CN104556710A - Special-shaped glass fiber and preparation method thereof - Google Patents
Special-shaped glass fiber and preparation method thereof Download PDFInfo
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- CN104556710A CN104556710A CN201510056467.2A CN201510056467A CN104556710A CN 104556710 A CN104556710 A CN 104556710A CN 201510056467 A CN201510056467 A CN 201510056467A CN 104556710 A CN104556710 A CN 104556710A
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- glass fiber
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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 special-shaped glass fiber and a preparation method thereof. The special-shaped glass fiber comprises the following components in percentage by mole: 52-58% of SiO2, 16-24% of B2O3, 13-19% of Al2O3, 1-5% of CaO, 4.2-8% of MgO, 0.4-2% of F2, 0-0.5% of Li2O, 0-0.4% of Fe2O3, 0-0.2% of K2O and 0-0.2% of Na2O. Compared with the prior art, the special-shaped glass fiber with a relatively-low dielectric constant and dielectric loss factor is prepared by controlling components in a formula and the contents of all the components, and meanwhile, the special-shaped glass fiber has relatively-high mechanical property, filling rate and special-shaped rate. Experiment results prove that the special-shaped glass fiber provided by the invention has the dielectric constant of smaller than 4.7 and the dielectric loss factor of smaller than 10<-3>.
Description
Technical field
The present invention relates to glass-fibre technology field, more particularly, relate to a kind of special-shaped glass fiber and preparation method thereof.
Background technology
Special-shaped glass fiber, also known as special crosssection glass fibre, is glass fibre that spin through the orifice of certain geometrical shape, that have special cross-section shape.Because the cross section of special-shaped glass fiber can form irregular geometrical shape, compare with traditional glass fibre and there is the premium properties such as better optical effect, larger specific surface area, glass fibre can be solved to light reflectance with specific refractory power is little, the slow-footed problem of optical signal transmission, have huge application potential in the electronics and information industry field of fast development.
At present, special-shaped glass fiber is raw materials for production mainly with common non-alkali glass greatly, founds shaping.Due in moulding process, glass flows stock can by capillary effect, can justify in school voluntarily before cooling curing forms fiber, therefore, the proportioning of preparation technology to glass formula composition and each composition of non-conventional glass fiber has stricter control, could meet the finished product like this and can have certain abnormity when filling ratio.
But special-shaped glass fiber is due to the restriction of moiety, and the specific inductivity of product is higher, can not meet the requirement of densification and high speed information processing.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of special-shaped glass fiber and preparation method thereof, special-shaped glass fiber provided by the invention has lower specific inductivity.
The invention provides a kind of special-shaped glass fiber, with mole percent, comprise following component:
SiO
252％～58％；
B
2O
316％～24％；
Al
2O
313％～19％；
CaO 1％～5％；
MgO 4.2％～8％；
F
20.4％～2％；
Li
2O 0～0.5％；
Fe
2O
30～0.4％；
K
2O 0～0.2％；
Na
2O 0～0.2％。
Preferably, the Li of 0.05% ~ 0.2% is comprised
2o.
Preferably, the abnormity ratio of described special-shaped glass fiber is 3.6 ~ 4.2.
Preferably, the filling ratio of described special-shaped glass fiber is 80% ~ 92%.
Present invention also offers the preparation method of the special-shaped glass fiber described in a kind of technique scheme, it is characterized in that, comprise the following steps:
A) the component mixing comprised by special-shaped glass fiber described in technique scheme, founds, obtains high temp glass liquid;
B) described high temp glass liquid is flowed out through bushing, carry out successively cooling, infiltrate and reeling, obtain special-shaped glass fiber.
Preferably, described step a) specifically comprises the following steps:
The component mixing comprised by special-shaped glass fiber described in technique scheme, carries out heating, clarification and homogenization successively, obtains high temp glass liquid.
Preferably, the temperature of described heating is 1450 DEG C ~ 1500 DEG C.
Preferably, the time of described clarification is 20h ~ 30h.
