Preparation method of polyamide 6/perylene tetracarboxylic dianhydride colored nano-fibers

A technology of perylenetetracarboxylic dianhydride and nanofibers, which is applied in the field of preparation of colored nanofibers of polyamide 6/perylenetetracarboxylic dianhydride, which can solve the problems of high color fixing costs, color shifts, streaks, etc., and improve acid resistance , High tensile strength, simple preparation process

Inactive Publication Date: 2018-08-10
TIANJIN POLYTECHNIC UNIV
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nylon 6 fiber is dyed with acid dyes, and there are always troubles such as color shift, streaks, and high color fixing costs. It is still a top priority to develop new dyes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polyamide 6/perylene tetracarboxylic dianhydride colored nano-fibers

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] A preparation method of polyamide 6 / perylenetetracarboxylic dianhydride colored nanofibers is characterized in that it comprises the following preparation steps:

[0025] Step 1. Weigh caprolactam, 6-aminocaproic acid, manganese chloride (0.001-0.005g), perylenetetracarboxylic dianhydride, and hypophosphorous acid (0.0025-0.0075g) into a four-necked flask, open the condensed water, and start Infuse nitrogen for 5 minutes, then heat it to melt and start stirring under nitrogen protection atmosphere, heat, and the medicine begins to melt, increase the voltage by one step every 10-20 minutes, continue to increase the temperature, constant temperature reaction 2-3 hours, then gradually raise the temperature to 250-270°C, and react at a constant temperature for 4-5h. After the reaction, pour the polymer out of the reaction vessel to obtain polyamide 6 / perylenetetracarboxylic dianhydride polymer, and turn off the nitrogen and cold water;

[0026] Step 2. Weigh the polyamide ...

Embodiment 1

[0035] (1) Preparation of polyamide 6 / perylenetetracarboxylic dianhydride polymer:

[0036] Weigh caprolactam 36g, 6-aminocaproic acid 4g, manganese chloride (0.001g), perylenetetracarboxylic dianhydride 0.4g, hypophosphorous acid (0.0025g) and add in the four-necked flask, open the condensed water, start feeding nitrogen 5 Minutes, then under nitrogen protection atmosphere, heat it to melt and start to stir, heat, the medicine starts to melt, increase the voltage by a small grid every 10 minutes, continue to increase the temperature, the constant temperature reaction time can be 2.5 hours, and then Gradually raise the temperature to 260° C., and react at a constant temperature for 4.5 hours. After the reaction, pour the polymer out of the reaction vessel to obtain a polyamide 6 / perylenetetracarboxylic dianhydride polymer, and turn off nitrogen and cold water.

[0037] (2) Preparation of polyamide 6 / perylenetetracarboxylic dianhydride spinning solution:

[0038] Weigh 15 g of...

Embodiment 2

[0042] (1) Preparation of polyamide 6 / perylenetetracarboxylic dianhydride polymer:

[0043] Weigh 18g of caprolactam and 2g of 6-aminocaproic acid, add them into a four-necked flask, open the condensed water, and start feeding nitrogen gas for 4 minutes, then heat it to melt and start stirring under nitrogen protection atmosphere, after stirring for half an hour, Add 0.2 g of perylene tetracarboxylic dianhydride at this time, continue heating, heat to 180° C. with a heating mantle and keep the temperature for 1 hour, then heat the temperature to 260° C., and keep the temperature for 6 hours to obtain polyamide 6 / perylene tetracarboxylic acid dianhydride. Formic dianhydride polymer, turn off nitrogen and cold water.

[0044] (2) Preparation of polyamide 6 / perylenetetracarboxylic dianhydride spinning solution:

[0045] Weigh 10 g of polyamide 6 / perylenetetracarboxylic dianhydride polymer, add 15 g of formic acid solution, put a rotor into the solution at the same time, stir on ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of functional materials and in particular relates to a preparation method of polyamide 6 / perylenetetracarboxylic dianhydride colored nano-fibers. The preparation method of the polyamide 6 / perylene tetracarboxylic dianhydride colored nano-fibers comprises the following steps: (1) preparing a polyamide 6 / perylene tetracarboxylic dianhydride polymer; (2) preparing a polyamide 6 / perylene tetracarboxylic dianhydride spinning solution; (3) preparing the polyamide 6 / perylene tetracarboxylic dianhydride colored nano-fibers. The polyamide 6 / perylene tetracarboxylic dianhydride polymer is obtained by utilizing in-situ polymerization and formic acid is added to dissolve a obtained polymerized material to form a solution; then the polyamide 6 / perylene tetracarboxylic dianhydride colored nano-fibers are prepared by utilizing electrostatic spinning.

Description

technical field [0001] The invention belongs to the field of fiber preparation, in particular to a method for preparing polyamide 6 / perylenetetracarboxylic dianhydride colored nanofibers. Background technique [0002] Polyamide 6 itself has excellent comprehensive properties such as wear resistance, oil resistance, self-lubrication, insulation, excellent mechanical properties, easy processing and molding, and weak acid and alkali resistance, but ordinary polyamide 6 also has the defects of low dry state and low temperature impact strength. , so that its application is limited to a certain extent, and it cannot meet the needs of high-strength materials in industries such as automotive electronics and machinery. Various methods have been used to toughen and modify ordinary nylon at home and abroad. The toughened polyamide 6 is widely used in transportation, electronic appliances, consumer goods, machinery industry and other industries. [0003] Since 1935, Carothers, an outst...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D01F6/90D01F1/10
CPCD01F1/10D01F6/90
Inventor 陈英波张雪
Owner TIANJIN POLYTECHNIC UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap