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Hydrophobic and oleophobic water-thorn non-woven fabric and preparation method thereof

A non-woven, oil-water technology, used in rayon manufacturing, textile and papermaking, and liquid-repellent fibers, can solve problems such as lack of oleophobic properties, ensure spinning effect, and improve hydrophobicity and hydrophobicity. Good oily, hydrophobic and oleophobic effect

Inactive Publication Date: 2022-06-24
CHTC JIAHUA NONWOVEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The non-woven fabric product obtained in this patent application is intended to be used in the medical and health field to control a certain degree of hydrophobicity while ensuring air permeability and moisture permeability. It is different from the requirements of non-woven fabrics for tablecloths and does not have oleophobic properties

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

[0038] A preparation method of a hydrophobic and oleophobic spunlace non-woven fabric, the specific steps are as follows:

[0039] (1) First ultrasonically disperse 10g polyacrylonitrile, 5g polylactic acid and 3g fluorine-containing polyurethane in 100g N,N-dimethylformamide, then add 3g photoinitiator, 1g nano-microspheres (single Disperse silica nano-microspheres, purchased from Shanghai Ruibei Trading Co., Ltd.) and 3 g of hexafluorobutyl methacrylate, stir and mix to obtain a spinning solution;

[0040]Wherein, the fluorine-containing polyurethane is prepared by the following method: firstly, 7g polyε-caprolactone diol (molecular weight 700), 3.8g isophorone diisocyanate, 0.9g 2,2-dimethylolpropane Acid and 0.1g of dibutyltin dilaurate were stirred and mixed, stirred at 70°C for 2 hours, then added 5g of 1,4-butanediol, kept stirring for 1 hour, cooled to 35°C, added 4g of triethylamine and 3g of ethylenediamine , 6 g of acetone, kept stirring for 2 hours, vacuum-dried, ...

Embodiment 2

[0047] A preparation method of a hydrophobic and oleophobic spunlace non-woven fabric, the specific steps are as follows:

[0048] (1) First ultrasonically disperse 12g polyacrylonitrile, 7g polylactic acid, and 4g fluorine-containing polyurethane in 100g N,N-dimethylformamide, then add 4g photoinitiator, 2g nanospheres and 4g under dark conditions Hexafluorobutyl methacrylate, stirring and mixing to obtain a spinning solution;

[0049] Wherein, the fluorine-containing polyurethane is prepared by the following method: firstly, 9g polyε-caprolactone diol (molecular weight 900), 4g isophorone diisocyanate, 1g 2,2-dimethylolpropionic acid and 0.2g of dibutyltin dilaurate was stirred and mixed well, stirred at 75°C for 3 hours, then added 6g of 1,4-butanediol, kept stirring for 2 hours, cooled to 40°C, added 5g of triethylamine, 4g of ethylenediamine, 8 g of acetone, kept stirring for 3 hours, vacuum-dried, washed 4 times with an aqueous methanol solution with a volume concentrat...

Embodiment 3

[0057] A preparation method of a hydrophobic and oleophobic spunlace non-woven fabric, the specific steps are as follows:

[0058] (1) First ultrasonically disperse 11g polyacrylonitrile, 6g polylactic acid, and 3.5g fluorine-containing polyurethane in 100g N,N-dimethylformamide, then add 3.5g photoinitiator, 1.5g nanometer microbe in the dark The ball and 3.5 g of hexafluorobutyl methacrylate were stirred and mixed to obtain a spinning solution;

[0059] Wherein, the fluorine-containing polyurethane is prepared by the following method: firstly, 8g polyε-caprolactone diol (molecular weight 800), 3.9g isophorone diisocyanate, 0.95g 2,2-dimethylolpropane Acid and 0.15g of dibutyltin dilaurate were stirred and mixed, stirred at 72°C for 2.5 hours, then added 5.5g of 1,4-butanediol, kept stirring for 1.5 hours, cooled to 38°C, added 4.5g of triethylamine, 3.5 g ethylenediamine, 7g acetone, keep stirring for 2.5 hours, vacuum dry, wash 4 times with 35% methanol aqueous solution by...

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 preparation method comprises the following steps: preparing composite fibers from polyacrylonitrile, polylactic acid, fluorine-containing polyurethane, nano-microspheres and hexafluorobutyl methacrylate as raw materials through electrospinning, carding the composite fibers into a fiber web, reinforcing the fiber web by adopting a spunlace reinforcing process to obtain the hydrophobic and oleophobic water-spunlace non-woven fabric, and finally preparing the hydrophobic and oleophobic water-spunlace non-woven fabric. And finally, carrying out surface treatment on the fiber web by using methyl trichlorosilane, and drying to obtain the non-woven fabric. The non-woven fabric has extremely strong hydrophobicity and oleophobicity, is waterproof and stain-resistant, and can be used for tablecloth processing.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabric preparation, and in particular relates to a hydrophobic and oleophobic spunlace non-woven fabric and a preparation method thereof. Background technique [0002] Non-woven fabrics are non-woven fabrics formed by forming high polymer chips, short fibers or filaments into a web through air flow or machinery, then spunlace, needle punching or hot rolling reinforcement, and finally after finishing. Among them, the spunlace non-woven fabric is to spray high-pressure fine water flow onto one or more layers of fiber webs, so that the fibers are entangled with each other, so that the fiber web can be reinforced and have a certain strength, and the obtained fabric is spunlace non-woven fabric. cloth. The spunlace non-woven fabric has the advantages of simple preparation process, high strength, low fluff, good air permeability, soft hand feeling and good drapability. [0003] In recent years, with...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/517D06M15/277D01F8/14D01F8/08D01F8/16D01F1/10C08F212/08C08F220/32D06M101/28D06M101/32D06M101/38
CPCD06M13/517D06M15/277D01F8/14D01F8/08D01F8/16D01F1/10C08F212/08C08F220/325D06M2101/28D06M2101/32D06M2101/38D06M2200/12D06M2200/11D06M2200/01
Inventor 曹仁广李晓军张帅杰邓连华杨寒光曾静雯朱波涛
Owner CHTC JIAHUA NONWOVEN CO LTD
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