CN104556710B - A kind of special-shaped glass fiber and preparation method thereof - Google Patents
A kind of special-shaped glass fiber and preparation method thereof Download PDFInfo
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- CN104556710B CN104556710B CN201510056467.2A CN201510056467A CN104556710B CN 104556710 B CN104556710 B CN 104556710B CN 201510056467 A CN201510056467 A CN 201510056467A CN 104556710 B CN104556710 B CN 104556710B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
Abstract
The invention provides a kind of special-shaped glass fiber and preparation method thereof, the special-shaped glass fiber in mole percent, including following components：SiO252%~58%；B2O316%~24%；Al2O313%~19%；CaO 1%~5%；MgO 4.2%~8%；F20.4%~2%；Li2O 0~0.5%；Fe2O30~0.4%；K2O 0~0.2%；Na2O 0~0.2%.Compared with prior art, the special-shaped glass fiber that the present invention is provided is by controlling the contents of formula components and each composition, the special-shaped glass fiber with relatively low dielectric constant and dielectric loss factor is prepared, while there is product higher mechanical performance and filling rate to compare with abnormity.Test result indicates that, the special-shaped glass fiber dielectric constant that the present invention is provided is less than 4.7, and dielectric loss factor is less than 10‑3。
Description
Technical field
It is to be related to a kind of special-shaped glass fiber and its preparation more specifically the present invention relates to glass-fibre technology field
Method.
Background technology
Special-shaped glass fiber, also known as odd-shaped cross section glass fibre, are that the spinneret orifice through certain geometrical shape is spinned, have
The glass fibre of special cross-section shape.Because the section of special-shaped glass fiber can form irregular geometry, and tradition
Glass fibre compare there is the premium properties such as more preferable optical effect, bigger specific surface area, can solve the problem that glass fibre pair
The reflectivity and refractive index of light are small, the slow-footed problem of optical signal transmission, have huge in fast-developing electronics and information industry field
Big application potential.
At present, special-shaped glass fiber founds shaping mostly using common alkali-free glass as raw materials for production.Due in forming process
In, the meeting of glass stream stock voluntarily can be justified in school by the effect of surface tension before cooling and solidifying forms fiber, therefore, special-shaped
The preparation technology of glass fibre has the strict control of comparison to the proportioning of glass formula composition and each composition, could so meet most
Finished product can have certain abnormity when filling rate.
But, special-shaped glass fiber is due to the limitation of constituent, and the dielectric constant of product is higher, it is impossible to meet high density
Change the requirement with high speed information processing.
The content of the invention
In view of this, it is an object of the invention to provide a kind of special-shaped glass fiber and preparation method thereof, the present invention is provided
Special-shaped glass fiber there is relatively low dielectric constant.
The invention provides a kind of special-shaped glass fiber, in mole percent, including following components：
SiO252%~58%；
B2O316%~24%；
Al2O313%~19%；
CaO 1%~5%；
MgO 4.2%~8%；
F20.4%~2%；
Li2O 0~0.5%；
Fe2O30~0.4%；
K2O 0~0.2%；
Na2O 0~0.2%.
It is preferred that, include 0.05%~0.2% Li2O。
It is preferred that, the abnormity of the special-shaped glass fiber is than being 3.6~4.2.
It is preferred that, the filling rate of the special-shaped glass fiber is 80%~92%.
Present invention also offers a kind of preparation method of the special-shaped glass fiber described in above-mentioned technical proposal, its feature exists
In comprising the following steps：
A) component that special-shaped glass fiber described in above-mentioned technical proposal includes is mixed, is founded, obtain high temp glass
Liquid；
B) high-temperature glass liquid is flowed out through bushing, is cooled down, infiltrated and wound successively, obtain special-shaped glass fine
Dimension.
It is preferred that, the step a) specifically includes following steps：
The component that special-shaped glass fiber described in above-mentioned technical proposal is included is mixed, and is heated successively, clarification and homogenization,
Obtain high-temperature glass liquid.
