CN102877375B - A kind of preparation method of the filter paper for air filter containing modified kaolin - Google Patents
A kind of preparation method of the filter paper for air filter containing modified kaolin Download PDFInfo
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- CN102877375B CN102877375B CN201210360414.6A CN201210360414A CN102877375B CN 102877375 B CN102877375 B CN 102877375B CN 201210360414 A CN201210360414 A CN 201210360414A CN 102877375 B CN102877375 B CN 102877375B
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Abstract
The invention discloses a kind of preparation method of the filter paper for air filter containing modified kaolin, filter paper is obtained by the raw material of following weight parts: modified kaolin 2-4, modified Nano dickite powder 1-2, magnesium hydroxide 0.4-0.6, talcum powder 0.2-0.4, dispersant NNO1-2, bamboo pulp fiber 80-90, polytetrafluoroethylene fibre 25-30, PAE wet strength agent 0.2-0.4, Polyvinylacetate Emulsion Adhesive 1-2, chlorinated paraffin wax 0.5-1, ammonium dihydrogen phosphate (ADP) 0.5-1.The advantages such as gained filter paper of the present invention has good water permeability, filter area is large, maximum diameter of hole is little, filtering accuracy is high, water-tolerant, have stable performance indications, have good resistance to gentle filter effect under normal temperature and worst hot case.
Description
Technical field
The present invention relates to automobile filter field, is exactly a kind of preparation method of the filter paper for air filter containing modified kaolin.
Background technology
In a system, removed by the solia particle in liquid or gas, be called filtration with a kind of medium of porous, the annex adopted for completing such mission is called cleaner.Cleaner includes air filter, oil filter, fuel filter, is referred to as three filters.
As the effective filter medium of one, filter paper is widely used in every field.Different according to the kinds of fibers of composition filter paper, performance, the purposes of filter paper are also different, have the ordinary filter paper for general occasion, under high temperature glass fiber filter paper, also have ultra-clean polypropylene filter paper etc.According to filter paper whether impregnation, two large classes can be divided into, i.e. impregnation filter paper and non-impregnation filter paper.Impregnation filter paper is divided into again solidification filter paper and uncured filter paper.
Along with improving constantly of filtering requirement, any requirement be all more and more difficult to by the fibrous filter paper of single on satisfied use, so arisen at the historic moment by the filter paper of multiple fiber combinations.The fiber that filter paper is commonly used in producing has wood fibre, chemical fibre, glass fibre etc.
Summary of the invention
The preparation method of the filter paper for air filter containing modified kaolin that the object of the present invention is to provide a kind of resistance to elevated temperatures good.
Above-mentioned purpose is realized by following scheme:
A preparation method for filter paper for air filter containing modified kaolin, is characterized in that: comprise the following steps:
(1) kaolin is put into after sodium carbonate and potassium permanganate mixed solution soak 5-6 hour, take out dry, add the silane coupler KH560 being equivalent to kaolin weight 0.5-0.8%, the calcium lignosulfonate being equivalent to kaolin weight 0.3-0.5%, the aluminium oxide that is equivalent to kaolin weight 0.8-1% stir after 15-18 minute and grind under 1000-1100 rev/min, cross 100-200 mesh sieve, obtain modified kaolin for subsequent use;
(2) dickite being put into concentration is after the sodium hydroxide solution of 15-30% soaks 4-5 hour, takes out washing, then in 500-600 DEG C of calcining 4-6 hour, then grinds to form nanometer powder, obtain modified Nano dickite powder for subsequent use
(3) put into pulper size degradation by after 80-90 weight portion bamboo pulp fiber, the mixing of 25-30 weight portion polytetrafluoroethylene fibre, obtain the slurry that solid content is 5-6%, then add 0.2-0.4 weight portion PAE wet strength agent continuation size degradation, obtain mixed slurry;
(4) modified kaolin, modified Nano dickite powder and all the other raw materials are added in step (3) gained mixed slurry by weight, be heated to 70-80 DEG C;
The described filter paper for air filter containing modified kaolin is obtained by the raw material of following weight parts: modified kaolin 2-4, modified Nano dickite powder 1-2, magnesium hydroxide 0.4-0.6, talcum powder 0.2-0.4, dispersant NNO1-2, bamboo pulp fiber 80-90, polytetrafluoroethylene fibre 25-30, PAE wet strength agent 0.2-0.4, Polyvinylacetate Emulsion Adhesive 1-2, chlorinated paraffin wax 0.5-1, ammonium dihydrogen phosphate (ADP) 0.5-1;
(5) after fluffer is discongested, then defibrination, after defibrination, gained slurry is sized mixing through adding water, conveniently paper technology copy paper again to solid content 2-3%, shaping squeezing, is drying to obtain.
