Antibacterial filter paper and preparation method thereof

A filter paper and pretreatment technology, applied in the direction of filter paper, separation methods, chemical instruments and methods, etc., can solve the problems of no antibacterial effect and poor antibacterial effect, and achieve significant promotion value and stable antibacterial performance

Active Publication Date: 2017-12-22
HUNAN ZHENGJIA SPECIAL MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defect that the current filter paper only has the ability to filter dust and impurity particles in the air or liquid, and has no antibacterial effect or poor antibacterial effect, the present invention proposes an antibacterial filter paper and its preparation method. The prepared filter paper has a long-lasting antibacterial effect

Method used

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  • Antibacterial filter paper and preparation method thereof

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Effect test

Embodiment 1

[0023] A preparation method of antibacterial filter paper, comprising the following steps:

[0024] (1) Filter paper pretreatment: Add the filter paper to the silane coupling agent KH-550 aqueous solution, the mass volume ratio (g / mL) of the filter paper and the silane coupling agent is 1:6, stir at a low speed for 1 hour, take it out to dry, and then Put it in a vacuum drying oven, first dry at 50°C for 2 hours, and then dry at 80°C for 1 hour to obtain pretreated filter paper; the filter paper is glass fiber filter paper, and the glass fiber content accounts for more than 50% of the total mass of the filter paper ;

[0025] (2) Styrene grafting: add the pretreated filter paper in step (1) to the solvent 1,2-dichlorobenzene, stir evenly, then add catalyst and styrene, and stir for 2 hours to carry out grafting reaction; the catalyst For CuBr / bipyridine, the mass / volume / volume ratio (g / mL / mL) of filter paper, 1,2-dichlorobenzene and styrene is 1:20:8;

[0026] (3) Quaterniza...

Embodiment 2

[0028] A preparation method of antibacterial filter paper, comprising the following steps:

[0029] (1) Filter paper pretreatment: add the filter paper to the silane coupling agent KH-550 aqueous solution, the mass volume ratio (g / mL) of the filter paper and the silane coupling agent is 1:7, stir at a low speed for 1.5h, take it out and dry it in the air. Then it is placed in a vacuum drying oven, first dried at 50°C for 2.5h, and then dried at 80°C for 2h to obtain pretreated filter paper; the filter paper is glass fiber filter paper, and the glass fiber content accounts for 50% of the total mass of the filter paper. %above;

[0030](2) Styrene grafting: add the pretreated filter paper in step (1) to the solvent 1,2-dichlorobenzene, stir evenly, then add catalyst and styrene, and stir for 2.5h to carry out grafting reaction; The catalyst is CuBr / bipyridine, and the mass / volume / volume ratio (g / mL / mL) of filter paper, 1,2-dichlorobenzene and styrene is 1:22:5;

[0031] (3) Qu...

Embodiment 3

[0033] A preparation method of antibacterial filter paper, comprising the following steps:

[0034] (1) Filter paper pretreatment: add the filter paper to the silane coupling agent KH-550 aqueous solution, the mass volume ratio (g / mL) of the filter paper and the silane coupling agent is 1:8, stir at a low speed for 2 hours, take it out and dry it, then Place it in a vacuum drying oven, first dry at 55°C for 2.5h, then dry at 85°C for 1h to obtain pretreated filter paper; the filter paper is glass fiber filter paper, and the glass fiber content accounts for 50% of the total mass of the filter paper above;

[0035] (2) Styrene grafting: add the pretreated filter paper in step (1) to the solvent 1,2-dichlorobenzene, stir evenly, then add catalyst and styrene, and stir for 3 hours to carry out grafting reaction; the catalyst For CuBr / bipyridine, the mass / volume / volume ratio (g / mL / mL) of filter paper, 1,2-dichlorobenzene and styrene is 1:26:6;

[0036] (3) Quaternization treatmen...

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Abstract

The invention provides antibacterial filter paper and a preparation method thereof, relating to the technical field of preparation of filter paper. The preparation method comprises the steps of firstly preprocessing the surface of filter paper by virtue of an amino functional group silane coupling agent, grafting styrene to the surface of the filter paper by taking CuBr/dipyridyl as a catalytic system and 1,2-dichlorobenzene as a solvent, and finally carrying out quaternization on the grafted filter paper by virtue of alkyl bromide, so as to obtain the antibacterial filter paper. The prepared antibacterial filter paper has strong antibacterial funcition and good durability, the defects that the antibacterial components are not uniform and are poor in adhesion property, the use period is short, and the like because formed filter paper is soaked and sprayed with an antibacterial agent in the prior art are overcome, and the antibacterial filter paper has remarkable promotional values.

Description

technical field [0001] The invention relates to the technical field of filter paper preparation, in particular to an antibacterial filter paper and a preparation method thereof. Background technique [0002] Filters refer to accessories that filter impurities or gases through filter paper, generally referring to automotive filters. According to different filtering functions, it is divided into: oil filter, fuel filter (gasoline filter, diesel filter, oil-water separator, hydraulic filter), air filter, air conditioning filter, etc. The filter protects the engine by filtering the air, oil and fuel entering the engine, and at the same time improves the working efficiency of the engine. It is an essential part of the car engine. According to the "2013-2017 China's filter manufacturing industry production and sales demand and investment forecast analysis report" data show that since China joined the WTO in 2001, it has entered the tenth year, and China's auto industry has achiev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/08D21H25/02
CPCD21H25/02D21H27/08
Inventor 陈庆司文彬
Owner HUNAN ZHENGJIA SPECIAL MATERIAL
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