Preferably, step b) described in cooling temperature be 1250 DEG C ~ 1350 DEG C.
Preferably, step b) described in impregnation process treating compound used be one or more in starch based membrane-forming agent, epoxy film former, polyester membrane-forming agent, Vinyl Acetate Copolymer class membrane-forming agent, esters of acrylic acid membrane-forming agent and polyurethane finishing agent.
The invention provides a kind of special-shaped glass fiber and preparation method thereof, described special-shaped glass fiber, with mole percent, comprises following component: SiO
252% ~ 58%; B
2o
316% ~ 24%; Al
2o
313% ~ 19%; CaO 1% ~ 5%; MgO 4.2% ~ 8%; F
20.4% ~ 2%; Li
2o 0 ~ 0.5%; Fe
2o
30 ~ 0.4%; K
2o 0 ~ 0.2%; Na
2o 0 ~ 0.2%.Compared with prior art, special-shaped glass fiber provided by the invention is by controlling the content of system component and each composition, prepared the special-shaped glass fiber with lower specific inductivity and dielectric loss factor, simultaneously product has higher mechanical property and filling ratio compares with abnormity.Experimental result shows, special-shaped glass fiber specific inductivity provided by the invention is less than 4.7, and dielectric loss factor is less than 10
-3.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The schematic diagram of the cross section of the special-shaped glass fiber that Fig. 1 provides for the embodiment of the present invention 1 ~ 3;
The schematic diagram of the cross section of the special-shaped glass fiber that Fig. 2 provides for the embodiment of the present invention 4 ~ 6;
The special-shaped glass fibre manufacturing technique schema that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is the structural representation of the bushing that ellipse is let slip a remark;
Fig. 5 is the structural representation of two leaf bushings of leting slip a remark.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of special-shaped glass fiber, with mole percent, comprise following component:
SiO
252％～58％；
B
2O
316％～24％；
Al
2O
313％～19％；
CaO 1％～5％；
MgO 4.2％～8％；
F
20.4％～2％；
Li
2O 0～0.5％；
Fe
2O
30～0.4％；
K
2O 0～0.2％；
Na
2O 0～0.2％。
The source of the present invention to all raw materials is not particularly limited, for commercially available.
In the present invention, described SiO
2be one of main oxides forming glass network, there is the effect improving glass machinery performance, chemical stability and thermostability, simultaneously the SiO of high level
2significantly can reduce the dielectric properties of glass fibre; But, SiO
2it is excessive that the too low meeting of content makes glass be hydrolyzed, and density raises, and specific inductivity is excessive, and SiO
2too high levels can increase viscosity and the temperature of fusion of glass, glass fibre is difficult to shaping.Special-shaped glass fiber provided by the invention, with mole percent, comprises the SiO of 52% ~ 58%
2, be preferably 54% ~ 57%, be more preferably 57%.SiO provided by the invention
2content can ensure that the special-shaped glass fiber obtained has excellent performance, is beneficial to again the shaping of special-shaped glass fiber.
In the present invention, described B
2o
3for glass network structure filling body, simultaneously as solubility promoter, reduce glass viscosity; But, B
2o
3too high levels can make the water tolerance of glass fibre sharply be deteriorated.Special-shaped glass fiber provided by the invention, with mole percent, comprises the B of 16% ~ 24%
2o
3, be preferably 18% ~ 23%, be more preferably 23%.B provided by the invention
2o
3content makes the special-shaped glass fiber obtained have lower viscosity, has good water tolerance simultaneously.
In the present invention, described Al
2o
3also be form one of many main oxides of glass network, there is the effect reducing devitrification of glass tendency and improve glass network structure; But, Al
2o
3content is too low can produce phase-splitting, causes the water-disintegrable variation of glass, and Al
2o
3too high levels can make glass viscosity excessive, and glass melting temperature raises, and causes glass fibroblast difficulty, also easily occurs devitrification problem.Special-shaped glass fiber provided by the invention, with mole percent, comprises the Al of 13% ~ 19%
2o
3, be preferably 13% ~ 15.8%, be more preferably 13%.Al provided by the invention
2o
3content makes the special-shaped glass fiber obtained have lower viscosity, is easy to shaping, avoids the appearance of crystallization simultaneously.
In the present invention, described CaO and MgO is glass structure network modifying oxide, has the effect reducing glass high temperature viscosity and improve glass material property, and applicable CaO content and content of MgO play an important role to the stability improving glass network structure.Special-shaped glass fiber provided by the invention, with mole percent, comprises the CaO of 1% ~ 5%, is preferably 1% ~ 3.6%, is more preferably 1.4%; Special-shaped glass fiber provided by the invention, with mole percent, comprises the MgO of 4.2% ~ 8%, is preferably 4.3% ~ 5.1%, is more preferably 4.5%.CaO content provided by the invention and content of MgO make the special-shaped glass fiber obtained have higher structural stability and lower high temperature viscosity.
In the present invention, described F
2glass refraction and dielectric properties can be reduced, can also effectively improve glass fiber wire-drawing mold temperature simultaneously, reduce glass viscosity and density.Special-shaped glass fiber provided by the invention, with mole percent, comprises the F of 0.4% ~ 2%
2, be preferably 0.6% ~ 1%, be more preferably 0.8%.
In the present invention, described Li
2o can reduce glass viscosity and mold temperature, can also reduce liquidus temperature simultaneously, improves wire drawing stability.Special-shaped glass fiber provided by the invention, with mole percent, comprises the Li of 0 ~ 0.5%
2o, is preferably 0.05% ~ 0.2%, is more preferably 0.15%.
In the present invention, described Fe
2o
3contribute to the heat transmission in glass fibre preparation process, reduce production cost.Special-shaped glass fiber provided by the invention, with mole percent, comprises the Fe of 0 ~ 0.4%
2o
3, be preferably 0.05% ~ 0.2%, be more preferably 0.1%.In the present invention, described Fe
2o
3generally do not add separately, brought in adition process by other raw materials.
In the present invention, described K
2o and Na
2o can reduce glass viscosity, improves devitrification of glass tendency.Special-shaped glass fiber provided by the invention, with mole percent, comprises the K of 0 ~ 0.2%
2o, is preferably 0.01% ~ 0.1%, is more preferably 0.05%; Special-shaped glass fiber provided by the invention, with mole percent, comprises the Na of 0 ~ 0.2%
2o, is preferably 0.01% ~ 0.1%, is more preferably 0.05%.In the present invention, described K
2o and Na
2o does not generally add separately, has other raw materials to bring in adition process.
In the present invention, the abnormity of described special-shaped glass fiber, than being preferably 3.6 ~ 4.2, is more preferably 3.8 ~ 4.0.In some preferred embodiments of the present invention, the schematic diagram of the cross section of described special-shaped glass fiber as shown in Figure 1; In other preferred embodiments of the present invention, the schematic diagram of the cross section of described special-shaped glass fiber as described in Figure 2.In the present invention, the filling ratio of described special-shaped glass fiber is preferably 80% ~ 92%, is more preferably 85% ~ 90%.
Present invention also offers the preparation method of the special-shaped glass fiber described in a kind of technique scheme, it is characterized in that, comprise the following steps:
A) the component mixing comprised by special-shaped glass fiber described in technique scheme, founds, obtains high temp glass liquid;
B) described high temp glass liquid is flowed out through bushing, carry out successively cooling, infiltrate and reeling, obtain special-shaped glass fiber.
In the present invention, the component mixing comprised by special-shaped glass fiber described in technique scheme, founds, obtains high temp glass liquid.Identical with described in technique scheme of the component that described special-shaped glass fiber comprises, does not repeat them here.The source of the present invention to all raw materials is not particularly limited, for commercially available.The device of the present invention to described mixing is not particularly limited, as adopted refractory materials unit kiln well known to those skilled in the art.
In the present invention, the process obtaining high temp glass liquid preferably specifically comprises the following steps:
The component mixing comprised by special-shaped glass fiber described in technique scheme, carries out heating, clarification and homogenization successively, obtains high temp glass liquid.
After the component mixing that special-shaped glass fiber described in technique scheme comprises by the present invention, heat.Describedly be heated to be technique means well known to those skilled in the art, object is that mixed component is melted.In the present invention, the temperature of described heating is preferably 1450 DEG C ~ 1500 DEG C, is more preferably 1457 DEG C ~ 1489 DEG C.
After completing described heating, the blending ingredients after heat fused is clarified by the present invention.Described clarification is technique means well known to those skilled in the art, and object is the visible bubble in bubble in the blending ingredients after eliminating heat fused.In the present invention, the time of described clarification is preferably 20h ~ 30h, is more preferably 24h ~ 26h.
After completing described clarification, the blending ingredients after clarification is carried out homogenizing by the present invention, obtains high temp glass liquid.The object of described homogenizing is that elimination chemistry is uneven and heat is uneven, obtains the high temp glass liquid with certain homogeneity.The method of the present invention to described homogenizing is not particularly limited, as adopted action of forced stirring well known to those skilled in the art.
After obtaining high temp glass liquid, described high temp glass liquid flows out through bushing by the present invention, carries out successively cooling, infiltrate and reeling, obtains special-shaped glass fiber.In the present invention, described bushing is provided with multiple leting slip a remark, described in the cross section of leting slip a remark be preferably rectangle, ellipse or two leaf, be more preferably oval or two leaf.
In the present invention, described high temp glass liquid is flowed out through bushing, cools, obtain glass yarn.The method of the present invention to described cooling is not particularly limited, as adopted spray cooling well known to those skilled in the art.In the present invention, the temperature of described cooling is preferably 1250 DEG C ~ 1350 DEG C, is more preferably 1300 DEG C ~ 1340 DEG C.
After completing described cooling, the glass yarn obtained after cooling infiltrates by the present invention.The equipment of the present invention to described infiltration is not particularly limited, as adopted baster well known to those skilled in the art.In the present invention, described impregnation process treating compound used be preferably in starch based membrane-forming agent, epoxy film former, polyester membrane-forming agent, Vinyl Acetate Copolymer class membrane-forming agent, esters of acrylic acid membrane-forming agent and polyurethane finishing agent one or more, be more preferably starch based membrane-forming agent or epoxy film former.
After completing described infiltration, the glass yarn after infiltration reels by the present invention, obtains special-shaped glass fiber.In the present invention, the equipment of described winding is preferably drawing wire machine.
The special-shaped glass fiber obtained is carried out performance test by the present invention, and detailed process is as follows:
Fiberizing temperature adopts BROOKFIELD high temperature viscosity instrument to detect;
Devitrification of glass upper temperature limit adopts Orton Model gradient furnace to measure;
Dielectric properties detect as follows: the glass composition deployment and conjugation material provided by the embodiment of the present invention, mixes in rear loading platinum crucible, be placed in high temperature resistance furnace, 1450 DEG C ~ 1500 DEG C insulations, after abundant fusing clarification, import in mould rapidly, make circular glass sheet.Again by two-sided for sheet glass all polishings, namely obtain test sample.At room temperature, with 1MHz frequency detecting sample permittivity and dielectric loss.
Tensile strength detects as follows: the special-shaped glass fiber embodiment of the present invention obtained is pressed into 25mm × 25mm sheet material, and thickness is 2mm ~ 5mm; Carry out tensile test to presspahn vertical and horizontal, making sample and testing standard are see GB/T20310-2006/IOS9163:2005.
Test result shows, the fiberizing temperature of the special-shaped glass fiber that the embodiment of the present invention provides is no more than 1330 DEG C, devitrification of glass upper temperature limit lower than 1260 DEG C, have higher glass fibre shaping can operating restraint; The more important thing is, special-shaped glass fiber provided by the invention has lower specific inductivity and dielectric loss factor, and specific inductivity is less than 4.7, and dielectric loss factor is less than 10
-3.
In addition, the special-shaped glass fibre tensile strength that the embodiment of the present invention provides is high, and endwise tensile strength is 4116MPa ~ 4998MPa, and transverse tensile strength is 3307MPa ~ 4459MPa.
Below in conjunction with accompanying drawing, the preparation method to special-shaped glass fiber provided by the invention describes in detail, and see the special-shaped glass fibre manufacturing technique schema that Fig. 3, Fig. 3 provide for the embodiment of the present invention, wherein, 1 for founding, and 2 is cooling, and 3 for infiltrating, and 4 is winding.Its concrete steps are: the component mixing that the special-shaped glass the fiber first embodiment of the present invention provided comprises, and found, obtain high temp glass liquid, then flowed out through bushing by high temp glass liquid, carry out successively cooling, infiltrate and reeling, obtain special-shaped glass fiber.In the present invention, as shown in Figure 4 and Figure 5, wherein, Fig. 4 is the structural representation of the bushing that ellipse is let slip a remark to the structural representation of described bushing, and Fig. 5 is the structural representation of two leaf bushings of leting slip a remark.
The component that described special-shaped glass fiber comprises is consistent with technique scheme, does not repeat them here.The source of the present invention to all raw materials is not particularly limited, for commercially available.
In order to further illustrate the present invention, be described in detail below by following examples.Component and the molar content of the special-shaped glass fiber that the embodiment of the present invention 1 ~ 6 provides are as shown in table 1.In following table, the molar content of each embodiment component is degree, when wherein component total content is less than or greater than 100% slightly, can be understood as, remaining measures a small amount of component of being equivalent to impurity or not analyzing, or the acceptable error occurred in the analytical procedure taked causes.
The component of the special-shaped glass fiber that table 1 provides for the embodiment of the present invention 1 ~ 6 and molar content
Embodiment 1
(1) get raw material according to the component of embodiment in table 11 and molar content, mix in refractory materials unit stove, heat under 1468 DEG C of conditions, then clarify 24h, then adopt action of forced stirring to carry out homogenizing, obtain high temp glass liquid.
(2) the high temp glass liquid obtained is flowed out through the bushing shown in Fig. 4, under 1320 DEG C of conditions, carry out spray cooling, obtain glass yarn, then infiltrate on baster with starch based membrane-forming agent, reel finally by drawing wire machine, obtain special-shaped glass fiber.
Embodiment 2
(1) get raw material according to the component of embodiment in table 12 and molar content, mix in refractory materials unit stove, heat under 1457 DEG C of conditions, then clarify 24h, then adopt action of forced stirring to carry out homogenizing, obtain high temp glass liquid.
(2) the high temp glass liquid obtained is flowed out through the bushing shown in Fig. 4, under 1320 DEG C of conditions, carry out spray cooling, obtain glass yarn, then infiltrate on baster with starch based membrane-forming agent, reel finally by drawing wire machine, obtain special-shaped glass fiber.
Embodiment 3
(1) get raw material according to the component of embodiment in table 13 and molar content, mix in refractory materials unit stove, heat under 1465 DEG C of conditions, then clarify 24h, then adopt action of forced stirring to carry out homogenizing, obtain high temp glass liquid.
(2) the high temp glass liquid obtained is flowed out through the bushing shown in Fig. 4, under 1320 DEG C of conditions, carry out spray cooling, obtain glass yarn, then infiltrate on baster with starch based membrane-forming agent, reel finally by drawing wire machine, obtain special-shaped glass fiber.
Embodiment 4
(1) get raw material according to the component of embodiment in table 14 and molar content, mix in refractory materials unit stove, heat under 1460 DEG C of conditions, then clarify 24h, then adopt action of forced stirring to carry out homogenizing, obtain high temp glass liquid.
(2) the high temp glass liquid obtained is flowed out through the bushing shown in Fig. 5, under 1300 DEG C of conditions, carry out spray cooling, obtain glass yarn, then infiltrate on baster with epoxy film former, reel finally by drawing wire machine, obtain special-shaped glass fiber.
Embodiment 5
(1) get raw material according to the component of embodiment in table 15 and molar content, mix in refractory materials unit stove, heat under 1483 DEG C of conditions, then clarify 24h, then adopt action of forced stirring to carry out homogenizing, obtain high temp glass liquid.
(2) the high temp glass liquid obtained is flowed out through the bushing shown in Fig. 4, under 1300 DEG C of conditions, carry out spray cooling, obtain glass yarn, then infiltrate on baster with epoxy film former, reel finally by drawing wire machine, obtain special-shaped glass fiber.
Embodiment 6
(1) get raw material according to the component of embodiment in table 16 and molar content, mix in refractory materials unit stove, heat under 1489 DEG C of conditions, then clarify 24h, then adopt action of forced stirring to carry out homogenizing, obtain high temp glass liquid.
(2) the high temp glass liquid obtained is flowed out through the bushing shown in Fig. 5, under 1320 DEG C of conditions, carry out spray cooling, obtain glass yarn, then infiltrate on baster with epoxy film former, reel finally by drawing wire machine, obtain special-shaped glass fiber.
Special-shaped glass fiber embodiment 1 ~ 6 obtained carries out performance test, and detailed process is as follows:
Fiberizing temperature adopts BROOKFIELD high temperature viscosity instrument to detect;
Devitrification of glass upper temperature limit adopts Orton Model gradient furnace to measure;
Dielectric properties detect as follows: the other deployment and conjugation material of the glass composition provided by the embodiment of the present invention 1 ~ 6, mix in rear loading platinum crucible respectively, be placed in high temperature resistance furnace respectively again, 1450 DEG C ~ 1500 DEG C insulations, after abundant fusing clarification, in the last mould of importing rapidly, make circular glass sheet 1 ~ 6 respectively.Again by two-sided for sheet glass 1 ~ 6 all polishings, namely obtain test sample 1 ~ 6.At room temperature, with 1MHz frequency detecting sample 1 ~ 6 specific inductivity and dielectric loss.
Tensile strength detects as follows: the special-shaped glass fiber embodiment of the present invention 1 ~ 6 obtained is pressed into 25mm × 25mm sheet material 1 ~ 6 respectively, and thickness is 2mm ~ 5mm; Carry out tensile test respectively to presspahn 1 ~ 6 vertical and horizontal, making sample and testing standard are see GB/T20310-2006/IOS9163:2005.
What the special-shaped glass fiber that embodiment 1 ~ 6 provides carried out performance test the results are shown in Table 2.
The result of the special-shaped glass fibre property test that table 2 provides for the embodiment of the present invention 1 ~ 6
T in table 2
log η=3represent that glass viscosity is 10
3temperature during pool, be equivalent to glass fibre shaping time glass metal temperature, i.e. fiberizing temperature.
T in table 2
lrepresent glass metal liquidus temperature, be equivalent to temperature when glass crystallization velocity is 0, i.e. devitrification of glass upper temperature limit.
In table 2, Δ T represents T
log η=3-T
ldifference, be equivalent to the shaping scope of glass fibre.
As shown in Table 2, the fiberizing temperature of the special-shaped glass fiber that the embodiment of the present invention 1 ~ 6 provides is no more than 1330 DEG C, devitrification of glass upper temperature limit lower than 1260 DEG C, have higher glass fibre shaping can operating restraint; The more important thing is, special-shaped glass fiber provided by the invention has lower specific inductivity and dielectric loss factor, and specific inductivity is less than 4.7, and dielectric loss factor is less than 10
-3.
In addition, the special-shaped glass fibre tensile strength that the embodiment of the present invention provides is high, and endwise tensile strength is 4116MPa ~ 4998MPa, and transverse tensile strength is 3307MPa ~ 4459MPa.
The above-mentioned explanation of the disclosed embodiments, enables professional and technical personnel in the field realize or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a special-shaped glass fiber, is characterized in that, with mole percent, comprises following component:
SiO
252％～58％；
B
2O
316％～24％；
Al
2O
313％～19％；
CaO 1％～5％；
MgO 4.2％～8％；
F
20.4％～2％；
Li
2O 0～0.5％；
Fe
2O
30～0.4％；
K
2O 0～0.2％；
Na
2O 0～0.2％。
2. special-shaped glass fiber according to claim 1, is characterized in that, comprises the Li of 0.05% ~ 0.2%
2o.
3. special-shaped glass fiber according to claim 1, is characterized in that, the abnormity ratio of described special-shaped glass fiber is 3.6 ~ 4.2.
4. special-shaped glass fiber according to claim 1, is characterized in that, the filling ratio of described special-shaped glass fiber is 80% ~ 92%.
5. a preparation method for the special-shaped glass fiber described in any one of Claims 1-4, is characterized in that, comprise the following steps:
A) the component mixing comprised by special-shaped glass fiber described in any one of Claims 1-4, founds, obtains high temp glass liquid;
B) described high temp glass liquid is flowed out through bushing, carry out successively cooling, infiltrate and reeling, obtain special-shaped glass fiber.
6. preparation method according to claim 5, is characterized in that, described step a) specifically comprises the following steps:
The component mixing comprised by special-shaped glass fiber described in any one of Claims 1-4, carries out heating, clarification and homogenization successively, obtains high temp glass liquid.
7. preparation method according to claim 6, is characterized in that, the temperature of described heating is 1450 DEG C ~ 1500 DEG C.
8. preparation method according to claim 6, is characterized in that, the time of described clarification is 20h ~ 30h.
9. preparation method according to claim 5, is characterized in that, step b) described in cooling temperature be 1250 DEG C ~ 1350 DEG C.
10. preparation method according to claim 5, it is characterized in that, step b) described in impregnation process treating compound used be one or more in starch based membrane-forming agent, epoxy film former, polyester membrane-forming agent, Vinyl Acetate Copolymer class membrane-forming agent, esters of acrylic acid membrane-forming agent and polyurethane finishing agent.
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| 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 |
| 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 |
| WO2019049526A1 (en) * | 2017-09-08 | 2019-03-14 | 日東紡績株式会社 | Glass composition for glass fiber, glass fiber, and glass fiber-reinforced resin composition using same |
| CN112250311A (en) * | 2020-10-26 | 2021-01-22 | 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 |
| CN114517351A (en) * | 2020-11-18 | 2022-05-20 | 南亚塑胶工业股份有限公司 | Glass fiber cloth and processing method for manufacturing glass fiber cloth by low-dielectric glass fiber yarns |
| WO2023082736A1 (en) | 2021-11-10 | 2023-05-19 | 泰山玻璃纤维有限公司 | Glass fiber composition with low dielectric loss |
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| CN1511120A (en) * | 2001-05-23 | 2004-07-07 | 法国圣戈班韦特罗特斯有限公司 | Reinforcing glass yarns with low dielectric constants |
| 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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| WO2019049526A1 (en) * | 2017-09-08 | 2019-03-14 | 日東紡績株式会社 | Glass composition for glass fiber, glass fiber, and glass fiber-reinforced resin composition using same |
| US11565966B2 (en) | 2017-09-08 | 2023-01-31 | Nitto Boseki Co., Ltd. | Glass composition for glass fiber, 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 |
| CN112250311A (en) * | 2020-10-26 | 2021-01-22 | 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 |
| CN114517351A (en) * | 2020-11-18 | 2022-05-20 | 南亚塑胶工业股份有限公司 | Glass fiber cloth and processing method for manufacturing glass fiber cloth by low-dielectric glass fiber yarns |
| WO2023082736A1 (en) | 2021-11-10 | 2023-05-19 | 泰山玻璃纤维有限公司 | Glass fiber composition with low dielectric loss |
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