CN108166298A - A kind of resurrection glass fibre felt and preparation method thereof - Google Patents
A kind of resurrection glass fibre felt and preparation method thereof Download PDFInfo
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- CN108166298A CN108166298A CN201711428700.0A CN201711428700A CN108166298A CN 108166298 A CN108166298 A CN 108166298A CN 201711428700 A CN201711428700 A CN 201711428700A CN 108166298 A CN108166298 A CN 108166298A
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- fibre
- glass fibre
- resurrection
- glass
- resurrection glass
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Abstract
The present invention provides a kind of resurrection glass fibre felts, include the component of following parts by weight：Fibre length is the resurrection glass fibre of 2~4mm：35~45 parts；Fibre length is the resurrection glass fibre of 10~18mm：35~45 parts；Fibre length is the ultra-fine fibre glass of 2~4mm：10~30 parts.Intertexture between the fiber that the present invention passes through different length obtains better mechanical strength, while fine fibre can fill the hole between crude fibre, reduces aperture, so as to reduce convection current heat transfer, reduces thermal conductivity factor.The results show, the thermal conductivity factor of the resurrection glass fibre felt in the present invention is 0.035W/ (mK), tensile strength 76KPa, and doubling is not cracked.The present invention also provides a kind of preparation methods of resurrection glass fibre.
Description
Technical field
The invention belongs to inorganic heat insulation material technical field more particularly to a kind of resurrection glass fibre felt and its preparation sides
Method.
Background technology
With increasing of the country for environmental improvement dynamics, got over the advantages of smoke-free and tasteless when inorganic heat insulation material is heated with it
Favored to get over by market.At present, the manufacturing technology of inorganic binding fiber plate has tended to be ripe, but for steam pipe
Industries, the inorganic binding fiber plates such as road, special-shaped household electrical appliance are difficult to meet its heat preservation demand, need to prepare a kind of flexible
Inorfil product, which both has low thermal conductivity, flue gas will not be generated again when heated.
Patent (CN104529144A) " a kind of preparation method of the resurrection glass fibre felt with low thermal conductivity " is public
A kind of preparation method of resurrection glass fibre felt has been opened, silica and sodium carbonate are mixed to get batch, then put into
Kiln carries out high temperature melting, and vagcor ball is made, and vagcor ball is added in fiber drawing furnace and carries out secondary fusion, so
It is blown afterwards by bushing and resurrection glass fibre raw cotton is made；Resurrection glass fibre raw cotton is subjected to sour processing, is then carried out
It cleans and dries；Beater mashing is placed into, resurrection glass fibre blanket is then obtained using handsheet mechanism；By vagcor
Fiber blanket is dried, and is then placed in atmosphere furnace, the gas of low thermal conductivity is filled with after vacuumizing to 0.1~3MPa, is then carried out
It is sintered to obtain the final product.
Patent (CN204058869U) " a kind of high silica glass fiber punched felt " discloses a kind of resurrection glass fibre
Nomex, combed by fiber, laying into multilayer feltwork form, between the multilayer feltwork interval be punctured with needling shape into hang down
To staple fiber, the vertical staple fiber interconnects with each layer fiber of feltwork, which is characterized in that in the multilayer feltwork
Fiber is the resurrection glass fibre that is chopped, and the fiber in the multilayer feltwork has three-dimensional micropore structure in single fiber, described short
It cuts and contains countless constant orifices in resurrection glass fibre.
Patent (CN104529144A) " a kind of preparation method of the resurrection glass fibre felt with low thermal conductivity " is public
The preparation method of a kind of resurrection glass fibre felt opened can effectively reduce the thermal conductivity factor of resurrection glass fibre felt, but raw
Production. art is complicated, and high temperature sintering is needed to obtain intensity, and high energy consumption, brittleness increases after product calcining, and doubling is easy to crack, and construct not side
Just.A kind of high silica glass fiber punched felt disclosed in patent (CN204058869U) " a kind of high silica glass fiber punched felt "
It is pierced by needle and improves intensity, but needle punctures and is broken internal structure, and generates " heat bridge ", increases the thermal conductivity factor of product, heat preservation
Effect is poor.
Invention content
The purpose of the present invention is to provide a kind of resurrection glass fibre felt and preparation method thereof, the glass fibers in the present invention
Dimension felt has high intensity and low thermal conductivity factor simultaneously.
