CN102888784B - Filter filtering paper and preparation method thereof - Google Patents
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- CN102888784B CN102888784B CN201210351360.7A CN201210351360A CN102888784B CN 102888784 B CN102888784 B CN 102888784B CN 201210351360 A CN201210351360 A CN 201210351360A CN 102888784 B CN102888784 B CN 102888784B
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Abstract
The invention discloses an environment-friendly efficient filter filtering paper. The environment-friendly efficient filter filtering paper is prepared by the following raw materials in part by weight: 40-50 parts of softwood pulp, 30-40 parts of waste paper pulp, 20-30 parts of high-silica glass fiber, 2-5 parts of modified vermiculite, 1-3 parts of zeolite molecular sieve, 2-4 parts of nanometer calcium, 1-2 parts of modified pulverized fuel ash, 2-3 parts of water-solubility organic silicon resin emulsion, 1-2 parts of water-solubility polytetrafluoroethylene emulsion, 0.5-0.8 parts of ammonium polyphosphate, 3-4 parts of glycerol triacetate, 0.5-1 parts of diethanolamide, 0.5-1 parts of silane coupling agent KH560, 0.4-0.8 parts of sodium dodecyl sulfate, 0.5-1 parts of antioxidant DSTP, and 4-6 parts of polyethylenimine. The filtering paper prepared by the method provided by the invention has the advantages of being good in water permeability, large in filtering area, small in maximum diameter of hole, high in filtering precision, strong in bursting strength, high-temperature-resistant, good in water resistance and the like, can achieve the filtering efficiency by 99.98%, has stable performance index at atmospheric and high-temperature working conditions, as well as better temperature resistance and filtering effects.
Description
Technical field
The present invention relates to a kind of filter paper of filter, specifically relate to a kind of filter paper of filter and preparation method thereof.
Background technology
Filter paper of filter, it is the filtering material of joining and overlapping for automobile filter, it is generally used for engine interior, impurity in filtered air, machine oil and fuel oil, people are often likened to engine " heart " of automobile, so, cleaner is automobile " lung ", the responsibility of bearing decontamination in automobile, preventing engine component wear, extend its life-span.The filtering material of automobile filter adopts filter paper more, so the quality of filter paper directly affects the filtering efficiency of cleaner, existing filter paper has following shortcoming:
(1) filter efficiency is low, filtering accuracy is poor, causes cleaner filtering efficiency low, can only filtering 50-60% impurity;
(2) poor performance such as high temperature resistant, water-fast, bursting strength, causes service life short;
(3) quality fluctuation is large, poor stability.
Summary of the invention
The object of the invention is to, for the deficiencies in the prior art, provides a kind of filter paper of filter and preparation method thereof, improves the performances such as the filter efficiency of filter paper and high temperature resistant, bursting strength, thereby extends the service life of filter paper.
For achieving the above object, the technical solution used in the present invention is as follows:
A filter paper of filter, is made by the raw material of following weight portion: softwood pulp 40-50, secondary stock 30-40, resurrection glass fibre 20-30, PERFORMANCE OF MODIFIED VERMICULITE 2-5, zeolite molecular sieve 1-3, nanometer calcium 2-4, modified coal ash 1-2, water-soluble organic silicon resin emulsion 2-3, water-soluble ptfe emulsion 1-2, APP 0.5-0.8, triacetin 3-4, diglycollic amide 0.5-1, silane coupler KH5600.5-1, sldium lauryl sulfate 0.4-0.8, antioxidant DSTP0.5-1, polymine 4-6.
Described PERFORMANCE OF MODIFIED VERMICULITE is to be made by following methods: first vermiculite is ground to form to 100-150 order powder, add appropriate 6-7mol/L hydrochloric acid solution, with electric mixer, stir 20-30min, standing 10-12h, suction filtration, extremely neutral with distilled water, then the vinyltriethoxysilane and the 1-2% fatty glyceride that add 0.5-1%, add appropriate distilled water to stir 20-30min, suction filtration, dries and pulverizes.
