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Polysulfone/natural fiber composite oil absorbing material and preparation method thereof

A technology of natural fibers and oil-absorbing materials, applied in the direction of plant fibers, etc., can solve the problems of polylactic acid temperature sensitivity, harsh processing conditions, and high material brittleness, and achieve the effects of fast absorption speed, easy processing and good oil absorption capacity

Inactive Publication Date: 2018-02-02
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polylactic acid is sensitive to temperature, the material is very brittle, and the processing conditions are relatively harsh.

Method used

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  • Polysulfone/natural fiber composite oil absorbing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 5 g of bisphenol A polysulfone into 50 mL of N-methylpyrrolidone, stir magnetically at room temperature for 5 h to fully dissolve; soak 1.5 g of croissant melon fiber in bisphenol A polysulfone solution, and swell for 30 min; After separation, immerse in distilled water, replace with stirring for 2 hours, and repeat 3 times; wash with water and ethanol in sequence, and dry at 20°C to obtain polysulfone / horn squash fiber composite oil-absorbing material. The absorption of soybean oil by the oil-absorbing material is 925% (the absorption of soybean oil by the polysulfone oil-absorbing material obtained without the addition of horn gourd fiber is 510%).

Embodiment 2

[0029] Add 1.5 g of polyethersulfone into 50 mL of dimethylacetamide, stir magnetically at room temperature for 15 h to fully dissolve; soak 1.5 g of chloroform-modified croissant melon fibers in the polyethersulfone solution, and swell for 10 min; After separation, submerged in tap water, replaced with stirring for 5 hours, repeated twice; washed with water and ethanol in sequence, and dried at 40°C to obtain polysulfone / croissia fiber composite oil-absorbing material. The oil-absorbing material has an absorption capacity of 818% for soybean oil.

Embodiment 3

[0031] Add 10 g of polyphenylsulfone to 50 mL of dimethyl sulfoxide, and stir magnetically at room temperature for 1 h; soak 0.5 g of squash fiber in the polyphenylsulfone solution and swell for 60 min; separate the fibers and immerse in the NaCl solution , replaced under stirring for 1 h, repeated 5 times; washed with water and ethanol in sequence, and dried at 60°C to obtain a polysulfone / horia gourd fiber composite oil-absorbing material. The absorption capacity of the oil-absorbing material to soybean oil is 1056%.

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PUM

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Abstract

The invention discloses a polysulfone / natural fiber composite oil absorbing material, which is prepared by immersing natural fiber in a polysulfone solution for 1 to 60min, separating, replacing withwater as a solvent, washing with water and ethanol in turn, and drying. The natural fiber is Calotropis gigantea fiber or / and kapok fiber. The polysulfone / natural fiber composite oil absorbing material prepared by combination of the advantages of polysulfone and the Calotropis gigantea fibe has good oil absorption capacity, fast absorption rate, high efficiency, and excellent mechanical properties, can be used in oil recovery and recycling use through simple squeezing, is a green environment-friendly oil absorbing material, and can be widely used in marine oil spill accident treatment, oil-water separation and oil-containing industrial wastewater treatment and the like.

Description

technical field [0001] The invention relates to a composite oil-absorbing material, in particular to a polysulfone / natural fiber composite oil-absorbing material and a preparation method thereof, mainly used for treating pollution caused by oil leakage, and belongs to the technical field of composite materials and environmental protection. Background technique [0002] The ocean is a strategic base for human survival and sustainable development, but oil spill accidents at sea have occurred one after another around the world, and may have serious impacts on marine ecosystems and humans near polluted coastlines through physical suffocation and toxic reactions. Oil spills at sea are a large-scale, wide-ranging and serious source of pollution. The current treatment methods include physical methods, chemical methods and biological methods. Among them, the oil in the water is collected by using oil-absorbing materials and turned into solid or semi-solid It is considered to be a ve...

Claims

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Application Information

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IPC IPC(8): D06M15/63C09K3/32D06M101/06D06M101/04
CPCD06M15/63C09K3/32D06M2101/04D06M2101/06
Inventor 郑易安肖伟龙曹恩娟段文臻
Owner LANZHOU UNIVERSITY
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