It is preferred that, the temperature of the heating is 1450 DEG C~1500 DEG C.
It is preferred that, the time of the clarification is 20h~30h.
It is preferred that, the temperature cooled down described in step b) is 1250 DEG C~1350 DEG C.
It is preferred that, the size described in step b) used in impregnation process is starch film forming agent, epoxy film former, polyester
One or more in class film forming agent, polyvinyl acetate class film forming agent, esters of acrylic acid film forming agent and polyurethane finishing agent.
The invention provides a kind of special-shaped glass fiber and preparation method thereof, the special-shaped glass fiber is with mole percent
Meter, including following components：SiO252%~58%；B2O316%~24%；Al2O313%~19%；CaO 1%~5%；
MgO 4.2%~8%；F20.4%~2%；Li2O 0~0.5%；Fe2O30~0.4%；K2O 0~0.2%；Na2O 0~
0.2%.Compared with prior art, the special-shaped glass fiber that provides of the present invention is by controlling the contents of formula components and each composition,
The special-shaped glass fiber with relatively low dielectric constant and dielectric loss factor is prepared, while product has higher machine
Tool performance and filling rate compare with abnormity.Test result indicates that, the special-shaped glass fiber dielectric constant that the present invention is provided is less than 4.7,
Dielectric loss factor is less than 10-3。
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the schematic diagram of the cross section for the special-shaped glass fiber that the embodiment of the present invention 1~3 is provided；
Fig. 2 is the schematic diagram of the cross section for the special-shaped glass fiber that the embodiment of the present invention 4~6 is provided；
Fig. 3 is special-shaped glass fibre manufacturing technique flow chart provided in an embodiment of the present invention；
The structural representation for the bushing that Fig. 4 lets slip a remark for ellipse；
Fig. 5 is the structural representation of the two leaf bushings let slip a remark.
Embodiment
Below in conjunction with the embodiment of the present invention, technical scheme is clearly and completely described, it is clear that institute
The embodiment of description is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair
The scope of bright protection.
The invention provides a kind of special-shaped glass fiber, in mole percent, including following components：
SiO252%~58%；
B2O316%~24%；
Al2O313%~19%；
CaO 1%~5%；
MgO 4.2%~8%；
F20.4%~2%；
Li2O 0~0.5%；
Fe2O30~0.4%；
K2O 0~0.2%；
Na2O 0~0.2%.
The present invention is not particularly limited to the source of all raw materials, is commercially available.
In the present invention, the SiO2It is to form one of main oxides of glass network, with raising glass machinery
The effect of energy, chemical stability and heat endurance, while the SiO of high level2The dielectric properties of glass fibre can be greatly reduced；
But, SiO2Content is too low to make glass hydrolysis excessive, density rise, and dielectric constant is excessive, and SiO2Too high levels can increase glass
The viscosity and fusion temperature of glass, make glass fibre be difficult to be molded.The special-shaped glass fiber that the present invention is provided, with mole percent
Meter, includes 52%~58% SiO2, preferably 54%~57%, more preferably 57%.The SiO that the present invention is provided2Content can
Ensure that obtained special-shaped glass fiber has excellent performance, the shaping of special-shaped glass fiber is beneficial to again.
In the present invention, the B2O3For glass network structure filling body, while being used as cosolvent, glass viscosity is reduced；But
It is, B2O3Too high levels can make the water resistance of glass fibre drastically be deteriorated.The special-shaped glass fiber that the present invention is provided, with moles hundred
Fraction meter, includes 16%~24% B2O3, preferably 18%~23%, more preferably 23%.The B that the present invention is provided2O3Content
Make obtained special-shaped glass fiber that there is relatively low viscosity, while having preferable water resistance.
