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Method for preparing super-hydrophobic flame retardant fabric through one pot method

A textile and super-hydrophobic technology, applied in textiles and papermaking, physical treatment, fiber treatment, etc., can solve the problems of non-waterproof, cumbersome, and time-consuming reactions of flame-retardant textiles, and achieve improved hydrophobicity and flame-retardant properties Effect

Active Publication Date: 2019-01-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems existing in the prior art, such as non-waterproof, non-pollution-resistant and super-hydrophobic flame-retardant coatings, and long reaction time, and provides a one-pot method with simple process and low cost. A method for superhydrophobic flame-retardant textiles, the resulting superhydrophobic flame-retardant textiles exhibit excellent superhydrophobic properties and flame-retardant properties

Method used

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  • Method for preparing super-hydrophobic flame retardant fabric through one pot method
  • Method for preparing super-hydrophobic flame retardant fabric through one pot method
  • Method for preparing super-hydrophobic flame retardant fabric through one pot method

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The cotton fabric was first treated with 200W oxygen plasma for 1 min. Measure 100mL of absolute ethanol in a 250mL beaker with magnetic stirring, add 4.00g of ammonium polyphosphate, 2.00g of hydroxyl-terminated polydimethylsiloxane with a molecular weight of 560, 4.00g of ethyl orthosilicate and The cotton fabric treated with oxygen plasma (the cotton fabric is completely immersed in the solution) was magnetically stirred at 30° C. for 30 minutes, so that ammonium polyphosphate was deposited on the surface of the cotton fabric through hydrogen bond interaction. Then, 1M ammonia water was added dropwise into the beaker, the pH value of the mixed solution was adjusted to 9, and the stirring reaction was continued for 1 hour, so that the surface of the cotton fabric was coated with a composite coating with a micro-nano structure. Then the cotton fabric was taken out from the beaker, rinsed twice with ethanol and dried at 60°C to obtain a superhydrophobic flame-retardant ...

Embodiment 2

[0043] Corona treatment was first performed on the polyester fabric with a corona discharge apparatus at a voltage of 10kV for 45s. Measure 100mL of acetone into a 250mL beaker with magnetic stirring, add 8.00g of ammonium polyphosphate, 1.00g of hydroxyl-terminated polydimethylsiloxane with a molecular weight of 400, 2.00g of tetraethyl orthosilicate and corona The treated polyester fabric was magnetically stirred at 25° C. for 20 minutes, so that ammonium polyphosphate was deposited on the surface of the polyester fabric through hydrogen bond interaction. Then, 1M ammonia water was added dropwise to the above-mentioned beaker to adjust the pH value of the mixed solution to 8, and the stirring reaction was continued for 2 hours, so that the surface of the polyester fabric was coated with a composite coating with a micro-nano structure. Then the polyester fabric was taken out from the beaker, rinsed twice with ethanol and dried at 50°C to obtain a superhydrophobic flame-retard...

Embodiment 3

[0047] The ramie fabric was first treated with 200 watts of oxygen plasma for 2 minutes. Measure 100mL of absolute ethanol into a 250mL three-neck flask with a magnetic stirring and reflux device, add 2.00g of ammonium polyphosphate, 2.40g of hydroxyl-terminated polydimethylsiloxane with a molecular weight of 800, ethyl orthosilicate The ramie fabric treated with 1.20 g of ester and oxygen plasma was magnetically stirred at 50° C. for 60 min, so that ammonium polyphosphate was deposited on the surface of the ramie fabric through hydrogen bond interaction. Then, 1M ammonia water was added dropwise to the above-mentioned flask, the pH value of the mixed solution was adjusted to 8.5, and the stirring reaction was continued for 0.5h, so that the surface of the ramie fabric was covered with a composite coating with a micro-nano structure. Then the ramie fabric was taken out from the flask, rinsed twice with ethanol and dried at 90°C to obtain a superhydrophobic flame-retardant rami...

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Abstract

The invention discloses a method for preparing super-hydrophobic flame retardant fabric through a one pot method. The method comprises the steps that oxygen plasma corona is adopted for treating the fabric; at 25-50 DEG C, organic solvent, tetraethoxysilane, hydroxyl-terminated polydimethylsiloxane and ammonium polyphosphate are mixed, mixed liquid is obtained, the fabric is added, stirring is conducted, and ammonium polyphosphate is deposited on the surface of the fabric through hydrogen-bond interaction; the pH value of the mixed liquid is adjusted to be 8-9; stirring continues to be conducted, tetraethoxysilane and hydroxyl-terminated polydimethylsiloxane are subjected to a dehydration condensation reaction, a generated polysiloxane-silicon dioxide hybrid and ammonium polyphosphate forma composite coating with a micro-nano structure, and the surface of the fabric is wrapped by the composite coating; rinsing and drying are conducted, and the obtained fabric has excellent super-hydrophobic property and flame retardant property. Accordingly, the simple one pot method is adopted, the technology is simple, the condition is mild, the source of raw materials are wide, the price is low, and large-scale industrial production is facilitated.

Description

technical field [0001] The invention relates to the field of superhydrophobic and flame-retardant materials, in particular to a method for preparing superhydrophobic flame-retardant textiles in one pot. Background technique [0002] A large number of textiles used in daily life are flammable, and many fires in the world are caused by the spread of textiles, which have caused huge damage to the safety of human life and property. Therefore, it is necessary to carry out flame retardant treatment on these textiles. [0003] At present, the more convenient and effective textile flame retardant treatment method is the surface modification method. Common surface modification methods include impregnation method, chemical grafting method, layer-by-layer assembly method and sol-gel method. Zhang et al. used aminated carbon nanotubes and ammonium polyphosphate as raw materials to construct a flame-retardant coating with excellent performance on the surface of ramie through layer-by-l...

Claims

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Application Information

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IPC IPC(8): D06M10/10D06M10/06
CPCD06M10/06D06M10/10
Inventor 曾幸荣林冬梅李红强赖学军
Owner SOUTH CHINA UNIV OF TECH
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