CN105908560B - A kind of preparation method of stabilized glass fiber air filter paper - Google Patents
A kind of preparation method of stabilized glass fiber air filter paper Download PDFInfo
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- CN105908560B CN105908560B CN201610244357.3A CN201610244357A CN105908560B CN 105908560 B CN105908560 B CN 105908560B CN 201610244357 A CN201610244357 A CN 201610244357A CN 105908560 B CN105908560 B CN 105908560B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
- D21H15/12—Composite fibres partly organic, partly inorganic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Filtering Materials (AREA)
- Paper (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of preparation method of stabilized glass fiber air filter paper, it is made by the homogeneous mixture of the chopped silk of glass micro-fibers vinylon and cotton blend, organic fiber and alkali-free glass fibre through wet processing, wherein, the mass ratio of the chopped silk of glass micro-fibers vinylon and cotton blend, organic fiber and alkali-free glass fibre is (15 20):(1‑2):(3‑6).K is reduced in stabilized glass fiber air filter paper of the present invention+、Na+、B3+Content, add the radioresistance of glass fibre air paper, it is ensured that gained stabilized glass fiber air filter paper is resistant to close rate no more than 2.5 × 104Gy/h, accumulated dose are not less than 6 × 105~6.5 × 105Gy gamma-rays irradiation；The silicon systems or fluorine system hydrophober that the present invention adds, the performances such as hydrophobicity, resistance to irradiation and the tensile strength of glass fibre air paper are significantly enhanced, the adaptability of core level HEPA filters in wet condition is enhanced, there is wider array of application.
Description
Technical field
The present invention relates to a kind of preparation method of stabilized glass fiber air filter paper, belong to nuclear power field.
Background technology
As international energy supply conditions day is becoming tight, in order to meet the needs of the rapid growth of electric power and environmental protection,
Nuclear power is as a kind of cleaning, high efficient energy sources, it has also become with thermoelectricity, water power and the big supply of electric power pillar in the world three claimed.According to《Core
Electric Long-and Medium-term Development plans (2011-2020)》, to the year two thousand twenty, increasing is built up more nuclear power stations by China, it is contemplated that nuclear power of always going into operation
Capacity is up to 58,000,000 kilowatts, and nuclear power annual electricity generating capacity is up to 260,000,000,000 kilowatt-hours, can account for the 6% of national generating capacity with
On.Core air cleaning system is to provide security context under nominal situation and accident conditions for nuclear facilities staff and equipment
One of nuclear power station accessory system.As the important component of purification of air unit, the function of core level HEPA filters is from sky
Being removed in gas air-flow has radioactive particulate pollutant, and it is the last barrier of nuclear power station guard system, and its quality closes
It is the safety of whole nuclear power station.
Stabilized glass fiber air filter paper is the key components of core level HEPA filter elements, its efficiency, resistance,
Performance change after intensity, hydrophobicity and irradiation determines the performance of core level HEPA filters.U.S.'s ASME AG-1FC pieces are clear and definite
The gamma-rays absorbed dose rate of regulation irradiation test is not more than 2.5 × 104Gy/h, cumulative absorbed dose are not less than 6 × 105-6.5
×105Gy, and vertical transverse strength decay is less than 15% after requiring filter paper irradiation, but existing filter paper is difficult to meet that this will
Ask.
The content of the invention
In order to solve the defects of radiation-resistant property difference existing for air paper in the prior art, the present invention provides a kind of resistance to spoke
According to the preparation method of glass fibre air paper, the filter efficiency of gained glass fibre air paper belongs to high efficiency filter paper
(H13-H14) close rate, is resistant to no more than 2.5 × 104Gy/h, accumulated dose are not less than 6 × 105-6.5×105Gy gamma-rays shines
Penetrate.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows：
A kind of preparation method of stabilized glass fiber air filter paper, by glass micro-fibers vinylon and cotton blend, organic fiber and alkali-free glass
The homogeneous mixture of the chopped silk of glass fiber is made through wet processing, wherein, glass micro-fibers vinylon and cotton blend, organic fiber and alkali-free glass are fine
The mass ratio of the chopped silk of dimension is (15-20):(1-2):(3-6).
Above-mentioned H13-H14 is the grade scale with reference to EN1822, is classified by filter efficiency, represents that efficiency exists
Filter paper between 99.97%-99.995%.
