Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparing method of pH control porous material for oil/water separation

A technology of porous material and water phase is applied in the field of preparation of porous materials to achieve the effects of low material density, mild reaction conditions and simple operation.

Active Publication Date: 2018-09-21
EAST CHINA JIAOTONG UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, such studies have rarely reported

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparing method of pH control porous material for oil/water separation
  • Preparing method of pH control porous material for oil/water separation
  • Preparing method of pH control porous material for oil/water separation

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0031] A preparation method of a porous material used for oil / water separation by pH regulation, the porous material in this embodiment is a porous structure with uniform distribution of pores; a preliminary porous material containing epoxy groups is obtained by high internal phase emulsion polymerization, and the porous material containing epoxy groups is obtained by containing The porous material is prepared by the ring-opening reaction of the tertiary amino compound and the epoxy group of the preliminary porous material.

[0032] The schematic diagram of the preliminary porous material synthesis in this example is as follows figure 1 shown.

[0033] The schematic diagram of porous material obtained by functionalization in this embodiment is as follows figure 2 shown.

[0034] The preparation method of the porous material and the functionalized porous material of the present embodiment is as follows:

[0035] In the reactor, the first monomer glycidyl methacrylate (cont...

Embodiment 1

[0038] In the reactor, the first monomer glycidyl methacrylate and the second monomer styrene (the molar ratio of glycidyl methacrylate to styrene is 50:50), a certain proportion of toluene (50% in The total mass of the first monomer and the second monomer), the crosslinking agent (5% in the total moles of the first monomer and the second monomer) and the emulsifier (20% in the total mass of the organic phase) are mixed uniformly at 350r Under the rotating speed of / min, initiator (2% is in the total mass of the first monomer and the second monomer) and CaCl 2 (1% in the mass of the aqueous phase) composed of an aqueous phase (the volume ratio of the aqueous phase to the organic phase is 90:10) was added dropwise to the reactor. After the dropwise addition, adjust the speed to 700r / min, stir for 30 minutes, transfer the emulsion system to a fixed container, seal it, and react at 60°C for 12h. The porous material is obtained by immersing and washing in deionized water, followe...

Embodiment 2

[0043] In the reactor, the first monomer glycidyl methacrylate and the second monomer styrene (the molar ratio of glycidyl methacrylate to styrene is 70:30), a certain proportion of toluene (50% in The total mass of the first monomer and the second monomer), the crosslinking agent (10% in the total moles of the first monomer and the second monomer) and the emulsifier (20% in the total mass of the organic phase) are mixed uniformly at 350r Under the rotating speed of / min, initiator (2% is in the total mass of the first monomer and the second monomer) and CaCl 2 (1% in the mass of the aqueous phase) composed of an aqueous phase (the volume ratio of the aqueous phase to the organic phase is 90:10) was added dropwise to the reactor. After the dropwise addition, adjust the speed to 700r / min, stir for 30 minutes, transfer the emulsion system to a fixed container, seal it, and react at 60°C for 12h. Deionized water immersion washing followed by ethanol immersion washing to obtain a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
Login to View More

Abstract

Provided is a preparing method of a pH control porous material for oil / water separation. The method includes the steps of preparing a primary porous material through high inner-phase emulsion polymerization, and then preparing the pH control porous material for oil / water separation through functionalization. The porous material is prepared with glycidyl methacrylate as the first monomer and styrene as the second monomer through high inner-phase emulsion polymerization and compound functionalization. The prepared porous material can selectively and effectively adsorb oil or organic solvents from water by adjusting the pH under the pH larger than or equal to 7; the oil or organic solvents can be released under the pH smaller than 6, and it is shown that the porous material has performance ofselectively adsorbing and releasing the oil or organic solvents.

Description

technical field [0001] The invention relates to a preparation method of a porous material used for oil / water separation through pH control, and belongs to the technical field of intelligent materials. Background technique [0002] In recent years, the leakage of crude oil and organic matter has occurred frequently, causing major damage to the environment and ecology. For crude oil and other organic matter leaked into water bodies, the common treatment methods are microbial decomposition, burning, adsorption with straw, hair, activated carbon, etc., or dispersing organic matter such as oil with dispersants. Among these methods, the application of adsorbents is considered to be one of the most promising techniques because of convenience, low cost, high efficiency, and no secondary pollution. [0003] In general, granular or powdery materials tend to aggregate, resulting in reduced active surface area, which affects adsorption efficiency and capacity. Additionally, it is diff...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/40C08F220/32C08F212/08B01J20/26C02F1/28C02F1/40B01J20/30C02F101/32C02F101/36C02F101/34
CPCB01J20/264C02F1/285C02F1/40C02F2101/32C02F2101/34C02F2101/36C08F220/32C08F220/325C08J9/40C08J2333/14C08F212/08
Inventor 郭赞如顾宏剑陈强杨萧萧曾素云
Owner EAST CHINA JIAOTONG UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com