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Preparation method of amorphous silicon dioxide ceramic coated polyester fiber oil absorption material

A polyester fiber and oil-absorbing material technology, applied in chemical instruments and methods, separation methods, other chemical processes, etc., can solve the problems of low oil absorption rate and oil retention rate, poor oil-water selectivity, etc., and achieve good oil absorption and oil retention performance , stable chemical properties, excellent adsorption effect

Active Publication Date: 2021-06-15
陕西鸿鑫耐斯环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a kind of preparation method of amorphous SiO2 ceramic coated polyester fiber oil-absorbing material, which solves the existing Poor oil-water selectivity, low oil absorption rate and low oil retention rate of oil pollution treatment materials

Method used

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  • Preparation method of amorphous silicon dioxide ceramic coated polyester fiber oil absorption material
  • Preparation method of amorphous silicon dioxide ceramic coated polyester fiber oil absorption material
  • Preparation method of amorphous silicon dioxide ceramic coated polyester fiber oil absorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Step 1, impregnation of polyester fibers into SiO 2 10s in the sol, take it out, and dry it at 25°C for 2h to get SiO 2 Polyester fiber for gel coat;

[0040] Among them, SiO 2 The preparation process of the sol is as follows: at room temperature, add ethyl orthosilicate to the mixture of absolute ethanol and deionized water, then add acetic acid drop by drop, and stir magnetically for 8 hours to obtain SiO 2 Sol;

[0041] Among them, SiO 2 The concentration of the sol is 0.2mol / L, absolute ethanol is the solvent, and the molar ratio of ethyl orthosilicate, deionized water, and acetic acid is 1:6:0.08;

[0042] Step 2, with SiO obtained in step 1 2 Gel-coated polyester fibers converted to amorphous SiO by UV-assisted low-temperature heat treatment 2 Polyester fiber coated with ceramic layer;

[0043] Among them, the wavelength of ultraviolet light is 180nm, the irradiation time is 0.5h, and the auxiliary heating temperature is 100°C;

[0044] Step 3, the amorpho...

Embodiment 2

[0057] Step 1, impregnation of polyester fibers into SiO 2 10s in the sol, take it out, and dry it for 1.5h at a temperature of 40°C in the room to obtain a SiO 2 Polyester fiber for gel coat;

[0058] Among them, SiO 2 The preparation process of the sol is as follows: at room temperature, add tetraethyl orthosilicate to the mixture of absolute ethanol and deionized water, then add acetic acid drop by drop, and magnetically stir for 10 hours to obtain SiO 2 Sol;

[0059] Among them, SiO 2 The concentration of the sol is 0.5mol / L, absolute ethanol is the solvent, and the molar ratio of ethyl orthosilicate, deionized water, and acetic acid is 1:6:0.08;

[0060] Step 2, with SiO obtained in step 1 2 Gel-coated polyester fibers converted to amorphous SiO by UV-assisted low-temperature heat treatment 2 Polyester fiber coated with ceramic layer;

[0061] Among them, the wavelength of ultraviolet light is 200nm, the irradiation time is 1.5h, and the auxiliary heating temperatu...

Embodiment 3

[0071] Step 1, impregnation of polyester fibers into SiO 2 sol for 10s, take it out, and dry it at 60°C for 1h to obtain SiO 2 Polyester fiber for gel coat;

[0072] Among them, SiO 2 The preparation process of the sol is as follows: at room temperature, add ethyl orthosilicate to the mixture of absolute ethanol and deionized water, then add acetic acid drop by drop, and stir magnetically for 12 hours to obtain SiO 2 Sol;

[0073] Among them, SiO 2 The concentration of the sol is 0.8mol / L, absolute ethanol is the solvent, and the molar ratio of ethyl orthosilicate, deionized water, and acetic acid is 1:6:0.08;

[0074] Step 2, with SiO obtained in step 1 2 Gel-coated polyester fibers converted to amorphous SiO by UV-assisted low-temperature heat treatment 2 Polyester fiber coated with ceramic layer;

[0075] Among them, the wavelength of ultraviolet light is 237nm, the irradiation time is 2h, and the auxiliary heating temperature is 150°C;

[0076] Step 3, the amorphou...

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Abstract

The invention discloses a preparation method of an amorphous SiO2 ceramic coated polyester fiber oil absorption material, which is specifically implemented according to the following steps: 1, dipping polyester fibers into SiO2 sol, taking out the polyester fibers and drying the polyester fibers to obtain polyester fibers with a SiO2 gel coating layer; 2, converting the polyester fibers with the SiO2 gel coating layer obtained in the step 1 into amorphous SiO2 ceramic layer coated polyester fibers through ultraviolet radiation assisted low-temperature heat treatment; and 3, carrying out low surface energy chemical modification on the amorphous SiO2 ceramic layer coated polyester fibers obtained in the step 2 to obtain the amorphous SiO2 ceramic coated polyester fiber oil absorption material. The amorphous SiO2 ceramic coated polyester fiber oil absorption material prepared by the invention solves the problems of poor oil-water selectivity, low oil absorption rate and low oil retention rate of the existing oil stain treatment material.

Description

technical field [0001] The invention belongs to the technical field of oil adsorption materials, in particular to an amorphous SiO 2 The invention discloses a preparation method of a ceramic-coated polyester fiber oil-absorbing material. Background technique [0002] In recent years, with the rapid development of industrial technology and economic technology, the frequent occurrence and uncertainty of oil spills and ship oil spill accidents, as well as the substandard discharge of oily wastewater have seriously affected aquatic animals and plants, human health and the ecological environment. Threats have become one of the most important environmental issues in the world that need to be solved urgently. [0003] Traditional oil pollution treatment methods include incineration, scooping, or the use of degreasing agents, etc., but these methods have low efficiency for large-area oil pollution and emergency oil spills, and some may even cause secondary pollution due to the use ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01D17/022
CPCB01J20/103B01J20/262B01J20/22B01D17/0202Y02A20/204
Inventor 段宗范卢艳芬李张圆赵高扬
Owner 陕西鸿鑫耐斯环保科技有限公司
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