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Preparation method of ultra-high modulus polyethylene and polypropylene nano-melt-blown nonwoven fabric

A melt-blown non-woven fabric, polyethylene technology, applied in non-woven fabrics, textiles and papermaking, fiber processing and other directions, can solve the problems of ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics that cannot be prepared, etc. Achieve the effect of easy industrial application, mild conditions and simple operation

Active Publication Date: 2017-10-10
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the technical difficulty that ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics cannot be prepared in the prior art, and use the reasonable combination of micro-layer co-extrusion technology and melt-blown technology , developed ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabric preparation methods to meet the social needs of industrial nanofibers

Method used

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  • Preparation method of ultra-high modulus polyethylene and polypropylene nano-melt-blown nonwoven fabric

Examples

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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the preparation method of ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics in this example includes the following steps: (1) Raw material component A: a mixture of white oil and ultra-high modulus polyethylene And raw material component B: melt-blown polypropylene with a melt index of 405g / 10min is fed from two screws of a three-screw extruder respectively, wherein the weight ratio of white oil to ultra-high modulus polyethylene is 95:5 (2) In the step (1), component A and component B are introduced into a micro-layer co-extrusion device under the action of a three-screw extruder, and a laminate with 35 layers is extruded by the micro-layer co-extrusion device (3) The laminated material prepared in the step (2) enters a hanger die head provided with a slit outlet, and the laminated material is extruded into a melt film with 35 layers and a thickness of 50 μm; ( 4) The melt film is gradually thinned under the...

Embodiment 2

[0025] Such as figure 1 As shown, the preparation method of ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics in this example includes the following steps: (1) Raw material component A: a mixture of white oil and ultra-high modulus polyethylene And raw material component B: melt-blown polypropylene with a melt index of 410g / 10min is fed from the two screws of the twin-screw extruder respectively, wherein the weight ratio of white oil to ultra-high modulus polyethylene is 85:15 (2) In the step (1), component A and component B are introduced into a micro-layer co-extrusion device under the action of a twin-screw extruder, and a laminate with 200 layers is extruded through the micro-layer co-extrusion device (3) The laminated material prepared in the step (2) enters the clothes hanger die head with two slit outlets at equidistant intervals, and the laminated material is extruded into a molten metal with 200 layers and a thickness of 100 μm. Body...

Embodiment 3

[0027] Such as figure 1 As shown, the preparation method of ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics in this example includes the following steps: (1) Raw material component A: a mixture of white oil and ultra-high modulus polyethylene And raw material component B: melt-blown polypropylene with a melt index of 450g / 10min is fed from the two screws of the twin-screw extruder respectively, wherein the weight ratio of white oil to ultra-high modulus polyethylene is 50:50 (2) In the step (1), component A and component B are introduced into a micro-layer co-extrusion device under the action of a twin-screw extruder, and a laminate with 256 layers is extruded by the micro-layer co-extrusion device (3) The laminated material obtained in the step (2) enters a clothes hanger die head equipped with five slit outlets at equidistant intervals, and the laminated material is extruded into a molten metal with 256 layers and a thickness of 300 μm. B...

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Abstract

The invention discloses a preparation method of ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics, which comprises the following steps: (1) raw material component A and component B are respectively fed from two Screw feeding; (2) In the step (1), components A and B are introduced into the micro-layer co-extrusion device under the action of the screw extruder, and more than 30 layers of laminates are extruded through the micro-layer co-extrusion device. Layer material; (3) The laminate material prepared in the step (2) enters the hanger die head; (4) The melt film is gradually thinned under the action of the hot air flow of the drafting system until it is torn into fibers; (5) The fibers described in step (4) are received by a receiving web forming system to make ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics. The operation process of the present invention is simple and convenient, and a large amount of ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics can be obtained by using the reasonable combination of micro-layer co-extrusion technology and melt-blown technology, which is convenient for the next step of industrial application.

Description

technical field [0001] The invention belongs to the technical field of nano-nonwoven material preparation, and in particular relates to a preparation method of ultra-high modulus polyethylene and polypropylene nano-melt-blown non-woven fabrics. Background technique [0002] Nanotechnology is a research hotspot in the field of scientific research today. The preparation of nanofibers has always been the focus of many scientists. Among them, electrospinning has been confirmed by relatively systematic theoretical research and experiments in the past 10 years. Electrospinning technology has become an important method for preparing ultrafine fibers and nanofibers. However, this technology has extremely low output, single fiber structure, and can not achieve consistent fiber arrangement, most of which are disorderly and random. Hard to reproduce. [0003] Micro-layer co-extrusion technology has been developed for decades, but it has only been popularized and applied locally, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H3/16D04H3/007D01D5/00
Inventor 张迎晨吴红艳陈露鹏刘雪亚杨艳玉林振强于齐白小果周倩倩张晴文
Owner ZHONGYUAN ENGINEERING COLLEGE
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