Rapid cationic polymerization method for preparation of hydrophobic oleophylic composite material and application

A technology of cationic polymerization and composite materials, which is applied in the field of rapid cationic polymerization to prepare hydrophobic and lipophilic composite materials. Recycling oil and other problems to achieve good regeneration performance

Active Publication Date: 2016-11-09
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional adsorbents used in people's beds mainly include activated carbon, wood wool, polypropylene fiber, and adsorbent resins, etc., but traditional oil-absorbing materials generally have the following problems: 1: The adsorption capacity is relatively small, and can only absorb several times its own weight or More than ten times the amount of oil; 2: Traditional oil-absorbing materials will also absorb water while absorbing oil, which affects the absorption of oil; 3: Difficult to desorb and cannot effectively recover oil

Method used

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  • Rapid cationic polymerization method for preparation of hydrophobic oleophylic composite material and application
  • Rapid cationic polymerization method for preparation of hydrophobic oleophylic composite material and application
  • Rapid cationic polymerization method for preparation of hydrophobic oleophylic composite material and application

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A method for preparing hydrophobic and lipophilic composite materials by rapid cationic polymerization, comprising the following steps:

[0027] S1: Polyurethane sponge modification, add 1g of polyurethane sponge to 60ml of n-hexane solvent, and add 2ml of octadecyltrichlorosilane dropwise, stir in water bath at room temperature for 24h, take out after water bath and blow dry with N2 for use;

[0028] S2: Ultrasonic treatment, put 0.5g of modified polyurethane sponge into a 200ml round bottom flask, then add 100ml of n-hexane organic solvent, then add 100ul of boron trifluoride ether initiator, after ultrasonication for 1-2min, add divinyl The benzene monomer continued to react ultrasonically for about 30 minutes;

[0029] S3: Drying, take out the product in S2 with tweezers, rinse with absolute ethanol three times, put it in an oven for 20 minutes, and take it out to obtain a hydrophobic and lipophilic composite material.

Embodiment 2

[0031] The method for preparing PDVB by rapid cationic polymerization involved in step S2 in Example 1 comprises the following steps, using n-hexane as an organic solvent, boron trifluoride ether as an initiator, adding divinylbenzene monomer after ultrasonication for a while, and then A large amount of one-dimensional nanomaterial PDVB can be obtained by continuing the ultrasonic reaction at 30°C. The divinylbenzene monomer is passed through a basic Al2O3 column to remove the tert-butylcatechol polymerization inhibitor present in the monomer.

Embodiment 3

[0033] The oil-absorbing performance test of the hydrophobic-lipophilic composite material prepared in Example 1, the hydrophobic-lipophilic composite material is used as an adsorbent for oily wastewater, and the contact angle of the polyurethane sponge is increased from 90° to 127° by a contact angle measuring instrument . Take 0.05g of hydrophobic and lipophilic composite material and put it into a small beaker filled with 10mL diesel oil, take it out after absorbing for 1min, and directly weigh the weight of the hydrophobic and lipophilic composite material that is full of oil, and finally calculate the adsorption capacity of the hydrophobic and lipophilic composite material. Diesel equivalent to 40 times its own weight.

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Abstract

The invention discloses a rapid cationic polymerization method for preparation of a hydrophobic oleophylic composite material. The method comprises the following steps: S1, polyurethane sponge or non-woven fabric modification: adding polyurethane sponge or non-woven fabrics in a proper amount of n-hexane solvent, dropwise adding octadecyl trichlorosilane, and stirring at room temperature in a water bath, taking out and drying; S2, ultrasound treatment: taking an appropriate amount of modified polyurethane sponge or non-woven fabrics into a round bottom flask, adding the n-hexane solvent, adding a boron trifluoride diethyl etherate initiator, conducting ultrasonic treatment for a moment, adding divinylbenzene monomer and continuing ultrasonic reaction; and S3: drying: taking the products in the S2 with a pair of tweezers, washing the products with absolute ethyl alcohol three times, and drying the products in an oven to obtain the hydrophobic oleophylic composite material. The hydrophobic oleophylic composite material provided by the invention can absorb oil forty times of its weight; and the oil can be rapidly and simply recovered and used repeatedly. The method can also be realized in non-woven fabric, cotton and other textile fabrics.

Description

technical field [0001] The invention relates to an environmentally friendly adsorbent suitable for crude oil leakage, recovery and treatment of oil field sewage discharge and a preparation method thereof, belonging to the technical fields of environmental materials, polymer chemistry, polymers and environmental protection, and specifically a rapid cationic polymerization The method and application of preparing hydrophobic and lipophilic composite materials. Background technique [0002] With the rapid development of science and technology and the increasing scarcity of energy, the human demand for oil and its by-products is increasing, which aggravates the energy crisis and the pollution of oily wastewater. Oily wastewater has a wide range of sources, such as the development, processing and transportation of crude oil and other oil products in the petroleum industry, and emulsified oil wastewater produced in metallurgical manufacturing. When high-concentration oily wastewat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08F112/36C09K3/32D06M15/233D06M13/517C08L75/04
CPCC08F112/36C08J9/36C08J2375/04C09K3/32D06M13/517D06M15/233D06M2200/12
Inventor 朱小彪刘亚鹏
Owner BEIJING UNIV OF CHEM TECH
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