction, and then adding hydrophobic groups to react with the remaining hydroxyl groups, thereby Obtain the pore-forming agent that is used for preparing mesh porous material, concrete steps are as follows:

[0039] In the first stage, mix sorbitan and polyoxyethylene ether, add 3.0% sodium hydroxide by mass of the mixture as a catalyst, and stir and react in an oil bath at 120°C for 9 hours;

[0040] In the second...

Embodiment 2

[0043] A pore-forming agent for reticular porous materials, the molecular structural formula of the pore-forming agent is as follows:

[0044]

[0045] where: R 1 , R 2 , R 3 , R 4It is polyoxyethylene ether or myristyl alcohol linked to the parent body, and polyoxyethylene ether and myristyl alcohol must exist simultaneously in each pore-forming agent molecule.

[0046] A method for preparing a pore-forming agent for reticular porous materials, using sorbitan as the matrix structure, grafting polyoxyethylene ether on some of its hydroxyl groups through reaction, and then adding hydrophobic groups to react with the remaining hydroxyl groups, thereby Obtain the pore-forming agent that is used for preparing mesh porous material, concrete steps are as follows:

[0047] In the first stage, mix sorbitan and polyoxyethylene ether, add 2.0% of the mass of the mixture of sodium hydroxide as a catalyst, and stir and react in an oil bath at 140°C for 9.5 hours;

[0048] In the s...

Embodiment 3

[0051] A pore-forming agent for reticular porous materials, the molecular structural formula of the pore-forming agent is as follows:

[0052]

[0053] where: R 1 , R 2 , R 3 , R 4 It is polyoxyethylene ether or decyl alcohol linked to the parent, and polyoxyethylene ether and decyl alcohol must exist simultaneously in each pore-forming agent molecule.

[0054] A method for preparing a pore-forming agent for reticular porous materials, using sorbitan as the matrix structure, grafting polyoxyethylene ether on some of its hydroxyl groups through reaction, and then adding hydrophobic groups to react with the remaining hydroxyl groups, thereby Obtain the pore-forming agent that is used for preparing mesh porous material, concrete steps are as follows:

[0055] In the first stage, mix sorbitan and polyoxyethylene ether, add 2.5% sodium hydroxide by mass of the mixture as a catalyst, and stir and react in an oil bath at 140°C for 9 hours;

[0056] In the second stage, decyl ...

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PUM

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Abstract

The invention discloses a pore forming substance for a reticular porous material and a preparation method thereof. The molecular structural formula of the pore forming substance is as shown in the description, wherein R1, R2, R3 and R4 are polyoxyethylene ether or hydrophobic groups linked to a parent, and the polyoxyethylene ether and hydrophobic groups must be present in every pore forming substance molecule at the same time. By taking sorbitan as a parent structure, the pore forming substance of the reticular porous material is prepared by introducing the hydrophobic groups and polyoxyethylene ether on hydroxyl through reactions. The selecting range of reaction raw materials is expanded by virtue of the method, and meanwhile, various functional groups can be introduced, so that the specificity of the pore forming substance is increased; the pore forming mode is a micelle occupying method. In a process of removing micelle in the pore forming substance, the pore forming substance only needs to be simply soaked in pure water, so that the requirements on energy conservation and environmental protection are satisfied.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to the preparation and application of a novel pore-forming agent, in particular to a pore-forming agent for mesh porous materials and a preparation method thereof. Background technique [0002] Due to the rich pore structure and large specific surface area on the surface of porous materials, porous materials are often used as adsorption materials, such as common poisonous gas filter devices; at the same time, porous materials after carbonization have high chemical stability and can be used for making Carriers of chemical catalysts; because carbon materials are conductive, and the charge and discharge times have little effect on service life, carbonized porous materials are often used as excellent electrode materials, especially for emerging supercapacitors, porous carbon electrodes are more It has the advantages of low price and long life. [0003] The current pore-forming technolo...

Claims

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Application Information

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IPC IPC(8): C08G65/331C08G65/335C08G65/332H01G11/24H01G11/32
CPCY02E60/13C08G65/3318C08G65/3312C08G65/3322C08G65/3353H01G11/24H01G11/32
Inventor 高延敏陈亮左银泽姜文龙赵君谭力
Owner 安徽誉望之子科技有限公司
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