Described modified coal ash is made by following methods: first flyash is soaked to 5-6h in 80-90 ℃ in 6-8mol/L liquor zinci chloridi; suction filtration; at 100-110 ℃, toast 10-12h; under nitrogen protection, in 700-800 ℃, activate 2-3h again; cooling rear 3mol/L salt acid elution 2-3 time of using; with deionized water washing 2-3 time, after oven dry, grind to form 100-150 order powder again.
The preparation method of described environment-friendly high-efficiency filter paper of filter, comprises the following steps:
(1) first PERFORMANCE OF MODIFIED VERMICULITE, zeolite molecular sieve, nanometer calcium, modified coal ash are uniformly mixed, then add silane coupler KH560, fully stir after 10-20min, standing 5-8min is then dried at 100-120 ℃, obtains powder body material;
(2) softwood pulp, secondary stock, resurrection glass fibre are weighed by proportioning respectively, put into pulper, add appropriate sulfuric acid water size degradation to the slurry that solid content is 5-6%, add polymine to continue size degradation 1-2h, make mixed slurry;
(3) powder body material step (1) being made adds in mixed slurry, add water-soluble organic silicon resin emulsion, water-soluble ptfe emulsion, APP, triacetin, diglycollic amide, sldium lauryl sulfate, antioxidant DSTP, be heated to 70-80 ℃, stir, after fluffer is discongested, then defibrination, add appropriate water size mixing to solid content be 2-3%, mix up after slurry on handsheet machine copy paper fast, Substance 60-80g/m
2, page through moulding, squeeze, be dried to mass dryness fraction 94-96%, obtain filter paper of filter of the present invention.
The present invention and prior art have following beneficial effect:
The present invention utilizes secondary stock and flyash as raw material, and environmental protection is saved again, meets recycling economy requirement, adopts flyash and vermiculite modification, has improved absorption property and the filter efficiency of filter paper, thereby has improved the filtering efficiency of cleaner.The advantages such as the filter paper that the present invention prepares has good water permeability, filter area is large, maximum diameter of hole is little, filtering accuracy is high, bursting strength is strong, high temperature resistant, water-tolerant, filter efficiency reaches 99.98%, under normal temperature and worst hot case, there are stable performance indications, there is good heatproof and filter effect.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment
A filter paper of filter, is made by the raw material of following weight portion: 6 parts of 50 parts of softwood pulps, 40 parts of secondary stocks, 30 parts of resurrection glass fibres, 5 parts of PERFORMANCE OF MODIFIED VERMICULITE, 3 parts of zeolite molecular sieves, 4 parts of nanometer calcium, 2 parts of modified coal ash, 3 parts of water-soluble organic silicon resin emulsions, 2 parts of water-soluble ptfe emulsions, 0.8 part of APP, 4 parts of triacetins, 1 part of diglycollic amide, silane coupler KH5601 part, 0.8 part of sldium lauryl sulfate, antioxidant DSTP1 part, polymine.
Described PERFORMANCE OF MODIFIED VERMICULITE is to be made by following methods: first vermiculite is ground to form to 120 order powder, add appropriate 6mol/L hydrochloric acid solution, with electric mixer, stir 30min, standing 12h, suction filtration, extremely neutral with distilled water, then add 1% vinyltriethoxysilane and 2% fatty glyceride, add appropriate distilled water to stir 30min, suction filtration, dries and pulverizes.
Described modified coal ash is made by following methods: first flyash is soaked to 6h in 85 ℃ in 7mol/L liquor zinci chloridi; suction filtration; at 110 ℃, toast 12h; under nitrogen protection, in 750 ℃, activate 2h again; cooling rear 3mol/L salt acid elution 3 times of using; with deionized water washing 3 times, after oven dry, grind to form 100 order powder again.
