CN117902833A - Soluble basalt fiber, preparation method thereof and soluble basalt fiber blanket - Google Patents
Soluble basalt fiber, preparation method thereof and soluble basalt fiber blanket Download PDFInfo
- Publication number
- CN117902833A CN117902833A CN202410078648.4A CN202410078648A CN117902833A CN 117902833 A CN117902833 A CN 117902833A CN 202410078648 A CN202410078648 A CN 202410078648A CN 117902833 A CN117902833 A CN 117902833A
- Authority
- CN
- China
- Prior art keywords
- soluble
- fiber
- basalt fiber
- total
- basalt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920002748 Basalt fiber Polymers 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 229910004742 Na2 O Inorganic materials 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 229910052681 coesite Inorganic materials 0.000 claims description 10
- 229910052906 cristobalite Inorganic materials 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 229910052682 stishovite Inorganic materials 0.000 claims description 10
- 229910052905 tridymite Inorganic materials 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 14
- 229920000742 Cotton Polymers 0.000 description 6
- 241000219146 Gossypium Species 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000009987 spinning Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Inorganic Fibers (AREA)
- Glass Compositions (AREA)
Abstract
The invention provides a soluble basalt fiber, which is prepared from the following raw materials in percentage by mass: 3 to 11 weight percent; the mol ratio of O to Si is 3.4-3.8; k 2O+Na2 O+ total Fe: 4-12%. The invention improves the flexural strength of the fiber (represented by the tensile strength of the blanket) and reduces the diameter of the fiber by regulating the total Fe (FeO+Fe 2O3) content, the dosage proportion of the total Fe (FeO+Fe 2O3) and K 2O+Na2 O and the O/Si ratio. The invention also provides a preparation method of the soluble basalt fiber and a soluble basalt fiber blanket.
Description
Technical Field
The invention belongs to the technical field of inorganic fibers, and particularly relates to a soluble basalt fiber, a preparation method thereof and a soluble basalt fiber blanket.
Background
The soluble fiber is fiber with low biological durability, which is soluble in physiological fluid after entering human body, so that the fiber has short residence time in human body, can be gradually decomposed by human body fluid and is discharged out of the body. The soluble fiber may be further processed as a major or minor component into a variety of articles including boards, mats, papers, carpets/felts, cottons/felts, shaped/formed articles, coating materials, amorphous compositions, and the like.
Existing soluble fibers include soluble ceramic fibers, soluble glass fibers, soluble basalt fibers, and the like.
The existing soluble basalt fiber has high brittleness due to high iron oxide content, so that the fiber prepared by spinning is high in brittleness, and the fiber cannot be prepared into a blanket through a needling process, but a fiber aggregate is obtained by adopting a pendulum curing mode.
The existing soluble basalt fiber needs to be added with organic resin and the like in the preparation process, generates a large amount of waste gas (such as CO and SO 3) in the melting process, causes pollution, and also has the problems of complex process, high energy consumption and the like. And, the fiber aggregate prepared by the existing soluble basalt fiber can be made into a blanket by fixing or sewing with a steel mesh.
Disclosure of Invention
The invention aims to provide a soluble basalt fiber, a preparation method thereof and a soluble basalt fiber blanket, wherein the soluble basalt fiber can be directly prepared into the blanket in a needling mode, organic substances are not required to be added in the preparation process, and the prepared fiber blanket has low heat conductivity coefficient.
The invention provides a soluble basalt fiber which comprises the following components in percentage by mass:
SiO2：40～50wt％；
Al2O3：15～25wt％；
CaO：15～22wt％；
MgO：7～13wt％；
K2O+Na2O：＜4％
Total Fe:3 to 11 weight percent;
the mol ratio of O to Si is 3.4-3.8;
K 2O+Na2 O+ total Fe: 4-12%.
Preferably, the total Fe is the sum of the mass fractions of FeO and Fe 2O3.
Preferably, (Al 2O3+SiO2)/(CaO+MgO) is 1.7 to 2.5.
Preferably, the diameter of the soluble basalt fiber is 3-5 μm.
Preferably, the soluble basalt fiber comprises the following components in percentage by mass:
SiO2：45～49wt％；
Al2O3：17～20wt％；
CaO：16～19wt％；
MgO：8～10wt％；
K2O+Na2O：1～3％
Total Fe: 4-8wt%;
The mol ratio of O to Si is 3.5-3.7;
k 2O+Na2 O+ total Fe: 5-9%;
(Al 2O3+SiO2)/(CaO+MgO) is 1.8 to 2.3.