In the present invention, the Al2O3It is also to form one of many main oxides of glass network, with reduction devitrification of glass
Tendency and the effect for improving glass network structure；But, Al2O3Content is too low to produce split-phase, cause the water-disintegrable variation of glass,
And Al2O3Too high levels can make glass viscosity excessive, glass melting temperature rise, cause glass into fine difficult, be also easy to crystallization occur to ask
Topic.The special-shaped glass fiber that the present invention is provided, in mole percent, includes 13%~19% Al2O3, preferably 13%~
15.8%, more preferably 13%.The Al that the present invention is provided2O3Content makes obtained special-shaped glass fiber have relatively low viscosity, easily
In shaping, while avoiding the appearance of crystallization.
In the present invention, the CaO and MgO is glass structure network modifying oxide, with reduction glass high temperature viscosity
With the effect of improvement frit, suitable CaO content and content of MgO has important work to the stability for improving glass network structure
With.The special-shaped glass fiber that the present invention is provided, in mole percent, includes 1%~5% CaO, preferably 1%~
3.6%, more preferably 1.4%；The special-shaped glass fiber that the present invention is provided, in mole percent, including 4.2%~8%
MgO, preferably 4.3%~5.1%, more preferably 4.5%.The CaO content and content of MgO that the present invention is provided make obtained abnormity
Glass fibre has higher structural stability and relatively low high temperature viscosity.
In the present invention, the F2Glass refraction and dielectric properties can be reduced, while glass can also be effectively improved
Fiber draw forming temperature, reduction glass viscosity and density.The special-shaped glass fiber that the present invention is provided, in mole percent,
Including 0.4%~2% F2, preferably 0.6%~1%, more preferably 0.8%.
In the present invention, the Li2O can reduce glass viscosity and forming temperature, while liquidus curve temperature can also be reduced
Degree, improves wire drawing stability.The special-shaped glass fiber that the present invention is provided, in mole percent, includes 0~0.5% Li2O,
Preferably 0.05%~0.2%, more preferably 0.15%.
In the present invention, the Fe2O3The heat transfer contributed in glass fibre preparation process, reduces production cost.This
The special-shaped glass fiber provided is provided, in mole percent, includes 0~0.4% Fe2O3, preferably 0.05%~0.2%,
More preferably 0.1%.In the present invention, the Fe2O3Do not add individually typically, brought into by other raw materials in adition process.
In the present invention, the K2O and Na2O can reduce glass viscosity, improve devitrification of glass tendency.What the present invention was provided
Special-shaped glass fiber, in mole percent, includes 0~0.2% K2O, preferably 0.01%~0.1%, more preferably
0.05%；The special-shaped glass fiber that the present invention is provided, in mole percent, includes 0~0.2% Na2O, be preferably
0.01%~0.1%, more preferably 0.05%.In the present invention, the K2O and Na2O is not added individually typically, there is other raw materials
Brought into adition process.
In the present invention, the special-shaped ratio preferably 3.6~4.2 of the special-shaped glass fiber, more preferably 3.8~4.0.
In some preferred embodiments of the invention, the schematic diagram of the cross section of the special-shaped glass fiber is as shown in Figure 1；Of the invention another
In some preferred embodiments, the schematic diagram of the cross section of the special-shaped glass fiber is as described in Figure 2.In the present invention, it is described
The filling rate of special-shaped glass fiber is preferably 80%~92%, and more preferably 85%~90%.
Present invention also offers a kind of preparation method of the special-shaped glass fiber described in above-mentioned technical proposal, its feature exists
In comprising the following steps：
A) component that special-shaped glass fiber described in above-mentioned technical proposal includes is mixed, is founded, obtain high temp glass
Liquid；
B) high-temperature glass liquid is flowed out through bushing, is cooled down, infiltrated and wound successively, obtain special-shaped glass fine
Dimension.
In the present invention, the component that special-shaped glass fiber described in above-mentioned technical proposal includes is mixed, is founded, obtained
High-temperature glass liquid.The component that the special-shaped glass fiber includes is identical with described in above-mentioned technical proposal, will not be repeated here.This
Invention is not particularly limited to the source of all raw materials, is commercially available.The present invention does not have special limit to the device of the mixing
System, can such as use refractory material unit kiln well known to those skilled in the art.
