CN103556544B - A kind of high flame retardant glass fibre air filter paper and preparation method thereof - Google Patents
A kind of high flame retardant glass fibre air filter paper and preparation method thereof Download PDFInfo
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- CN103556544B CN103556544B CN201310556523.XA CN201310556523A CN103556544B CN 103556544 B CN103556544 B CN 103556544B CN 201310556523 A CN201310556523 A CN 201310556523A CN 103556544 B CN103556544 B CN 103556544B
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Abstract
The invention discloses a kind of high flame retardant glass fibre air filter paper, by diameter, described high flame retardant glass fibre air filter paper is that the alkali-free glass fibre of 7 ~ 9 μm is cotton, diameter is that the cotton and bonding sizing material of the alkali-free glass fibre of 0.3-0.4 μm obtains; To be the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm be described diameter that the alkali-free glass fibre cotton mass ratio of 0.3-0.4 μm is 1:3.8-4.2; Described bonding sizing material is acrylic emulsion and halogen-free organophosphorous hydrochlorate flame-retardant mixture.The invention also discloses a kind of method preparing described high flame retardant glass fibre air filter paper, first making beating dispersion raw material obtain slurry, and then to l Water Paper applying glue, then remove the moisture content in l Water Paper, final drying obtains product.The surfacing of glass fibre air filter paper, evenly, fire resistance is good.
Description
Technical field
The invention belongs to air filter paper field, relate to a kind of method of high flame retardant glass fibre air filter paper and this filter paper of manufacture.
Background technology
Glass fibre air filter paper mechanical property, heat resistance and excellent corrosion resistance, be widely used in the fields such as Aeronautics and Astronautics, electronics, machinery, chemical industry.Conventional glass fibre air filter paper all uses macromolecular material as bonding, reinforcing agent, but most of macromolecular material easily burns in atmosphere, when the working environment breaking out of fire of glass fibre air filter paper, simple glass fiber air filter paper not only can not be fire-retardant, can accelerate fire spread on the contrary.After the macromolecular material as bonding, reinforcing agent is ignited, whole glass fibre air filter paper also just loses air filtering function, thus causes even more serious consequence.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of glass fibre air filter paper of excellent fireproof performance, the present invention also provides a kind of method preparing this glass fibre air filter paper.
For achieving the above object, the invention provides following technical scheme: high flame retardant glass fibre air filter paper of the present invention, being that the alkali-free glass fibre of 7 ~ 9 μm is cotton by diameter, diameter is that the cotton and bonding sizing material of the alkali-free glass fibre of 0.3-0.4 μm obtains.
By diameter, to be the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm be glass fibre air filter paper of the present invention that the alkali-free glass fibre cotton of 0.3-0.4 μm is made, the glass fibre cotton of 7 ~ 9 μm can play good skeleton function in filter paper, when glass fibre cotton with 0.3-0.4 μm mixes, the glass fibre cotton of 0.3-0.4 μm can well be overlapped on skeleton, thus is formed mesh-structured.
Further, to be the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm be described diameter that the alkali-free glass fibre cotton mass ratio of 0.3-0.4 μm is 1:3.8-4.2.
In glass fibre air filter paper of the present invention cotton the and diameter of the alkali-free glass fibre of 7 ~ 9 μm be the mass ratio of the alkali-free glass fibre cotton of 0.3-0.4 μm for being 1:3.8-4.2, the glass fibre air filter paper mesh of this proportioning combine tight, space uniform and delicate, good filtration effect, intensity are high.
Further, described bonding sizing material is acrylic emulsion and halogen-free organophosphorous hydrochlorate mixture.
The bonding sizing material of glass fibre air filter paper of the present invention is acrylic emulsion and organic phosphoric acid salt mixture, in organic phosphate, phosphorus decomposes forms the extremely strong metaphosphoric acid of dehydration property, thus the polymer surfaces of burning is carbonized, charring layer has the effect excluded absorbing heat, stop fuel gas; In addition, after the PO free radical that phosphorus and oxygen are formed enters gas phase, a large amount of H or HO free radicals can be caught, can H be formed when H, HO free radical is encountered together
2o, blocks burning further.
The present invention prepares the method for high flame retardant glass fibre air filter paper, comprises the following steps:
(1) raw material prepares: be that to choose diameter be the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm to 1:3.8-4.2 is the alkali-free glass fibre cotton of 0.3-0.4 μm according to mass ratio;
(2) slurrying is disperseed: selected for step (1) raw material are added making beating dispersion in beater, and adjust ph obtains slurry;
(3) wet moulding: dilution step (2) gained slurry also carries out slagging-off process, then obtains l Water Paper by shaping on slurry transferring to former;
(4) sizing material is sprayed: in step (3) gained wet paper surface spraying bonding sizing material;
(5) suction dehydration: suction dehydration is carried out to the l Water Paper containing bonding sizing material that step (5) obtains, makes its moisture percentage < 60%;
(6) dry: at the l Water Paper of 100 ~ 200 DEG C of dry treatment steps (5).
