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Preparation method of porous high-oil-absorbing resin

An oleoresin, high-absorption technology, applied in the field of functional polymer materials, to achieve the effect of simple and easy preparation method, high oil absorption rate and strong oil retention capacity

Inactive Publication Date: 2013-05-08
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High internal phase emulsion template polymerization can prepare porous materials with controllable pore size and pore size distribution, but there are few reports on its use in the preparation of porous super oil-absorbing resins

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Add 0.1 g of azobisisobutyronitrile, 4.8 ml of Span 80, 5.0 ml of cyclohexane, and 0.5 ml of pentaerythritol triacrylate into 2.0 ml of octadecyl methacrylate, and stir evenly at a speed of 350 rpm. Under stirring, add 50.0 milliliters of an aqueous solution that is dissolved with 0.2 gram of anhydrous calcium chloride dropwise at a constant speed, continue to stir for 0.5 hour after the dropwise addition, and then move into a constant temperature oil bath at 75 degrees Celsius to carry out high internal phase emulsion template polymerization for 12 hours, the product After cooling, separating, extracting with Soxhlet extractor for 12 hours, and vacuum drying, the porous high oil-absorbing resin is obtained.

[0012] The obtained high oil-absorbing resin had an oil absorption rate of 20 times for chloroform, 11 times for toluene, and 13 times for benzene.

Embodiment 2

[0014] Add 0.2 g of azobisisobutyronitrile, 5.5 ml of Span 80, 5.5 ml of cyclohexane, and 0.75 ml of pentaerythritol triacrylate into 3.0 ml of octadecyl methacrylate, and stir evenly at a speed of 400 rpm. Under stirring, add 60.0 milliliters of an aqueous solution that is dissolved with 0.5 gram of anhydrous calcium chloride dropwise at a constant speed, continue to stir for 35 minutes after the dropwise addition, then move into a constant temperature oil bath at 80 degrees Celsius to carry out high internal phase emulsion template polymerization for 14 hours, the product After cooling, separating, extracting with Soxhlet extractor for 15 hours, and vacuum drying, the porous high oil-absorbing resin is obtained.

[0015] The obtained high oil-absorbing resin had an oil absorption rate of 18 times for chloroform, 12 times for toluene, and 10 times for benzene.

Embodiment 3

[0017] Add 0.18 g of azobisisobutyronitrile, 4.0 ml of Span 80, 3.5 ml of cyclohexane, and 1.5 ml of divinylbenzene into 3.2 ml of octadecyl methacrylate, and stir evenly at a speed of 200 rpm. Under stirring, add 48.0 milliliters of an aqueous solution that is dissolved with 0.1 gram of anhydrous calcium chloride dropwise at a constant speed, continue to stir for 45 minutes after the dropwise addition, and then move into a constant temperature oil bath at 75 degrees Celsius to carry out high internal phase emulsion template polymerization for 15 hours, the product After cooling, separation, Soxhlet extraction for 16 hours, and vacuum drying, the porous high oil-absorbing resin is obtained.

[0018] The obtained high oil-absorbing resin had an oil absorption ratio of 14 times for chloroform, an oil absorption ratio of 8 times for toluene, and a ratio of 5 times for benzene.

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PUM

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Abstract

The invention discloses a preparation method of a porous high-oil-absorbing resin. The method is characterized by comprising the following steps: firstly, adding an initiator (azobisisobutyronitrile), an emulsifier span-80, a porogenic agent and a cross-linking agent in a monomer octadecyl methacrylate; evenly stirring; dropwise adding an aqueous solution of anhydrous calcium chloride at a constant speed while stirring; after dropwise adding, continuing to stir; then carrying out high internal phase emulsion template polymerization; cooling, separating, extracting by utilizing a Soxhlet extractor and carrying out vacuum drying on the product so as to obtain the porous high-oil-absorbing resin. By virtue of the preparation method disclosed by the invention, the porous high-oil-absorbing resin the oil-absorbing multiplying factor of which on chloroform is 20 times is obtained.

Description

technical field [0001] The invention relates to a method for preparing a porous high oil-absorbing resin, in particular to a method for preparing a porous high oil-absorbing resin based on high internal phase emulsion template polymerization, and belongs to the field of functional polymer materials. Background technique [0002] With the continuous development of the world's industrialization, the problem of oil pollution is very serious, especially oily sewage, waste liquid, and oil spills from oil tankers and oil tanks have increased, causing pollution to rivers and oceans, posing a great threat to the human environment and human life. In order to control oil pollution, the most researched at present is the preparation of high oil-absorbing resin containing chemical crosslinking. The traditional preparation methods are suspension polymerization and emulsion polymerization. [0003] In recent years, high internal phase emulsion template polymerization technology has attract...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F2/30C08J9/14C09K3/32
Inventor 陈厚曲荣君王春华谭志冀乃一王栋吕高建
Owner LUDONG UNIVERSITY
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