CN102888785A

CN102888785A - Zirconium oxide-loaded silicone air filtration paper and preparation method thereof

Info

Publication number: CN102888785A
Application number: CN2012103513611A
Authority: CN
Inventors: 陈登宇
Original assignee: Bengbu Phoenix International Co Ltd
Current assignee: ANHUI PHOENIX FILTER CO., LTD.
Priority date: 2012-09-20
Filing date: 2012-09-20
Publication date: 2013-01-23
Anticipated expiration: 2032-09-20
Also published as: CN102888785B

Abstract

The invention discloses zirconium oxide-loaded silicone air filtration paper and a preparation method thereof. The air filtration paper comprises the following raw materials in part by weight: 70 to 80 parts of wood pulp, 20 to 30 parts of jute pulp, 10 to 20 parts of ceramic fiber, 2 to 5 parts of modified silicone, 1 to 3 parts of nano calcium carbonate, 2 to 4 parts of activated carbon, 1 to 2 parts of nano aluminium oxide, 0.5 to 0.8 part of ammonium polyphosphate, 2 to 3 parts of acrylic latex, 1 to 2 parts of polyethylene glycol, 0.5 to 1 part of tricresyl phosphate, 0.5 to 1 part of anilmomethyl triethoxy silane, 0.4 to 0.8 part of sodium lauryl sulfate and 2 to 5 parts of modified polyethyleneimine. The prepared filtration paper has the advantages of high water permeability, filtration accuracy, bursting strength and tensile strength, large filtration area, high temperature resistance and the like, the maximum aperture is small, and the filtration efficiency reaches 99.98 percent; and the filtration paper has a stable performance index under the working conditions of normal temperature and high temperature and has relatively good heat resistance and filtration effects.

Description

A kind of silica gel loaded with zirconium oxide air paper and preparation method thereof

Technical field

The present invention relates to a kind of filter paper of filter, be specifically related to a kind of silica gel loaded with zirconium oxide air paper and preparation method thereof.

Background technology

Automobile air filter paper is the core material of making air cleaner of vehicle engine; because air filter is arranged in the gas handling system of engine; and engine when work usually can amplification quantity heat, wish usually that therefore this air filtration media possesses good strainability and higher filtering efficiency and certain heat-resisting quantity, WATER RESISTANCE and bursting strength.Existing Adsorption of Filter Paper is relatively poor, and strainability is low, thereby causes filtering efficiency low, can only filtering machine oil in the impurity of 50-60%; It is poor that existing filter paper also has heat-resisting quantity in addition, poor water resistance, the shortcoming such as tensile strength is low, bursting strength is poor, the service life of having limited filter paper.

Summary of the invention

The object of the invention is to for the deficiencies in the prior art, a kind of silica gel loaded with zirconium oxide air paper and preparation method thereof is provided, the performances such as the absorption property of raising filter paper and bursting strength, thereby the service life of improving filtering efficiency and the prolongation filter paper of filter paper.

For achieving the above object, the technical solution used in the present invention is as follows:

A kind of silica gel loaded with zirconium oxide air paper is made by the raw material of following weight portion: wood pulp 70-80, jute pulp 20-30, ceramic fibre 10-20, modified silica-gel 2-5, nano-calcium carbonate 1-3, active carbon 2-4, nano aluminium oxide 1-2, APP 0.5-0.8, pure-acrylic emulsion 2-3, polyethylene glycol 1-2, tricresyl phosphate 0.5-1, anilinomethyl triethoxysilane 0.5-1, sldium lauryl sulfate 0.4-0.8, modified polyethyleneimine 2-5.

Described modified silica-gel is loaded zirconia on silica gel, concrete modifying process is as follows: first silica gel is put into the 0.1-0.2mol/L zirconium oxychloride solution, be to flood in the 120-150r/min water bath with thermostatic control oscillator at rotating speed, temperature is 70-80 ℃, take out to filter behind the dipping, transfer to filter cake in the crucible, at last in Muffle furnace in 400-500 ℃ of high-temperature roasting 2-3h, be washed with distilled water to neutrality after taking out cooling, oven dry namely gets modified silica-gel.

Described modified polyethyleneimine is made by following method: add an amount of water to polymine, regulate PH=7-8, be warming up to 80-90 ℃, the crosslinking agent TAC and the continuation reaction that add emulsion-type bisphenol A epoxide resin and the 1-2% of solution weight 20-25%, stopped heating when viscosity reaches requirement is cooled to room temperature and gets final product.

The described gasoline filter preparation method of high-temperature fibre filter paper may further comprise the steps:

(1) first modified silica-gel, nano-calcium carbonate, active carbon, nano aluminium oxide are mixed, add again anilinomethyl triethoxysilane, fully stir 10-20min after, leave standstill 5-8min, then 100-120 ℃ of lower oven dry, obtain powder body material;

(2) wood pulp, jute pulp, ceramic fibre are weighed by proportioning respectively, put into pulper, adding an amount of sulfuric acid water size degradation is the slurry of 5-6% to solid content, adds modified polyethyleneimine and continues size degradation 1-2h, makes mixed slurry;

(3) powder body material that step (1) is made adds in the mixed slurry, add APP, tricresyl phosphate, sldium lauryl sulfate, be heated to 70-80 ℃, stir, after fluffer is discongested, defibrination again, add an amount of water size mixing to solid content be 2-3%, the slurry that mixes up aspirates dehydration to the l Water Paper after the moulding under the vacuum condition of 0.05-0.08Mpa after the forming web moulding;

(4) dilution of pure-acrylic emulsion and polyethylene glycol is mixed rear dilution 10-20 doubly, then be sprayed at equably on the filter paper after the moulding, after the been sprayed filter paper is placed on 180-200 ℃ of lower the oven dry, namely get silica gel loaded with zirconium oxide air paper of the present invention.

