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 elect

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038] (1) Prepare 10ml of a tetrahydrofuran / cyclohexane solution of EPDM rubber with a mass percentage concentration of 6%, in which 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, let it degas for 4 hours.

[0039] (2) Take about 5 ml of the above polymer solution, put it into the liquid storage device, remove the air, and connect the spinneret (aperture 1.2 mm). Connect the spinneret to the positive pole of the high-voltage power supply. A 10 cm×10 cm aluminum foil collection device is installed, and the temperature of the collection device is 30°C. The collection device is grounded. Adjust the distance between the spinneret and the collection device to 16 cm. The spinning environment temperature is 30°C, including the temperature of the solution in the liquid storage device and the temperature of the collection device are bot...

Example Embodiment

[0042]Example 2

[0043] (1) Prepare 10 ml of a tetrahydrofuran solution of EPDM rubber with a concentration of 6% by mass, stir at 60° C. for 24 hours to obtain a uniformly dissolved and transparent polymer solution, cool to room temperature and leave it to defoam for 4 hours.

[0044] (2) Take about 5 ml of the above polymer solution, put it into the liquid storage device, remove the air, and connect the spinneret (aperture 1.2 mm). Connect the spinneret to the positive pole of the high-voltage power supply. A 10 cm×10 cm aluminum foil collection device is installed, and the temperature of the collection device is 30°C. The collection device is grounded. Adjust the distance between the spinneret and the collection device to 18 cm. The spinning environment temperature is 30°C, including the temperature of the solution in the liquid storage device and the temperature of the collection device are both 30°C.

[0045] (3) Turn on the high-voltage power supply, adjust the voltage to 1...

Example Embodiment

[0047] Example 3

[0048] (1) Prepare 10ml of tetrahydrofuran / xylene solution of EPDM with a concentration of 4% by mass, in which the volume ratio of tetrahydrofuran / xylene is 5:1, and stir at 60℃ for 24 hours to obtain a uniform and transparent solution. The polymer solution is cooled to room temperature and left for 4 hours to degas.

[0049] (2) Take about 5 ml of the above polymer solution, put it into the liquid storage device, remove the air, and connect the spinneret (aperture 1.2 mm). Connect the spinneret to the positive pole of the high-voltage power supply. A 10 cm×10 cm aluminum foil collection device is installed, and the temperature of the collection device is 30°C. The collection device is grounded. Adjust the distance between the spinneret and the collection device to 20 cm. The spinning environment temperature is 30°C, including the temperature of the solution in the liquid storage device and the temperature of the collection device are both 30°C.

[0050] (3) Tu...

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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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