JPS5934662B2 - Alkali-resistant glass composition - Google Patents
Alkali-resistant glass compositionInfo
- Publication number
- JPS5934662B2 JPS5934662B2 JP6447576A JP6447576A JPS5934662B2 JP S5934662 B2 JPS5934662 B2 JP S5934662B2 JP 6447576 A JP6447576 A JP 6447576A JP 6447576 A JP6447576 A JP 6447576A JP S5934662 B2 JPS5934662 B2 JP S5934662B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- alkali
- weight
- glass composition
- alkali resistance
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 title claims description 24
- 239000003513 alkali Substances 0.000 title claims description 20
- 239000000203 mixture Substances 0.000 title claims description 14
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 7
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 239000005751 Copper oxide Substances 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000075 oxide glass Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- 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
- C03C4/00—Compositions for glass with special properties
- C03C4/20—Compositions for glass with special properties for chemical resistant glass
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Description
【発明の詳細な説明】
本発明は、紡糸性の優れた高い耐アルカリ性を有するガ
ラス組成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a glass composition having excellent spinnability and high alkali resistance.
一般に、アルカリ含有率の高い、セメントやモルタル等
を補強するためのガラス繊維としては、耐アルカリ性が
要求され、現在までに種々の配合組成のガラス繊維用耐
アルカリ性ガラス組成物が開発されてきた。Generally, glass fibers for reinforcing cement, mortar, etc. that have a high alkali content are required to have alkali resistance, and to date, alkali-resistant glass compositions for glass fibers with various compositions have been developed.
本発明者等は、耐アルカリ性のガラス組成物について幾
多の検討を行なつた結果、ＣａＯ、ＭｇＯ、ＢａＯ等の
アルカリ土類金属酸化物を含まないｓｉｏ２−２にｏ２
−アルカリ金属酸化物系ガラス組成物に酸化銅を導入す
る事により、きゎめて高い耐アルカリ性が得られる事を
発見しｚすなわち、きわめて耐アルカリ性の優れたガラ
ス組成物の１つは、次の比率の範囲内に含まれる事を発
見した。As a result of numerous studies on alkali-resistant glass compositions, the present inventors found that o2 in sio2-2, which does not contain alkaline earth metal oxides such as CaO, MgO, and BaO,
- It was discovered that extremely high alkali resistance can be obtained by introducing copper oxide into an alkali metal oxide glass composition.In other words, one of the glass compositions with extremely high alkali resistance is the following: It was discovered that the ratio is within the range of .
含有成分 重量％
５ｉ０２５０〜７５
ＺｒＯ２８〜２０
アルカリ金属酸化物 １４〜２５
Ｃｕ０１〜１０
Ａｌ２０３０〜４
本発明の耐アルカリ性ガラス組成物臥ＳｉＯ２−２ｒｏ
２−アルカリ金属酸化物系ガラス組成物に酸化銅を導入
する事により、きわめて高い耐アルカリ性を有せしめた
事を特徴とするものである。Ingredients Weight % 5i0250-75 ZrO28-20 Alkali metal oxide 14-25 Cu01-10 Al2030-4 Alkali-resistant glass composition of the present invention SiO2-2ro
It is characterized by having extremely high alkali resistance by introducing copper oxide into the 2-alkali metal oxide glass composition.
本発明のガラス組成物において、ＳｉＯ２の含有量を５
０重量％より少なくすると、きわめて高い耐アルカリ性
が得られなくなり、又、７５重量％より多くすると難溶
性となるのでＳｉＯ２の含有量は、５０乃至７５重量％
の範囲が望ましい。本発明のガラス組成物において、Ｚ
ｒＯ２の含有量を８重量％より少なくすると、きわめて
高い耐アルカリ性が得られなくなり、又、２０重量％よ
り多くすると難溶性となるのでＺにＯ２の含有量ＩＩＡ
８乃至２０重量％の範囲が望ましい。本発明のガラス組
成物において、アルカリ金属酸化物の含有量を１４重量
％より少なくすると、難溶性となり、液相温度も高くな
る。又、２５重量％より多くすると、きわめて高い耐ア
ルカリ性が得られなくなるので、アルカリ金属酸化物の
含有量は１４乃至２５重量％の範囲が望ましい。アルカ
リ金属酸化物としては、Ｎａ２Ｏ，Ｋ２ＯＬｉ２Ｏ等が
ある。本発明のガラス組成物において、ＣｕＯの効果は
、ＺｒＯ２の効果と同様に耐アルカリ性を向上させる働
きがあるが、各種アルカリ水溶液中で、特にセメント抽
出液に対する劣化防止効果が顕著である。In the glass composition of the present invention, the content of SiO2 is 5
If it is less than 0% by weight, extremely high alkali resistance cannot be obtained, and if it is more than 75% by weight, it becomes poorly soluble, so the content of SiO2 should be 50 to 75% by weight.
range is desirable. In the glass composition of the present invention, Z
If the rO2 content is less than 8% by weight, extremely high alkali resistance cannot be obtained, and if it is more than 20% by weight, it becomes poorly soluble.
A range of 8 to 20% by weight is desirable. In the glass composition of the present invention, if the content of the alkali metal oxide is less than 14% by weight, it becomes poorly soluble and the liquidus temperature becomes high. Further, if the content exceeds 25% by weight, extremely high alkali resistance cannot be obtained, so the content of the alkali metal oxide is preferably in the range of 14 to 25% by weight. Examples of alkali metal oxides include Na2O, K2OLi2O, and the like. In the glass composition of the present invention, the effect of CuO is to improve alkali resistance similarly to the effect of ZrO2, but among various aqueous alkaline solutions, the effect of preventing deterioration in cement extract is particularly remarkable.
