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Preparation method and application of basalt fiber surface modified coating

A basalt fiber, surface modification technology, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., to achieve the effects of reducing hydrophilicity, improving dispersibility, and simple operation

Active Publication Date: 2018-01-30
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In the research on the surface modification technology of basalt fiber mentioned above, all of them focus on the mechanical properties of basalt fiber before and after modification. At present, there is no report on the improvement of the hydrophilicity of basalt fiber surface.

Method used

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  • Preparation method and application of basalt fiber surface modified coating
  • Preparation method and application of basalt fiber surface modified coating
  • Preparation method and application of basalt fiber surface modified coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Add 1.18g TEOS, 40g deionized water and 63.12g absolute ethanol into a 250ml three-necked flask, stir and mix evenly, adjust the pH to about 3 with hydrochloric acid, and stir for 3 hours at a temperature of 30°C to obtain nano-dioxide Silica dispersion.

[0044] (2) In a 250mL four-necked flask equipped with a stirrer and a reflux condenser, add 1g nano-silica dispersion, 0.077g silane coupling agent KH-550, 0.1g polyacrylamide (PAM), 0.051g Hexadecyltrimethylammonium chloride (HTMAC), 0.62g of epoxy resin and 5g of deionized water were fully stirred evenly, and the reflux reaction temperature was 40°C.

[0045] (3) Raise the reaction temperature to 65°C, add 1.24g epoxy resin and 0.06g APS initiator solution (dissolved in 10g deionized water) dropwise at the same time, add NaOH buffer solution, adjust the pH value to about 12, and continue stirring for 3h , after the reaction is complete, cool down to room temperature, adjust the pH value to 7-8, and obtain polya...

Embodiment 2

[0049] (1) Add 1.18g TEOS, 40g deionized water and 63.12g absolute ethanol into a 250ml three-necked flask, stir and mix evenly, adjust the pH to about 3 with hydrochloric acid, and stir for 3 hours at a temperature of 30°C to obtain nano-dioxide Silica dispersion.

[0050] (2) In a 250mL four-neck flask equipped with a stirrer and a reflux condenser, add 2g of nano-silica dispersion, 0.2g of silane coupling agent (KH-560), 0.3g of polyacrylamide (PAM), 0.1g of hexadecyltrimethylammonium chloride (HTMAC), 4.53g of epoxy resin and 10g of deionized water were fully stirred evenly, and the reflux reaction temperature was 45°C.

[0051] (3) Raise the reaction temperature to 70°C, add dropwise 9.06g epoxy resin and 0.085g KPS initiator solution (dissolved in 10g deionized water), add KOH buffer solution to adjust the pH value to about 13, and continue stirring for 4h. After the reaction is complete, cool down to room temperature and adjust the pH value to 7-8 to obtain polyacrylam...

Embodiment 3

[0055] (1) Add 1.18g TEOS, 40g deionized water and 63.12g absolute ethanol into a 250ml three-necked flask, stir and mix evenly, adjust the pH to about 3 with hydrochloric acid, and stir for 3 hours at a temperature of 30°C to obtain nano-dioxide Silica dispersion.

[0056] (2) In a 250mL four-neck flask equipped with a stirrer and a reflux condenser, add 3g of nano-silica dispersion, 0.24g of silane coupling agent (KH-550), 0.3g of polyacrylamide (PAM), 0.128g of hexadecyltrimethylammonium chloride (HTMAC), 5.42g of epoxy resin and 10g of deionized water were fully stirred evenly, and the reflux reaction temperature was 45°C.

[0057] (3) Raise the reaction temperature to 75°C, add 10.85g epoxy resin and 0.077g initiator solution (dissolved in 10g deionized water) dropwise at the same time, add KOH buffer solution to adjust the pH value to about 13, continue stirring for 4h, wait After the reaction is complete, cool down to room temperature and adjust the pH value to 7-8 to ...

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Abstract

The invention belongs to the technical field of inorganic fiber modification, and relates to basalt fiber surface modification, in particular to a preparation method of a basalt fiber surface modifiedcoating. The method includes the steps: firstly, adding silane coupling agents, surface active agent solution, polyacrylamide solution and 1 / 3 water-borne epoxy resins into an appropriate amount of nano-silicon dioxide dispersion liquid, and performing reflux reaction; secondly, dropping residual water-borne epoxy resins and initiating agent solution when heating, and performing continuous reaction of an alkaline system to obtain the basalt fiber surface modified coating. The invention further discloses an application of the prepared basalt fiber surface modified coating. Basalt fiber surfacegroups are activated by strong H2SO4 / H2O2 mixed solution, etched by hydrochloric acid, soaked into the coating to graft and dried to constant weight. Prepared coating emulsion does not contain any organic solvents and is green, environmentally friendly, convenient and simple in operation technique, high in applicability and stable in performance and can be applied to the field of microbial film carrier materials, basalt fibers can be rapidly and effectively modified, and the surface roughness of the basalt fibers is obviously increased.

Description

technical field [0001] The invention belongs to the technical field of inorganic fiber modification, and relates to a method for surface modification of basalt fiber, in particular to a preparation method and application of a basalt fiber surface modification coating. Background technique [0002] At present, the shortage of water resources and water pollution coexist in my country, and the pollution of surface water is still serious. It is urgent to protect water resources, improve the water environment, and improve the efficiency of sewage / wastewater treatment. The conventional process of sewage / wastewater treatment covers physical, chemical and biological methods, and most of the sewage / wastewater treatment in my country is mainly based on biological methods. Among the processes of biological treatment of sewage / wastewater, the biofilm process is the most widely used technology. Biofilm wastewater treatment technology is a technology that fixes microorganisms on a carrie...

Claims

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Application Information

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IPC IPC(8): C03C25/42C02F3/10C02F3/28
CPCY02W10/10
Inventor 吴智仁张晓颖周向同荣新山倪慧成张倩
Owner JIANGSU UNIV
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