Preparation method for China-hemp antibacterial fiber material

An antibacterial fiber and hemp technology, which is applied in fiber treatment, plant fiber, biochemical fiber treatment, etc., can solve the problems of difficulty in meeting human antibacterial needs, the reduction of antibacterial properties of hemp fiber, and the loss of antibacterial components, and achieve excellent antibacterial properties. Long-lasting antibacterial effect and easy operation

Active Publication Date: 2018-11-16
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, most of the antibacterial components of the hemp fiber used for textiles are lost during the degumming process, resulting in the reduc...

Method used

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  • Preparation method for China-hemp antibacterial fiber material
  • Preparation method for China-hemp antibacterial fiber material
  • Preparation method for China-hemp antibacterial fiber material

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[0030] The invention discloses a preparation method of hemp antibacterial fiber material, which comprises the following steps:

[0031] (1) reacting hemp fibrils with alkali to obtain alkalized hemp fibers;

[0032] (2) oxidizing the alkalized hemp fiber with an oxidizing agent to obtain oxidized hemp fiber;

[0033] (3) reacting the oxidized hemp fiber with triethylenetetramine to obtain aminated hemp fiber;

[0034] (4) reacting the aminated hemp fiber with glycidyltrimethylammonium halide to obtain a hemp antibacterial fiber material containing a quaternary ammonium antibacterial functional group.

[0035] The preparation method of the hemp antibacterial fiber material described in the embodiment of the present invention is simple in process, easy to operate, easy to control, and friendly to the environment.

[0036] The embodiment of the present invention uses commercial-grade hemp fibrils as the basic raw material; specifically, the count of the hemp fibrils can be 1500...

Embodiment 1

[0058] (1) Prepare 160mL of 18% sodium hydroxide solution, then add 2.0g hemp fibrils (for the actual situation, see figure 1 middle left part), fully swell the fibers, soak and react at 20°C for 60 minutes, take out the fibers, wash with distilled water several times, and dry in a constant temperature drying oven at 40°C to constant weight;

[0059] (2) Take by weighing 1.5g of the fiber that step (1) makes, add to 120mL concentration and be 40g / L NaIO 4 In the solution, after the fiber is fully swollen, react in a constant temperature shaking box at 50°C for 60 minutes, take out the fiber, wash it with distilled water several times, and dry it in a constant temperature drying box at 40°C to constant weight;

[0060] (3) Weigh 1.0g of the fiber prepared in step (2), add it to 80mL of pure triethylenetetramine solution, react in a constant temperature shaking box at 50°C for 6h, take out the fiber, wash it with distilled water several times, and place it in a constant temperat...

Embodiment 2

[0068] (1) Prepare 80 mL of 10% sodium hydroxide solution, then add 4.0 g of hemp fibrils to fully swell the fibers, soak for 120 min at a temperature of 30 ° C, take out the fibers, wash with distilled water several times, and dry them in a constant temperature drying oven at 40 ° C until constant Heavy;

[0069] (2) Take by weighing 3.5g of the fiber that step (1) makes, add to 70mL concentration and be 10g / L NaIO 4 In the solution, after the fiber is fully swollen, react in a constant temperature shaking box at 40°C for 240 minutes, take out the fiber, wash it with distilled water several times, and dry it in a 40°C constant temperature drying oven to constant weight;

[0070] (3) Weigh 3.0g of the fiber prepared in step (2), add it to 60mL of pure triethylenetetramine solution, react in a constant temperature shaking box at 60°C for 12h, take out the fiber, wash it several times with distilled water, and place it in a constant temperature drying oven at 40°C Dry to consta...

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Abstract

The invention provides a preparation method for a China-hemp antibacterial fiber material. The preparation method comprises the following steps: (1) reacting China-hemp fibrils with a base to obtain alkalized China-hemp fibers; (2) oxidizing the alkalized China-hemp fibers with an oxidizing agent to obtain oxidized China-hemp fibers; (3) reacting the oxidized China-hemp fibers with triethylenetetramine to obtain aminated China-hemp fibers; and (4) reacting the aminated China-hemp fibers with glycidyl trimethylammonium halide to obtain the China-hemp antibacterial fiber material containing a quaternary ammonium anti-bacterial functional group. According to the invention, the quaternary ammonium anti-bacterial functional group is covalently grafted into a China-hemp fiber skeleton structure,so the China-hemp antibacterial fibers are allowed to contain the quaternary ammonium antibacterial functional group and have excellent antibacterial properties, no toxicity to human beings, long-lasting antibacterial action and stable performance. The preparation method of the invention is simple in process, easy to opera and control, and friendly to environment. At the same time, the fibers obtained after the reactions are free of pungent amine smell, have good shape and mechanical strength, and can be applied to the development of various antibacterial functional textiles and the sterilization of industrial and domestic water.

Description

technical field [0001] The invention relates to the technical field of antibacterial materials and fiber modification, in particular to a preparation method of hemp antibacterial fiber material. Background technique [0002] As an important functional fiber material, antibacterial fiber can prevent the growth of bacteria, block the spread of diseases, keep the human body clean and hygienic, and prevent the deterioration and discoloration of textiles. It is especially important for the health and safety of personnel in combat, duty, firefighting and disaster relief. important role of substitution. At present, the preparation methods of antibacterial fibers mainly include blend spinning, electrospinning, finishing technology, chemical modification, etc. [0003] The hemp fiber itself contains certain antibacterial ingredients, which make hemp have certain antibacterial and anti-mildew properties. my country is the first country in the world to grow hemp (Hemp), and its outpu...

Claims

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Application Information

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IPC IPC(8): D06M11/38D06M11/30D06M13/328D06M13/463D06M101/06
CPCD06M11/30D06M11/38D06M13/328D06M13/463D06M16/00D06M2101/06
Inventor 常丽赵立宁李德芳段文杰黄思齐唐慧娟潘根
Owner INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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