The invention provides a preparation method of the soluble basalt fiber, which comprises the following steps:
A) Mixing and melting fiber raw materials to obtain a melt;
B) And (3) fiber forming is carried out on the melt to obtain the soluble basalt fiber.
Preferably, the melting temperature is 1500-1800 ℃.
Preferably, the fiber forming is filament throwing fiber forming or blowing fiber forming.
Preferably, the temperature of the spun yarn fiber forming is 1500-1600 ℃; the yarn throwing speed of the yarn throwing and fiber forming is 150-180 m/s.
The invention provides a soluble basalt fiber blanket, which is obtained by needling the soluble basalt fiber.
The invention provides a soluble basalt fiber, which is prepared from the following raw materials in percentage by mass: 3 to 11 weight percent; the mol ratio of O to Si is 3.4-3.8; k 2O+Na2 O+ total Fe: 4-12%. The invention improves the flexural strength of the fiber (represented by the tensile strength of the blanket) and reduces the diameter of the fiber by regulating the total Fe (FeO+Fe 2O3) content, the dosage proportion of the total Fe (FeO+Fe 2O3) and K 2O+Na2 O and the O/Si ratio.
Detailed Description
The invention provides a soluble basalt fiber which is prepared from the following raw materials in parts by mass:
SiO2：40～50wt％；
Al2O3：15～25wt％；
CaO：15～22wt％；
MgO：7～13wt％；
K2O+Na2O：＜4％
Total Fe:3 to 11 weight percent;
the mol ratio of O to Si is 3.4-3.8;
K 2O+Na2 O+ total Fe: 4-12%.
In the present invention, the mass fraction of SiO 2 is preferably 40 to 50wt%, more preferably 45 to 49wt%, such as 40wt%, 41wt%, 42wt%, 43wt%, 44wt%, 45wt%, 46wt%, 47wt%, 48wt%, 49wt%, 50wt%, preferably a range having any of the above values as an upper limit or a lower limit.
In the present invention, the mass fraction of Al 2O3 is preferably 15 to 25wt%, such as 15wt%, 16wt%, 17wt%, 18wt%, 19wt%, 20wt%, 21wt%, 22wt%, 23wt%, 24wt%, 25wt%, preferably a range value having any of the above values as an upper limit or a lower limit.
The mass fraction of CaO is preferably 15 to 22wt%, such as 15wt%, 16wt%, 17wt%, 18wt%, 19wt%, 20wt%, 21wt%, 22wt%, and a range having any of the above values as an upper limit or a lower limit is preferable.
The mass fraction of MgO is preferably 7 to 13wt%, such as 7wt%, 8wt%, 9wt%, 10wt%, 11wt%, 12wt%, 13wt%, and a range having any of the above values as an upper limit or a lower limit is preferable.
In the present invention, the sum of the mass fractions of K 2O+Na2 O, that is, K 2 O and Na 2 O is preferably < 4wt%, more preferably 1 to 3wt%, such as 1wt%, 2wt%, 3wt%, preferably a range value having any of the above values as an upper limit or a lower limit.
In the present invention, the total Fe, that is, the sum of the mass fractions of FeO and Fe 2O3 is preferably 3 to 11wt%, such as 3wt%, 4wt%, 5wt%, 6wt%, 7wt%, 8wt%, 9wt%, 10wt%, 11wt%, preferably a range having any of the above values as an upper limit or a lower limit.
In the present invention, the molar ratio of O to Si is preferably 3.4 to 3.8, more preferably 3.5 to 3.7, such as 3.4, 3.5, 3.6, 3.7, 3.8, preferably a range having any of the above values as an upper limit or a lower limit.
In the present invention, the sum of the mass fractions of K 2O+Na2 O+ total Fe, namely K 2O、Na2 O, feO and Fe 2O3, is preferably 4 to 12wt%, such as 4wt%, 5wt%, 6wt%, 7wt%, 8wt%, 9wt%, 10wt%, 11wt%, 12wt%, preferably a range having any of the above values as an upper limit or a lower limit.
In the present invention, the ratio of the sum of the mass fractions of (Al 2O3+SiO2)/(cao+mgo), i.e., siO 2 and Al 2O3 to the sum of the mass fractions of CaO and MgO is preferably 1.7 to 2.5, such as 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, preferably a range value having any of the above values as an upper limit or a lower limit.
