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A kind of superfine fiber material with rough surface and preparation method thereof

An ultra-fine fiber and rough surface technology, which is applied in the field of meltblown nonwoven materials and their preparation, can solve the problems of high cost and complex preparation methods, and achieve the effect of wide source of raw materials and simple process technology route.

Active Publication Date: 2017-10-24
宁波德昇医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the present invention is to provide a rough surface ultrafine fiber material and its preparation method, so as to solve the problems of complex preparation method and high cost in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh polyvinyl chloride and polyethylene respectively according to the weight ratio of 40 / 60. The grade of polyvinyl chloride resin is WS-700, produced by Shanghai Chlor-Alkali Chemical Co., Ltd.; the grade of polyethylene is LL 6201RQ, produced by ExxonMobil. Add 3% by weight of barium stearate as heat stabilizer and 2% by weight of phthalate as plasticizer, mix and extrude to obtain mixed polymer pellets. The temperature of each section of the barrel of the extrusion granulator is set as follows: the first zone is 120°C, the second zone is 155°C, the third zone is 165°C, the fourth zone is 170°C, and the die head temperature is 165°C.

[0026] Add the above-mentioned mixed polymer pellets into the hopper of the melt-blown extruder, and set the temperature of each zone of the melt-blown extruder to be: 120°C in the first zone, 155°C in the second zone, 165°C in the third zone, and 170°C in the fourth zone. The temperature of the die head was 165° C., and the rotationa...

Embodiment 2

[0029] According to the weight ratio of 80 / 20, polypropylene and polyester were weighed respectively. The grade of polypropylene resin was M-1700, produced by Hyundai Company of South Korea; the grade of polyester was W321, produced by Yizheng Chemical Fiber Company. After mixing, extrude and granulate to obtain mixed polymer pellets. The temperature of each section of the barrel of the extrusion granulator is set as follows: the first zone is 150°C, the second zone is 200°C, the third zone is 260°C, the fourth zone is 300°C, and the die head temperature is 300°C.

[0030] Add the above-mentioned mixed polymer pellets into the hopper of the melt-blown extruder, and set the temperature of each zone of the melt-blown extruder to be: 150°C in the first zone, 200°C in the second zone, 250°C in the third zone, and 290°C in the fourth zone. The temperature of the die head is 280° C., and the rotation speed of the screw extruder is 150 rpm. Control the temperature of the drafting ho...

Embodiment 3

[0033] Weigh polyethylene / polylactic acid according to the weight ratio of 90 / 10. The grade of polyethylene resin is 7144, produced by Daqing Petrochemical Company; the grade of polylactic acid is fiber grade PLA, produced by Shenzhen Guanghua Weiye Co., Ltd., mixed and extruded to pelletize , to obtain mixed polymer pellets. The temperature of each section of the barrel of the extrusion granulator is set as follows: the first zone is 150°C, the second zone is 180°C, the third zone is 220°C, the fourth zone is 260°C, and the die head temperature is 260°C.

[0034] Add the above-mentioned mixed polymer pellets into the hopper of the melt-blown extruder, and set the temperature of each zone of the melt-blown extruder to be: 150°C in the first zone, 180°C in the second zone, 210°C in the third zone, and 250°C in the fourth zone. The temperature of the die head is 260° C., and the rotation speed of the screw extruder is 120 rpm. Control the temperature of the drafting hot air to ...

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Abstract

The invention discloses a superfine fiber material with rough surface and a preparation method thereof. The microfiber material with rough surface is characterized in that it is a melt-blown nonwoven material with roughness on the fiber surface, each fiber includes at least two polymers, and the two polymers form sea islands with a clear interface Or the island structure, so that the surface of the fiber presents a certain roughness. The preparation method is as follows: mix the two polymers in proportion to obtain mixed polymer pellets; add the mixed polymer pellets into the hopper of the melt-blown extruder, set the process parameters according to the different polymer systems, and carry out Melt-blown to obtain a melt-blown nonwoven material with roughness on the fiber surface. The present invention adopts two kinds of interface-incompatible polymers to form ultra-fine fibers with clear interface structure through melt-blown non-woven forming technology, so that the fibers exhibit a certain roughness and obtain ultra-fine fiber materials with rough surfaces .

Description

technical field [0001] The invention relates to a superfine fiber material with a rough surface and a preparation method thereof, in particular to a melt blown nonwoven material with a certain roughness on the fiber surface and a preparation method thereof. Background technique [0002] The wettability of material surfaces has always attracted people's attention, especially superhydrophobic surfaces. A superhydrophobic surface refers to a surface with a contact angle greater than 150° and a rolling angle less than 10°. Water droplets located on this surface are also prone to rolling under slight inclinations, so they have very excellent surface self-cleaning properties. However, for a smooth surface with uniform chemical properties, the contact angle will not be greater than 120°. Many studies have shown that the surface with micro-nano rough structure is an important reason for the formation of super-hydrophobic effect. Lighting, additives, electrical treatment, etc. are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F8/14D01F8/10
Inventor 王洪靳向煜吴海波黄健华刘嘉炜
Owner 宁波德昇医疗科技有限公司
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