The present invention provides a kind of resurrection glass fibre felt, includes the component of following parts by weight：
Fibre length is the resurrection glass fibre of 2~4mm：35~45 parts；
Fibre length is the resurrection glass fibre of 10~18mm：35~45 parts；
Fibre length is the ultra-fine fibre glass of 2~4mm：10~30 parts.
Preferably, the ultra-fine fibre glass includes superfine E-glass fibre glass fibre, middle alkali ultra-fine fibre glass and high-alkali super
One or more of thin glass fiber；
A diameter of 1~3 μm of the ultra-fine fibre glass.
Preferably, the fibre length is a diameter of 7~9 μm of resurrection glass fibre of 2~4mm；
The fibre length is a diameter of 7~9 μm of the resurrection glass fibre of 10~18mm.
Preferably, SiO in the resurrection glass fibre that the fibre length is 2~4mm2Content >=96%；
SiO in the resurrection glass fibre that the fibre length is 10~18mm2Content >=96%.
The present invention provides a kind of preparation method of resurrection glass fibre felt, includes the following steps：
A) by the resurrection glass fibre raw material of 35~45 parts by weight and the ultra-fine fibre glass raw material of 10~30 parts by weight
It is beaten, fiber, which is beaten, is as short as 2~4mm；
B the resurrection glass fibre raw material of 35~45 parts by weight) is added in into step A) in obtained cotton pulp, it is beaten,
The fiber of resurrection glass fibre raw material newly added in, which is beaten, is as short as 10~18mm；
C) by step B) obtained cotton pulp copies take molding, vacuum suction filter dehydration and drying successively, obtain vagcor fibre
Tie up felt.
Preferably, the step A) in resurrection glass fibre raw material fibre length be 12~20mm；
The step B) in resurrection glass fibre raw material fibre length be 12~20mm.
Preferably, the fibre length of the ultra-fine fibre glass raw material is 20~40mm.
Preferably, the step A) in be beaten mixing speed be 800~1200rpm；
The step A) in be beaten mixing time be 20~30min.
Preferably, the step B) in be beaten mixing speed be 800~1200rpm；
The step B) in be beaten mixing time be 5~8min.
Preferably, the step C) in dry temperature be 110~130 DEG C.
The present invention provides a kind of resurrection glass fibre felts, include the component of following parts by weight：Fibre length for 2~
The resurrection glass fibre of 4mm：35~45 parts；Fibre length is the resurrection glass fibre of 10~18mm：35~45 parts；Fiber
Length is the ultra-fine fibre glass of 2~4mm：10~30 parts.Intertexture between the fiber that the present invention passes through different length obtains more
Good mechanical strength, while fine fibre can fill the hole between crude fibre, reduce aperture, so as to reduce convection current heat transfer, reduce
Thermal conductivity factor.The results show, the thermal conductivity factor of the resurrection glass fibre felt in the present invention resist for 0.035W/ (mK)
Tensile strength is 76KPa, and doubling is not cracked.
Specific embodiment
The present invention provides a kind of resurrection glass fibre felts, include the component of following parts by weight：
Fibre length is the resurrection glass fibre of 2~4mm：35~45 parts；
Fibre length is the resurrection glass fibre of 10~18mm：35~45 parts；
Fibre length is the ultra-fine fibre glass of 2~4mm：10~30 parts.
In the present invention, in the resurrection glass fibre felt, resurrection glass fibre including 70~90 parts by weight and
10~30 parts of ultra-fine fibre glass, wherein, resurrection glass fibre is divided into two parts, 35~45 weights according to fibre length difference
Measure part, the length of the preferably resurrection glass fibre of 40 parts by weight is 2~4mm, preferably 3mm；35~45 parts by weight, preferably
The length of resurrection glass fibre for 40 parts by weight is 10~18mm, preferably 12~16mm, more preferably 14~15mm；10
The fibre length of~30 parts by weight, the preferably ultra-fine fibre glass of 20~25 parts by weight is 2~4mm, preferably 3mm.
In the present invention, SiO in the resurrection glass fibre2Mass content preferably >=96%, the high silica glass
The fibre diameter of glass fiber is preferably 7~9 μm, more preferably 8 μm；
The ultra-fine fibre glass preferably includes superfine E-glass fibre glass fibre, middle alkali ultra-fine fibre glass and high-alkali ultra-fine glass
One or more of glass fiber；The fibre diameter of the ultra-fine fibre glass is preferably 1~3 μm, more preferably 2 μm.