In the present invention, the process for obtaining high-temperature glass liquid preferably specifically includes following steps：
The component that special-shaped glass fiber described in above-mentioned technical proposal is included is mixed, and is heated successively, clarification and homogenization,
Obtain high-temperature glass liquid.
After the present invention mixes the component that special-shaped glass fiber described in above-mentioned technical proposal includes, heated.It is described to add
Heat is technological means well known to those skilled in the art, it is therefore an objective to melt mixed component.In the present invention, the heating
Temperature be preferably 1450 DEG C~1500 DEG C, more preferably 1457 DEG C~1489 DEG C.
Complete after the heating, the present invention is clarified the blending ingredients heated after fusing.The clarification is this area
Technological means known to technical staff, it is therefore an objective to eliminate the visible bubble in bubble in the blending ingredients after heating fusing.In the present invention,
The time of the clarification is preferably 20h~30h, more preferably 24h~26h.
Complete after the clarification, the present invention is homogenizing by the blending ingredients after clarification, obtains high-temperature glass liquid.It is described equal
The purpose of change is to eliminate chemical uneven uneven with heat, obtains the high-temperature glass liquid with certain uniformity.The present invention is to institute
The method for stating homogenizing is not particularly limited, and can such as use action of forced stirring well known to those skilled in the art.
Obtain after high-temperature glass liquid, the present invention high-temperature glass liquid is flowed out through bushing, cooled down successively, infiltrate and
Winding, obtains special-shaped glass fiber.In the present invention, the bushing is let slip a remark provided with multiple, and the section let slip a remark is preferably
Rectangle, ellipse or two are leaf, more preferably ellipse or two leaf.
In the present invention, the high-temperature glass liquid is flowed out through bushing, cooled down, obtain glass fiber.The present invention is to institute
The method for stating cooling is not particularly limited, and can such as use misting cooling well known to those skilled in the art.In the present invention, it is described
The temperature of cooling is preferably 1250 DEG C~1350 DEG C, more preferably 1300 DEG C~1340 DEG C.
Complete after the cooling, the present invention is infiltrated the glass fiber obtained after cooling.The present invention is to the infiltration
Equipment is not particularly limited, and can such as use baster well known to those skilled in the art.In the present invention, the impregnation process institute
Size is preferably starch film forming agent, epoxy film former, polyesters film forming agent, polyvinyl acetate class film forming agent, propylene
One or more in esters of gallic acid film forming agent and polyurethane finishing agent, more preferably starch film forming agent or epoxy film former.
Complete after the infiltration, the glass fiber after infiltration is wound by the present invention, obtains special-shaped glass fiber.In this hair
In bright, the equipment of the winding is preferably wire drawing machine.
Obtained special-shaped glass fiber is carried out performance test by the present invention, and detailed process is as follows：
Fiberizing temperature is detected using BROOKFIELD high temperature viscosities instrument；
Devitrification of glass temperature upper limit is determined using Orton Model gradient furnaces；
Dielectric properties are detected as follows：Deployment and conjugation material is constituted by glass provided in an embodiment of the present invention, mixing is equal
Load after even in platinum crucible, be placed in high temperature resistance furnace, in 1450 DEG C~1500 DEG C insulations, fully melt after clarification, rapidly
Import in mould, circular glass piece is made.All polish sheet glass is two-sided again, that is, obtain test sample.At room temperature, with
1MHz frequency detectings sample permittivity and dielectric loss.
Tensile strength is detected as follows：The special-shaped glass fiber that the embodiment of the present invention is obtained be pressed into 25mm ×
25mm sheet materials, thickness is 2mm~5mm；Tensile test is carried out to pressboard vertical and horizontal, make sample and testing standard referring to
GB/T20310-2006/IOS9163：2005.
