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Fibrilia containing hemin and preparation method thereof

A technology of hemin and hemp fiber, applied in chemical instruments and methods, fiber treatment, plant fiber, etc., to achieve the effect of simple preparation process and easy operation

Inactive Publication Date: 2009-03-25
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Dissolving 5 grams of hemin powder in a mixed solution of 4 grams of sodium hydroxide and 991 grams of water to form hemin-sodium hydroxide aqueous solution;

[0027] (2) Immerse 2 grams of ramie fibers in 100 grams of the above-mentioned hemin-sodium hydroxide aqueous solution at 40 ° C, soak for 40 minutes, take them out and squeeze them dry, and spray them on the fibers with hydrochloric acid with a mass concentration of 0.1% to acidify them. fiber, the pH of the fiber is 5, and then dried at 80°C;

[0028] (3) Then bake at 130°C for 3 minutes, then wash the baked fibers in an aqueous solution with a mass percentage of 0.4% sodium hydroxide, rinse in water until neutral, and dry to obtain hemochloride Plain ramie fiber.

[0029] The obtained hemin-containing ramie fiber has a hemin grafting rate of 1% (that is, the hemin-containing mass percentage in the fiber is about 1%), and a formaldehyde elimination rate of 87%.

[0030] Detection method: Hang 2g of this f...

Embodiment 2

[0032] (1) Dissolving 4 grams of hemin powder in a mixed solution of 4 grams of sodium hydroxide and 992 grams of water to configure hemin-sodium hydroxide aqueous solution;

[0033] (2) Immerse 2 grams of flax fiber in 100 grams of the above-mentioned hemin-sodium hydroxide aqueous solution at 60 ° C, soak for 20 minutes, take it out and squeeze it dry, and spray it on the fiber with a mass concentration of 0.15% sulfuric acid to acidify Fiber, the pH of the fiber is 4, dried at 60°C;

[0034] (3) Then bake at 120°C for 4 minutes, then wash the baked fibers in an aqueous solution with a mass percentage of 0.4% sodium hydroxide, rinse in water until neutral, and dry to obtain hemoglobin Plain flax fiber.

[0035] The obtained fiber has a hemin grafting rate of 0.65% (that is, the mass percentage of hemin in the fiber is about 0.65%), and the formaldehyde elimination rate is 75%.

Embodiment 3

[0037] (1) Dissolving 2 grams of hemin powder in a mixed solution of 4 grams of sodium hydroxide and 994 grams of water to form hemin-sodium hydroxide aqueous solution;

[0038] (2) immerse 2 grams of hemp fiber in 100 grams of the above-mentioned hemin-sodium hydroxide aqueous solution at 35° C., soak for 45 minutes, take it out and squeeze it dry, and spray it on the fiber with 0.2% acetic acid with a mass concentration to acidify fiber, the pH of the fiber is 6, dried at 40°C;

[0039] (3) Then bake at 150°C for 1 minute, then wash the baked fibers in an aqueous solution with a mass percentage of 0.4% sodium hydroxide, rinse in water until neutral, and dry to obtain hemochloride Vegetarian hemp fiber.

[0040] The hemin grafting rate of the obtained fiber is 0.35% (ie the mass percentage of hemin in the fiber is about 0.35%), and the elimination rate of formaldehyde is 68%.

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 relates to a jute fiber containing hemin and a preparation method thereof. The jute fiber is the one that is modified by solution containing 0.15-1% hemin by weight percentage; the preparation method includes the following steps: 1) soaking the jute fiber into the hemin-sodium hydroxide water solution, treating for 20-60 minutes at the temperature of 20-60 DEG C, then extruding the water in the fiber and acidify the fiber in acidic solution and then drying at the temperature of 25-80 DEG C; and 2) baking the fiber obtained in step (1) for 1-5 minutes at the temperature of 110-150 DEG C, then washing the fiber in the sodium hydroxide solution, and then rinsing the fiber in clean water until the solution gets neutral, and then drying the fiber to obtain the jute fiber containing the hemin. The jute fiber provided by the invention can absorb and degrade the indoor organic reducing gases containing sulfur, nitrogen or aldehydes and can be used for preparing the formaldehyde-free textile.

Description

technical field [0001] The invention belongs to the field of functional fibers, in particular to a hemp fiber containing hemin and a preparation method thereof. Background technique [0002] With the widespread use of new building materials and decorative materials, indoor environmental pollutants are increasing day by day, and the environment is deteriorating day by day. There are thousands of common harmful substances indoors, among which formaldehyde has become one of the most dangerous pollution sources due to its ubiquity, wide range of sources, great harm to the human body, and long release cycle. [0003] At present, the air purification technologies adopted more at home and abroad to control indoor formaldehyde pollution mainly include: photocatalytic technology, physical adsorption, chemical adsorption, biotechnology, etc. However, the above methods still have certain defects in terms of harsh reaction conditions, adsorption saturation, secondary pollution to the e...

Claims

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Application Information

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IPC IPC(8): D06M15/15B01D53/72B01J20/22D06M101/06
Inventor 刘洪玲沈海蓉于伟东尤玲玲赵冬至储晓露章悦庭
Owner DONGHUA UNIV