Super-hydrophobic flame retardant fabric with function of separating oil from water and preparation method thereof

A technology of oil-water separation and flame-retardant fabrics, which is applied in the direction of flame-retardant fibers, immiscible liquid separation, plant fibers, etc., can solve the problems of inability to achieve super-hydrophobicity after modification, failure of fabric surface coating, poor durability, etc., to achieve Not easy to wear, improve flame retardancy, improve thermal stability

Active Publication Date: 2018-02-23
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Materials with a surface contact angle greater than 150° and a rolling angle less than 10° are called superhydrophobic materials. The surface of the material can be modified by using low surface energy compounds such as fluorine and silicon to increase the surface contact angle of the material, but only by using low surface energy Modification of materials with energy compounds cannot achieve the purpose of super-hydrophobicity, so it is necessary to combine the construction of multi-level structure on the surface of materials to prepare super-hydrophobic materials
Most superhydrophobic coatings have poor durability. When the fabric is exposed to the external environment, the surface coating of the fabric is prone to failure due to abrasion.

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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  • Super-hydrophobic flame retardant fabric with function of separating oil from water and preparation method thereof
  • Super-hydrophobic flame retardant fabric with function of separating oil from water and preparation method thereof
  • Super-hydrophobic flame retardant fabric with function of separating oil from water and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Into the reaction vessel were sequentially added 1.42g (10mmol) glycidyl methacrylate, 6g (15mmol) dodecafluoroheptyl methacrylate, 0.0082g (0.05mmol) azobisisobutyronitrile and 25mL tetrahydrofuran, Freeze and thaw three times with liquid nitrogen, fill it with argon, and react at 65℃ for 24h. After the reaction, it is precipitated with methanol and filtered. The filter cake is washed with methanol 3 to 4 times. The solid obtained is placed in a vacuum drying oven at 50℃. Dry for 24 hours to obtain P(GM-co-DM), where x:y=4:6, and its molecular weight is 34089.

[0036] (2) Add 1g (1.28mmol) P(GM-co-DM), 0.159g (0.64mmol) 1,3-bis(3-aminopropyl)-1,1,3,3-tetra After the compound is completely dissolved with methyldisiloxane and 50 mL of tetrahydrofuran, a 5*10 cm pure cotton fabric is immersed in the solution and reacted at 50° C. for 4 hours. The fabric is then taken out and placed in a fume hood, and after the solvent is evaporated and dried, it is put into an oven fo...

Embodiment 2

[0040] (1) Into the reaction vessel were sequentially added 1.42g (10mmol) glycidyl methacrylate, 6g (15mmol) dodecafluoroheptyl methacrylate, 0.0082g (0.05mmol) azobisisobutyronitrile and 25mL tetrahydrofuran, Freeze and thaw three times with liquid nitrogen, fill it with argon, and react at 65℃ for 24h. After the reaction, it is precipitated with methanol and filtered. The filter cake is washed with methanol 3 to 4 times. The solid obtained is placed in a vacuum drying oven at 50℃. Dry for 24 hours to obtain P(GM-co-DM), where x:y=4:6, and its molecular weight is 34089.

[0041] (2) Add 1g (1.28mmol) P(GM-co-DM), 0.56g (0.64mmol) aminopropyl isobutyl silsesquioxane and 50mL tetrahydrofuran into the reaction vessel. After the compound is completely dissolved, add a piece of 5*10cm pure cotton fabric is immersed in the solution and reacted at 50℃ for 4h. The fabric is then taken out and placed in a fume hood, and after the solvent is evaporated and dried, it is put into an oven ...

Embodiment 3

[0043] (1) Into the reaction vessel were sequentially added 1.42g (10mmol) glycidyl methacrylate, 6g (15mmol) dodecafluoroheptyl methacrylate, 0.0082g (0.05mmol) azobisisobutyronitrile and 25mL tetrahydrofuran, Freeze and thaw three times with liquid nitrogen, fill it with argon, and react at 65℃ for 24h. After the reaction, it is precipitated with methanol and filtered. The filter cake is washed with methanol 3 to 4 times. The solid obtained is placed in a vacuum drying oven at 50℃. Dry for 24 hours to obtain P(GM-co-DM), where x:y=4:6, and its molecular weight is 34089.

[0044] (2) Add 1g (1.28mmol) P(GM-co-DM), 0.01g (0.01mmol) octaaminophenyl oligomeric silsesquioxane and 50mL tetrahydrofuran into the reaction vessel. After the compound is completely dissolved, add A piece of 5*10cm pure cotton fabric is immersed in the solution and reacted at 50°C for 4h. Afterwards, the fabric is taken out and placed in a fume hood, and after the solvent is evaporated and dried, it is put...

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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PUM

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Abstract

The invention discloses a super-hydrophobic flame retardant fabric with the function of separating oil from water and a preparation method thereof. The super-hydrophobic flame retardant fabric is prepared by using fluorine-containing polymers with epoxy groups and silicon-containing compounds with amino groups for modifying a fabric body. According to the super-hydrophobic flame retardant fabric,through reaction between the epoxy groups and the amino groups, the fluorine-containing polymers and the silicon-containing compounds are attached to the fabric body in a cross linking mode, so that the treated fabric has durability. Because the modified fabric contains silicon and fluorine, surface energy of materials is reduced, and at the same time, the flame retardant performance of the treated fabric can be improved. The super-hydrophobic flame retardant fabric is further characterized by being hydrophilic and oleophobic, and can be applied to the field of oil and water separation.

Description

Technical field [0001] The invention belongs to the field of super-hydrophobic flame-retardant fabrics, and particularly relates to a super-hydrophobic flame-retardant fabric with oil-water separation function and a preparation method thereof. Background technique [0002] As an indispensable part of people's lives, fabrics are widely used in clothing, home furnishings, automobiles, aerospace and military industries, but most fabrics have the disadvantages of poor stain resistance and flammability, which greatly limits the application of fabrics. Inspired by superhydrophobic leaves such as lotus leaf and tulip tree, more and more people are improving the performance of the fabric by preparing superhydrophobic coating on the surface of the fabric. Combining the two characteristics of low surface energy materials and constructing a multi-level structure to treat the surface of the fabric can not only make the fabric have super hydrophobic characteristics, but also give the fabric t...

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): D06M15/33D06M13/507C08F220/24C08F220/32B01D17/02D06M101/06D06M101/34
CPCB01D17/02C08F220/24D06M13/507D06M15/33D06M2101/06D06M2101/34D06M2200/12D06M2200/30C08F220/325
Inventor 戴李宗陈婷王世成吴雯倩陈国荣袁丛辉许一婷曾碧榕
Owner XIAMEN UNIV
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