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Method for modifying chinlon 6 fibers and modified product

A fiber and nylon technology, which is applied to a method of modifying nylon 6 fiber and the field of modified products, can solve the problems of easy deformation, small Young's modulus, and poor heat resistance, and expand the scope of application , the effect of enhancing the breaking strength and Young's modulus

Inactive Publication Date: 2015-04-29
淮安锦纶化纤有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small Young's modulus and poor heat resistance of nylon 6, it is easy to deform during use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Commercially available powdered crystalline caprolactam is heated and melted in a melting furnace at 80°C to 90°C to form caprolactam liquid. Then the graphene oxide powder and deionized water are added to the caprolactam molten liquid according to the amount of 0.01%-1% and 1.3% of the weight of caprolactam respectively. The two can be added at the same time or in sequence, and then mechanically Stir to obtain a well-mixed mixed fluid.

[0024] Polymerize the mixed fluid in a polymerization tank. The polymerization is divided into two steps: pre-polymerization and post-polymerization. Specifically, firstly, heat preservation and polymerization at 270~280°C and 0.23MPa for 4 hours, and then at 250 Polymerization at ~260°C and -0.09~-0.03MPa for 14 hours.

[0025] The fluid formed by the polymerization is passed into the pelletizer, injected and pressed, and sliced ​​to form solidified polycaprolactam slices.

[0026] Pass the polycaprolactam slices into the extraction...

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PUM

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Abstract

The invention belongs to the field of materials, particularly belongs to the field of fiber materials, and more particularly relates to a method for modifying chinlon 6 fibers and a modified product. The invention aims at improving a mixing manner of modified graphene so that the dispersity of graphene in the chinlon 6 fibers is improved. In order to realize the aim, the invention discloses the method for modifying the chinlon 6 fibers. The method comprises the specific steps: heating hexanolactam and smelting; adding graphene oxide powder and de-ionized water; polymerizing mixed fluid in two steps; introducing the polymerized fluid into a granulator to be sliced; and extracting the fluid, drying, smelting, spinning, extruding, cooling, coating oil, stretching and winding in sequence to form the enhanced chinlon 6 fibers. Graphene oxide can be effectively and uniformly dispersed into the chinlon 6 fibers, and furthermore, the breaking strength and the Young modulus of the chinlon 6 fibers are enhanced, and the application range of the chinlon 6 fibers is expanded.

Description

technical field [0001] The invention belongs to the field of materials, in particular to the field of fiber materials, and more specifically relates to a method for modifying nylon 6 fiber and a modified product. Background technique [0002] The scientific name of nylon 6 is polycaprolactam, also known as nylon 6. It is a polycaprolactam fiber formed by polymerization and spinning of monomer caprolactam. It has a series of advantages such as high mechanical strength, small specific gravity, good toughness, wear resistance, and weak acid and alkali resistance. Therefore, nylon 6 is not only suitable for civilian use, but also widely used in industry. One of the best fiber materials for cloth and fishing nets, ropes, containers and military products. However, due to the small Young's modulus and poor heat resistance of nylon 6, it is easy to deform during use. Therefore, improving the strength and Young's modulus of nylon 6 is the key research direction of nylon 6 fiber m...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/10D01D5/08D01D5/16D01D10/02D01D5/088C08G69/16
Inventor 朱广道陈焕军孙建峰丁康
Owner 淮安锦纶化纤有限公司
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