Glass composition for producing high strength and high modulus fibers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-013/00
C03C-003/085
C03C-003/087
B29K-309/08
B29L-031/08
출원번호
US-0719508
(2011-06-30)
등록번호
US-9352999
(2016-05-31)
국제출원번호
PCT/IB2011/052897
(2011-06-30)
§371/§102 date
20130116
(20130116)
국제공개번호
WO2012/001654
(2012-01-05)
발명자
/ 주소
Hofmann, Douglas A.
McGinnis, Peter Bernard
출원인 / 주소
OCV Intellectual Capital, LLC
대리인 / 주소
Calfee, Halter & Griswold LLP
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
A glass composition including SiO2 in an amount from about 69.5 to about 80.0% by weight, Al2O3 in an amount from about 5.0 to about 18.5% by weight, MgO in an amount from about 5.0 to about 14.75% by weight, CaO in an amount from 0.0 to about 3.0% by weight, Li2O in an amount from about 3.25 to abo
A glass composition including SiO2 in an amount from about 69.5 to about 80.0% by weight, Al2O3 in an amount from about 5.0 to about 18.5% by weight, MgO in an amount from about 5.0 to about 14.75% by weight, CaO in an amount from 0.0 to about 3.0% by weight, Li2O in an amount from about 3.25 to about 4.0% by weight, and Na20 in an amount from 0.0 to about 2.0% by weight is provided. Glass fibers formed from the inventive composition may be used in applications that require high strength, high stiffness, and low weight. Such applications include, but are not limited to, woven fabrics for use in forming wind blades, armor plating, and aerospace structures.
대표청구항▼
1. A composition for preparing high strength, light weight glass fibers comprising: SiO2 in an amount from about 69.5 to about 80.0%% by weight of the total composition,Al2O3 in an amount from about 5.0 to about 18.5% by weight of the total composition,CaO in an amount from 0.0 to about 3.0% by weig
1. A composition for preparing high strength, light weight glass fibers comprising: SiO2 in an amount from about 69.5 to about 80.0%% by weight of the total composition,Al2O3 in an amount from about 5.0 to about 18.5% by weight of the total composition,CaO in an amount from 0.0 to about 3.0% by weight of the total composition,MgO in an amount from 5.0 to about 14.75% by weight of the total composition,Li2O in an amount from 3.25 to about 4.0% by weight of the total composition, andNa2O in an amount from 0.0 to about 2.0% by weight of the total composition, wherein said composition comprises less than 1.0% by weight of B2O3 and wherein said composition is capable of producing glass fibers having a specific modulus of about 33.9 MJ/kg to about 35 MJ/kg. 2. The glass composition of claim 1, wherein Al2O3 is present in an amount from about 9.0 to about 15.4% by weight of the total composition, andMgO is present in an amount from 5.0 to about 10.2% by weight of the total composition. 3. The glass composition of claim 2, wherein Al2O3 is present in an amount from about 9.5 to about 15.3% by weight of the total composition, andMgO is present in an amount from 6.9 to about 10.2% by weight of the total composition. 4. The glass composition of claim 1, wherein SiO2 is present in an amount from about 69.5 to about 74.5% by weight of the total composition, andAl2O3 is present in an amount from about 10.30 to about 18.5% by weight of the total composition. 5. The glass composition of claim 1, wherein SiO2 is present in an amount from about 69.5 to about 76.5% by weight of the total composition, andAl2O3 is present in an amount from about 5.0 to about 15.4% by weight of the total composition. 6. The composition of claim 1, wherein said composition is free of B2O3 and fluorine. 7. The composition of claim 1, wherein said composition has a ΔT up to about 250° C. 8. The composition of claim 1, wherein said composition has a ΔT of from about 100° C. to about 250° C. 9. The composition of claim 1, wherein said composition has a log 3 temperature from about 1255° C. to about 1550° C. 10. The composition of claim 1, wherein said composition has a liquidus temperature no greater than about 1510° C. 11. The composition of claim 1, wherein components of said composition are melted in a refractory tank melter. 12. A continuous high strength, light weight glass fiber produced from a composition according to claim 1. 13. The glass fiber of claim 12, wherein said glass fiber has a specific strength from about 1.74 MJ/kg to about 2.09 MJ/kg. 14. The glass fiber of claim 12, wherein said glass fiber has a pristine fiber tensile strength between about 4200 and about 5000 MPa, a modulus between about 80 and about 86 GPa, and a density between about 2.35 and about 2.46 g/cc. 15. A method of preparing a reinforced composite product comprising combining at least one polymer matrix material and a plurality of glass fibers according to claim 12. 16. The glass fiber of claim 13, wherein said glass fiber has a specific strength of greater than 2.01 MJ/Kg and less than or equal to about 2.09 MJ/kg. 17. The glass fiber of claim 1, wherein said glass fiber has a specific modulus of greater than 34.1 MJ/Kg and less than or equal to about 35.0 MJ/kg. 18. A method of forming a continuous high performance glass fiber comprising: providing a molten glass composition including a composition according to claim 1; anddrawing said molten glass composition through orifices in a bushing to form a continuous glass fiber. 19. The method of claim 18, wherein said glass fiber has a specific strength from about 1.74 MJ/kg to about 2.09 MJ/kg. 20. The method of claim 18, wherein said glass fiber has a specific modulus of greater than 34.1 MJ/Kg and less than or equal to about 35.0 MJ/kg. 21. The method of claim 19, wherein said glass fiber has a specific strength of greater than 2.01 MJ/Kg and less than or equal to about 2.09 MJ/kg. 22. The method of claim 18, wherein said glass fiber has a pristine fiber tensile strength between about 4200 and about 5000 MPa, a modulus between about 80 and about 86 GPa, and a density between about 2.35 and about 2.46 g/cc. 23. A method of preparing a reinforced composite product comprising: preparing a plurality of glass fibers according to the method of claim 18 and combining said plurality of glass fibers with at least one polymer matrix material. 24. A reinforced composite product comprising: a polymer matrix; anda plurality of glass fibers, said glass fibers being produced from a composition comprising:SiO2 in an amount from about 69.5 to about 80.0%% by weight of the total composition,Al2O3 in an amount from about 5.0 to about 18.5% by weight of the total composition,CaO in an amount from 0.0 to about 1.8% by weight of the total composition,MgO in an amount from 5.0 to about 14.75% by weight of the total composition,Li2O in an amount from 3.25 to about 4.0% by weight of the total composition, andNa2O in an amount from 0.0 to about 2.0% by weight of the total composition, wherein said composition has less than 1.0% by weight of B2O3. 25. The composite product of claim 24, wherein said polymer matrix is a thermoplastic polymer selected from polyesters, polypropylene, polyamide, polyethylene terephtalate, polybutylene and combinations thereof. 26. The composite product of claim 24, wherein said polymer matrix is a thermoset polymer selected from epoxy resins, unsaturated polyesters, phenolics, vinylesters and combinations thereof.
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