Test result shows that the fiberizing temperature of special-shaped glass fiber provided in an embodiment of the present invention is no more than 1330
DEG C, devitrification of glass temperature upper limit is less than 1260 DEG C, the operable scope being molded with higher glass fibre；Importantly,
The special-shaped glass fiber that the present invention is provided has relatively low dielectric constant and dielectric loss factor, and dielectric constant is less than 4.7, dielectric
Fissipation factor is less than 10-3。
In addition, special-shaped glass fibre tensile strength provided in an embodiment of the present invention is high, endwise tensile strength be 4116MPa~
4998MPa, transverse tensile strength is 3307MPa~4459MPa.
The preparation method of the special-shaped glass fiber provided below in conjunction with the accompanying drawings the present invention describes in detail, referring to Fig. 3,
Fig. 3 is special-shaped glass fibre manufacturing technique flow chart provided in an embodiment of the present invention, wherein, 1 is founds, and 2 be cooling, and 3 be leaching
Profit, 4 be winding.It is concretely comprised the following steps：The component that special-shaped glass fiber provided in an embodiment of the present invention includes is mixed first, entered
Row is founded, and is obtained high-temperature glass liquid, is then flowed out high-temperature glass liquid through bushing, is cooled down, infiltrated and wound successively, obtained
Special-shaped glass fiber.In the present invention, the structural representation of the bushing as shown in Figure 4 and Figure 5, wherein, Fig. 4 for ellipse leak
The structural representation of the bushing of mouth, Fig. 5 is the structural representation of the two leaf bushings let slip a remark.
The component that the special-shaped glass fiber includes is consistent with above-mentioned technical proposal, will not be repeated here.The present invention is to institute
The source for having raw material is not particularly limited, and is commercially available.
In order to further illustrate the present invention, it is described in detail below by following examples.The embodiment of the present invention 1~6
The component and molar content of the special-shaped glass fiber of offer are as shown in table 1.The molar content of each embodiment component is in following table
Degree, wherein component total content are slightly lower than or during more than 100%, it can be understood as, remaining amount is equivalent to impurity
Or caused by a small amount of component do not analyzed, or the acceptable error occurred in the analysis method taken.
Table 1 is the component and molar content for the special-shaped glass fiber that the embodiment of the present invention 1~6 is provided
Embodiment 1
(1) raw material is taken according to the component and molar content of embodiment 1 in table 1, is mixed in refractory material unit stove,
Heated under the conditions of 1468 DEG C, then clarify 24h, then it is homogenizing using action of forced stirring, obtain high-temperature glass liquid.
(2) obtained high-temperature glass liquid is flowed out through the bushing shown in Fig. 4, misting cooling is carried out under the conditions of 1320 DEG C,
Glass fiber is obtained, is then infiltrated, is wound finally by wire drawing machine on baster with starch film forming agent, obtains different
Shape glass fibre.
Embodiment 2
(1) raw material is taken according to the component and molar content of embodiment 2 in table 1, is mixed in refractory material unit stove,
Heated under the conditions of 1457 DEG C, then clarify 24h, then it is homogenizing using action of forced stirring, obtain high-temperature glass liquid.
(2) obtained high-temperature glass liquid is flowed out through the bushing shown in Fig. 4, misting cooling is carried out under the conditions of 1320 DEG C,
Glass fiber is obtained, is then infiltrated, is wound finally by wire drawing machine on baster with starch film forming agent, obtains different
Shape glass fibre.
Embodiment 3
(1) raw material is taken according to the component and molar content of embodiment 3 in table 1, is mixed in refractory material unit stove,
Heated under the conditions of 1465 DEG C, then clarify 24h, then it is homogenizing using action of forced stirring, obtain high-temperature glass liquid.
(2) obtained high-temperature glass liquid is flowed out through the bushing shown in Fig. 4, misting cooling is carried out under the conditions of 1320 DEG C,
Glass fiber is obtained, is then infiltrated, is wound finally by wire drawing machine on baster with starch film forming agent, obtains different
Shape glass fibre.
Embodiment 4
(1) raw material is taken according to the component and molar content of embodiment 4 in table 1, is mixed in refractory material unit stove,
Heated under the conditions of 1460 DEG C, then clarify 24h, then it is homogenizing using action of forced stirring, obtain high-temperature glass liquid.
