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A kind of antibacterial filter paper and preparation method thereof

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

Active Publication Date: 2019-11-19
HUNAN ZHENGJIA SPECIAL MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A kind of antibacterial filter paper and preparation method thereof

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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 aqueous solution of silane coupling agent KH-550, the mass-to-volume ratio (g / mL) of the filter paper and the silane coupling agent is 1:6, stir at low speed for 1 hour, take it out to dry, and then Put it in a vacuum drying box, first dry it at 50 °C for 2 hours, and then dry it at 80 °C for 1 hour to obtain a 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: adding the pretreated filter paper in step (1) into the solvent 1,2-dichlorobenzene, stirring evenly, then adding the catalyst and styrene, and stirring for 2 hours to carry out the grafting reaction; the catalyst is CuBr / bipyridine, and the mass / volume / volume ratio (g / mL / mL) of filter paper, 1,2-dichlorobenzene and st...

Embodiment 2

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

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

[0030](2) Styrene grafting: adding the pretreated filter paper in step (1) into the solvent 1,2-dichlorobenzene, stirring evenly, then adding catalyst and styrene, and stirring for 2.5 hours to carry out the grafting reaction; The catalyst is CuBr / bipyridine, and the mass / volume / volume ratio (g / mL / mL) of filter paper, 1,2-dichlorobenzene and styrene (g / mL / m...

Embodiment 3

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

[0034] (1) Pretreatment of filter paper: Add the filter paper to the aqueous solution of silane coupling agent KH-550, the mass-volume ratio (g / mL) of filter paper and silane coupling agent is 1:8, stir at low speed for 2 hours, take it out to dry, and then It is placed in a vacuum drying box, first dried at 55 °C for 2.5 hours, and then dried at 85 °C for 1 hour 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: adding the pretreated filter paper in step (1) into the solvent 1,2-dichlorobenzene, stirring evenly, then adding catalyst and styrene, and stirring for 3 hours to carry out the 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 1:2...

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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] A filter refers to an accessory that filters impurities or gases through filter paper, generally referring to a car filter. 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 also improves the working efficiency of the engine. It is an indispensable part of the car engine. According to the "2013-2017 China Filter Manufacturing Industry Production and Sales Demand and Investment Forecast Analysis Report" data shows that since China joined the WTO in 2001, it has entered the tenth year, and China's automobile industry has achieved ra...

Claims

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Application Information

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Patent Type & Authority Patents(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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