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Method for preparing paper making antibacterial agents by using oil-tea camellia shells as carriers

A technology of Camellia oleifera husk and antibacterial agent, which is applied to paper and other directions, can solve the problems of low retention rate and poor stability, and achieve the effect of easy operation, low cost and high retention rate

Inactive Publication Date: 2012-07-18
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the disadvantages of low retention rate and poor stability of the current inorganic substance-immobilized metal ion antibacterial agent in papermaking, an antibacterial agent for papermaking of camellia oleifera shell with good product stability and high retention rate and its preparation process are provided. Attached to the surface and micropores of camellia oleifera shell through electrostatic, ion chelation, etc., it has high dispersion and stability to achieve efficient and long-lasting antibacterial effect

Method used

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  • Method for preparing paper making antibacterial agents by using oil-tea camellia shells as carriers
  • Method for preparing paper making antibacterial agents by using oil-tea camellia shells as carriers
  • Method for preparing paper making antibacterial agents by using oil-tea camellia shells as carriers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 10 kilograms of oil-tea camellia husk particles crushed to a particle size range of 800um into 30 kilograms of glutaraldehyde aqueous solution with a mass concentration of 3%, stir and add 40 kilograms of concentrated hydrochloric acid, and stir for 4 h at 60℃; add 1 Kg of silver nitrate solids, stir to completely dissolve and continue to stir for 6 hours; filter, wash the filter residue with distilled water until the filtrate is neutral, add the filter residue to 5 kg of sodium borohydride with a mass concentration of 3% at 60℃ Stir the reaction for 2 h; filter, wash the filter residue with distilled water until the filtrate is neutral, and dry the filter residue at 60°C to a constant weight to obtain the camellia husk-based papermaking antibacterial agent.

[0023] The oil-tea husk-based papermaking antibacterial agent prepared in this example was tested for the diameter of the inhibition zone of different strains. The results showed that the diameter of the inhibitio...

Embodiment 2

[0025] Add 10 kg of camellia oleifera husk particles crushed to a particle size range of 500um into 25 kg of glutaraldehyde aqueous solution with a mass concentration of 3%, stir and add 350 kg of concentrated hydrochloric acid, and stir for 4 h at 60℃; add 1.5 Kg of copper sulfate pentahydrate, stir to completely dissolve and continue to stir for 8 hours; filter, wash the filter residue with distilled water until the filtrate is neutral, add the filter residue to 5 kg of sodium hydroxide aqueous solution with a mass concentration of 3%. Stir and react for 1.5 h at 70°C; filter, wash the filter residue with distilled water until the filtrate is neutral, and dry the filter residue at 70°C to a constant weight to obtain the camellia husk-based paper-making antibacterial agent.

[0026] The oil-tea husk-based papermaking antibacterial agent prepared in this example was tested for the diameter of the inhibition zone of different strains. The results showed that the diameter of the inh...

Embodiment 3

[0028] Add 10 kg of camellia oleifera husk particles crushed to a particle size range of 1000 μm into 28 kg of glutaraldehyde aqueous solution with a mass concentration of 3%, stir and add 400 kg of concentrated hydrochloric acid, and stir for 4 h at 60°C; Add 3.5 kg of zinc chloride solid, stir to completely dissolve and continue stirring for 6 hours; filter, wash the filter residue with distilled water until the filtrate is neutral, add the filter residue to 5 kg of sodium hydroxide with a mass concentration of 3%. Stir the reaction at 65°C for 2.5h; filter, wash the filter residue with distilled water until the filtrate is neutral, and dry the filter residue at 70°C to a constant weight to obtain the camellia husk-based paper-making antibacterial agent.

[0029] The oil-tea husk-based papermaking antibacterial agent prepared in this example was tested on the diameter of the inhibition zone of different strains. The results showed that the diameter of the inhibition zone of Esch...

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Abstract

The invention relates to a method for preparing paper making antibacterial agents by using oil-tea camellia shells as carriers. The method is characterized in that 10 weight parts of oil-tea camellia shells particles are added into 25 to 30 weight parts of glutaraldehyde water solution, 350 to 400 weight parts of concentrated hydrochloric acid is added in a stirring way, and the reaction lasts 4 hours at 60 to 75 DEG C; 0.5 to 5 weight parts of sliver, zinc or copper metal compound solid is added, and the materials are continuously stirred for 4 to 12 hours after the dissolution; filtering, washing slag filtering are carried out until the materials to neutral, 5 weight parts of alkali liquor or reducing agents are added into the filter slag, and the materials are stirred at 40 to 80 DEG C for reaction for 0.5 to 3 hours; after the filtering is filtered slag and washed to the neutral state, and the filter slag is dried at 40 to 80 DEG C to obtain oil-tea camellia shell base paper making antibacterial agents. The antibacterial agents have the advantages that the oil-tea camellia shells are used as preparation raw materials, the resources are wide, the price is low, and the waste discharge is reduced; the preparation process is simple, the cost is lower, and high remaining rate is realized in pulp; and the preparation conditions are mild and can be easily controlled, the process equipment is less, and the operation is easy.

Description

Technical field [0001] The invention relates to a preparation method of an antibacterial agent, in particular to a preparation method for preparing an antibacterial agent for papermaking by using camellia oleifera husks, and belongs to the technical field of antibacterial materials. Background technique [0002] Since "SARS" (in 2003, there were 2781 cases of non-iodine pneumonia worldwide, including 111 deaths), "avian influenza" and "H1N1 influenza" (as of January 2, 2009, a total of 31 provinces in my country Since the emergence of 120940 confirmed cases), people have paid more attention to the safety of the surrounding environment, especially the antibacterial properties of various materials and products that are closely related to people’s lives. Paper products are indispensable products in people’s production and life. They have been widely used in daily life. Toilet paper, facial tissues, kitchen paper, food packaging paper, children’s reading paper, decorative paper, sanit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/36C08H8/00
Inventor 卢玉栋吴宗华游瑞云翁景峥林梅芳林珊戴妙霞徐玉定
Owner FUJIAN NORMAL UNIV
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