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Novel environmental protection fiber film material and its preparation method

A fibrous membrane, an environmentally friendly technology, applied in the field of new environmentally friendly fibrous membrane materials and its preparation, can solve problems such as filtration difficulties

Inactive Publication Date: 2007-11-28
上海兰度科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the effect of the filter membrane mainly depends on the diameter of the fiber, while the diameter of the ordinary non-woven fiber is basically at the micron level, it is still difficult to filter the pollution components at the nanometer level.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of preparation method of novel polybutylene succinate environmental protection fiber film material is as follows:

[0034] (1) dissolving polybutylene succinate, a raw material for micro-nanofibers, in chloroform in a ratio of 13:87 by mass percentage with solvent chloroform to prepare spinning solution;

[0035] (2) Nano-TiO with an average diameter of 5 nm 2 Adding in the spinning solution prepared by the above step (1) in a ratio of 0.1:99 with the mass percent of the spinning solution prepared by the above step (1), to obtain nano-TiO 2 Spinning liquid; use ultrasonic dispersion equipment to adopt the dispersion power of 300W and the dispersion frequency of 20kHz to process the above-mentioned nano-TiO 2 The spinning liquid is subjected to 100min ultrasonic dispersion treatment to make nano-TiO 2 Fully dispersed in the spinning solution;

[0036] (3) The nano-TiO containing through the above-mentioned step (2) preparation will be fully dispersed 2 The spi...

Embodiment 2

[0040] A kind of preparation method of novel polyacrylonitrile environmental protection fiber membrane material is as follows:

[0041] (1) dissolving polyacrylonitrile, the raw material of micro-nanofibers, in N, N-dimethylformamide in a ratio of 17:83 by mass percentage with solvent N, N-dimethylformamide to prepare spinning solution;

[0042] (2) Nano-TiO with an average diameter of 20nm 2 Adding in the spinning solution prepared by the above step (1) in a ratio of 3:97 with the mass percent of the spinning solution prepared by the above step (1), obtains nano-TiO 2 Spinning solution; use ultrasonic dispersion equipment to adopt the process of dispersion power of 800W and dispersion frequency of 60kHz to the above-mentioned nano-TiO 2 The spinning solution was subjected to 60min ultrasonic dispersion treatment to make nano TiO 2 Fully dispersed in the spinning solution;

[0043] (3) The nano-TiO containing through the above-mentioned step (2) preparation will be fully di...

Embodiment 3

[0046] A kind of preparation method of novel polyester environment-friendly fiber membrane material is as follows:

[0047] (1) Nano-TiO with an average diameter of 50nm 2 Uniformly mixing with the micro-nano fiber raw material in a ratio of 15:85 by mass percentage to obtain a mixture of the two, and drying the above mixture at 160°C for 18 hours;

[0048] (2) Pour the mixture prepared in step (1) into the feed port of the electrospinning device, melt the fiber polyester chips through the extrusion of the screw extruder and keep the melt temperature at 292 ° C, and the nano-TiO 2 Extrude the spinneret with molten polyester chips, and use ultrasonic vibration equipment to apply ultrasonic vibration to the screw extruder with a dispersion power of 1200W and a frequency of 120kHz during the melting process to make nano-TiO 2 Under the action of ultrasonic vibration, it is evenly dispersed in the molten fiber raw material;

[0049] (3) Extruded from the spinneret of the electro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The present invention belongs to the field of environment protecting technology, and is especially one kind of environment protecting fibrous membrane material. The environment protecting fibrous membrane material consists of nanometer TiO2 of 1-55 nm diameter and micron and nanometer fiber of 30-1500 nm diameter, and has pore diameter of 7-350 nm. The environment protecting fibrous membrane material can filter out micron level dust and other impurity, and nanometer level virus and microbes, eliminate chlorohydrocarbon, chlorine-containing organic and other toxic compound, reduce carcinogenic Cr6+ into non-toxic Cr3+, oxidize cyanide into non-toxic CO2, etc, kill Bacillus pyocyaneus, colibacillus, etc, and shield static electricity and ultraviolet ray.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to a novel environment-friendly fiber membrane material and a preparation method thereof. Background technique [0002] At present, environmental pollution problems have appeared to varying degrees around the world, including atmospheric environmental pollution, marine pollution, and urban environmental problems. In order to solve the pollution problem, the environmental filter membrane becomes the basic element of air and water filtration. Most of the filter membranes that exist widely at present are made of ordinary non-woven fiber webs. Since the effect of the filter membrane mainly depends on the diameter of the fiber, and the diameter of the ordinary non-woven fiber is basically at the micron level, it is still difficult to filter the pollution components at the nanometer level. Contents of the invention [0003] The invention provides a new type of environment-friendl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B01D71/76
Inventor 郭敏
Owner 上海兰度科技有限公司
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