(2) obtained high-temperature glass liquid is flowed out through the bushing shown in Fig. 5, misting cooling is carried out under the conditions of 1300 DEG C,
Glass fiber is obtained, is then infiltrated, is wound finally by wire drawing machine on baster with epoxy film former, obtain abnormity
Glass fibre.
Embodiment 5
(1) raw material is taken according to the component and molar content of embodiment 5 in table 1, is mixed in refractory material unit stove,
Heated under the conditions of 1483 DEG C, then clarify 24h, then it is homogenizing using action of forced stirring, obtain high-temperature glass liquid.
(2) obtained high-temperature glass liquid is flowed out through the bushing shown in Fig. 4, misting cooling is carried out under the conditions of 1300 DEG C,
Glass fiber is obtained, is then infiltrated, is wound finally by wire drawing machine on baster with epoxy film former, obtain abnormity
Glass fibre.
Embodiment 6
(1) raw material is taken according to the component and molar content of embodiment 6 in table 1, is mixed in refractory material unit stove,
Heated under the conditions of 1489 DEG C, then clarify 24h, then it is homogenizing using action of forced stirring, obtain high-temperature glass liquid.
(2) obtained high-temperature glass liquid is flowed out through the bushing shown in Fig. 5, misting cooling is carried out under the conditions of 1320 DEG C,
Glass fiber is obtained, is then infiltrated, is wound finally by wire drawing machine on baster with epoxy film former, obtain abnormity
Glass fibre.
The special-shaped glass fiber that embodiment 1~6 is obtained carries out performance test, and detailed process is as follows：
Fiberizing temperature is detected using BROOKFIELD high temperature viscosities instrument；
Devitrification of glass temperature upper limit is determined using Orton Model gradient furnaces；
Dielectric properties are detected as follows：The other deployment and conjugation of glass composition provided by the embodiment of the present invention 1~6
Material, loads in platinum crucible after being well mixed respectively, then is respectively placed in high temperature resistance furnace, is incubated at 1450 DEG C~1500 DEG C,
It is last to import in mould rapidly fully after fusing clarification, circular glass piece 1~6 is respectively prepared.It is again that sheet glass 1~6 is two-sided all
Polishing, that is, obtain test sample 1~6.At room temperature, with the dielectric constant of 1MHz frequency detectings sample 1~6 and dielectric loss.
Tensile strength is detected as follows：The special-shaped glass fiber that the embodiment of the present invention 1~6 is obtained is pressed into respectively
25mm × 25mm sheet materials 1~6, thickness is 2mm~5mm；Tensile test is carried out respectively to the vertical and horizontal of pressboard 1~6, made
Sample and testing standard are referring to GB/T20310-2006/IOS9163：2005.
The special-shaped glass fiber that embodiment 1~6 is provided carries out performance test and the results are shown in Table 2.
Table 2 is the result for the special-shaped glass fibre property test that the embodiment of the present invention 1~6 is provided
T in table 2Log η=3It is 10 to represent glass viscosity3Temperature during pool, the temperature of glass metal when being molded equivalent to glass fibre
Degree, i.e. fiberizing temperature.
T in table 2LGlass liquidus temperature is represented, temperature when equivalent to glass crystallization speed being 0, i.e. devitrification of glass temperature
Spend the upper limit.
Δ T represents T in table 2Log η=3-TLDifference, equivalent to glass fibre be molded scope.
As shown in Table 2, the fiberizing temperature for the special-shaped glass fiber that the embodiment of the present invention 1~6 is provided is no more than 1330
DEG C, devitrification of glass temperature upper limit is less than 1260 DEG C, the operable scope being molded with higher glass fibre；Importantly,
The special-shaped glass fiber that the present invention is provided has relatively low dielectric constant and dielectric loss factor, and dielectric constant is less than 4.7, dielectric
Fissipation factor is less than 10-3。
In addition, special-shaped glass fibre tensile strength provided in an embodiment of the present invention is high, endwise tensile strength be 4116MPa~
4998MPa, transverse tensile strength is 3307MPa~4459MPa.