The present invention does not have the size of resurrection glass fibre felt special limitation, in an embodiment of the present invention, can be with
It is the glass mat that thickness is 10mm, length and width can be cut out according to actual needs.
The present invention also provides a kind of preparation methods of resurrection glass fibre felt, include the following steps：
A) by the resurrection glass fibre raw material of 35~45 parts by weight and the ultra-fine fibre glass raw material of 10~30 parts by weight
It is beaten, fiber, which is beaten, is as short as 2~4mm；
B the resurrection glass fibre raw material of 35~45 parts by weight) is added in into step A) in obtained cotton pulp, it is beaten,
The fiber of resurrection glass fibre raw material newly added in, which is beaten, is as short as 10~18mm；
C) by step B) obtained cotton pulp copies take molding, vacuum suction filter dehydration and drying successively, obtain vagcor fibre
Tie up felt.
Resurrection glass fibre felt in the present invention is using resurrection glass fibre and ultra-fine fibre glass as raw material, through beating
It starches, copy molding and drying is taken to be made.
The present invention first weighs half resurrection glass fibre and whole ultra-fine fibre glasses, adds in water, is beaten, will
Fiber, which is beaten, is as short as 2~4mm, preferably 3mm.
The total amount of the resurrection glass fibre raw material is preferably 70~90 parts by weight, more preferably 75~85 parts by weight,
Most preferably 80 parts by weight；The parts by weight of the half resurrection glass fibre are preferably 35~45, and more preferably 40；It is described
The dosage of ultra-fine fibre glass raw material is preferably 10~30 parts by weight, more preferably 15~25 parts by weight, most preferably 20 weight
Part.
The fibre length of the resurrection glass fibre raw material is preferably 12~20mm, and more preferably 12~15mm, 15~
17mm or 17~20mm；The fibre diameter of the resurrection glass fibre raw material is preferably 7~9 μm, more preferably 8 μm；It is described
The fibre length of ultra-fine fibre glass raw material is preferably 20~40mm, more preferably 20~23mm, 23~26mm, 35~40mm；
The fibre diameter of the ultra-fine fibre glass raw material is preferably 1~3 μm, more preferably 2 μm.
In the present invention, the speed of the stirring is preferably 800~1200rpm, more preferably 900~1100rpm, optimal
It is selected as 1000rpm；The time of the stirring is 20~30min, more preferably 25min.
It completing after being beaten for the first time, the present invention adds in the resurrection glass fibre of remainder in cotton pulp, continues to be beaten,
The resurrection glass fibre newly added in is beaten and is as short as 10~18mm, preferably 10~13mm, 13~15mm or 15~18mm.
The speed of the stirring is preferably 800~1200rpm, more preferably 900~1100rpm, most preferably
1000rpm；The time of the stirring is 5~8min, more preferably 6~7min.
The present invention all adds in resurrection glass fibre in beater in why not being beaten in first time, is to protect
Demonstrate,prove existing staple fiber in final cotton pulp has long fibre again, and fiber is made preferably to interweave, and ensures product strength.
The cotton pulp accomplished fluently is copied taking technique by fourdrinier wire to be molded, and vacuum suction filter is dehydrated, and by hot-air seasoning, obtains high silicon
Oxygen glass mat.
In the present invention, taking technique, vacuum suction filter dehydration and the hot-air seasoning copied is that those skilled in the art commonly use
Technological operation, the temperature of the drying is preferably 110~130 DEG C, more preferably 120 DEG C.
With the high temperature sintering of generally use in the prior art, make organic fiber bond vitrified integrally obtain do intensity not
Together, the present invention, by different-diameter and the weave in of the fiber of length, obtains higher machinery only by method of physical agitation
Intensity and relatively low thermal conductivity factor, compared with prior art, the present invention has the following advantages：
(1) the present invention program operating procedure is simple, can be continuously produced；
(2) resurrection glass fibre felt prepared by the present invention program has low thermal conductivity, and belongs to purely inorganic product, high
Temperature is lower to use smoke-free and tasteless.
(3) the resurrection glass fibre felt good mechanical property in the present invention, tensile strength is high, and doubling is not cracked, construction party
Just.
In order to further illustrate the present invention, with reference to embodiments to a kind of resurrection glass fibre felt provided by the invention
And preparation method thereof be described in detail, but limiting the scope of the present invention cannot be understood as.