In order to further improve the radioresistance of products obtained therefrom, a diameter of 0.4-0.6 μm of glass micro-fibers vinylon and cotton blend and diameter
For 1-4 μm, wherein, the mass ratio of a diameter of 0.4-0.6 μm of glass micro-fibers vinylon and cotton blend and a diameter of 1-4 μm of glass micro-fibers vinylon and cotton blend
For (1-3):1；The fineness of organic fiber is 0.7-5den, length 6-15mm；A diameter of 3- of the chopped silk of alkali-free glass fibre
15 μm, length 6-15mm.
In order to further improve the performances such as the radioresistance of products obtained therefrom, glass micro-fibers vinylon and cotton blend is composed of the following components：
SiO2：55-61 parts, Al2O3：7-13 parts, CaO：5-6 parts, MgO：0.5-2 parts, BaO：1-4 parts, ZnO：1-3 parts, K2O：0.5-
2.5 parts, Na2O：3-7 parts, Fe2O3：0.1-0.4 parts, B2O3：5-10 parts and TiO2：0.2-0.5 parts, the number are mass parts
Number.
In order to further improve the radioresistance of products obtained therefrom and tensile strength, organic fiber be terylene, acrylic fibers, polypropylene fibre,
Aramid fiber or vinylon.
Wet processing manufacture glass fiber filter paper is prior art, the preparation of the application stabilized glass fiber air filter paper
Method, specifically include following steps connected in order：
1) glass micro-fibers vinylon and cotton blend, organic fiber and alkali-free glass fibre are chopped in the mixture of silk adds water and inorganic acid to stir
Mix and pulp suspension uniformly is made；
2) pulp suspension obtained by step 1) is formed into l Water Paper in uniform thickness after removing the gred, dilute, be molded, be dehydrated successively
Page；
3) equably sprinkling or overflow apply binding agent and hydrophober on the l Water Paper page obtained by step 2), drying, produce
Stabilized glass fiber air filter paper.
Above-mentioned inorganic acid can be the common acids such as hydrochloric acid, sulfuric acid.Binding agent and hydrophober can be added successively, or after mixing
Plus, binding agent and the applying mode of hydrophober and application order have no effect on the performance of product together.
In order to further improve the radioresistance of products obtained therefrom and tensile strength, gained pulp suspension is dense in step 1)
Spend for 0.9-1.2wt%, pH value 2-4.Concentration of the pulp suspension after removing the gred, diluting is less than 0.2wt% in step 2).
Above-mentioned concentration is mass concentration of the fibre blend in suspension.
In order to increase the intensity and hydrophobicity of stabilized glass fiber air filter paper, binding agent is water solubility third in step 3)
Olefin(e) acid class, hydrophober are silicon systems or fluorine system hydrophober, and the mass ratio of binding agent and hydrophober is (5-10):1；The gained glass of resistance to irradiation
The quality of binding agent and hydrophober is the 4-9% of glass fibre air paper quality in glass fiber air filter paper.
In order to ensure the combination property of gained stabilized glass fiber air filter paper, drying temperature is 100- in step 3)
200 DEG C, drying time 10-40min.
The NM technology of the present invention is with reference to prior art.
K is reduced in stabilized glass fiber air filter paper of the present invention+、Na+、B3+Content, so as to add glass fibers
Tie up the radioresistance of air paper, it is ensured that gained stabilized glass fiber air filter paper be resistant to close rate no more than 2.5 ×
104Gy/h, accumulated dose are not less than 6 × 105~6.5 × 105Gy gamma-rays irradiation；The silicon systems or fluorine system hydrophobic that the present invention adds
Agent, effectively facilitated the cooperative effect with other components, significantly enhance glass fibre air paper hydrophobicity, it is resistance to irradiation and
The performances such as tensile strength, the adaptability of core level HEPA filters in wet condition is enhanced, there is wider array of application.
Brief description of the drawings
Fig. 1 is 1000 times of electromicroscopic photograph of the gained stabilized glass fiber air filter paper of embodiment 1.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to the following examples.
The filter efficiency of air paper and filtration resistance use the automatic filtrate of U.S.'s TSI-8130 types in the embodiment of the present invention
Tester is tested；Tensile strength is tested using ZL-100A type paper and Boards tensile testing machine；Hydrophobicity is knitted using the types of YG (B) 812
Thing seepage of water analyzer is tested.