The preparation method of described a kind of filter paper for air filter containing modified kaolin, is characterized in that: the solid content of described Polyvinylacetate Emulsion Adhesive is 45-52%.
The preparation method of described a kind of filter paper for air filter containing modified kaolin, is characterized in that: described sodium carbonate and potassium permanganate mixed solution are obtained by mixing by the sodium carbonate liquor of 7-9g/L and the liquor potassic permanganate equal-volume of 0.7-1.0g/L.
Beneficial effect of the present invention is: the modified kaolin that raw material of the present invention adopts and modified Nano dickite powder add the absorption property of filter paper.The advantages such as gained filter paper of the present invention has good water permeability, filter area is large, maximum diameter of hole is little, filtering accuracy is high, water-tolerant, stable performance indications are had under normal temperature and worst hot case, there is good resistance to gentle filter effect, its maximum diameter of hole 50-55 μm, average pore size 30-35 μm, becomes paper air permeability at 80-90L/m
2.S between.
Detailed description of the invention
A preparation method for filter paper for air filter containing modified kaolin, comprises the following steps:
(1) kaolin is put into after sodium carbonate and potassium permanganate mixed solution soak 6 hours, take out dry, add the silane coupler KH560 being equivalent to kaolin weight 0.8%, the calcium lignosulfonate being equivalent to kaolin weight 0.5%, the aluminium oxide that is equivalent to kaolin weight 1% stir after 15 minutes and grind under 1100 revs/min, cross 100 mesh sieves, obtain modified kaolin for subsequent use;
(2) dickite is put into concentration be 20% sodium hydroxide solution soak after 5 hours, take out washing, then in 600 DEG C of calcinings 6 hours, then grind to form nanometer powder, obtain modified Nano dickite powder for subsequent use
(3) put into pulper size degradation by after 90 weight portion bamboo pulp fibers, 25 weight portion polytetrafluoroethylene fibre mixings, obtain the slurry that solid content is 6%, then add 0.3 weight portion PAE wet strength agent continuation size degradation, obtain mixed slurry;
(4) modified kaolin, modified Nano dickite powder and all the other raw materials are added in step (3) gained mixed slurry by weight, be heated to 80 DEG C;
The described filter paper for air filter containing modified kaolin is obtained by the raw material of following weight parts (kg): modified kaolin 4, modified Nano dickite powder 2, magnesium hydroxide 0.6, talcum powder 0.2, dispersant NNO2, bamboo pulp fiber 90, polytetrafluoroethylene fibre 25, PAE wet strength agent 0.3, Polyvinylacetate Emulsion Adhesive 2, chlorinated paraffin wax 0.5, ammonium dihydrogen phosphate (ADP) 0.5;
(5) after fluffer is discongested, then defibrination, after defibrination, gained slurry is sized mixing through adding water, conveniently paper technology copy paper again to solid content 2-3%, shaping squeezing, is drying to obtain.
The solid content of described Polyvinylacetate Emulsion Adhesive is 45%.
Described sodium carbonate and potassium permanganate mixed solution are obtained by mixing by the sodium carbonate liquor of 7g/L and the liquor potassic permanganate equal-volume of 0.7g/L.
The present embodiment maximum diameter of hole 53-55 μm, average pore size 30-35 μm, become paper air permeability at 80-90L/m
2.S between.
Claims (3)
1. a preparation method for the filter paper for air filter containing modified kaolin, is characterized in that: comprise the following steps:
(1) kaolin is put into after sodium carbonate and potassium permanganate mixed solution soak 5-6 hour, take out dry, add the silane coupler KH560 being equivalent to kaolin weight 0.5-0.8%, the calcium lignosulfonate being equivalent to kaolin weight 0.3-0.5%, the aluminium oxide that is equivalent to kaolin weight 0.8-1% stir after 15-18 minute and grind under 1000-1100 rev/min, cross 100-200 mesh sieve, obtain modified kaolin for subsequent use;
(2) dickite being put into concentration is after the sodium hydroxide solution of 15-30% soaks 4-5 hour, takes out washing, then in 500-600 DEG C of calcining 4-6 hour, then grinds to form nanometer powder, obtain modified Nano dickite powder for subsequent use;
(3) put into pulper size degradation by after 80-90 weight portion bamboo pulp fiber, the mixing of 25-30 weight portion polytetrafluoroethylene fibre, obtain the slurry that solid content is 5-6%, then add 0.2-0.4 weight portion PAE wet strength agent continuation size degradation, obtain mixed slurry;
(4) modified kaolin, modified Nano dickite powder and all the other raw materials are added in step (3) gained mixed slurry by weight, be heated to 70-80 DEG C;
The described filter paper for air filter containing modified kaolin is obtained by the raw material of following weight parts: modified kaolin 2-4, modified Nano dickite powder 1-2, magnesium hydroxide 0.4-0.6, talcum powder 0.2-0.4, dispersant NNO1-2, bamboo pulp fiber 80-90, polytetrafluoroethylene fibre 25-30, PAE wet strength agent 0.2-0.4, Polyvinylacetate Emulsion Adhesive 1-2, chlorinated paraffin wax 0.5-1, ammonium dihydrogen phosphate (ADP) 0.5-1;
(5) after fluffer is discongested, then defibrination, after defibrination, gained slurry is sized mixing through adding water, conveniently paper technology copy paper again to solid content 2-3%, shaping squeezing, is drying to obtain.