Further, the pH value of described step (2) dispersion slurrying adjust ph disposed slurry is 3.5 ~ 4.0, and mass concentration is 2% ~ 2.5%.
Further, being diluted to mass concentration during the dilution of described step (3) wet moulding is 0.1% ~ 0.3%.
Further, described step (4) spraying sizing material sprays bonding sizing material is acrylic emulsion and halogen-free organophosphorous hydrochlorate mixture.
The present invention prepares in the method for high flame retardant glass fibre air filter paper, and described step (3) wet moulding sizing concentration is low, obtained glass fibre air filter paper surfacing, evenly; Described step (5) suction dehydration, while dehydration, can allow sizing material better be distributed in filter paper; When described step (6) is dry, baking temperature is low, can ensure that organic phosphate does not decompose.
Detailed description of the invention
Below in conjunction with specifically embodiment, technical scheme of the present invention is described in detail.
Embodiment 1:
The present embodiment prepares the method for high flame retardant glass fibre air filter paper, comprises the following steps:
(1) raw material prepares: for 1:4, to choose diameter be respectively the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm is the alkali-free glass fibre cotton of 0.3-0.4 μm in mass ratio;
(2) slurrying is disperseed: selected for step (1) raw material are added in beater dispersion 25 minutes of pulling an oar, then adds clear water and make stock quality concentration be 2.2%, then add sulfuric acid solution and regulate slurry PH=3.8;
(3) wet moulding: dilution step (2) gained slurry to mass concentration is 0.2% and carries out slagging-off process, then obtains l Water Paper by shaping on slurry transferring to slope screen former;
(4) sizing material is sprayed: carry out glue spraying process to step (3) gained l Water Paper, the bonding sizing material sprayed is acrylic emulsion and halogen-free organophosphorous hydrochlorate (OP fire retardant) mixture;
(5) suction dehydration: suction dehydration is carried out to the l Water Paper containing sizing material that step (5) obtains, makes its moisture percentage < 60%;
(6) dry: at the l Water Paper of 150 DEG C of dry treatment steps (5).
Embodiment 2:
The present embodiment prepares the method for high flame retardant glass fibre air filter paper, comprises the following steps:
(1) raw material prepares: for 1:3.8, to choose diameter be respectively the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm is the alkali-free glass fibre cotton of 0.3-0.4 μm in mass ratio;
(2) slurrying is disperseed: selected for step (1) raw material are added in beater dispersion 25 minutes of pulling an oar, then adds clear water and make stock quality concentration be 2.5%, then add sulfuric acid solution and regulate slurry PH=4.0;
(3) wet moulding: dilution step (2) gained slurry to mass concentration is 0.3% and carries out slagging-off process, then obtains l Water Paper by shaping on slurry transferring to slope screen former;
(4) sizing material is sprayed: carry out glue spraying process to step (3) gained l Water Paper, the bonding sizing material sprayed is acrylic emulsion and organic phosphoric acid salt mixture;
(5) suction dehydration: suction dehydration is carried out to the l Water Paper containing sizing material that step (5) obtains, makes its moisture percentage < 60%;
(6) dry: at the l Water Paper of 100 DEG C of dry treatment steps (5).
Embodiment 3:
The present embodiment prepares the method for high flame retardant glass fibre air filter paper, comprises the following steps:
(1) raw material prepares: for 1:4.2, to choose diameter be respectively the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm is the alkali-free glass fibre cotton of 0.3-0.4 μm in mass ratio;
(2) slurrying is disperseed: selected for step (1) raw material are added in beater dispersion 25 minutes of pulling an oar, then adds clear water and make stock quality concentration be 2.0%, then add sulfuric acid solution and regulate slurry PH=3.5;
(3) wet moulding: dilution step (2) gained slurry to mass concentration is 0.1% and carries out slagging-off process, then obtains l Water Paper by shaping on slurry transferring to slope screen former;
(4) sizing material is sprayed: carry out glue spraying process to step (3) gained l Water Paper, the sizing material sprayed is acrylic emulsion and organic phosphoric acid salt mixture;
(5) suction dehydration: suction dehydration is carried out to the l Water Paper containing sizing material that step (5) obtains, makes its moisture percentage < 60%;
(6) dry: at the l Water Paper of 200 DEG C of dry treatment steps (5).
Flame-retardance fiberglass air filter paper embodiment 1 prepared and simple glass fiber air filter paper compare detection, and result is as shown in table 1 below:
Table 1 performance comparison
As can be seen here, the flame-retardance fiberglass air filter paper that the present invention obtains not only does not affect the indices of air filter paper, possesses the fire resistance that simple glass fiber air filter paper does not have on the contrary.Therefore, the flame-retardance fiberglass air filter paper that the present invention obtains is a kind of material of safety and environmental protection.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (5)
1. a high flame retardant glass fibre air filter paper, it is characterized in that: by diameter, described high flame retardant glass fibre air filter paper is that the alkali-free glass fibre of 7 ~ 9 μm is cotton, diameter is that the cotton and bonding sizing material of the alkali-free glass fibre of 0.3-0.4 μm obtains, wherein: to be the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm be diameter that the alkali-free glass fibre cotton mass ratio of 0.3-0.4 μm is 1:3.8-4.2; Described bonding sizing material is acrylic emulsion and halogen-free organophosphorous hydrochlorate mixture.