Embodiment 1
Stabilized glass fiber air filter paper wants raw material, 0.7d (fineness) × 6mm using based on two kinds of glass micro-fibers vinylon and cotton blends
Terylene, aramid fiber, the chopped silk of the alkali-free glass fibre of 7 μm of (diameter) × 9mm (length) of (length), add water and hydrochloric acid (matter
Concentration is measured as 10%), stir the pulp suspension for being made that concentration is 0.9wt%, pH value is 2.5 through deflaker, warp
After crossing slag removing system, it is diluted to pulp suspension of the concentration less than 0.2wt% and delivers to flow box, l Water Paper is formed by fourdrinier
Page, equably sprays S560 acroleic acid binding agents (BASF AG's production) on l Water Paper page and TG-5521 fluorine systems hydrophober is (big
King Company produces), form stabilized glass fiber air filter paper through 160 DEG C of drying 30min.
Above two glass micro-fibers vinylon and cotton blend is composed of the following components by mass：SiO2：59%, Al2O3：13%, CaO：
5%, MgO：1%, BaO：4%, ZnO：3%, K2O：2.3%, Na2O：4%, Fe2O3：0.3%, B2O3：8%, TiO2：0.4%.
The mass percent of each component is shown in Table 1 in above-mentioned stabilized glass fiber air filter paper：
The each component mass percent of glass fibre air paper in the embodiment 1 of table 1
(it is no more than 2.5 in close rate through gamma-rays after obtained stabilized glass fiber air filter paper predose and irradiation
×104Gy/h, accumulated dose are not less than 6 × 105~6.5 × 105Gy irradiation) the performance test results be shown in Table 2：
The performance test results of 2 embodiment of table 1
| Performance indications | Predose | After irradiation |
| Filter efficiency (%) | 99.972 | 99.97 |
| Filtration resistance (Pa) | 330 | 322 |
| Tensile strength (kN/m) | 1.4 | 1.21 |
| Hydrophobicity (mmH2O) | 900 | 860 |
Air paper made from embodiment 1, filter efficiency 99.972%, filtration resistance 330Pa, it is irradiated after it is anti-
It is 13.6% to open strength retrogression's degree, and the hydrophobicity dough softening is 4.4%, meets the index request of an ASME AG-1FC pieces, is had preferable
Radioresistance and filter effect.
Embodiment 2
For stabilized glass fiber air filter paper using raw material is wanted based on two kinds of glass micro-fibers vinylon and cotton blends, 2d × 9mm terylene is fine
Dimension, the chopped silk of 5 μ m 6mm alkali-free glass fibre, add water and sulfuric acid (mass concentration 15%), are stirred through deflaker
The pulp suspension that concentration is 1.0wt%, pH value is 2 is made, after slag removing system, is diluted to concentration less than 0.2wt%'s
Pulp suspension delivers to flow box, forms l Water Paper page by fourdrinier, equably overflow applies 26084 acrylic acid on l Water Paper page
Binding agent (Lubrizol Corp.'s production) and IE-6683 silicon systems hydrophober (Dow Corning Corporation's production), through 200 DEG C of drying 40min shapes
Into stabilized glass fiber air filter paper.
Above two glass micro-fibers vinylon and cotton blend is composed of the following components by mass：SiO2：61%, Al2O3：11%, CaO：
6%, MgO：2%, BaO：3%, ZnO：2%, K2O：1.5%, Na2O：4%, Fe2O3：0.2%, B2O3：9%, TiO2：0.3%.
The mass percent of each component is shown in Table 3 in above-mentioned stabilized glass fiber air filter paper：
The each component mass percent of glass fibre air paper in the embodiment 2 of table 3
(it is no more than 2.5 in close rate through gamma-rays after obtained stabilized glass fiber air filter paper predose and irradiation
×104Gy/h, accumulated dose are not less than 6 × 105~6.5 × 105Gy irradiation) the performance test results be shown in Table 4：
The performance test results of 4 embodiment of table 2
| Performance indications | Predose | After irradiation |
| Filter efficiency (%) | 99.993 | 99.992 |
| Filtration resistance (Pa) | 378 | 370 |
| Tensile strength (kN/m) | 1.45 | 1.25 |
| Hydrophobicity (mmH2O) | 880 | 840 |
Air paper made from embodiment 2, filter efficiency 99.993%, filtration resistance 378Pa, it is irradiated after it is anti-
It is 13.8% to open strength retrogression's degree, and the hydrophobicity dough softening is 4.5%, meets the index request of an ASME AG-1FC pieces, is had preferable
Radioresistance and filter effect.