Embodiment 1
Weigh 35 parts by weight resurrection glass fibres (7 μm of avarage fiber diameter, fibre length 12~15mm, SiO2Content
96.5%), 30 parts by weight superfine E-glass fibre glass fibres (3 μm of avarage fiber diameter, 20~23mm of fibre length) add in note in advance
In the troughing for entering water, beater, high-speed stirred mixing are opened, mixing speed 800rpm stirs 30min, and fiber, which is beaten, is as short as 2
~4mm；Weigh 35 parts by weight resurrection glass fibres (7 μm of avarage fiber diameter, fibre length 12~15mm, SiO2Content
96.5%) it adds in cotton pulp, continues to stir 8min, mixing speed keeps 800rpm, and the resurrection glass fibre newly added in is beaten short
To 10~13mm；The material mixed is copied taking technique by fourdrinier wire to be molded, and vacuum suction filter is dehydrated, by hot-air seasoning, dry
Dry temperature is 110 DEG C.
Embodiment 2
Weigh 40 parts by weight resurrection glass fibres (8 μm of avarage fiber diameter, fibre length 15~17mm, SiO2Content
96%), 20 parts by weight superfine E-glass fibre glass fibres (2 μm of avarage fiber diameter, 23~26mm of fibre length) addition is previously implanted
In the troughing of water, beater, high-speed stirred mixing are opened, mixing speed 1000rpm stirs 25min, and fiber, which is beaten, is as short as 2
~4mm；Weigh 40 parts by weight resurrection glass fibres (8 μm of avarage fiber diameter, fibre length 15~17mm, SiO2Content
96%) it adds in cotton pulp, continues to stir 6min, mixing speed keeps 1000rpm, and the resurrection glass fibre newly added in, which is beaten, to be as short as
13~15mm；The material mixed is copied taking technique by fourdrinier wire to be molded, and vacuum suction filter is dehydrated, pass through hot-air seasoning, drying
Temperature is 120 DEG C.
Embodiment 3
Weigh 45 parts by weight resurrection glass fibres (9 μm of avarage fiber diameter, fibre length 17~20mm, SiO2Content
97%), 10 parts by weight superfine E-glass fibre glass fibres (1 μm of avarage fiber diameter, 35~40mm of fibre length) addition is previously implanted
In the troughing of water, beater, high-speed stirred mixing are opened, mixing speed 1200rpm stirs 20min, and fiber, which is beaten, is as short as 2
~4mm；Weigh 45 parts by weight resurrection glass fibres (9 μm of avarage fiber diameter, fibre length 17~20mm, SiO2Content
97%) it adds in cotton pulp, continues to stir 5min, mixing speed keeps 1200rpm, and the resurrection glass fibre newly added in, which is beaten, to be as short as
15~18mm；The material mixed is copied taking technique by fourdrinier wire to be molded, and vacuum suction filter is dehydrated, pass through hot-air seasoning, drying
Temperature is 130 DEG C.
Comparative example
Silica and sodium carbonate are pressed 3:Batch is obtained after 1 mass ratio mixing, batch is then put into kiln,
It is melted at a temperature of 1350 DEG C, vagcor ball is made；By vagcor ball obtained add in fiber drawing furnace in into
Then row secondary fusion is blown by bushing and resurrection glass fibre raw cotton is made, nozzle plate temperature is 1200 DEG C, aperture of leting slip a remark
1.0mm；Resurrection glass fibre raw cotton obtained is put into the hydrochloric acid solution of 10wt%, 2h is handled at 60 DEG C, then carried out
It cleans and dries, drying temperature is 120 DEG C, time 20h；The resurrection glass fibre raw cotton after drying is taken to be put into beater to beat
Slurry, then obtains resurrection glass fibre blanket using handsheet mechanism；Blanket drying is put into atmosphere furnace, nitrogen is filled with after vacuumizing
To 0.1MPa, be then sintered to get.Specific sintering process：600 DEG C are first warming up to, after keeping the temperature 1h, then is warming up to 810 DEG C,
1.5h postcoolings are kept the temperature to 550 DEG C, room temperature is cooled to after keeping the temperature 1h.