2. prepare a method for high flame retardant glass fibre air filter paper as claimed in claim 1, it is characterized in that, comprise the following steps:
(1) raw material prepares: be that to choose diameter be the cotton and diameter of the alkali-free glass fibre of 7 ~ 9 μm to 1:3.8-4.2 is the alkali-free glass fibre cotton of 0.3-0.4 μm according to mass ratio;
(2) slurrying is disperseed: selected for step (1) raw material are added making beating dispersion in beater, and adjust ph obtains slurry;
(3) wet moulding: dilution step (2) gained slurry also carries out slagging-off process, then obtains l Water Paper by shaping on slurry transferring to former;
(4) sizing material is sprayed: carry out surface spraying bonding sizing material in step (3) gained l Water Paper;
(5) suction dehydration: suction dehydration is carried out to the l Water Paper containing sizing material that step (5) obtains, makes its moisture percentage < 60%;
(6) dry: at the l Water Paper of 100 ~ 200 DEG C of dry treatment steps (5).
3. according to the method preparing high flame retardant glass fibre air filter paper as claimed in claim 2, it is characterized in that: the pH value of described step (2) dispersion slurrying adjust ph disposed slurry is 3.5 ~ 4.0, and mass concentration is 2% ~ 2.5%.
4. according to the method preparing high flame retardant glass fibre air filter paper as claimed in claim 2, it is characterized in that: being diluted to mass concentration during the dilution of described step (3) wet moulding is 0.1% ~ 0.3%.
5. according to the method preparing high flame retardant glass fibre air filter paper as described in claim 2-4 any one, it is characterized in that: it is acrylic emulsion and halogen-free organophosphorous hydrochlorate mixture that described step (4) spraying sizing material sprays bonding sizing material.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104060497B (en) * | 2014-07-10 | 2016-03-30 | 重庆再升科技股份有限公司 | A kind of high-performance light basis weight air filter paper and preparation method thereof |
| CN104131491B (en) * | 2014-07-25 | 2016-05-11 | 重庆再升科技股份有限公司 | A kind of high strength glass fiber filter paper and manufacture method thereof |
| CN104213470B (en) * | 2014-09-09 | 2016-06-01 | 重庆再升科技股份有限公司 | One can repeated washing glass fibre air filter paper and its preparation method |
| CN104894913A (en) * | 2015-05-11 | 2015-09-09 | 杭州特种纸业有限公司 | Flame-retardant air filter paper, preparation method therefor and application thereof |
| CN104878646A (en) * | 2015-05-11 | 2015-09-02 | 杭州特种纸业有限公司 | High-precision air filter paper as well as preparation method and application thereof |
| CN105821692A (en) * | 2016-05-26 | 2016-08-03 | 昆明纳太科技有限公司 | Glass fiber dispersing method |
| CN106087581A (en) * | 2016-06-20 | 2016-11-09 | 仇颖莹 | A kind of preparation method of flame-proof antibiotic composite air filter paper |
| CN109554954A (en) * | 2019-01-22 | 2019-04-02 | 重庆纤维研究设计院股份有限公司 | High flame retardant glass fiber material and preparation method thereof |
| CN112982011B (en) * | 2021-04-06 | 2023-01-31 | 重庆再升科技股份有限公司 | Preparation method and application of glass fiber cotton filter layer and air filter paper |
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| US4043987A (en) * | 1974-12-10 | 1977-08-23 | Encoat Chemicals Limited | Substituted ammonium polyphosphate composition |
| CN102505554A (en) * | 2011-12-20 | 2012-06-20 | 中材科技股份有限公司 | High-strength glass fiber air filter paper |
| CN102517977A (en) * | 2011-12-21 | 2012-06-27 | 中材科技股份有限公司 | Glass fiber air filter paper with excellent electrical addition property and its preparation method |
| CN102899968A (en) * | 2012-09-20 | 2013-01-30 | 蚌埠凤凰滤清器有限责任公司 | Flame retardant air filter paper for automobile and preparation method thereof |
| CN103276629A (en) * | 2013-05-31 | 2013-09-04 | 重庆再升科技股份有限公司 | Glass fiber air filter paper with antibacterial property and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4043987A (en) * | 1974-12-10 | 1977-08-23 | Encoat Chemicals Limited | Substituted ammonium polyphosphate composition |
| CN102505554A (en) * | 2011-12-20 | 2012-06-20 | 中材科技股份有限公司 | High-strength glass fiber air filter paper |
| CN102517977A (en) * | 2011-12-21 | 2012-06-27 | 中材科技股份有限公司 | Glass fiber air filter paper with excellent electrical addition property and its preparation method |
| CN102899968A (en) * | 2012-09-20 | 2013-01-30 | 蚌埠凤凰滤清器有限责任公司 | Flame retardant air filter paper for automobile and preparation method thereof |
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