Claims (7)
- A kind of 1. preparation method of stabilized glass fiber air filter paper, it is characterised in that：By glass micro-fibers vinylon and cotton blend, organic fiber It is made with the be chopped homogeneous mixture of silk of alkali-free glass fibre through wet processing, wherein, glass micro-fibers vinylon and cotton blend, organic fiber and nothing The mass ratio of the chopped silk of alkali containing glass fibre is (15-20):(1-2):(3-6)；Glass micro-fibers vinylon and cotton blend is a diameter of 0.4-0.6 μm of glass micro-fibers vinylon and cotton blend and a diameter of 1-4 μm of glass microfiber cotton It is (1-3) to measure ratio:1 mixture；The fineness of organic fiber is 0.7-2den, length 6-9mm；Alkali-free glass fibre is chopped silk A diameter of 3-15 μm, length 6-9mm；Glass micro-fibers vinylon and cotton blend is composed of the following components：SiO2：55-61 parts, Al2O3：7-13 parts, CaO：5-6 parts, MgO：0.5-2 Part, BaO：1-4 parts, ZnO：1-3 parts, K2O：0.5-2.5 parts, Na2O：3-7 parts, Fe2O3：0.1-0.4 parts, B2O3：5-10 parts and TiO2：0.2-0.5 parts, above-mentioned number are mass fraction.
- 2. the preparation method of stabilized glass fiber air filter paper as claimed in claim 1, it is characterised in that：Organic fiber is Terylene, acrylic fibers, polypropylene fibre, aramid fiber or vinylon.
- 3. the preparation method of stabilized glass fiber air filter paper as claimed in claim 1 or 2, it is characterised in that：Including suitable The following steps that sequence connects：1) glass micro-fibers vinylon and cotton blend, organic fiber and alkali-free glass fibre are chopped in the mixture of silk adds water and inorganic acid to stir It is even that pulp suspension is made；2) pulp suspension obtained by step 1) is formed into l Water Paper page in uniform thickness after removing the gred, dilute, be molded, be dehydrated successively；3) equably sprinkling or overflow apply binding agent and hydrophober on the l Water Paper page obtained by step 2), drying, produce resistance to spoke According to glass fibre air paper.
- 4. the preparation method of stabilized glass fiber air filter paper as claimed in claim 3, it is characterised in that：Institute in step 1) The concentration for obtaining pulp suspension is 0.9-1.2wt%, pH value 2-4.
- 5. the preparation method of stabilized glass fiber air filter paper as claimed in claim 3, it is characterised in that：Paper in step 2) Concentration of the mass suspension after removing the gred, diluting is less than 0.2wt%.
- 6. the preparation method of stabilized glass fiber air filter paper as claimed in claim 3, it is characterised in that：Glued in step 3) Knot agent is water-soluble acrylic, and hydrophober is silicon systems or fluorine system hydrophober, and the mass ratio of binding agent and hydrophober is (5-10): 1；The quality of binding agent and hydrophober is the 4- of glass fibre air paper quality in gained stabilized glass fiber air filter paper 9%.
- 7. the preparation method of stabilized glass fiber air filter paper as claimed in claim 3, it is characterised in that：Dried in step 3) Dry temperature is 100-200 DEG C, drying time 10-40min.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237206B (en) * | 2017-07-25 | 2019-07-02 | 沧州洁帝欧滤清器有限公司 | A kind of oleophobic air paper and preparation method thereof |
| CN108505390B (en) * | 2018-03-09 | 2019-11-15 | 中材科技股份有限公司 | Used in nuclear power station glass fibre water filter paper and preparation method thereof |
| CN108842503B (en) * | 2018-06-04 | 2020-04-17 | 南京玻璃纤维研究设计院有限公司 | High-humidity-resistant glass fiber air filter paper and preparation method thereof |
| CN113813698A (en) * | 2021-09-24 | 2021-12-21 | 南京玻璃纤维研究设计院有限公司 | Filter material |
| CN114455844A (en) * | 2021-12-27 | 2022-05-10 | 重庆再升科技股份有限公司 | Glass microfiber cotton and filter paper |
| CN114457624B (en) * | 2021-12-27 | 2023-06-06 | 重庆再升科技股份有限公司 | Microfiber glass wool and glass microfiber filter paper |
| CN114517424A (en) * | 2022-02-18 | 2022-05-20 | 南京玻璃纤维研究设计院有限公司 | Separation strip for high-temperature-resistant air filter and preparation method thereof |
| CN115611513B (en) * | 2022-10-28 | 2024-06-04 | 南京玻璃纤维研究设计院有限公司 | Radiation-resistant glass material and preparation method and application thereof |
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