Double-component melt-blown durable electret non-woven fabric and manufacturing method thereof

A two-component, woven fabric technology, applied in the field of non-woven fabrics, to achieve high temperature resistance, excellent electret durability, and high filtration efficiency

Inactive Publication Date: 2009-12-02
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The mineral electret doping mentioned above is all implemented for single-component melt-blown nonwovens, adding inorganic mineral electret particles to two-component melt-blown nano-microfiber nonwovens and performing corona discharge electret and other aspects. There are no relevant reports at home and abroad

Method used

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  • Double-component melt-blown durable electret non-woven fabric and manufacturing method thereof
  • Double-component melt-blown durable electret non-woven fabric and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Pretreatment: first put the 80 parts of PET component slices into a fluidized bed pre-crystallizer, pre-crystallize at 160°C for 1.5 hours, then send them into a filling dryer, and dry at 160°C for 8 hours;

[0043] (2) Manufacture of melt-blown nonwovens: Mix 2 parts of modified functional masterbatch containing 20% ​​tourmaline and 18 parts of pure PP resin in a high-speed mixer and feed them directly into another screw extruder. Melt at 250, and then pass through the melt filter and metering pump into the same melt blown die head; under the protection of nitrogen, feed the pretreated PET component into one of the screw extruders under the protection of nitrogen. Melt and extrude at 270°C, and then pass through a melt filter and a metering pump into the melt-blown die; the two melts meet at the melt-blown die at a ratio of 20 / 80, and then pass through the spinneret hole of the melt-blown die Under the action of hot air blowing at 300°C on both sides, a side-by-sid...

Embodiment 2

[0046] (1) Pretreatment: first put the 60 parts of PET component slices into a fluidized bed pre-crystallizer, pre-crystallize at 165°C for 1 hour, then send them into a filling dryer, and dry at 165°C for 6 hours;

[0047] (2) Manufacture of melt-blown nonwovens: mix 5 parts of modified functional masterbatch containing 20% ​​tourmaline with 35% pure PP resin in a high-speed mixer and directly feed it into another screw extruder, at 260 It is melted at ℃, and then sent to the same melt-blown die head through a melt filter and a metering pump; under the protection of nitrogen, the pretreated PET component is fed into one of the screw extruders under the protection of nitrogen. Melt and extrude at 280°C, and then pass through a melt filter and a metering pump into the melt-blown die; the two melts meet at the melt-blown die in a ratio of 40 / 60, and then pass through the spinneret hole of the melt-blown die Under the blowing of hot air at 290°C on both sides, a side-by-side two-...

Embodiment 3

[0050] (1) Pretreatment: first put the 40 parts of PET component slices into a fluidized bed pre-crystallizer, pre-crystallize at 170°C for 0.5 hours, then send them into a filling dryer, and dry at 170°C for 4 hours;

[0051](2) Manufacture of melt-blown nonwovens: Mix 15 parts of modified functional masterbatch containing 20% ​​tourmaline with 45 parts of pure PP resin in a high-speed mixer and directly feed it into another screw extruder. It is melted at ℃, and then sent to the same melt-blown die head through a melt filter and a metering pump; under the protection of nitrogen, the pretreated PET component is fed into one of the screw extruders under the protection of nitrogen. Melt and extrude at 280°C, and then pass through the melt filter and metering pump into the melt-blown die head; the two melts meet at the melt-blown die head at a ratio of 60 / 40, and then flow through the spinneret hole of the melt-blown die head Under the blowing of hot air at 280°C on both sides, ...

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Abstract

The invention relates to a double-component melt-blown durable electret non-woven fabric and a manufacturing method thereof. The non-woven fabric consists of tourmaline modified polypropylene/polyethylene glycol adipate (tourmaline modified PP/PET) parallel double-component melt-blown nano microfiber; and the fiber has the following components in percentage by mass: 20 to 80 percent of tourmaline modified PP, and 80 to 20 percent of PET. The method for manufacturing the non-woven fabric adopts the components in percentage by mass and the process steps of: (1) performing drying pre-treatment on the PET first; (2) then preparing a double-component melt-blown non-woven fabric by tourmaline modified PP/PET melt-blown composite spinning technology; and (3) finally obtaining the double-component melt-blown durable electret non-woven fabric by performing high-voltage corona discharge electret treatment on the non-woven fabric. The non-woven fabric can be used for durable high-efficiency filtration materials, and can also be applied to thermal insulation materials, antibacterial medical materials, oil absorption materials and the like.

Description

technical field [0001] The invention relates to non-woven fabric technology, in particular to a two-component melt-blown durable electret non-woven fabric and a manufacturing method thereof. The international patent main classification number is intended to be Int.Cl D01F1 / 09 (2006.01). Background technique [0002] Due to the rapid development of industrial and agricultural production in the world, the pollution of human living environment has been aggravated. Among them, dust in the air, heavy metal ions and microorganisms in the water all pose a great threat to human health. How to deal with these pollutions and purify air and water resources are important issues to be solved urgently. [0003] So far, there are many research reports on high-efficiency and low-resistance filter materials. In the report No. 4364 of Naval Research Laboratories published on May 25, 1954, "Manufacture of Supper Fine Organic Fiber" published by Van A.Wente et al., the melt-blown method equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/16D01D5/32D01D10/00D01F8/06D01F8/14D01F1/09D06M10/02
Inventor 程博闻康卫民刘亚宋晓艳王娜任元林庄旭品李全祥
Owner TIANJIN POLYTECHNIC UNIV
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