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Nano modified melt-blown nonwoven fabric material and manufacturing method thereof

A melt-blown non-woven fabric and nano-modification technology, which is applied in the field of filter materials, can solve the problems of poor mechanical properties, low strength, and poor wear resistance of melt-blown fabrics, and achieve high-strength mechanical properties, good mechanical properties, and mechanical properties. good performance

Inactive Publication Date: 2017-10-03
江苏科来材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the fibers of the meltblown nonwoven fabric rely on waste heat to self-bond, the meltblown fabric has poor mechanical properties, low strength, small elongation at break, and poor wear resistance. Composite use of non-woven fabrics such as crafts to make up for its weakness in strength, such as composite non-woven fabrics such as SMS and SMMS, to form multi-layer laminated products
But in this way, the cost of the product will increase accordingly, the thickness and air permeability will also be affected, and the application occasions will be limited

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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  • Nano modified melt-blown nonwoven fabric material and manufacturing method thereof
  • Nano modified melt-blown nonwoven fabric material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1) Selecting nano silicon dioxide with a particle size of 20-25nm and titanium dioxide with a particle size of 5-10nm; drying at a temperature of 120°C to remove moisture;

[0052] 2) Uniformly dissolving nano-silica and nano-titanium dioxide in toluene at a mass fraction of 1% and 4% respectively, and then adding 0.2% mass fraction of a coupling agent;

[0053] 3) Use ultrasonic mixing and oscillation for 20 minutes;

[0054] 4) Put the mixed solution in a water bath reflux reaction device, react for 180 minutes, and the temperature is 95°C;

[0055] 5) washing with absolute ethanol and drying after suction filtration to obtain modified nano-silica and nano-titanium dioxide;

[0056] 6) Mix the modified nano-silica and nano-titanium dioxide mixture with polypropylene chips at a mass percentage of 5%, and make polypropylene melt-blown non-woven fabrics through melt-blown nonwoven molding equipment;

[0057] 7) Electret treatment is carried out on the non-woven fabric ...

Embodiment 2

[0060] 1) select nano silicon dioxide with a particle size of 20-25nm, and titanium dioxide with a particle size of 5-10nm; dry at a temperature of 100°C to remove moisture;

[0061] 2) Uniformly dissolving nano silicon dioxide and nano titanium dioxide in toluene at a mass fraction of 6% and 1% respectively, and then adding 0.3% mass fraction of a coupling agent;

[0062] 3) Use ultrasonic mixing and oscillation for 20 minutes;

[0063] 4) Put the mixed solution in a water bath reflux reaction device, react for 180 minutes, and the temperature is 95°C;

[0064] 5) Clean and filter with absolute ethanol and then dry;

[0065] 6) Mix the modified nano silicon dioxide and nano titanium dioxide mixture with polypropylene slices at a mass percentage of 8%, and make polypropylene melt blown nonwoven fabric through melt blown nonwoven forming equipment;

[0066] 7) Electret treatment is carried out on the non-woven fabric through a corona electret process to obtain a nano-modified...

Embodiment 3

[0068] 1) select nano silicon dioxide with a particle size of 20-25nm, and titanium dioxide with a particle size of 5-10nm; dry at a temperature of 140°C to remove moisture;

[0069] 2) Uniformly dissolving nano-silica and nano-titanium dioxide in toluene at a mass fraction of 3% and 2%, respectively, and then adding a coupling agent of 0.1% mass fraction;

[0070] 3) Use ultrasonic mixing and oscillation for 40 minutes;

[0071] 4) Put the mixed solution in a water bath reflux reaction device, and react for 200 minutes at a temperature of 105°C;

[0072] 5) Clean and filter with absolute ethanol and then dry;

[0073] 6) Mix the modified nano silicon dioxide and nano titanium dioxide mixture with polypropylene slices at a mass percentage of 4%, and make polypropylene melt blown nonwoven fabric through melt blown nonwoven forming equipment;

[0074] 7) Electret treatment is carried out on the non-woven fabric through a corona electret process to obtain a nano-modified melt-b...

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Abstract

The invention provides a manufacturing method of a nano modified melt-blown nonwoven fabric material. The manufacturing method includes steps: modifying nano titanium dioxide and nano silicon dioxide; mixing modified nano titanium dioxide and nano silicon dioxide with polypropylene chips to obtain a polypropylene melt-blown nonwoven fabric; subjecting the nonwoven fabric to electret treatment through a corona electret process. The nano titanium dioxide and the nano silicon dioxide are modified and then mixed with the polypropylene chips, manufactured products are high in strength and great in mechanical property without subsequent finishing, and defects of insufficient strength of existing melt-blown nonwoven fabrics and poor breathability and thickness of composite nonwoven materials are overcome. In addition, the nano modified melt-blown nonwoven fabric material has antibacterial, deodorization and formaldehyde removal functions and the like.

Description

technical field [0001] The invention relates to the field of filter materials, in particular to a nano-modified melt-blown nonwoven fabric material and a manufacturing method thereof. Background technique [0002] Melt-blown nonwovens are a method of preparing ultra-fine fibers by blowing polymer melt with high-speed, high-temperature airflow to make them stretch rapidly. The polypropylene slices are melted through a screw extruder and passed through the spinneret holes. It is sprayed into a fibrous shape, and under the blowing of high-speed hot air, it is strongly stretched to form extremely fine short fibers. These short fibers are adsorbed on the web curtain, and the fibers are adhered to each other to form a melt-blown nonwoven cloth. The fiber diameter obtained by the process is very small, usually below 5um, which makes the melt-blown nonwovens have outstanding advantages in terms of filtration, bacteria resistance, and adsorption. [0003] However, since the fibers ...

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): D04H1/4291D01F1/10
CPCD04H1/4291D01F1/10D01F1/103
Inventor 时宝陆森荣
Owner 江苏科来材料科技有限公司
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