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Preparation method of durable hydrophobic fabric

A fabric and hydrophobic technology, applied in the directions of plant fibers, animal fibers, textiles and papermaking, can solve the problems of easy detachment of the silicone film layer, poor washing resistance, and complicated preparation methods for super-hydrophobic fabrics, and achieves remarkable hydrophobic effect and strong hydrophobicity. effect, the effect of stable hydrophobicity

Active Publication Date: 2017-12-12
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation method of the superhydrophobic fabric prepared by the sol-gel method is complicated, and the obtained silica gel film layer is easy to fall off, and the washing resistance is poor.

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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  • Preparation method of durable hydrophobic fabric
  • Preparation method of durable hydrophobic fabric
  • Preparation method of durable hydrophobic fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Dissolve 1.8g styrene, 5g hexafluorobutyl methacrylate, 0.2g hydroxyethyl methacrylate, 0.1g N, N-methylenebisacrylamide in 100mL deionized water and place in a 250mL three-necked flask In the process, blow nitrogen for 30 minutes and stir to raise the temperature to 70°C, add 2mL aqueous solution containing 70mg of ammonium persulfate initiator APS dropwise, continue the reaction for 12h, and filter and purify the reaction product three times, and dry it in a vacuum oven at 40°C to obtain hydrophobic crosslinking Polystyrene microspheres.

[0040] (2) Dissolve 0.3g of hydrophobic cross-linked polystyrene microspheres in 100mL of acetone, ultrasonically disperse for 30min, add 2mL of isophorone diisocyanate dropwise, add 0.1mL of dibutyltin dilaurate dropwise, and The reaction was stirred at 50°C for 8 hours, the product was filtered and rinsed with a large amount of acetone, and dried in a vacuum oven at room temperature.

[0041] (3) Dissolve 0.2 g of surface-mod...

Embodiment 2

[0049] (1) Dissolve 1.8g styrene, 8g trifluoroethyl methacrylate, 0.2g hydroxyethyl methacrylate, 0.1g N, N-methylenebisacrylamide in 100mL deionized water and place in a 250mL three-necked flask , blow nitrogen for 30 minutes and stir to raise the temperature to 70°C, add 2mL aqueous solution containing 70mg ammonium persulfate initiator dropwise, continue to react for 12h, the reaction product is filtered and purified three times, and dried in a vacuum oven at 40°C to obtain hydrophobic cross-linked polystyrene Microspheres.

[0050] (2) Dissolve 0.3g of hydrophobic cross-linked polystyrene microspheres in 100mL of acetone, ultrasonically disperse for 30min, add 2mL of isophorone diisocyanate dropwise, add 0.1mL of dibutyltin dilaurate dropwise, and The reaction was stirred at 50°C for 8 hours, the product was filtered and rinsed with a large amount of acetone, and dried in a vacuum oven at room temperature.

[0051] (3) Dissolve 0.2 g of surface-modified polystyrene cross-...

Embodiment 3

[0054] (1) Dissolve 1.8g styrene, 5g hexafluorobutyl methacrylate, 0.2g hydroxyethyl methacrylate, 0.1g N, N-methylenebisacrylamide in 100mL deionized water and place in a 250mL three-necked flask , blow nitrogen for 30 minutes and stir to raise the temperature to 70°C, add 2mL aqueous solution containing 70mg ammonium persulfate initiator dropwise, continue to react for 12h, the reaction product is filtered and purified three times, and dried in a vacuum oven at 40°C to obtain hydrophobic cross-linked polystyrene Microspheres.

[0055] (2) Dissolve 0.3g of hydrophobic cross-linked polystyrene microspheres in 100ml of petroleum ether, disperse by ultrasonic wave for 30min, add 2mL of diphenylmethane diisocyanate dropwise, add 0.1mL of dibutyltin dilaurate dropwise, and The reaction was stirred at 50°C for 8 hours, the product was filtered and rinsed with a large amount of acetone, and dried in a vacuum oven at room temperature.

[0056] (3) Dissolve 0.2 g of surface-modified ...

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Abstract

The invention provides a preparation method of a durable hydrophobic fabric. The preparation method of the durable hydrophobic fabric comprises the steps of, firstly, preparing hydrophobic cross-linked polystyrene microspheres; secondly, performing surface modification on the prepared hydrophobic cross-linked polystyrene microspheres to form reaction-active -NCO functional groups on the surface of the hydrophobic cross-linked polystyrene microspheres; thirdly, grafting the modified hydrophobic cross-linked polystyrene microspheres onto the surface of a fabric to obtain the durable hydrophobic fabric. The prepared hydrophobic cross-linked polystyrene microspheres are stable in performance, simple in technical processes, low in raw material cost and easy to produce; by structuring a hydrophobic structure on the surface of the fabric through the surface-modified hydrophobic cross-linked polystyrene microspheres, significant hydrophobic effects can be achieved and maintained for a relatively long term; the processing temperature is mild and can effectively reduce influence on the original performance of the fabric; through a chemical bonding mode, the surface-modified hydrophobic cross-linked polystyrene microspheres are grafted to the surface of the fabric, so that the fabric can keep good hydrophobic effects after being washed for a number of times.

Description

technical field [0001] The invention relates to the technical field of functional modification of textiles, in particular to a method for preparing durable hydrophobic fabrics. Background technique [0002] Wettability is one of the important characteristics of solid surfaces. The chemical composition and microstructure of the surface determine that hydrophobic fabrics have excellent properties such as waterproof and antifouling. It is one of the hotspots in the research of functional textiles. Scientists have found in the research on the surfaces of animals and plants that it is more common in nature to achieve self-cleaning functions by forming super-hydrophobic surfaces. The most typical examples are the surfaces of lotus leaves, the wings of Lepidoptera insects such as butterflies, and the feathers of water birds. Jiang Lei et al. found through research on lotus leaves, rice leaves, cicada wings and water strider legs that the hierarchical structure combining microstruct...

Claims

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Application Information

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IPC IPC(8): D06M15/233C08F220/22C08F212/08C08F220/28C08F222/38D06M101/06D06M101/10
CPCC08F220/22D06M15/233D06M2101/06D06M2101/10D06M2200/12C08F212/08C08F220/281C08F222/385
Inventor 吴德群韩华覃小红俞建勇秦怀宇
Owner DONGHUA UNIV
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