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Copolymerized functional nylon 6 polymer and preparation method thereof

A copolymerization type, polymer technology, applied in the direction of single-component synthetic polymer rayon, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of poor product stability, low binding fastness of cationic dyes and nylon 6, etc., to achieve Good compatibility, improved flame retardant performance and dyeing performance, and improved stability

Active Publication Date: 2019-05-10
JIANGSU NEW HORIZON ADVANCED FUNCTIONAL FIBER INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nylon 6 fiber of the prior art lacks groups capable of combining with cationic dyes, so that the binding fastness between cationic dyes and nylon 6 is low. In addition, its preparation process also requires hydrothermal extraction, resulting in poor product stability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A kind of preparation method of copolymerization type functional nylon 6 polymer, concrete steps are as follows:

[0068] (1) At a temperature of 250°C, ethylene glycol, [(6-oxo-6H-dibenzo[c,e][1,2]oxaphosphorin-6-yl)methanol Base] succinic acid and hexamethylenediamine adipate were mechanically stirred at a speed of 60r / min for 10min to complete the mixing and then carry out esterification reaction to obtain a functional dibasic acid ester compound; the hydroxyl functional group of ethylene glycol and [(6-oxo The molar ratio of the carboxyl functional groups of generation-6H-dibenzo[c,e][1,2]oxaphosphorin-6-yl)methyl]succinic acid is 2.01:1, hexamethylenediamine adipate The added amount of ethylene glycol is 0.1wt% of the added amount of ethylene glycol, and the termination condition is that the water output of the esterification reaction reaches 95% of the theoretical water output;

[0069] (2) At a temperature of 80°C, mix 2-carboxyethylphenylphosphinic acid, caprol...

Embodiment 2

[0079] A kind of preparation method of copolymerization type functional nylon 6 polymer, concrete steps are as follows:

[0080] (1) At a temperature of 300°C, butanediol, phthalic acid sulfonate and NH 2 (CH 2 ) 5 COOH was mechanically stirred at a speed of 240r / min for 60min to complete the mixing, and then carried out esterification reaction to obtain a functional dibasic acid ester compound; the molar ratio of the hydroxyl functional group of butanediol to the carboxyl functional group of C was 2.20:1, and the NH 2 (CH 2 ) 5 The amount of COOH added is 1wt% of the amount of butanediol added, and the termination condition is that the water output of the esterification reaction reaches 98% of the theoretical water output;

[0081] (2) At a temperature of 140°C, [(6-oxo-6H-dibenzo[c,e][1,2]oxaphosphorin-6-yl)methyl]butanedi Acid, caprolactam, deionized water, NH 2 (CH 2 ) 6 COOH and accelerator were mixed to obtain a mixture; [(6-oxo-6H-dibenzo[c,e][1,2]oxaphosphorin-...

Embodiment 3

[0091] A kind of preparation method of copolymerization type functional nylon 6 polymer, concrete steps are as follows:

[0092] (1) At a temperature of 260°C, propylene glycol, 2-carboxyethylphenylphosphinic acid and NH 2 (CH 2 ) 7 COOH carries out esterification reaction with the rotating speed mechanical stirring 30min of 120r / min and completes mixing and obtains functional dibasic acid ester compound; The mol ratio 2.15 of the hydroxyl functional group of propylene glycol and the carboxyl functional group of 2-carboxyethylphenylphosphinic acid: 1, NH 2 (CH 2 ) 7 The amount of COOH added is 0.5wt% of the amount of propylene glycol added, and the termination condition is that the water output of the esterification reaction reaches 96% of the theoretical water output;

[0093] (2) At a temperature of 120°C, mix phthalic acid sulfonate, caprolactam, deionized water, hexamethylenediamine adipate and accelerator to obtain a mixture; phthalic acid sulfonate, deionized The a...

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Abstract

The invention relates to a copolymerized functional nylon 6 polymer and a preparation method thereof. The preparation method includes the steps: mixing a nylon 6 prepolymer ester and a functional dibasic acid ester and then performing ester exchange reaction to prepare the copolymerized functional nylon 6 polymer; preparing a diacid terminated nylon 6 prepolymer from caprolactam and B, adding dihydric alcohol E1 and performing reaction on the dihydric alcohol E1 and end group carboxyl to prepare the nylon 6 prepolymer ester. B is functional diacid A1 and / or functional diacid derivative D1, dihydric alcohol E2 reacts with C to prepare a functional diacid ester, and C is functional diacid A2 and / or functional diacid derivative D2. The hot water extractable matter content of the prepared copolymerized functional nylon 6 polymer is 0.5-2wt%. The copolymerized functional nylon 6 polymer is simple in process, excellent in performance and good in application prospect, and spinning can be performed without hot water extraction.

Description

technical field [0001] The invention belongs to the technical field of polymer copolymer preparation, and relates to a copolymerized functional nylon 6 polymer and a preparation method thereof. Background technique [0002] Due to its excellent physical and mechanical properties and textile processing properties, nylon fiber has ranked first in the synthetic fiber family for a long period of time since its inception. In recent years, due to price and production cost constraints and polyester With the rapid development of fiber, it is still the second largest synthetic fiber. In 2017, my country's nylon production has exceeded 3 million tons, a year-on-year increase of nearly 10%. Nylon fiber has excellent physical properties unmatched by polyester fiber. For example, nylon fiber has high breaking strength, wear resistance ranks first among general textile fibers, good hygroscopicity, excellent elastic recovery rate and fatigue resistance, and good dyeability. In addition t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/44D01F6/82
Inventor 王朝生张圣明王华平吉鹏王宇张婉迎卢丹萍
Owner JIANGSU NEW HORIZON ADVANCED FUNCTIONAL FIBER INNOVATION CENT CO LTD
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