The described above of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.It is right
A variety of modifications of these embodiments will be apparent for those skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty
Most wide scope.
Claims (7)
1. a kind of special-shaped glass fiber, it is characterised in that in mole percent, composed of the following components：
SiO256%~58%；
B2O318%~20%；
Al2O314%~15%；
CaO 1%~3.6%；
MgO 4.3%~8%；
F20.8%；
Li2O 0.15%；
Fe2O30.1%；
K2O 0.05%；
Na2O 0.05%；
The abnormity of the special-shaped glass fiber is than being 3.9~4.1；
The filling rate of the special-shaped glass fiber is 87%~92%.
2. the preparation method of the special-shaped glass fiber described in a kind of claim 1, it is characterised in that comprise the following steps：
A) component that special-shaped glass fiber described in claim 1 includes is mixed, is founded, obtain high-temperature glass liquid；
B) high-temperature glass liquid is flowed out through bushing, is cooled down, infiltrated and wound successively, obtain special-shaped glass fiber.
3. preparation method according to claim 2, it is characterised in that the step a) specifically includes following steps：
The component that special-shaped glass fiber described in claim 1 is included is mixed, and is heated successively, clarification and homogenization, obtains height
Warm glass metal.
4. preparation method according to claim 3, it is characterised in that the temperature of the heating is 1450 DEG C~1500 DEG C.
5. preparation method according to claim 3, it is characterised in that the time of the clarification is 20h~30h.
6. preparation method according to claim 2, it is characterised in that the temperature cooled down described in step b) is 1250 DEG C~
1350℃。
7. preparation method according to claim 2, it is characterised in that the size described in step b) used in impregnation process
For starch film forming agent, epoxy film former, polyesters film forming agent, polyvinyl acetate class film forming agent, esters of acrylic acid film forming agent and
One or more in polyurethane finishing agent.
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| JP6468409B1 (en) * | 2017-09-08 | 2019-02-13 | 日東紡績株式会社 | Glass composition for glass fiber, glass fiber and glass fiber reinforced resin composition using the same |
| CN110719897B (en) | 2017-09-08 | 2021-01-12 | 日东纺绩株式会社 | Glass composition for glass fiber, and glass fiber-reinforced resin composition using same |
| CN109095790A (en) * | 2018-11-07 | 2018-12-28 | 安徽省绩溪县华宇防火滤料有限公司 | A kind of high-quality glass fiber infiltration agent |
| CN112250311B (en) * | 2020-10-26 | 2023-03-24 | 辽宁新洪源环保材料有限公司 | Low-dielectric glass fiber composition, low-dielectric glass fiber and preparation method thereof |
| TWI784352B (en) * | 2020-11-18 | 2022-11-21 | 南亞塑膠工業股份有限公司 | Processing method of fiberglass cloth |
| CN113880441B (en) | 2021-11-10 | 2022-08-16 | 泰山玻璃纤维有限公司 | Low dielectric loss glass fiber composition |
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| CN103974917A (en) * | 2011-12-06 | 2014-08-06 | 日东纺绩株式会社 | Glass fibers having non-circular cross sections, and fiber-reinforced resin compact using same |
| CN103992039A (en) * | 2014-05-30 | 2014-08-20 | 重庆国际复合材料有限公司 | Glass fiber with low dielectric constant |
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| FR2825084B1 (en) * | 2001-05-23 | 2003-07-18 | Saint Gobain Vetrotex | GLASS YARNS CAPABLE OF REINFORCING ORGANIC AND / OR INORGANIC MATERIALS, PROCESS FOR PRODUCING GLASS YARNS, COMPOSITION USED |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103974917A (en) * | 2011-12-06 | 2014-08-06 | 日东纺绩株式会社 | Glass fibers having non-circular cross sections, and fiber-reinforced resin compact using same |
| CN103992039A (en) * | 2014-05-30 | 2014-08-20 | 重庆国际复合材料有限公司 | Glass fiber with low dielectric constant |
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