Polyamide composite fibers with intelligent surfaces and preparation method and application of polyamide composite fibers

Abstract

The invention discloses polyamide composite fibers with intelligent surfaces and a preparation method and application of the polyamide composite fibers. The polyamide composite fibers comprise a polyamide fiber matrix and particles which cover the polyamide fiber matrix, so that the roughness of the fibers can be improved by covering the surface of the fiber matrix with the particles, the hydrophobicity of the fibers is further improved, and the condition of poor dimensional stability caused by strong hygroscopicity of the polyamide fibers is improved. The preparation is carried out as follows: firstly, obtaining a polyamide fiber matrix with reactive groups on the surface; secondly, obtaining particles with reactive functional groups; and finally, mixing and reacting the polyamide fiber matrix and the particles to obtain the polyamide composite fibers. The polyamide composite fibers can be used for intelligent textiles, non-woven fabrics, porous films, composite materials and oil-water separators, and is preferably used for intelligent textiles and oil-water separators.

Description

technical field [0001] The invention belongs to the field of fiber materials, in particular to polyamide fibers, in particular to a polyamide composite fiber with an intelligent surface and its preparation method and application. Background technique [0002] Polyamide is a general term for polymer compounds containing amide bonds in the main chain. Polyamide fiber materials are widely used in various fields such as fabrics, filter materials, and catalysis. However, the strong hygroscopicity of traditional polyamide fibers makes them different from polyamide fibers. The ester has good dimensional stability, but its dimensional stability is poor, and the hydrophilic and hydrophobic properties of the material can be improved by changing the roughness or surface energy of the material surface. [0003] In the prior art, surface etching is used to improve the roughness, thereby improving the hydrophilicity and hydrophobicity of the surface. However, the etching will reduce the m...

AI Technical Summary

Problems solved by technology

[0002] Polyamide is a general term for polymer compounds containing amide bonds in the main chain. Polyamide fiber materials are widely used in various fields such as fabrics, filter materials, and catalysis. However, the strong hygroscopicity of traditional polyamide fibers makes them different from polyamide fibers. The good dimensional stability of ester, its poor dimensional stability, and the hydrophilicity and hydrophobicity of the material can be improved by changing the roughness or surface energy of the material surface

[0003] In the prior art, it involves increasing the roughness by surface etching, thereby improving the hydrophilicity and hydrophobicity of the surface. However, the etching will reduce the mechanical properties of the material to a certain extent, thereby reducing its practicability.

[0004] In the prior art, it also involves the use of silica particles to modify the surface of the material, thereby improving the hydrophilic and hydrophobic properties of the material. However, the modification mostly uses physical modification, and its performance is unstable, or, even if it is chemical Modified, its efficiency is also lower

Images