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Method for preparing bamboo charcoal and polyamide composite fibers by in situ polymerization

A technology of bamboo charcoal polyamide and composite fiber, which is applied in the direction of single-component polyamide artificial filaments, etc., and can solve problems such as uneven dispersion

Inactive Publication Date: 2013-07-03
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to solve the non-uniform dispersion problem of bamboo charcoal in the high polymer matrix by in-situ polymerization, to provide a kind of raw material that is easy to get, and can utilize conventional polyamide fiber industrial spinning method, adopt melt spinning Method for preparing novel bamboo charcoal polyamide composite fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: a kind of in-situ polymerization prepares the method for bamboo charcoal polyamide composite fiber, comprises the steps: (1) measure and weigh adipic acid 134.4 Kg, solvent methanol 537.6 Kg, prepare 20% adipic acid methanol solution; Diamine 105.6 Kg, solvent methanol 105.6 Kg, prepare 50% hexamethylenediamine methanol solution; nano-modified bamboo charcoal powder 6.3 Kg, the above raw materials are added to a stainless steel polymerization reactor for intermediate reaction, cooling, crystallization, and centrifugation after the reaction , washed and filtered to obtain the composite 66 salt for preparing bamboo charcoal polyamide composite melt.

[0020] (2) Prepare the compound 66 salt prepared in step (1) into a 50% aqueous solution, add 0.5% adipic acid and 2% caprolactam (based on the weight of 66 salt), and place it in an autoclave for polycondensation reaction . The material is pre-condensed at 210-215°C and 1764 kPa, and then flashed at normal pr...

Embodiment 2

[0022] Embodiment 2: a kind of in-situ polymerization prepares the method for bamboo charcoal polyamide composite fiber, comprises the steps: (1) measure and weigh adipic acid 134.4 Kg, solvent methanol 537.6 Kg, prepare 20% adipic acid methanol solution; Diamine 105.6 Kg, solvent methanol 105.6 Kg, prepare 50% hexamethylenediamine methanol solution; nano-modified bamboo charcoal powder 14.7 Kg, the above raw materials are added to a stainless steel polymerization reactor for intermediate reaction, cooling, crystallization and centrifugation after the reaction , washed and filtered to obtain the composite 66 salt for preparing bamboo charcoal polyamide composite melt.

[0023] (2) Prepare the compound 66 salt prepared in step (1) into a 50% aqueous solution, add 0.5% adipic acid and 2% caprolactam (based on the weight of 66 salt), and place it in an autoclave for polycondensation reaction . The material is pre-condensed at 210-215 °C and 1764 kPa, and then flashed at normal p...

Embodiment 3

[0025] Embodiment 3: a kind of in-situ polymerization prepares the method for bamboo charcoal polyamide composite fiber, comprises the steps: (1) measure and weigh adipic acid 161.3 Kg, solvent methanol 645.2 Kg, prepare 20% adipic acid methanol solution; Diamine 126.7 Kg, solvent methanol 126.7 Kg, prepare 50% hexamethylenediamine methanol solution; nano-modified bamboo charcoal powder 22.7 Kg, the above raw materials are added to a stainless steel polymerization reactor for intermediate reaction, cooling, crystallization, and centrifugation after the reaction , washed and filtered to obtain the composite 66 salt for preparing bamboo charcoal polyamide composite melt.

[0026] (2) Prepare the compound 66 salt prepared in step (1) into a 50% aqueous solution, add 0.5% adipic acid and 2% caprolactam (based on the weight of 66 salt), and place it in an autoclave for polycondensation reaction . The material is pre-condensed at 210-215°C and 1764 kPa, and then flashed at normal p...

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Abstract

The invention relates to a method for preparing bamboo charcoal and polyamide composite fibers by in situ polymerization. The method comprises the following steps of: adding two polymerization monomers, a solvent, and bamboo charcoal modified nano micropowder to a stainless steel polymerization reaction kettle, carrying out an intermediate reaction, after the reaction is finished, cooling, crystallizing, centrifugally separating, washing and filtering to obtain a composite 66 salt for preparing a bamboo charcoal and polyamide composite melt; preparing the composite 66 salt into an aqueous solution, then adding to an autoclave, carrying out an intermittent or continuous melt polycondensation reaction to obtain the bamboo charcoal and polyamide composite melt, and carrying out melt spinningwith a melt spinning machine to obtain nascent filament fibers; and drying the nascent filament fibers, oiling, stretching, shaping, and winding to obtain bamboo charcoal and polyamide composite fiber filaments or cutting the fibers to obtain chopped fibers. By in situ polymerization, the bamboo charcoal nano modified micropowder is highly dispersed in a polymer matrix, thus the continuous stability of fiber preparation is improved, the fiber processing performance is excellent, and the physical and mechanical properties of the bamboo charcoal fibers are improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional fibers, and in particular relates to a method for preparing bamboo charcoal polyamide composite fibers through an in-situ polymerization process. Background technique [0002] As green energy and low-carbon economy become more and more popular in the 21st century, the market competition of chemical fibers is becoming more and more fierce. Many famous chemical fiber enterprises have strengthened the research and development of functional fibers, chemical modification, physical modification and molecular Design and other means have become a new method for preparing new functional fibers. The light and heat stability, antistatic, electrical conductivity, flame retardancy, hygroscopicity, and bulkiness of the original chemical fibers have been greatly improved. [0003] Bamboo is a renewable resource, and its pyrolysis products under high temperature and anoxic conditions are bamboo ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/90D01F1/10C08G69/36C08K9/02C08K3/04
Inventor 王艳芝袁祖培张旺玺王志新
Owner ZHONGYUAN ENGINEERING COLLEGE
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