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Surface wrinkled fiber type material and preparing method thereof

A wrinkle and fiber technology, which is applied in the preparation of micro-nano-scale patterns, surface wrinkled fiber materials and their preparation, can solve the problems of uneven ring wrinkles, inability to penetrate long fibers, roughness, etc., and achieve excellent performance.

Active Publication Date: 2020-08-07
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: shaped fibers produce uneven annular folds after processing, porous fibers produce rough porous surface structures after processing, and fibers with skin-core structure produce annular folds in local areas after processing. After processing, many morphological structures are produced along the fiber axis, but orderly wrinkles are only produced in a small part of the area, and the pleats are incoherent and cannot run through the entire long fiber; or they are only periodic in the circumferential direction, making them hydrophobic , The optical performance is far from meeting the requirements
And it is usually necessary to pre-stretch the single fiber before processing the single fiber, the process is complicated and difficult to control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Surface wrinkled fiber type material and preparing method thereof
  • Surface wrinkled fiber type material and preparing method thereof
  • Surface wrinkled fiber type material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A method for preparing a surface wrinkled fiber fabric, comprising the steps of:

[0065] (1) Preparation of coating liquid: polydimethylsiloxane (molecular weight: 200,000) (liquid oligomer) and ethanol are stirred and mixed uniformly to prepare coating liquid, and the weight ratio of resin in the coating liquid is 0.5%;

[0066] (2) Material surface coating: make polyester fiber (solid structure, circular cross section) into polyester fabric (thickness 0.4mm), and finally soak the polyester fabric into the coating solution prepared in step (1) Then take it out and dry it to obtain a polyester fabric coated with a coating on the surface; wherein, the soaking time is 60s, and the soaking temperature is 22°C; the drying is natural drying for 30 minutes;

[0067] (3) Plasma treatment: Plasma treatment is performed on the front and back of the polyester fabric coated with a coating on the surface, and the treatment is repeated twice to obtain a wrinkled polyester fabric; ...

Embodiment 2

[0074] A method for preparing a fiber with a partially wrinkled surface, comprising the steps of:

[0075] (1) Preparation of coating liquid: Polymethyl methacrylate (molecular weight: 150,000) (liquid oligomer) and toluene are mixed uniformly to prepare coating liquid, and the weight ratio of resin in the coating liquid is 2 %;

[0076] (2) Coating film on the surface of the material: Soak the aramid fiber (solid structure, circular in cross section) into the coating liquid prepared in step (1) and then take it out and dry it to obtain the aramid fiber coated with a coating on the surface Fiber; wherein, soaking time is 50s, soaking temperature is 23°C; drying is 50°C for 10min;

[0077] (3) Plasma treatment: the local area of ​​the aramid fiber coated with the coating is subjected to plasma treatment (such as Figure 4 As shown), the rest of the area is covered with a metal plate, and the plasma cannot penetrate, that is, aramid fiber with a partially wrinkled surface; whe...

Embodiment 3

[0080] A method for preparing an optical fiber with a partially wrinkled surface, comprising the steps of:

[0081] (1) Preparation of coating liquid: Polydimethylsiloxane (molecular weight: 100,000) (liquid oligomer) and toluene are stirred and mixed uniformly to obtain a coating liquid. The weight ratio of PDMS in the coating liquid is 4.5%;

[0082] (2) Partial coating on the surface of the material: soak part of the optical fiber (skin-core structure) into the coating solution prepared in step (1) and then take it out and dry it to obtain an optical fiber with a partially coated surface. The schematic diagram is as follows Figure 5 Shown; Among them, soaking time is 55s, soaking temperature is 25°C; drying is 60°C for 7 minutes;

[0083] (3) Plasma treatment: Plasma treatment is performed on the optical fiber partially coated with a coating on the surface to obtain an optical fiber with a partially wrinkled surface; wherein, the parameters of the plasma treatment are: po...

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Abstract

The invention relates to a surface wrinkled fiber type material and a preparing method thereof. The method comprises the steps that firstly, coating liquid made of resin and a diluent is prepared; secondly, a material is soaked in the coating liquid and then is taken out to be dried; and a material with the surface coated with a coating is obtained; and thirdly, the material with the surface coated with the coating is subjected to plasma treatment to obtain a surface wrinkled material. A fiber with the wrinkled surface is composed of a fiber base body and the resin coating liquid coating whichcoats the surface of the fiber base body, a wrinkled structure is annularly mounted on the fiber surface in the length direction of the fiber, the contact angle between the surface wrinkled fiber fabric made of the fiber and the water is larger than 150 degrees, the rolling angle is smaller than 10 degrees, the surface wrinkled fiber fabric has super-hydrophobicity, according to the method, the material waterproof and antifouling property can be improved, and the surface wrinkled fiber type material has the wide application prospect in the fields of functional garments, outdoor supplies, military protection garments, photoelectricity and the like.

Description

technical field [0001] The invention belongs to the technical field of material surface modification, and relates to a surface wrinkled fiber material and a preparation method thereof, in particular to a method for preparing micro-nano scale patterns on the surface of fibers and fabrics. Background technique [0002] The phenomenon of material wrinkling and buckling has been studied for decades. Using this phenomenon can produce micro-nanostructures with clear geometric shapes and sizes, endow materials with excellent optical, electromagnetic, super-hydrophobic, intelligent adhesion and other properties, and It has been widely used in the fields of biology, nanometrics, optics and electronics. [0003] Scientists create wrinkles by changing the surface microstructure of the material to endow the fiber with excellent properties. However, the folds obtained by most methods are in a disordered state. A typical approach is to utilize a "two-layer" system consisting of a hard s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/10C03C25/26C03C25/12C04B41/83
CPCC03C25/12C03C25/26C04B41/009C04B41/488C04B41/83D06M10/10D06M2101/20D06M2101/32D06M2101/34D06M2101/36D06M2101/40D06M2200/01D06M2200/12C04B41/48C04B41/46C04B41/4539C04B41/0054C04B35/62227
Inventor 葛邓腾解晓雨郭颖杨丽丽徐利云石建军
Owner DONGHUA UNIV
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