Modified fabric as well as preparation method and application thereof

A fabric modification technology, applied in the field of modified fabrics and its preparation, can solve the problem that PET fabrics cannot have excellent water resistance and flame retardancy at the same time, and achieve enhanced superhydrophobicity, simple preparation process, and low energy consumption Effect

Pending Publication Date: 2022-07-08
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem that PET fabrics in the prior art cannot simultaneously have excellent water resistance and flame retardancy, the present invention provides a modified fabric and its preparation method and application

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 fabric as well as preparation method and application thereof
  • Modified fabric as well as preparation method and application thereof
  • Modified fabric as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] The 5cm*5cm PET fabric was mixed with 1M NaOH aqueous solution, treated at 90°C for 30min, and dried at 60°C for use.

[0105] Alkali-treated PET fabric was mixed with ethanol (100ml), ammonium polyphosphate (APP) (4g), tetraethoxysilane (TEOS) (4g), hydroxyl terminated polydimethylsiloxane (HPDMS) ( 4g) and a suspension of dopamine hydrochloride (DA) (0.1g), stir for 30min, add ammonia water to adjust the pH to 9, react at 30°C for 8h, take out the fabric and wash with deionized water, at 60°C Under drying, the fabric-(APP-PDMS-SiO 2 -PDA).

[0106] The fabric-(APP-PDMS-SiO 2 -PDA) with 10g / L AgNO 3 The aqueous solutions were mixed and treated at a mass ratio of 1:20 at 30 °C for 7 h. After taking out the fabric, it was washed with deionized water and dried at 60 °C to obtain a fabric-(APP-PDMS-SiO 2 -PDA-Ag), namely modified PET fabric, the SEM image of this modified PET fabric is as figure 2 shown.

Embodiment 2

[0108] The 5cm*5cm PET fabric was mixed with 1M NaOH aqueous solution, treated at 90°C for 30min, and dried at 60°C for use.

[0109] Alkali-treated PET fabric was mixed with ethanol (110 ml), ammonium polyphosphate (APP) (4.5 g), tetraethoxysilane (TEOS) (4.5 g), hydroxyl terminated polydimethylsiloxane (HPDMS) (4.5g) and a suspension of dopamine hydrochloride (DA) (0.1g) were mixed, and after stirring for 30min, ammonia water was added to adjust the pH to 9, and the reaction was carried out at 30°C for 8h. Dry at 60°C to obtain fabric-(APP-PDMS-SiO 2 -PDA).

[0110] The fabric-(APP-PDMS-SiO 2 -PDA) with 10g / L AgNO 3 The aqueous solutions were mixed and treated at a mass ratio of 1:20 at 30 °C for 7 h. After taking out the fabric, it was washed with deionized water and dried at 60 °C to obtain a fabric-(APP-PDMS-SiO 2 -PDA-Ag), ie modified PET fabric.

Embodiment 3

[0112] The 5cm*5cm PET fabric was mixed with 1M NaOH aqueous solution, treated at 90°C for 30min, and dried at 60°C for use.

[0113] Alkali-treated PET fabric was mixed with ethanol (150ml), ammonium polyphosphate (APP) (5g), tetraethoxysilane (TEOS) (5g), hydroxyl terminated polydimethylsiloxane (HPDMS) (5g) ) and the suspension of dopamine hydrochloride (DA) (0.15g), stir for 30min, add ammonia water to adjust the pH to 9, react at 30°C for 8h, take out the fabric and wash with deionized water, at 60°C Drying to obtain fabric-(APP-PDMS-SiO 2 -PDA).

[0114] The fabric-(APP-PDMS-SiO2 -PDA) with 10g / L AgNO 3 The aqueous solutions were mixed and treated at a mass ratio of 1:20 at 30 °C for 7 h. After taking out the fabric, it was washed with deionized water and dried at 60 °C to obtain a fabric-(APP-PDMS-SiO 2 -PDA-Ag), ie modified PET fabric.

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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Abstract

The invention discloses a modified fabric as well as a preparation method and application thereof. The method comprises the following steps: (1) ammonium polyphosphate coating, (2) PDMS (Polydimethylsiloxane)-SiO2 coating and (3) polydopamine coating are performed on the fabric; wherein the steps (1)-(3) are respectively carried out, or at least two steps are simultaneously carried out; the step (1) is not performed after the step (2). The modified fabric is obtained by adopting the preparation method. According to the invention, the synergistic effect of ammonium polyphosphate and SiO2 enhances the hydrophobicity and flame retardance of the PET fabric; the preparation method is simple and low in energy consumption; furthermore, the nano-silver particles are attached to the fabric through the reduction activity of the polydopamine; the fabric is endowed with flame retardance, antibacterial property, hydrophobicity and washing fastness. The modified fabric can be applied to the fields of outdoor articles, indoor decoration and fire-fighting articles.

Description

technical field [0001] The invention relates to the field of fabric modification, in particular to a modified fabric and a preparation method and application thereof. Background technique [0002] PET fabrics are widely used in clothing, decoration and other fields due to their excellent properties such as good wrinkle resistance and elasticity. In recent years, with the continuous improvement of living environment and level, people also tend to pursue environmentally friendly and healthy textile materials. However, PET fabric is flammable, which brings huge losses to people in fires; in addition, PET fabric is conducive to the adhesion of microorganisms and bacteria to the surface, which in turn spreads and harms human health; therefore, the antibacterial and flame retardant properties of PET fabric Tidying up has attracted attention. [0003] At present, the existing technology only realizes the hydrophobic function, flame retardant function or antibacterial function of ...

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 Applications(China)
IPC IPC(8): D06M11/72D06M15/643D06M11/79D06M15/61D06M11/83D06M101/32
CPCD06M11/72D06M15/643D06M11/79D06M15/61D06M11/83D06M16/00D06M2101/32D06M2200/30D06M2200/12
Inventor 李秋影张善钰
Owner EAST CHINA UNIV OF SCI & TECH
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