Polyester composite fiber with intelligent surface, and preparation method and application thereof

Abstract

The invention discloses a polyester composite fiber with an intelligent surface, and a preparation method and application thereof. The polyester composite fiber comprises a polyester fiber matrix andparticles covering the polyester fiber matrix, wherein the particles and the polyester fiber matrix are chemically bonded; preferably, the particles are polymer particles; more preferably, the particles are polymer particles with environmental response; thus, covering of the surface of the polyester fiber matrix with the particles can improve the hydrophilicity and hydrophobicity of the fiber andendows the fiber with certain environmental response. The preparation method comprises the following steps: preparing the polyester fiber matrix having reactive groups on the surface at first; then preparing the particles having reactive functional groups; and finally, mixing the polyester fiber matrix and the particles for a reaction so as to obtain the polyester composite fiber. The polyester composite fiber of the invention can be used for smart textiles, non-woven fabrics, porous films, composite materials and oil-water separators, preferably for smart textiles and oil-water separators.

Description

technical field [0001] The invention belongs to the field of fiber materials, and in particular relates to polyester fibers, in particular to a polyester composite fiber with an intelligent surface and its preparation method and application. Background technique [0002] Polyester is a general term for polymer compounds containing ester bonds in the main chain, and is generally formed by condensation polymerization of dibasic acids and dibasic alcohols. Polyester fiber materials are widely used in various fields such as fabrics, filter materials, catalysis, etc. However, traditional polyester fibers generally have smooth and uniform surface properties, so so far its application is mainly determined by the properties of the fiber itself. The change of the hydrophilic and hydrophobic properties of the fiber surface seriously affects its performance, and the hydrophilic and hydrophobic properties of the material can be improved by changing the roughness or surface energy of the...

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Problems solved by technology

[0003] In the prior art, it involves improving the roughness by surface etching, thereby improving the hydrophilicity and hydrophobicity of the surface, but 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 lower

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