2. the preparation method of a kind of filter paper for air filter containing modified kaolin according to claim 1, is characterized in that: the solid content of described Polyvinylacetate Emulsion Adhesive is 45-52%.
3. the preparation method of a kind of filter paper for air filter containing modified kaolin according to claim 1, is characterized in that: described sodium carbonate and potassium permanganate mixed solution are obtained by mixing by the sodium carbonate liquor of 7-9g/L and the liquor potassic permanganate equal-volume of 0.7-1.0g/L.
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| CN201210360414.6A CN102877375B (en) | 2012-09-25 | 2012-09-25 | A kind of preparation method of the filter paper for air filter containing modified kaolin |
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| CN201210360414.6A CN102877375B (en) | 2012-09-25 | 2012-09-25 | A kind of preparation method of the filter paper for air filter containing modified kaolin |
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| CN102877375B true CN102877375B (en) | 2015-12-09 |
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Families Citing this family (9)
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| GB2514840A (en) * | 2013-06-07 | 2014-12-10 | Imerys Minerals Ltd | Compositions for bleaching pulps and their use |
| CN103993517A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠首创滤清器有限公司 | High-strength good-toughness water-resistant filter paper for fuel filter and preparation method thereof |
| CN103993518A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠首创滤清器有限公司 | Fireproof flame-retardant fuel filter paper and preparation method thereof |
| CN104005276A (en) * | 2014-04-25 | 2014-08-27 | 蚌埠德美过滤技术有限公司 | Copper oxide-containing composite air filter paper and making method thereof |
| CN105908570A (en) * | 2016-04-12 | 2016-08-31 | 杭州特种纸业有限公司 | Thermosetting diesel oil filter paper |
| CN105967260A (en) * | 2016-05-30 | 2016-09-28 | 安庆丰源化工有限公司 | Fine chemical wastewater treatment agent efficiently removing organic matter |
| CN106867032A (en) * | 2016-12-29 | 2017-06-20 | 高州市兆翔新材料有限公司 | Kaolin composition |
| CN107265850A (en) * | 2017-06-30 | 2017-10-20 | 合肥利裕泰玻璃制品有限公司 | A kind of crystal glass and its preparation technology |
| CN111021135A (en) * | 2019-12-06 | 2020-04-17 | 安徽天扬纺织品有限公司 | Preparation method of high-strength recyclable paper socks |
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| CN1475520A (en) * | 2002-08-15 | 2004-02-18 | 孙建宁 | Sea shell micropowder filler and its use |
| CN102199903A (en) * | 2011-04-13 | 2011-09-28 | 北京联飞翔科技股份有限公司 | Filter paper of energy-saving and environment-friendly filter and making method thereof |
| CN102444054A (en) * | 2011-11-15 | 2012-05-09 | 苏州新业造纸有限公司 | Filter paper for cooling system in wire electrical discharge machining (WEDM) and production method of filter paper |
| CN102500158A (en) * | 2011-11-29 | 2012-06-20 | 无锡格瑞普尔膜科技有限公司 | Preparation method for high-efficiency filter medium with adion exchanging function and membrane filtering function |
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Patent Citations (4)
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| CN1475520A (en) * | 2002-08-15 | 2004-02-18 | 孙建宁 | Sea shell micropowder filler and its use |
| CN102199903A (en) * | 2011-04-13 | 2011-09-28 | 北京联飞翔科技股份有限公司 | Filter paper of energy-saving and environment-friendly filter and making method thereof |
| CN102444054A (en) * | 2011-11-15 | 2012-05-09 | 苏州新业造纸有限公司 | Filter paper for cooling system in wire electrical discharge machining (WEDM) and production method of filter paper |
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