The preparation method of described environment-friendly high-efficiency filter paper of filter, comprises the following steps:
(1) first PERFORMANCE OF MODIFIED VERMICULITE, zeolite molecular sieve, nanometer calcium, modified coal ash are uniformly mixed, then add silane coupler KH560, fully stir after 20min, standing 8min is then dried at 120 ℃, obtains powder body material;
(2) softwood pulp, secondary stock, resurrection glass fibre are weighed by proportioning respectively, put into pulper, add appropriate sulfuric acid water size degradation to the slurry that solid content is 6%, add polymine to continue size degradation 2h, make mixed slurry;
(3) powder body material step (1) being made adds in mixed slurry, add water-soluble organic silicon resin emulsion, water-soluble ptfe emulsion, APP, triacetin, diglycollic amide, sldium lauryl sulfate, antioxidant DSTP, be heated to 80 ℃, stir, after fluffer is discongested, then defibrination, add appropriate water size mixing to solid content be 3%, mix up after slurry on handsheet machine copy paper fast, Substance 80g/m
2, page through moulding, squeeze, be dried to mass dryness fraction 96%, obtain filter paper of filter of the present invention.
The one-tenth paper air permeability of the filter paper that after testing, the present invention makes is at 90L/m
2s, maximum diameter of hole is 50 μ m, and average pore size is 32 μ m, and wet expansion is 0.6%, and wet bursting strength is 382KPa, and tensile strength is 14.57kNm, and filtering accuracy is 5 μ m, and removal of impurity is 99.98%.
Claims (2)
1. a filter paper of filter, it is characterized in that, by the raw material of following weight portion, made: softwood pulp 40-50, secondary stock 30-40, resurrection glass fibre 20-30, PERFORMANCE OF MODIFIED VERMICULITE 2-5, zeolite molecular sieve 1-3, nanometer calcium 2-4, modified coal ash 1-2, water-soluble organic silicon resin emulsion 2-3, water-soluble ptfe emulsion 1-2, APP 0.5-0.8, triacetin 3-4, diglycollic amide 0.5-1, silane coupler KH560 0.5-1, sldium lauryl sulfate 0.4-0.8, antioxidant DSTP 0.5-1, polymine 4-6; Described PERFORMANCE OF MODIFIED VERMICULITE is to be made by following methods: first vermiculite is ground to form to 100-150 order powder, add appropriate 6-7mol/L hydrochloric acid solution, with electric mixer, stir 20-30min, standing 10-12h, suction filtration, extremely neutral with distilled water, then the vinyltriethoxysilane and the 1-2% fatty glyceride that add 0.5-1%, add appropriate distilled water to stir 20-30min, suction filtration, dries and pulverizes; Described modified coal ash is made by following methods: first flyash is soaked to 5-6h in 80-90 ℃ in 6-8mol/L liquor zinci chloridi; suction filtration; at 100-110 ℃, toast 10-12h; under nitrogen protection, in 700-800 ℃, activate 2-3h again; cooling rear 3mol/L salt acid elution 2-3 time of using; with deionized water washing 2-3 time, after oven dry, grind to form 100-150 order powder again.
2. a preparation method for filter paper of filter as claimed in claim 1, is characterized in that comprising the following steps:
(1) first PERFORMANCE OF MODIFIED VERMICULITE, zeolite molecular sieve, nanometer calcium, modified coal ash are uniformly mixed, then add silane coupler KH560, fully stir after 10-20min, standing 5-8min is then dried at 100-120 ℃, obtains powder body material;
(2) softwood pulp, secondary stock, resurrection glass fibre are weighed by proportioning respectively, put into pulper, add appropriate sulfuric acid water size degradation to the slurry that solid content is 5-6%, add polymine to continue size degradation 1-2h, make mixed slurry;
(3) powder body material step (1) being made adds in mixed slurry, add water-soluble organic silicon resin emulsion, water-soluble ptfe emulsion, APP, triacetin, diglycollic amide, sldium lauryl sulfate, antioxidant DSTP, be heated to 70-80 ℃, stir, after fluffer is discongested, then defibrination, add appropriate water size mixing to solid content be 2-3%, mix up after slurry on handsheet machine copy paper fast, Substance 60-80g/m
2, page through moulding, squeeze, be dried to mass dryness fraction 94-96%, obtain environment-friendly high-efficiency filter paper of filter of the present invention.
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