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Preparation method of solvent-type nanofiber

A nanofiber and solvent technology, applied in spinning solution preparation, fiber processing, fiber chemical characteristics, etc., can solve the problems affecting the quality of the finished product, the static bending strength and internal bonding strength of nanofibers, and no preparation method. Equipment and working environment specifications and other problems to achieve the effect of improving the quality of finished products, good static bending strength and internal bonding strength

Inactive Publication Date: 2019-09-13
北京百年初心科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nanofiber refers to a thread-like material with a diameter of nanoscale and a large length with a certain aspect ratio. In addition, fibers that are modified by filling nanoparticles into ordinary fibers are also called nanofibers; in a narrow sense, The diameter of nanofibers is between 1nm and 100nm, but broadly speaking, fibers with a diameter of less than 1000mm are called nanofibers; among them, solvent-type nanofibers are widely used in the existing market, but the existing Solvent-type nanofiber formula materials are relatively simple, and the static bending strength and internal bonding strength of nanofibers in the later stage are relatively general, which affects the later use. Among them, the preparation method of solvent-type nanofibers is relatively simple, and the equipment and working environment in the preparation method are not standardized. Affect the quality of the finished product in the later stage

Method used

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Examples

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Effect test

Embodiment 1

[0023] A solvent-type nanofiber preparation method, comprising the following steps: Step 1, raw material selection; Step 2, spinning stock solution preparation; Step 3, ultrasonic vibration treatment; Step 4, electrostatic treatment; Step 5, preparing nanofibers; Step 6, Sterilization; step seven, storage;

[0024] Wherein in the above-mentioned step 1, according to the mass percentage content of each component, ethyl methacrylate 15%, isoamyl acrylic acid 15%, β-butyl itaconate 5%, 2-butenoic acid 15% , 3% of methyl maleic acid, 11% of acrylonitrile, 36% of dimethyl sulfoxide, and weighed according to the sum of the weight percentages being 1;

[0025] Wherein in above-mentioned step 2, ethyl methacrylate, isopropyl acrylic acid, β-butyl itaconate, dimethyl sulfoxide weighed in step 1 are added respectively in the reactor and reacted, and the reaction time is 1~3h, the reaction temperature is 100~120°C; then add 2-butenoic acid and methyl maleic acid in sequence for mixing a...

Embodiment 2

[0038] A solvent-type nanofiber preparation method, comprising the following steps: Step 1, raw material selection; Step 2, spinning stock solution preparation; Step 3, ultrasonic vibration treatment; Step 4, electrostatic treatment; Step 5, preparing nanofibers; Step 6, Sterilization; step seven, storage;

[0039] Wherein in the above-mentioned step 1, according to the mass percentage content of each component, ethyl methacrylate 20%, isoamyl acrylic acid 15%, β-butyl itaconate 5%, 2-butenoic acid 15% , methyl maleic acid 3%, acrylonitrile 11%, dimethyl sulfoxide 31%, and weighed according to the sum of the weight percentages being 1;

[0040] Wherein in above-mentioned step 2, ethyl methacrylate, isopropyl acrylic acid, β-butyl itaconate, dimethyl sulfoxide weighed in step 1 are added respectively in the reactor and reacted, and the reaction time is 1~3h, the reaction temperature is 100~120°C; then add 2-butenoic acid and methyl maleic acid in sequence for mixing and stirri...

Embodiment 3

[0053] A solvent-type nanofiber preparation method, comprising the following steps: Step 1, raw material selection; Step 2, spinning stock solution preparation; Step 3, ultrasonic vibration treatment; Step 4, electrostatic treatment; Step 5, preparing nanofibers; Step 6, Sterilization; step seven, storage;

[0054] Wherein in above-mentioned step 1, according to the mass percent content of each component, ethyl methacrylate 26%, isoamyl acrylic acid 15%, β-butyl itaconate 5%, 2-butenoic acid 15% , 3% methyl maleic acid, 11% acrylonitrile, 25% dimethyl sulfoxide, and weighed according to the sum of the percentages by weight being 1;

[0055] Wherein in above-mentioned step 2, ethyl methacrylate, isopropyl acrylic acid, β-butyl itaconate, dimethyl sulfoxide weighed in step 1 are added respectively in the reactor and reacted, and the reaction time is 1~3h, the reaction temperature is 100~120°C; then add 2-butenoic acid and methyl maleic acid in sequence for mixing and stirring, ...

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Abstract

The invention discloses a preparation method of solvent-type nanofiber. The preparation method comprises the following steps: 1, selecting raw materials; 2, preparing a spinning stock solution; 3, performing ultrasonic vibration treatment; 4, performing electrostatic treatment; 5, preparing the nanofiber; 6, sterilizing and disinfecting; 7, storing, wherein in the step 1, in mass percentage, the raw materials include 15-26% of ethyl methacrylate, 12-15% of isobutyl acrylate, 1-5% of beta-butyl itaconate, 15-25% of 2-butenoic acid, 3-11% of methyl maleic acid, 8-11% of acrylonitrile and 25-45%of dimethyl sulfoxide, and the raw materials are weighed according to the sum 1 of weight percentages. By the preparation method, the steps are perfected and the temperature and equipment in the method are normalized, so that the nanofiber prepared in the later stage has very good static bending strength and internal bonding strength under the premise that good characteristics of the original nanofiber are maintained, and thus use of the nanofiber in the later stage is facilitated.

Description

technical field [0001] The invention relates to the technical field of nanofiber preparation, in particular to a solvent-type nanofiber preparation method. Background technique [0002] Nanofiber refers to a thread-like material with a diameter of nanoscale and a large length with a certain aspect ratio. In addition, fibers that are modified by filling nanoparticles into ordinary fibers are also called nanofibers; in a narrow sense, The diameter of nanofibers is between 1nm and 100nm, but broadly speaking, fibers with a diameter of less than 1000mm are called nanofibers; among them, solvent-type nanofibers are widely used in the existing market, but the existing Solvent-type nanofiber formula materials are relatively simple, and the static bending strength and internal bonding strength of nanofibers in the later stage are relatively general, which affects the later use. Among them, the preparation method of solvent-type nanofibers is relatively simple, and the equipment and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/36D06M10/00D01D1/02D01D5/00D01D13/00
CPCD01D1/02D01D5/003D01D13/00D01F6/36D06M10/001
Inventor 崔建中
Owner 北京百年初心科技有限公司
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