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A kind of preparation method of modified nano cotton oil-absorbing material

A technology of oil-absorbing materials and nano-cotton, which is applied in the fields of oil-absorbing materials and environmental protection, can solve the problems of less work reports, and achieve the effects of improved oil-absorbing selectivity, mild reaction conditions, and excellent oil-absorbing selectivity

Inactive Publication Date: 2016-11-16
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few reports on the preparation of oil-absorbing materials using nano-cotton (melamine sponge) as a matrix

Method used

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  • A kind of preparation method of modified nano cotton oil-absorbing material
  • A kind of preparation method of modified nano cotton oil-absorbing material
  • A kind of preparation method of modified nano cotton oil-absorbing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 50 mL of water and 0.675 g of polyvinyl alcohol into the reaction vessel, raise the temperature to about 60° C. and stir to completely dissolve the polyvinyl alcohol. Add 0.45g block nano wool and stir. Raise the temperature to 80°C, add 5mL (4.5g) of butyl acrylate, 0.225g of benzoyl peroxide, and 0.2g of N,N-methylenebisacrylamide after the temperature stabilizes, and stop the reaction after stirring for 6h. The product was taken out, washed several times with water, and dried in vacuum until constant weight.

[0027] Such as figure 1 As shown, the left picture is the optical microscope image of the blank nano-cotton, the nano-cotton has a porous network structure. The picture on the right is an optical microscope image of the modified nano-cotton. It can be seen that there are some polyacrylate oil-absorbing resin particles in the network structure, which improves its oil-absorbing performance and oil-absorbing selectivity while retaining the porosity of the na...

Embodiment 2

[0029] Add 50mL of water and 1g of polyvinyl alcohol into the reactor, raise the temperature to about 60°C and stir to completely dissolve the polyvinyl alcohol. Add 0.55g block nano wool and stir. The temperature was raised to 85°C, and after the temperature stabilized, 10 mL (9 g) of butyl acrylate, 0.18 g of benzoyl peroxide, and 0.45 g of N,N-methylenebisacrylamide were added, and the reaction was stopped after stirring for 4 hours. The product was taken out, washed several times with water, and dried in vacuum until constant weight.

Embodiment 3

[0031] Add 50mL of water and 1g of polyvinyl alcohol into the reactor, raise the temperature to about 60°C and stir to completely dissolve the polyvinyl alcohol. Add 0.3g block nano wool and stir. The temperature was raised to 90°C, and after the temperature stabilized, 15 mL (13.5 g) of butyl acrylate, 0.27 g of benzoyl peroxide, and 0.135 g of N,N-methylenebisacrylamide were added, and the reaction was stopped after stirring for 8 hours. The product was taken out, washed several times with water, and dried in vacuum until constant weight.

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Abstract

The invention relates to a preparation method of a modified nano-cotton oil-absorbing material that can continuously and selectively absorb oil, comprising the following steps: 1) adding water and polyvinyl alcohol into a reaction vessel, heating and stirring to completely dissolve the polyvinyl alcohol, adding block nano-cotton; 2) heating up the water bath, and after the temperature stabilizes, add monomer butyl acrylate, benzoyl peroxide, N,N-methylenebisacrylamide, and stir for reaction; 3) after the reaction, take out the modified Nano cotton, washed with water, dried in vacuum to constant weight. The present invention has the following advantages: 1) Nano cotton with high internal porosity is selected as the reaction matrix, so that the modified oil-absorbing material has good oil retention capacity; 2) The modification method is simple to operate and the reaction conditions are mild; 3) Modification The oil-absorbing selectivity of the modified nano-cotton has been significantly improved, and the modified nano-cotton can continue to absorb oil after being connected to a vacuum device.

Description

technical field [0001] The invention belongs to the technical field of oil-absorbing materials and environmental protection, and relates to a preparation method of a modified nano-cotton oil-absorbing material capable of continuous and selective oil-absorbing. Background technique [0002] In recent years, pollution caused by oil spills in the ocean has been recognized as a major environmental problem worldwide. In order to avoid the adverse effects of crude oil spills on the ecosystem and the long-term damage of oil pollution, it is necessary to develop materials that can effectively clean up oil pollution. Traditional synthetic oil-absorbing materials are mainly polyacrylate super oil-absorbing resins, which have a high oil absorption rate, but have the problem of oil absorption saturation, and cannot be recycled for continuous oil absorption. [0003] In recent years, more and more researchers have turned their attention to the research of oil-absorbing foam, but most of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/02C08F220/18C08F222/38C08F2/20C09K3/32
Inventor 吴江渝赵婷婷高慧敏许谦李竹郭庆中
Owner WUHAN INSTITUTE OF TECHNOLOGY
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