The present invention and prior art have following beneficial effect:

The present invention has prepared the silica gel loaded with zirconium oxide adsorbent by loaded zirconia on silica gel, has improved absorption property and the strainability of filter paper, in addition by polymine is carried out modification, the mechanical property of filter paper is had significantly humidification.The filter paper that the present invention prepares has good water permeability, filter area is large, the maximum diameter of hole is little, filtering accuracy is high, bursting strength is strong, high temperature resistant, tensile strength advantages of higher, filter efficiency reaches 99.98%, stable performance indications are arranged under normal temperature and worst hot case, have preferably heatproof and filter effect.

The specific embodiment

The present invention is further illustrated below in conjunction with specific embodiment.

Embodiment

A kind of silica gel loaded with zirconium oxide air paper is made by the raw material of following weight portion: 80 parts of wood pulps, 30 parts of jute pulps, 20 parts of ceramic fibres, 5 parts of modified silica-gels, 3 parts of nano-calcium carbonates, 4 parts of active carbons, 2 parts of nano aluminium oxides, 0.8 part of APP, 3 parts of pure-acrylic emulsions, 2 parts of polyethylene glycol, 1 part of tricresyl phosphate, 1 part of anilinomethyl triethoxysilane, 0.8 part of sldium lauryl sulfate, 5 parts of modified polyethyleneimines.

Described modified silica-gel is loaded zirconia on silica gel, concrete modifying process is as follows: first silica gel is put into the 0.15mol/L zirconium oxychloride solution, be to flood in the 140r/min water bath with thermostatic control oscillator at rotating speed, temperature is 70 ℃, take out to filter behind the dipping, transfer to filter cake in the crucible, at last in Muffle furnace in 450 ℃ of high-temperature roasting 2h, be washed with distilled water to neutrality after taking out cooling, oven dry namely gets modified silica-gel.

Described modified polyethyleneimine is made by following method: add an amount of water to polymine, regulate PH=8, be warming up to 85 ℃, add the emulsion-type bisphenol A epoxide resin of solution weight 22% and 2% crosslinking agent TAC and continuation reaction, stopped heating when viscosity reaches requirement is cooled to room temperature and gets final product.

(1) first modified silica-gel, nano-calcium carbonate, active carbon, nano aluminium oxide are mixed, add again anilinomethyl triethoxysilane, fully stir 20min after, leave standstill 6min, then 120 ℃ of lower oven dry, obtain powder body material;

(2) wood pulp, jute pulp, ceramic fibre are weighed by proportioning respectively, put into pulper, add an amount of sulfuric acid water size degradation and to solid content be 5% slurry, add modified polyethyleneimine and continue size degradation 2h, make mixed slurry;

(3) powder body material that step (1) is made adds in the mixed slurry, add APP, tricresyl phosphate, sldium lauryl sulfate, be heated to 75 ℃, stir, after fluffer is discongested, defibrination again, add an amount of water size mixing to solid content be 2%, the slurry that mixes up aspirates dehydration to the l Water Paper after the moulding under the vacuum condition of 0.06Mpa after the forming web moulding;

(4) dilution of pure-acrylic emulsion and polyethylene glycol is mixed 20 times of rear dilutions, then be sprayed at equably on the filter paper after the moulding, after the been sprayed filter paper is placed on 200 ℃ of lower oven dry, namely get silica gel loaded with zirconium oxide air paper of the present invention.

After testing, the one-tenth paper air permeability of the filter paper that makes of the present invention is at 93 L/m ²S, the maximum diameter of hole is 48 μ m, and average pore size is 30 μ m, and wet expansion is 0.5%, and wet bursting strength is 392KPa, and tensile strength is 14.88kNm, and filtering accuracy is 5 μ m, and removal of impurity is 99.98%.

Claims

1. silica gel loaded with zirconium oxide air paper, it is characterized in that, made by the raw material of following weight portion: wood pulp 70-80, jute pulp 20-30, ceramic fibre 10-20, modified silica-gel 2-5, nano-calcium carbonate 1-3, active carbon 2-4, nano aluminium oxide 1-2, APP 0.5-0.8, pure-acrylic emulsion 2-3, polyethylene glycol 1-2, tricresyl phosphate 0.5-1, anilinomethyl triethoxysilane 0.5-1, sldium lauryl sulfate 0.4-0.8, modified polyethyleneimine 2-5.

2. silica gel loaded with zirconium oxide air paper according to claim 1, it is characterized in that, described modified silica-gel is loaded zirconia on silica gel, concrete modifying process is as follows: first silica gel is put into the 0.1-0.2mol/L zirconium oxychloride solution, be to flood in the 120-150r/min water bath with thermostatic control oscillator at rotating speed, temperature is 70-80 ℃, take out behind the dipping and filter, in transferring to filter cake in the crucible, at last in Muffle furnace in 400-500 ℃ of high-temperature roasting 2-3h, be washed with distilled water to neutrality after taking out cooling, oven dry namely gets modified silica-gel.

3. silica gel loaded with zirconium oxide air paper according to claim 1, it is characterized in that, described modified polyethyleneimine is made by following method: add an amount of water to polymine, regulate PH=7-8, be warming up to 80-90 ℃, add crosslinking agent TAC and the continuation reaction of emulsion-type bisphenol A epoxide resin and the 1-2% of solution weight 20-25%, stopped heating when viscosity reaches requirement is cooled to room temperature and gets final product.

4. a gasoline filter as claimed in claim 1 is characterized in that may further comprise the steps with the preparation method of high-temperature fibre filter paper: