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Method for preparing nylon nano-fiber/polyolefin hybrid shish-kebab

A nanofiber and nylon fiber technology, applied in fiber processing, filament/thread forming, single-component polyamide artificial filament, etc., can solve the problems of reducing strength, dispersion and bonding, etc., and achieve high strength and low cost , Improve the effect of mechanical properties

Inactive Publication Date: 2012-02-08
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dispersion of these inorganic fillers with nanoscale diameters in the polymer and the bonding between them and the polymer interface have also become technical difficulties.
When good dispersion is achieved through modification, its strength is usually reduced

Method used

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  • Method for preparing nylon nano-fiber/polyolefin hybrid shish-kebab
  • Method for preparing nylon nano-fiber/polyolefin hybrid shish-kebab
  • Method for preparing nylon nano-fiber/polyolefin hybrid shish-kebab

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: A kind of preparation method of nylon nanofiber / polyolefin hybrid string crystal

[0034] The preparation method of the nylon nanofiber / polyolefin hybrid skewers of the present invention, the detailed steps of the preparation method are as follows:

[0035] a. Dissolve nylon 66 EPR27 in organic solvent formic acid at 70°C, and prepare a nylon solution with a concentration of 15% by mass after dissolving;

[0036] b. Use an electrospinning device to prepare the nylon solution prepared in step a. The spinning temperature is 30°C, the spinning humidity is 0RH, the voltage is 25KV, the receiving distance is 25cm, and the receiving device is a cover glass placed on an aluminum plate. Electrospinning is carried out under electrospinning, and nanoscale nylon fibers are prepared after electrospinning, and the obtained nanoscale nylon fibers are loaded on the cover glass;

[0037] c. Weigh the raw material polyethylene and dissolve it in the organic solvent xylene...

Embodiment 2

[0040] Embodiment 2: basically the same as Embodiment 1, the difference is:

[0041] The preparation method of nylon nanofiber / polyolefin hybrid string crystal of the present invention, the difference between this preparation method and embodiment 1 is:

[0042] In step a: Nylon 66 EPR27 is dissolved in the organic solvent formic acid at 50°C, and after dissolving, a nylon solution with a concentration of 10% by mass is prepared;

[0043] In step b: the spinning temperature is 35°C, the spinning humidity is 10RH, the voltage is 20KV, and the receiving distance is 20cm;

[0044] In step c: weighing the raw material polypropylene and dissolving it in the organic solvent xylene at a constant temperature of 135°C, and preparing a polypropylene solution with a mass percentage concentration of 0.2% after dissolving;

[0045] In step d: constant temperature at 135°C for 4 minutes; after constant temperature, lower the temperature to 110°C and crystallize at constant temperature for 15...

Embodiment 3

[0047] Embodiment 3: basically the same as Embodiment 1, the difference is:

[0048] The preparation method of nylon nanofiber / polyolefin hybrid string crystal of the present invention, the difference between this preparation method and embodiment 1 is:

[0049] In step a: Nylon 66 EPR27 is dissolved in the organic solvent formic acid at 60°C, and after dissolving, a nylon solution with a concentration of 20% by mass is prepared;

[0050] In step b: the spinning temperature is 25°C, the spinning humidity is 20RH, the voltage is 30KV, and the receiving distance is 30cm;

[0051] In step c: Weigh the raw material polyethylene and dissolve it in the organic solvent xylene at a constant temperature of 130°C, and prepare a polyethylene solution with a mass percentage concentration of 0.15% after dissolving;

[0052] In step d: constant temperature at 130° C. for 5 minutes; after constant temperature, reduce the temperature to 95° C. and crystallize at constant temperature for 10 m...

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Abstract

The invention discloses a method for preparing a nylon nano-fiber / polyolefin hybrid shish-kebab. The method comprises the following steps: nylon 66 is dissolved in solvent to prepare a nylon solution; the prepared nylon solution is electrospun by using a static spinning device to prepare nano-grade nylon fiber, and the nano-grade nylon fiber is loaded on cover glass; a raw material polyolefin is dissolved in organic solvent under a constant temperature condition to prepare a polyolefin solution; the cover glass on which the electrospun nano-grade nylon fiber is loaded is put in the prepared polyolefin solution to perform constant temperature crystallization; the cover glass is cleaned with pure dimethylbenzene after constant temperature crystallization, and is dried to prepare the nylon nano-fiber / polyolefin hybrid shish-kebab loaded on the cover glass. By the method, massive feature-controllable nylon nano-fiber / polyolefin hybrid shish-kebag structures can be prepared, so that the mechanical performance of the polyolefin composite material can be remarkably improved.

Description

Technical field [0001] The present invention involves a preparation method of a polymerized string crystal, especially the preparation method of a nylon nano -fiber / polyolefin hybrid string crystal. Background technique [0002] At present, the technology of preparing nano -level polymer fibers through electrostatic spinning is becoming increasingly mature, and nano -level polymer fibers have improved the mechanical performance and thermal performance of materials due to a very large long diameter ratio and recycling.effect.The large -scale production of nano fibers in industry provides possibilities for expanding its industrial application.Nylon has always been applied to daily life as a good spinning material.Similarly, for the emerging electrostatic spinning technology, Nylon 66's electrostatic spinning technology is also very mature.On the one hand, nylon 66 contains amide, and its conductivity is relatively better in the polymer; and nylon 66 can be dissolved in methic acid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L23/00C08L23/06C08L23/12D01F6/60D01D5/00
Inventor 郑国强梁艳艳韩文娟张荣正刘双阳刘春太代坤申长雨
Owner ZHENGZHOU UNIV