Ethylene propylene terpolymer superfine fibre and its preparation method and application

A technology of EPDM rubber and ultra-fine fiber, applied in wet spinning and other directions, can solve the problems of unfavorable electrospinning, high viscosity and surface tension, and achieve the elimination of spinning, high porosity and huge economic benefits. Effect

Inactive Publication Date: 2008-01-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrospinning report of EPDM has not been seen yet, which is mainly due to the high viscosity and surface tension of the EPDM solution even at a very low concentration, which is not conducive to the smooth progress of electrospinning.
[0005] It can be seen from the above that although there have been some researches in the field of electrospinning of polymers, it is still a blank in the preparation of ultrafine fibers of EPDM by electrospinning technology.

Method used

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  • Ethylene propylene terpolymer superfine fibre and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (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.

[0039] (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

[0043] (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.

[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 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.

[0045] (3) Turn on the high-voltage power supply, adjust the voltage to 15Kv, and the air veloc...

Embodiment 3

[0048] (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.

[0049] (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.

[0050] (3) Turn o...

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Abstract

The invention supplies ethylene propylene terpolymer superfine fiber which includes fiber with 200nm-5000nm diameter and its non-woven fabrics or film. Its preparation includes the following steps: dissolving the ethylene propylene terpolymer in the solvent and cooling to room temperature; standing for 2-8 hours at room temperature; electrostatic spinning at 20-60 deg.C to make nanometer fiber; vacuum drying for 48h below 60 deg.C. The invention can be used in spinning, highly active medium separating, absorbing material fields etc.

Description

technical field [0001] The invention relates to superfine fibers and a preparation method and application thereof, in particular to a EPDM superfine fiber and a preparation method and application thereof. Background technique [0002] EPDM has become the third largest synthetic rubber material. Compared with other general-purpose rubbers, it has excellent weather resistance, ozone resistance, heat resistance, good electrical insulation and chemical medium corrosion resistance, and relative density Low, hygienic, most of them present good colorless and transparent characteristics. At present, in the domestic market, it is mainly used in auto parts, building materials, wires and cables, polyolefin plastic modification and oil additives, etc. Other fields include railway transportation, subway engineering, pipeline transportation, drinking water seals, hot water pipes, baby products, etc. The importance of EPDM rubber in the development of new products is increasingly apparen...

Claims

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Application Information

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IPC IPC(8): D01F6/30D01D5/06B01D71/24
Inventor 刘艳萍周美华
Owner DONGHUA UNIV
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