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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
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  • 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

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

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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 ...

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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

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Application Information

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IPC IPC(8): D01F6/90D01F1/10
CPCD01F1/10D01F6/90
Inventor 陈英波张雪
Owner TIANJIN POLYTECHNIC UNIV
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