In the present invention, the fiber diameter of the soluble basalt fiber is preferably 3 to 5 μm.
The invention also provides a preparation method of the soluble basalt fiber, which comprises the following steps:
A) Mixing and melting fiber raw materials to obtain a melt;
B) And (3) fiber forming is carried out on the melt to obtain the soluble basalt fiber.
In the present application, the fiber raw material preferably includes one or more of calcium powder, wollastonite powder, magnesium powder, alumina and basalt powder, and the proportion of each raw material may be adjusted according to the composition of the desired fiber, which is not particularly limited in the present application.
In the present invention, the melting temperature is preferably 1500 to 1800 ℃, more preferably 1550 to 1750 ℃, such as 1500 ℃, 1550 ℃, 1600 ℃, 1650 ℃, 1700 ℃, 1750 ℃, 1800 ℃, and preferably a range value having any of the above values as an upper limit or a lower limit.
In the present invention, the method of forming the fibers may be filament spinning and forming or blowing and in particular, filament spinning and forming are used in the embodiments of the present invention, and the filament spinning and forming temperature is preferably 1500 to 1600 ℃, such as 1500 ℃, 1510 ℃, 1520 ℃, 1530 ℃, 1540 ℃, 1550 ℃, 1560 ℃, 1570 ℃, 1580 ℃, 1590 ℃, 1600 ℃, and preferably ranges from any of the above values to the upper limit or the lower limit. The linear velocity of the spun yarn is preferably 150 to 180m/s, such as 150m/s,155m/s,160m/s,165m/s,170m/s,175m/s,180m/s, and a range value having any of the above values as an upper limit or a lower limit is preferable.
The present invention preferably uses the apparatus described in patents ZL201921802736.5 and ZL201920795574.0 for melting and fiberizing.
The invention also provides a soluble basalt fiber blanket, after the yarn throwing and the fiber forming, the fiber aggregate is manufactured, cotton is collected, and cotton blanks formed by the cotton collection continuously enter a needling machine for needling, so that the soluble basalt fiber blanket is obtained.
The invention provides a soluble basalt fiber, which is prepared from the following raw materials in percentage by mass: 3 to 11 weight percent; the mol ratio of O to Si is 3.4-3.8; k 2O+Na2 O+ total Fe: 4-12%. The invention improves the flexural strength of the fiber (represented by the tensile strength of the blanket) and reduces the diameter of the fiber by regulating the total Fe (FeO+Fe 2O3) content, the dosage proportion of the total Fe (FeO+Fe 2O3) and K 2O+Na2 O and the O/Si ratio. The volume weight of the soluble basalt fiber blanket obtained by the invention is 64-140 kg/m 3, the tensile strength is 30-80 Kpa, and the heat conductivity coefficient is 0.039-0.043W/m k (average 70 ℃).
In order to further illustrate the present invention, the following examples are provided to describe the soluble basalt fiber, the preparation method thereof and the soluble basalt fiber blanket in detail, but should not be construed as limiting the scope of the present invention.
Examples
According to the proportioning requirements in tables 1-2, the required raw materials of calcium stone powder, wollastonite powder, magnesium powder, alumina and basalt powder are uniformly mixed, continuously melted in the range of 1600 ℃, and subjected to spinning and fiber forming at the temperature of 1570 ℃ at the speed of 160m/s, and cotton blanks formed by collecting cotton continuously enter a needling machine for needling and forming.
Table 1 composition of the soluble fiber prepared in the examples (wt%)
TABLE 2 composition of soluble fiber prepared in comparative example (wt%)
Table 3 results of Performance test of the products of the examples
Table 4 results of Performance test of the products of the comparative examples
As can be seen from tables 1 to 4, the soluble basalt fiber blankets of examples 1 to 13 of the present invention have significantly improved properties, such as acidity coefficient, tensile strength, solubility and thermal conductivity, as compared with the soluble basalt fiber blankets of comparative examples 1 to 29.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The soluble basalt fiber comprises the following components in percentage by mass:
SiO2：40～50wt％；
Al2O3：15～25wt％；
CaO：15～22wt％；
MgO：7～13wt％；
K2O+Na2O：＜4％
Total Fe:3 to 11 weight percent;
the mol ratio of O to Si is 3.4-3.8;
K 2O+Na2 O+ total Fe: 4-12%.