The resurrection glass fibre felt number consecutively that the embodiment of the present invention 1~3 is prepared is A, B, C, will be compared in fact
The sample number into spectrum for applying example preparation is D.The bulk density of test sample, average 25 DEG C of thermal conductivity factors, tensile strength and doubling respectively
Cracking situation obtains data as shown in the table：
The performance data of product in 1 embodiment of the present invention 1~3 of table and comparative example
Data are shown in table, resurrection glass fibre felt (sample A, B, C) thermal conductivity factor of the present invention and comparative example
Sample is very nearly the same, and insulation effect is excellent；Tensile strength does not crack higher than 60KPa, doubling, easy for construction.Prepared by comparative example
For sample D under the conditions of same detection, tensile strength is slightly poor, and doubling cracking, construction is inconvenient, and continuous production difficulty is larger.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of resurrection glass fibre felt includes the component of following parts by weight：
Fibre length is the resurrection glass fibre of 2~4mm：35~45 parts；
Fibre length is the resurrection glass fibre of 10~18mm：35~45 parts；
Fibre length is the ultra-fine fibre glass of 2~4mm：10~30 parts.
2. resurrection glass fibre felt according to claim 1, which is characterized in that the ultra-fine fibre glass includes alkali-free
One or more of ultra-fine fibre glass, middle alkali ultra-fine fibre glass and high-alkali ultra-fine fibre glass；
A diameter of 1~3 μm of the ultra-fine fibre glass.
3. resurrection glass fibre felt according to claim 1, which is characterized in that the fibre length is the height of 2~4mm
A diameter of 7~9 μm of silica glass；
The fibre length is a diameter of 7~9 μm of the resurrection glass fibre of 10~18mm.
4. resurrection glass fibre felt according to claim 1, which is characterized in that the fibre length is the height of 2~4mm
SiO in silica glass2Content >=96%；
SiO in the resurrection glass fibre that the fibre length is 10~18mm2Content >=96%.
5. a kind of preparation method of resurrection glass fibre felt, includes the following steps：
A) the resurrection glass fibre raw material of 35~45 parts by weight and the ultra-fine fibre glass raw material of 10~30 parts by weight are carried out
Mashing, fiber, which is beaten, is as short as 2~4mm；
B the resurrection glass fibre raw material of 35~45 parts by weight) is added in into step A) in obtained cotton pulp, be beaten, it is new plus
The fiber of resurrection glass fibre raw material entered, which is beaten, is as short as 10~18mm；
C) by step B) obtained cotton pulp copies take molding, vacuum suction filter dehydration and drying successively, obtain resurrection glass fibre felt.
6. preparation method according to claim 5, which is characterized in that the step A) in resurrection glass fibre raw material
Fibre length is 12~20mm；
The step B) in resurrection glass fibre raw material fibre length be 12~20mm.
7. preparation method according to claim 5, which is characterized in that the fibre length of the ultra-fine fibre glass raw material is
20~40mm.
8. preparation method according to claim 5, which is characterized in that the step A) in be beaten mixing speed be 800
~1200rpm；
The step A) in be beaten mixing time be 20~30min.
9. preparation method according to claim 5, which is characterized in that the step B) in be beaten mixing speed be 800
~1200rpm；
The step B) in be beaten mixing time be 5~8min.
10. preparation method according to claim 5, which is characterized in that the step C) in the temperature dried for 110~
130℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428700.0A CN108166298B (en) | 2017-12-26 | 2017-12-26 | A kind of resurrection glass fibre felt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428700.0A CN108166298B (en) | 2017-12-26 | 2017-12-26 | A kind of resurrection glass fibre felt and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108166298A true CN108166298A (en) | 2018-06-15 |
| CN108166298B CN108166298B (en) | 2019-06-14 |
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ID=62520830
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555579A (en) * | 2020-12-24 | 2021-03-26 | 苏州市君悦新材料科技股份有限公司 | Heat insulating material and core material |
| CN114575033A (en) * | 2021-12-21 | 2022-06-03 | 陕西华特新材料股份有限公司 | Glass fiber mixed needled felt and manufacturing method thereof |
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| US20060249267A1 (en) * | 2005-05-09 | 2006-11-09 | Hemant Gupta | Shake mechanism for glass mat production line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555579A (en) * | 2020-12-24 | 2021-03-26 | 苏州市君悦新材料科技股份有限公司 | Heat insulating material and core material |
| CN114575033A (en) * | 2021-12-21 | 2022-06-03 | 陕西华特新材料股份有限公司 | Glass fiber mixed needled felt and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108166298B (en) | 2019-06-14 |
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