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Method for preparing antibiosis paper

A technology of antibacterial paper and antibacterial agent, applied in the field of preparation of nano antibacterial paper, can solve problems such as easy failure, disappearance of antibacterial effect, failure to achieve antibacterial purpose, etc., to achieve enhanced physical properties, long-lasting antibacterial effect, increased strength and water resistance performance effect

Inactive Publication Date: 2005-01-12
GUIZHOU UNIV
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Problems solved by technology

With the release of metal ions, the antibacterial effect of this antibacterial paper disappears. At the same time, the release of metal ions will also cause environmental pollution, and the cost of this type of antibacterial agent is relatively high.
The antibacterial paper prepared by organic antibacterial agent, the antibacterial agent is not firmly combined with the paper, and it is easy to fail and fail to achieve the antibacterial purpose

Method used

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Embodiment Construction

[0009] Embodiments of the present invention: the present invention firstly prepares nanopowders with antibacterial functional groups, and uses silica nanoparticles to generate covalently linked quaternary ammonium salt polymers through the covalent modification method disclosed in Chinese Patent Application No. 03117920.7 Antibacterial agent nano powder. The method is: 10g of nano-particle silicon dioxide, in 100ml of solvent chloroform, react with 2ml of 4-bromobutyryl chloride at room temperature with stirring, so that the surface of the nanomaterial is activated by 4-bromobutyryl chloride, and the activated nanomaterial is collected. Wash with methanol solvent, then place in 100ml of pentaerythritol solvent, add 10g of polyethyleneimine and appropriate amount of potassium hydroxide, stir and react at 90°C to obtain nanoparticles covalently linked by polyethyleneimine, after collection Wash several times. Place in 100ml of pentaerythritol, add 10ml of 1-bromohexane and an a...

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Abstract

This invention is a method how to make a paper has bacteria-static function. It uses the nanopowder it has the function of bacteria-static combine with paper to produce antibiotic paper. The elementary nanopowder has bacteria-static function because they have been combined with quarter-nary ammonic-salt or quarter-nary phosphate antibiotic polymer use the co-valence decorated method. Put the antibiotic nanopowder into paper pulp according to the ratio of 0.01-0.1% then make up a bacteria-static paper.

Description

Technical field: [0001] The invention relates to a preparation method of nanometer antibacterial paper. technical background: [0002] The existing antibacterial paper preparation methods are divided into two categories: one is to combine inorganic metal ions such as silver, copper, zinc, etc. The principle of antibacterial paper is to use the release of metal ions to achieve antibacterial purposes; the second is to combine organic antibacterial agents such as organic acids, antibacterial peptides, and biological enzymes with pulp to prepare antibacterial paper. The above two methods have defects. The antibacterial performance of the antibacterial paper prepared by using the inorganic metal ion antibacterial agent is to act on the bacteria through the released metal ions to inactivate the bacteria to achieve the antibacterial purpose. With the release of metal ions, the antibacterial effect of the antibacterial paper disappears. At the same time, the release of metal ions w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/36
Inventor 邱树毅王广莉叶丹谢沛初曹建新周宏翔吴鑫颖
Owner GUIZHOU UNIV
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