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Modified wool fabric and its preparation method

A wool and fabric technology, applied in the field of modified wool fabric and its preparation, can solve the problems of cumbersome and complicated preparation methods, environmental pollution of flame retardants, etc. Effect

Active Publication Date: 2021-04-09
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there are relatively few reports on the flame-retardant and antibacterial composite functional finishing of wool fabrics, and some of the preparation methods involved are cumbersome and complicated, and the flame retardants used have certain pollution to the environment.

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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  • Modified wool fabric and its preparation method
  • Modified wool fabric and its preparation method
  • Modified wool fabric and its preparation method

Examples

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preparation example Construction

[0067] According to a second aspect of the present invention, there is also provided a method for preparing the above-mentioned modified wool fabric, comprising the following steps:

[0068] (a) After coating the graphene oxide solution on two surfaces of the wool fabric, dry to obtain the wool fabric with a graphene oxide layer formed on the surface;

[0069] (b) coating the polyethyleneimine solution on the surface of the wool fabric with the graphene oxide layer, drying, to obtain the wool fabric with the graphene oxide layer and the polyethyleneimine layer formed on the surface;

[0070] (c) repeating step (a) and step (b) several times, so that both surfaces of the woolen fabric form a composite layer in which graphene oxide layers and polyethyleneimine layers are alternately arranged;

[0071] (d) Coating the polyphosphate amine solution on the surface of the wool fabric with the composite layer, drying to obtain the modified wool fabric; or, irradiating the surface of t...

Embodiment 1

[0113] This embodiment provides a modified wool fabric, in which a composite layer and two layers of polyphosphate amine layers are sequentially arranged on both surfaces of the wool fabric from inside to outside;

[0114] Wherein, the composite layer includes a graphene oxide layer and a branched polyethyleneimine layer, the graphene oxide layer and the branched polyethyleneimine layer are alternately arranged, and the bottom layer of the composite layer near the wool fabric surface is a graphene oxide layer, away from The top layer of the composite layer on the wool fabric surface is a branched polyethyleneimine layer.

[0115] The preparation method of the modified wool fabric provided by the present embodiment comprises the following steps:

[0116] (a) After the wool fabric is cleaned with deionized water, spray a graphene oxide solution of 5 mg / mL and a pH value of 7 to the two surfaces of the wool fabric, wherein the spraying pressure is 2bars, and the graphene oxide so...

Embodiment 2

[0121] This embodiment provides a modified wool fabric, except that the graphene oxide layer in the carbon material layer is replaced by a graphene layer, the rest of the structure and composition are the same as in embodiment 1.

[0122] The preparation method of the modified wool fabric provided in this example, except that step (d) is different from Example 1, steps (a), (b) and (c) are all the same as Example 1;

[0123] Step (d) comprises the following steps: irradiating the surface of the wool fabric with the composite layer with ultraviolet light so that the graphene oxide layer is completely converted into a graphene layer, the time of ultraviolet light irradiation is 13h, and the voltage of the light source of ultraviolet light irradiation is 220V, the frequency of the light source is 50Hz, the power of the light source is 18W, and the light distance is 30cm, and then spray 20mg / mL polyphosphate amine solution to form the polyphosphate amine layer, wherein the spraying...

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Abstract

The invention provides a modified wool fabric and a preparation method thereof, and relates to the technical field of textile chemistry. The modified wool fabric realizes the modification of the wool fabric by assembling the carbon material layer, the polyethyleneimine layer and the polyphosphoric amine layer arranged in a specific way on the surface of the wool fabric, and obtains the modified wool fabric; wherein, the wool The surface of the fabric and the carbon material layer are combined through the electrostatic force interaction between positive and negative charges. The hydroxyl and carboxyl groups on the surface of the carbon material in the carbon material layer are connected to the polyethyleneimine in the polyethyleneimine layer through hydrogen bonds and electrostatic force. Interaction, the positive charge on the surface of polyethyleneimine in the polyethyleneimine layer and the negative charge on the surface of polyphosphate amine in the polyphosphate amine layer interact through electrostatic force, through the carbon material layer and polyethyleneimine layer and poly The synergistic effect between the amine phosphate layers makes the modified wool fabric have good flame retardancy and antibacterial effect. The present invention also provides a preparation method of the above-mentioned modified wool fabric.

Description

technical field [0001] The invention relates to the technical field of textile chemistry, in particular to a modified wool fabric and a preparation method thereof. Background technique [0002] With the development of the scientific level and the improvement of the quality of life, people's requirements for the performance of wool fiber and its products are constantly improving. Because wool has a higher moisture regain than ordinary fibers and contains phosphorus and nitrogen, wool is inherently flame retardant. However, under appropriate conditions (such as a strong heat source or a fabric with fluff on the surface and a large void ratio close to the flame) wool will also burn and emit toxic gases, especially in some special areas such as high-speed rail seats, blackout cloth , household curtains or military uniforms, etc., require the flame retardancy of the fabric to reach a higher level. Therefore, it is necessary to improve the flame retardancy of wool fabrics. [00...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/74D06M15/61D06M11/71D06M101/12
CPCD06M11/71D06M11/74D06M15/61D06M16/00D06M2101/12D06M2200/30
Inventor 郭永梅
Owner MINJIANG UNIV
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