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Preparation method of ramee/expanded graphite composite fiber adsorbing material

A composite fiber and ramie fiber technology, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal compounds, etc., to achieve the effect of low working environment requirements, good water purification effect, and high adsorption performance

Active Publication Date: 2014-01-15
南京意西欧环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology of the method for preparing filter materials and the products of ramie fiber adsorption materials by using ramie fiber as the composite fiber of the base material has not yet been reported.

Method used

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  • Preparation method of ramee/expanded graphite composite fiber adsorbing material
  • Preparation method of ramee/expanded graphite composite fiber adsorbing material

Examples

Experimental program
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Effect test

Embodiment 1

[0039]Ramie degumming process: raw hemp → soaking → degumming → knocking hemp → washing → knocking hemp → washing → drying → softness → drying → combing hemp to obtain ramie fibers for use. Weigh 0.01g of expanded graphite into a 250mL beaker, add 100mL of deionized water, and ultrasonically oscillate for 15 minutes to form a homogeneous mixture of expanded graphite A, put the homogeneous mixture of expanded graphite into a refrigerator to cool at 0°C Finally, add 6.0gNaOH, 4.0g urea (urea), 4.0g ramie fiber in ice-water bath, stir for 15 minutes, put the mixed solution (containing 6wt%NaOH, 4wt%Urea, 4wt%MCC and 0.01g expanded graphite) into Store in a refrigerator at -15°C for 2 hours. Then the mixed solution in the frozen state was thawed at room temperature, and stirred for 30 minutes to form a homogeneous mixed solution of ramie fiber and expanded graphite, and the prepared ramie fiber and expanded graphite homogeneous mixed solution was sprayed into a 5 wt. %H 2 S0 4 ...

Embodiment 2

[0041] Ramie degumming process: raw hemp → soaking → degumming → knocking hemp → washing → knocking hemp → washing → drying → softness → drying → combing hemp to obtain ramie fibers for use. Weigh 0.09g of expanded graphite and put it into a 250mL beaker, add 100mL of deionized water, and ultrasonically oscillate for 30 minutes to form a homogeneous mixture of expanded graphite. Put the homogeneous mixture of expanded graphite into a refrigerator and cool it at 0°C , add 12.0g NaOH, 8.0g urea (urea), 8.0g ramie fiber in the ice-water bath, stir for 30 minutes, put the mixed solution in a refrigerator at -15°C, cool and store for 2 hours. The mixed solution of frozen state is placed on room temperature and thawed, and stirred for 40 minutes, and the obtained ramie fiber and expanded graphite form a homogeneous mixed solution, and the prepared ramie fiber and expanded graphite homogeneous mixed solution is sprayed into a 5 wt. %H 2 S0 4 Excess NaOH is removed from the solution...

Embodiment 3

[0043] Ramie degumming process: raw hemp → soaking → degumming → knocking hemp → washing → knocking hemp → washing → drying → softness → drying → combing hemp to obtain ramie fibers for use. Weigh 0.15g of expanded graphite and put it into a 250mL beaker, add 100mL of deionized water, and ultrasonically oscillate for 20 minutes to form a homogeneous mixture of expanded graphite. Put the homogeneous mixture of expanded graphite into a refrigerator to cool at 0°C , add 18.0g NaOH, 12.0g urea (urea), 12.0g ramie fiber in ice-water bath, stir for 40 minutes, put the mixed solution in a refrigerator at -15°C, cool and store for 2 hours. The mixed solution of frozen state is placed on room temperature and thawed, and stirred for 50 minutes, and the obtained ramie fiber and expanded graphite form a homogeneous mixed solution, and the prepared ramie fiber and expanded graphite homogeneous mixed solution is sprayed into a 5 wt. %H 2 S0 4 Excess NaOH is removed from the solution to ob...

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Abstract

The invention discloses a preparation method of a ramee / expanded graphite composite fiber adsorbing material. On the basis of the functions of corrosion resistance, bacterial resistance, mold resistance and the like by utilizing different degrees of inhibitory effects of ramee (containing, pyrimidine, purine and other molecules) on Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and the like, the ramee used as a matrix raw material and the expanded graphite are synthesized into a composite fiber, and the ramee / expanded graphite composite fiber and boehmite mainly comprising aluminum hydroxide are prepared into a bioactive adsorbing material. The ultrafiltration water-adsorbing material can generate positive charges, and adsorb negatively charged microbes and bacteriophages, thereby achieving the goal of almost adsorbing all the microbes and bacteriophages in water. Especially after a low-current low-voltage external power source is switched on, the water purification effect is better. The adsorbing material provided by the invention has the characteristics of accessible materials, low manufacturing cost, low requirements for the working environment and high adsorbability, and can be widely used in the fields of medicine, veterinary medicine, food industry, water and solution purification related to the microbial process, and the like.

Description

technical field [0001] The invention belongs to the technical field of adsorption materials, and in particular relates to a preparation method of a ramie cellulose ultrafiltration water adsorption material. Background technique [0002] Ramie belongs to the genus Ramie of the family Urticaceae, and the length of the single fiber of ramie is 60-250mm. The diameter is 17-64um, and the cross section is polygonal and oval. There is a groove-like cavity in the middle of the fiber, the tube wall is porous, and is slender, tough, light in texture, and quick in absorbing and dissipating moisture, so the air permeability is about three times higher than that of cotton fiber. It has different degrees of inhibitory effects on Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, etc., and has anti-corrosion, anti-bacteria, and anti-mildew functions. [0003] [0004] Ramie is a national treasure of our country. The output of ramie in our country accounts for more than 9...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28
Inventor 张迎晨吴红艳
Owner 南京意西欧环境科技有限公司
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