2. The soluble basalt fiber according to claim 1, wherein the total Fe is a sum of mass fractions of FeO and Fe 2O3.
3. The soluble basalt fiber according to claim 2, wherein (Al 2O3+SiO2)/(cao+mgo) is 1.7 to 2.5.
4. The soluble basalt fiber according to claim 3, wherein the diameter of the soluble basalt fiber is 3 to 5 μm.
5. The soluble basalt fiber according to any one of claims 1 to 4, wherein the soluble basalt fiber comprises the following components in mass fraction:
SiO2：45～49wt％；
Al2O3：17～20wt％；
CaO：16～19wt％；
MgO：8～10wt％；
K2O+Na2O：1～3％
Total Fe: 4-8wt%;
The mol ratio of O to Si is 3.5-3.7;
k 2O+Na2 O+ total Fe: 5-9%;
(Al 2O3+SiO2)/(CaO+MgO) is 1.8 to 2.3.
6. The method for preparing the soluble basalt fiber of claim 1, comprising the steps of:
A) Mixing and melting fiber raw materials to obtain a melt;
B) And (3) fiber forming is carried out on the melt to obtain the soluble basalt fiber.
7. The method according to claim 6, wherein the melting temperature is 1500 to 1800 ℃.
8. The method of claim 7, wherein the fiber forming is filament spun or blown fiber forming.
9. The method according to claim 8, wherein the temperature of the spun yarn fiber is 1500-1600 ℃; the yarn throwing speed of the yarn throwing and fiber forming is 150-180 m/s.
10. A soluble basalt fiber blanket obtained by needling the soluble basalt fiber of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410078648.4A CN117902833A (en) | 2024-01-19 | 2024-01-19 | Soluble basalt fiber, preparation method thereof and soluble basalt fiber blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410078648.4A CN117902833A (en) | 2024-01-19 | 2024-01-19 | Soluble basalt fiber, preparation method thereof and soluble basalt fiber blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117902833A true CN117902833A (en) | 2024-04-19 |
Family
ID=90696382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410078648.4A Pending CN117902833A (en) | 2024-01-19 | 2024-01-19 | Soluble basalt fiber, preparation method thereof and soluble basalt fiber blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117902833A (en) |
-
2024
- 2024-01-19 CN CN202410078648.4A patent/CN117902833A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8338319B2 (en) | Composition for high performance glass fibers and fibers formed therewith | |
| EP2462069B1 (en) | Improved modulus, lithium free glass | |
| US7799713B2 (en) | Composition for high performance glass, high performance glass fibers and articles therefrom | |
| EP1951634B1 (en) | Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby | |
| AU692712B2 (en) | Boron-free glass fibers | |
| US8252707B2 (en) | Composition for high performance glass fibers and fibers formed therewith | |
| JP2005511471A (en) | Fiber and method for producing the same | |
| WO2008112978A1 (en) | Low viscosity e-glass composition enabling the use of platinum and rhodium free bushings | |
| KR20100056455A (en) | Thermally resistant fiber glass | |
| CA2824644A1 (en) | High strength glass composition and fibers | |
| CN103228591A (en) | Glass composition for producing high strength and high modulus fibers | |
| CN113135666A (en) | Low-dielectric glass fiber, preparation method, glass fiber product, composite material and application | |
| JP2012148947A (en) | Biosoluble inorganic fiber | |
| US4014705A (en) | Glass compositions | |
| CN117902833A (en) | Soluble basalt fiber, preparation method thereof and soluble basalt fiber blanket | |
| CN113582536B (en) | Preparation method and preparation system of soluble mineral fiber blanket | |
| CN115536281A (en) | Preparation method of glass liquid for glass wool production | |
| CN116390896A (en) | Glass fiber and composition for glass fiber | |
| CN117888235A (en) | Soluble ceramic fiber and preparation method thereof | |
| CN113402175B (en) | Soluble glass fiber blanket and preparation method thereof | |
| CN113173700B (en) | Production system and production method of chopped strand mat | |
| JPS5857385B2 (en) | Alkali-resistant inorganic fiber reinforced cement products | |
| CA1045641A (en) | Glass fiber compositions | |
| CZ241497A3 (en) | MINERAL FIBERS WITH VALUE Ki>40 AND PROCESS FOR PRODUCING THEREOF | |
| PL195611B1 (en) | Glass fiber with improved biological degradability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |