CN103172265B - A kind of high strength glass fiber and preparation method thereof - Google Patents
A kind of high strength glass fiber and preparation method thereof Download PDFInfo
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- CN103172265B CN103172265B CN201310121701.6A CN201310121701A CN103172265B CN 103172265 B CN103172265 B CN 103172265B CN 201310121701 A CN201310121701 A CN 201310121701A CN 103172265 B CN103172265 B CN 103172265B
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Abstract
The present invention relates to a kind of high strength glass fiber.A kind of high strength glass fiber, comprises following component and makes: SiO
253 ~ 57wt%, Al
2o
323 ~ 26wt%, MgO11.5 ~ 14.5wt%, B
2o
32 ~ 4wt%, Fe
2o
30.2 ~ 1.0wt%, CeO
20.2 ~ 1.0wt%, Li
2o0.2 ~ 0.8wt%, TiO
20 ~ 1wt%, ZrO
2, Y
2o
3and other compound, ZrO
2, Y
2o
3and other total amount of compound is less than 1wt%.The advantage of this high strength glass fiber is that good mechanical property and monofilament tensile strength reach 4540 ~ 4720MPa, modulus in tension reaches 85 ~ 87GPa, glass fiber density and E glassy phase are worked as, and monofilament tensile strength improves more than 30% compared with traditional E glass fibre, modulus in tension improves more than 18%.
Description
Technical field
The present invention relates to a kind of high strength glass fiber, as the enhancing base material of high performance composite, the field such as wind electricity blade, defence and military can be widely used in.
Background technology
High strength glass fiber has the features such as intensity is high, modulus is high, temperature tolerance is high, fatigue resistance is good, has the features such as specific tenacity is high, specific modulus is high, fatigue resistance is good, temperature tolerance is high, ageing-resistant, the designability of good corrosion resistance, structure, processability are good be therefore widely used in defence and military, wind energy, automobile, the numerous areas such as shellproof with the matrix material that its strengthens.The high-strength glass fibre of current domestic production has HS2 and HS4 two kinds, HS2 is better relative to processing performance, its deficiency is monofilament tensile strength 4020MPa, modulus in tension 82.9GPa, performance with external high-strength compared with poor, and although HS4 monofilament tensile strength 4600MPa, modulus in tension 86.4GPa are suitable with external high-strength glass fibre, its deficiency is that recrystallization temperature is higher, and processing performance is poor.And the product price that the throughput of HS2 and HS4 high strength glass fiber is low, production cost causes is high, be difficult to meet the Application Areas high to cost requirement such as wind energy, automobile.
Summary of the invention
An object of the present invention is the deficiency solving the existence of existing high strength glass fiber, it is good that open one has good mechanical properties and monofilament tensile strength and modulus in tension, can be used as the high strength glass fiber of the enhancing base material of high performance composite; Another object of the present invention is open a kind of preparation method preparing above-mentioned high strength glass fiber.
Technical scheme of the present invention is as follows:
A kind of high strength glass fiber, comprises following component and makes: SiO
253 ~ 57wt%, Al
2o
323 ~ 26wt%, MgO11.5 ~ 14.5wt%, B
2o
32 ~ 4wt%, Fe
2o
30.2 ~ 1.0wt%, CeO
20.2 ~ 1.0wt%, Li
2o0.2 ~ 0.8wt%, TiO
20 ~ 1wt%, ZrO
2, Y
2o
3and other compound, ZrO
2, Y
2o
3and other total amount of compound is less than 1wt%.
As preferably, comprise following component and make: SiO
253.5 ~ 56wt%, Al
2o
323.5 ~ 25.5wt%, MgO12 ~ 14wt%, B
2o
32.5 ~ 3.5wt%, Fe
2o
30.5 ~ 1.0wt%, CeO
20.5 ~ 1.0wt%, Li
2o0.4 ~ 0.6wt%, TiO
20.2 ~ 0.6wt%, ZrO
2, Y
2o
3and other compound, ZrO
2, Y
2o
3and other total amount of compound is less than 1wt%.
A preparation method for high strength glass fiber, glass is made in the melting under 1500 DEG C ~ 1550 DEG C temperature condition of above-mentioned each component, and melting again at 1450 ~ 1500 DEG C, melten glass is drawn into fiber under 1320 ~ 1330 DEG C of temperature condition.
As preferably, by each component under 1500 DEG C ~ 1550 DEG C temperature condition, melting while stirring, found and make glass in 12 hours, melting more than 4 hours again at 1450 ~ 1500 DEG C, after single hole bushing temperature is down to 1320 ~ 1330 DEG C, starts wire drawing, be drawn into the continuous fibre that diameter is 8 ~ 9 μm.
Have employed the high strength glass fiber of technique scheme, SiO
2be glass network formers, its content directly affects strength of glass, modulus, recrystallization temperature, high temperature viscosity etc., along with SiO
2the increase of content, the raising of glass network structural integrity, fibre strength improves, high temperature viscosity improves, recrystallization temperature declines, but Young's modulus reduces, and glass melting temperature and wire-drawing temperature raising cause processing performance to decline; Otherwise the intensity of fiber reduces.SiO in glass fibre of the present invention
2content optimum value is 54 ~ 56wt%; Al
2o
3be glass network formers, its content directly affects strength of glass, modulus, recrystallization temperature, processing performance etc., along with Al
2o
3the increase of content, fibre strength raising, Young's modulus raising, recrystallization temperature raising, glass melting temperature, wire-drawing temperature raising cause processing performance to decline; Otherwise the strength and modulus of fiber reduces, be difficult to obtain high strength glass fiber.Al in glass fibre of the present invention
2o
3content optimum value is 24 ~ 25.5wt%.MgO is the outer agent of glass network, and appropriate MgO has the effect reducing devitrification of glass temperature, improve processing performance and intensity, and too high levels improves recrystallization temperature on the contrary, reduces fibre strength; Too low being difficult to plays due effect.Content of MgO optimum value in glass of the present invention is 12 ~ 14wt%.B
2o
3mainly as fusing assistant in this glass fibre, its effect reduces recrystallization temperature, reduces high temperature viscosity, reduces recrystallization temperature, improves glass smelting and fiberizing performance.When content is too low, the DeGrain played; When content is too high, fall low-fiber strength and modulus, be difficult to obtain high strength glass fiber.B in glass of the present invention
2o
3content optimum value is 2.5 ~ 3.5wt%.Fe
2o
3, CeO
2, Li
2o, TiO
2deng metal oxide mainly play flux, clarify, reduce high-temperature viscosity, improve found and fiber-forming process performance.In glass fibre of the present invention, the optimum value of these components is Fe
2o
30.5 ~ 1.0wt%, CeO
20.5 ~ 1.0wt%, Li
2o0.4 ~ 0.6wt%, TiO
20.2 ~ 0.6wt%.Containing a small amount of ZrO in glass fibre
2, Y
2o
3deng other compound, its total amount is less than 1wt%, effectively can improve the Young's modulus of fiber, improves temperature tolerance and the chemical stability of fiber.
Glass of the present invention can under 1500 ~ 1550 DEG C of temperature condition, and the pre-assigned glass batch of electricity consumption heating and melting obtains high strength glass.Then glass melting again at 1450 ~ 1500 DEG C, by platinum bushing plate under 1320 ~ 1330 DEG C of temperature condition, melten glass lets slip a remark that to be drawn into diameter be 8 ~ 9 μm of continuous fibres.The fiber drawn can need to make the various glass fiber products such as glasscloth, yarn, band according to user.
In sum, the advantage of this high strength glass fiber is that good mechanical property and monofilament tensile strength reach 4540 ~ 4720MPa, modulus in tension reaches 85 ~ 87GPa, glass fiber density and E glassy phase are worked as, and monofilament tensile strength improves more than 30% compared with traditional E glass fibre, modulus in tension improves more than 18%.The advantage of the preparation method of this high strength glass fiber is forming temperature is 1320 ~ 1330 DEG C, liquidus temperature 1250 ~ 1270 DEG C, and production cost is low, is applicable to scale operation.
Embodiment
Table 1 is the embodiment of high strength glass fiber of the present invention.
By a kind of high strength glass fiber shown in table 1, comprise following component and make: SiO
253 ~ 57wt%, Al
2o
323 ~ 26wt%, MgO11.5 ~ 14.5wt%, B
2o
32 ~ 4wt%, Fe
2o
30.2 ~ 1.0wt%, CeO
20.2 ~ 1.0wt%, Li
2o0.2 ~ 0.8wt%, TiO
20 ~ 1wt%, the total content of above-mentioned oxide compound in high strength glass fiber reaches more than 99wt%, containing a small amount of ZrO in high strength glass fiber of the present invention
2, Y
2o
3and other compound, ZrO
2, Y
2o
3and other total amount of compound is less than 1wt%.
Embodiment:
Table 1
A preparation method for high strength glass fiber, is hybridly prepared into admixtion by above-mentioned each component, is contained in platinum material crucible, except SiO
2quartz sand is adopted to be beyond raw mineral materials, all other adopts oxide compound industrial chemicals, under 1500 DEG C ~ 1550 DEG C temperature condition, melting while stirring, found 12 hours, the glass melted is flow on heat-resisting steel sheet and plate, make frit block, get part material block and put into single hole wire-drawing crucible, melting more than 4 hours again at 1450 ~ 1500 DEG C, after single hole bushing temperature is down to 1320 ~ 1330 DEG C, start wire drawing, adjustment drawing speed, the continuous fibre diameter be drawn into is made to be 8 ~ 9 μm, the monofilament between small opening and drawing wire machine is got with special sampler and testing bar, test for monofilament tensile strength, get a part of frit block to measure for glass density, in addition the material of platinum material crucible is joined in the 100 full platinum wire-drawing crucibles in hole, adjustment crucible nozzle plate temperature to 1320 ~ 1330 DEG C, adjustment drawing speed, draws the precursor of about 12Tex, for measuring Young's modulus.
Glass density testing method: adopt suspension method, the weight before and after being namely immersed in the water with balance; Glass fiber single filament strength detection method: with sampler and testing bar get between small opening and bobbins without frayed single fiber, automatically recording strength machine with UTM-11-20 surveys powerful, measures Fibre diameter with measuring microscope under the condition of 800 x magnifications.Test condition: strength test, selected staple length 10mm, rate of extension 8mm/min, envrionment temperature 22 ~ 25 DEG C, humidity 40 ~ 55%; Fibre diameter 8 ~ 9 μm; Glass fibre Young's modulus testing method: adopt sonic approach, namely precursor one end rosin of about the 12Tex of full platinum wire-drawing crucible drawing is welded on copper core loudspeaker, the other end clip is fixed, two point of fixity distances are 100cm, loudspeaker are connected on audio signal generator, measure frequency when audio signal generator launching and receiving signal reaches minimum, according to frequency computation part Young's modulus.
Claims (2)
1. a high strength glass fiber, is characterized in that being made up of following component: SiO
253.8 ~ 54.3wt%, Al
2o
325.0 ~ 25.5wt%, MgO 14.5wt%, B
2o
33.0 ~ 3.5wt%, Fe
2o
30.6wt%, CeO
20.5 ~ 0.8wt%, Li
2o 0.4 ~ 0.6wt%, TiO
20.5 ~ 0.6wt%, ZrO
2, Y
2o
3and other compound, ZrO
2, Y
2o
3and other total amount of compound is less than 1wt%; Described high strength glass fiber is the continuous fibre of diameter 8 ~ 9 μm; Monofilament tensile strength reaches 4580 ~ 4687MPa; Modulus in tension reaches 86.4 ~ 86.8GPa; Forming temperature 1321-1322 DEG C; Liquidus temperature 1252-1254 DEG C; Described high strength glass fiber is prepared by the following method: each component is under 1500 DEG C ~ 1550 DEG C temperature condition, and melting while stirring makes glass in 12 hours, melting more than 4 hours again at 1450 ~ 1500 DEG C, 1321 ~ 1322 DEG C of wire drawings.
2. the preparation method of a high strength glass fiber, each component according to claim 1 melting under 1500 DEG C ~ 1550 DEG C temperature condition is it is characterized in that to make glass in 12 hours, melting more than 4 hours again at 1450 ~ 1500 DEG C, melten glass is drawn into the continuous fibre of diameter 8 ~ 9 μm under 1321 ~ 1322 DEG C of temperature condition.
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|---|---|---|---|
| CN201310121701.6A CN103172265B (en) | 2013-04-09 | 2013-04-09 | A kind of high strength glass fiber and preparation method thereof |
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| CN103172265B true CN103172265B (en) | 2015-10-28 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556711B (en) * | 2015-02-03 | 2017-08-18 | 重庆国际复合材料有限公司 | A kind of special-shaped glass fiber and preparation method thereof |
| CN106145687B (en) * | 2016-07-08 | 2018-05-01 | 中国计量大学 | A kind of high strength glass fiber |
| CN106219988B (en) * | 2016-07-08 | 2018-05-22 | 中国计量大学 | A kind of preparation method of high-performance glass fiber |
| CN106493650A (en) * | 2016-10-21 | 2017-03-15 | 吴迪 | A kind of preparation method of obdurability vitrified abrasive |
| DK3887329T3 (en) | 2018-11-26 | 2024-04-29 | Owens Corning Intellectual Capital Llc | HIGH PERFORMANCE FIBERGLASS COMPOSITION WITH IMPROVED COEFFICIENT OF ELASTICITY |
| JP7480142B2 (en) | 2018-11-26 | 2024-05-09 | オウェンス コーニング インテレクチュアル キャピタル リミテッド ライアビリティ カンパニー | High performance glass fiber composition having improved specific modulus |
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