Cross-linked three D reticular supertine oil absorption fibre and its preparation method and application

A technology of oil-absorbing fiber and three-dimensional network, which is applied in the field of cross-linked three-dimensional network ultra-fine oil-absorbing fiber and its preparation, and achieves the effects of wide application prospects, good controllability and repeatability, and low equipment cost

Inactive Publication Date: 2009-12-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It can be seen from the above that although there have been some researches in the field of oil-absorbing fibers and their preparation, electrospinning technology and microwave radiation technology are used to prepare ultra-fine fibers based on EPDM rubber with physical and chemical crosslinked three-dimensional network structures. Oil-absorbing fiber is still a blank

Method used

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  • Cross-linked three D reticular supertine oil absorption fibre and its preparation method and application
  • Cross-linked three D reticular supertine oil absorption fibre and its preparation method and application
  • Cross-linked three D reticular supertine oil absorption fibre and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Prepare 10 ml of tetrahydrofuran / cyclohexane solution of 6% ethylene-propylene-diene rubber in a concentration of 6%, wherein the volume ratio of tetrahydrofuran / cyclohexane is 4:1, and stir at 60° C. for 24 hours to obtain a uniform solution , Transparent polymer solution, after cooling to room temperature, place it for 4 hours for defoaming.

[0044] (2) Take about 5 milliliters of the above-mentioned polymer solution, put it into a liquid storage device, remove air, and connect a spinneret (aperture 1.2 mm). Connect the spinneret to the positive pole of the high voltage power supply. Install a 10 cm x 10 cm aluminum foil collection device with a temperature of 30 °C. The collection device is grounded. Adjust the distance between the spinneret and the collecting device to be 16 cm. The ambient temperature for spinning is 30°C, including the temperature of the solution in the liquid storage device and the temperature of the collecting device are both 30°C.

[0...

Embodiment 2

[0049] (1) Prepare 10 ml of tetrahydrofuran solution of EPDM rubber with a mass percent concentration of 6%, stir at 60° C. for 24 hours to obtain a uniformly dissolved and transparent polymer solution, cool to room temperature and place for 4 hours for defoaming.

[0050] (2) Take about 5 milliliters of the above-mentioned polymer solution, put it into a liquid storage device, remove air, and connect a spinneret (aperture 1.2 mm). Connect the spinneret to the positive pole of the high voltage power supply. Install a 10 cm x 10 cm aluminum foil collection device with a temperature of 30 °C. The collection device is grounded. Adjust the distance between the spinneret and the collecting device to be 18 cm. The ambient temperature for spinning is 30°C, including the temperature of the solution in the liquid storage device and the temperature of the collecting device are both 30°C.

[0051] (3) Turn on the high-voltage power supply, adjust the voltage to 15Kv, and the air veloc...

Embodiment 3

[0055] (1) Prepare 10ml of tetrahydrofuran / xylene solution of EPDM rubber with a mass percentage concentration of 4%, wherein the volume ratio of tetrahydrofuran / xylene is 5:1, and stir at 60°C for 24 hours to obtain a uniform and transparent solution The polymer solution was cooled to room temperature and placed for 4 hours for degassing.

[0056] (2) Take about 5 milliliters of the above-mentioned polymer solution, put it into a liquid storage device, remove air, and connect a spinneret (aperture 1.2 mm). Connect the spinneret to the positive pole of the high voltage power supply. Install a 10 cm x 10 cm aluminum foil collection device with a temperature of 30 °C. The collection device is grounded. Adjust the distance between the spinneret and the collecting device to be 20 cm. The ambient temperature for spinning is 30°C, including the temperature of the solution in the liquid storage device and the temperature of the collecting device are both 30°C.

[0057] (3) Turn o...

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Abstract

The invention provides a cross-linked three-dimensional network ultrafine oil-absorbing fiber, which is an ultrafine oil-absorbing fiber based on EPDM rubber, including fiber and oil-absorbing felt, oil-absorbing blanket, oil-absorbing sheet or oil-absorbing film made of such fiber, fiber The diameter is from 200nm to 5000nm. The preparation includes: (1) configuration of spinning stock solution; (2) defoaming; (3) preparation of nanofibers by electrospinning; (4) putting the obtained fibers into a vacuum oven and drying them in vacuum; (5) preparation by microwave radiation technology Three-dimensional mesh oil-absorbing fiber material. The cross-linked three-dimensional network superfine oil-absorbing fiber of the present invention has broad application prospects in various fields such as oil-absorbing materials, filter materials, slow-release substrates and the like.

Description

technical field [0001] The invention belongs to the field of oil-absorbing fiber and its preparation and application, and in particular relates to a cross-linked three-dimensional network ultrafine oil-absorbing fiber and its preparation method and application. Background technique [0002] Oil spills damage the natural environment, endanger public health, contaminate drinking water and disrupt economies. Using oil-absorbing materials to mechanically recover oil pollutants in the leakage area is one of the effective measures for emergency treatment of oil pollutants. [0003] At present, oil-absorbing fiber materials at home and abroad mainly include polypropylene and polystyrene fibers. They use the hydrophobic and lipophilic characteristics of the polymer itself to absorb oil in the voids of the material through the capillary principle. The disadvantage is that the oil absorption efficiency is low, generally about 10 times, and the price is expensive. Moreover, oil will s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/30D01D1/02D01D1/10D01D5/00C09K3/32
Inventor 刘艳萍周美华
Owner DONGHUA UNIV
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