ＣｕＯの含有量を１重量％より少なくすると、きわめて
高い耐アルカリ性が得られず、又、１０重量％より多く
すると耐アルカリ性に対する効果が減少し、且つ着色が
強くなり紡糸作業時の断糸回数が著しく多くなつてくる
。ガラスはブツシングといわれる底部に多数の孔をもつ
白金製の容器に入れられて加熱される。この際、ブツシ
ングからの熱は、ＣｕＯの添加が多くなるとブツシング
周辺部のガラスに吸収され、ブツシング中央部のガラス
と温度差が大きくなつてくるため断糸しやすくなると考
えられる。したがつて、ＣｕＯの含有量は、１乃至１０
重量％の範囲が望ましい。ガラス原料中にはＡｌ２Ｏ３
が不純物として混入する事が多い。Ａｌ２Ｏ３が多く含
まれるとガラスは難溶性となるので、４重量％以下とな
るような原料を用いるのが望ましい。以下実施例により
本発明を説明する。If the CuO content is less than 1% by weight, very high alkali resistance cannot be obtained, and if it is more than 10% by weight, the effect on alkali resistance will decrease and the coloring will be strong and the number of yarn breaks during spinning will be reduced. The number is increasing significantly. The glass is heated in a platinum container called a bushing, which has many holes in the bottom. At this time, it is thought that the more CuO is added to the bushing, the more the heat from the bushing is absorbed by the glass at the periphery of the bushing, and the temperature difference with the glass at the center of the bushing increases, making yarn breakage more likely. Therefore, the content of CuO is 1 to 10
A weight percent range is desirable. Al2O3 in the glass raw material
are often mixed in as impurities. If a large amount of Al2O3 is contained, the glass becomes poorly soluble, so it is desirable to use a raw material containing 4% by weight or less. The present invention will be explained below with reference to Examples.
本実施例に示したガラス試料は、白金ルツボに前もつて
調合されたガラス原料を入れこれを１４５０℃の電気炉
中で３時間溶解した後、室温空冷したものである。The glass sample shown in this example was prepared by placing a previously prepared glass raw material in a platinum crucible, melting it in an electric furnace at 1450° C. for 3 hours, and then cooling it in air at room temperature.
本実施例に示した耐アルカリ性の試験方法裔ζポルトラ
ンドセメント１キログラムに水を３キログラム加え良く
かきまぜた後、１時間放置し、その上澄液を濾過したも
のを試験用アルカリ液（セメント抽出液、ＰＨ＝１３，
５）とした。Test method for alkali resistance shown in this example: Add 3 kg of water to 1 kg of Portland cement, stir well, leave to stand for 1 hour, filter the supernatant liquid, and use the alkaline liquid for testing (cement extract). , PH=13,
5).
この試験液１００ＣＣを８０℃に加熱し、３５〜６０メ
ツシユのガラスパウダー試料４グラムをこの液中に１０
日間浸漬し、その重量減少率をもつて耐アルカリ性を示
した。本実施例で示した溶解性の試験方法は、１００工
容量の白金ルツボ中にガラス原料２０グラムを入れ、１
５００℃で１時間保持した後の溶解状態を肉眼観察で判
断した。Heat 100 cc of this test solution to 80°C, and add 4 grams of glass powder sample of 35 to 60 mesh into this solution at 10 cc.
After being immersed for days, the weight loss rate showed alkali resistance. The solubility test method shown in this example involves putting 20 grams of glass raw material into a platinum crucible with a capacity of 100, and
The state of dissolution after holding at 500° C. for 1 hour was determined by visual observation.
Ｏは溶解状態が非常に良好なものであり、Δは溶解状態
が比較的良好なものである。また、さらに溶解状態を把
握するために１００１容量のアルミナルツボ中にガラス
２０ｇを入れ、２００℃／時間の昇温速度で加熱し、１
０００℃以上の温度で５０℃間隔で取り出しＸ線回折に
よつてピークの消失する温度を調べた。O has a very good dissolved state, and Δ has a relatively good dissolved state. In addition, in order to further understand the melting state, 20g of glass was placed in a 1001 capacity alumina crucible, heated at a temperature increase rate of 200°C/hour, and
The temperature at which the peak disappears was investigated by X-ray diffraction taken out at intervals of 50°C at a temperature of 000°C or higher.
表より、ＣｕＯを導入した実施例のガラス試料は、比較
例のＥ−ガラス及びアルカリ土類金属酸化物であるＣａ
Ｏを含む比較例のガラス試料番号１の試料に比し、耐ア
ルカリ性が優れている事が分かる。From the table, it can be seen that the glass sample of the example in which CuO was introduced, the E-glass of the comparative example, and the alkaline earth metal oxide Ca
It can be seen that the alkali resistance is superior to the glass sample No. 1 of the comparative example containing O.
Claims (1)
８〜２０％、アルカリ金属酸化物１４〜２５％、ＣｕＯ
１〜１０％、Ａｌ＿２Ｏ＿３ ０〜４％より成る事を
特徴とする耐アルカリ性ガラス組成物。 ２ 重量％でＳｉＯ＿２ ５５〜６５％、ＺｒＯ＿２１
４〜２０％、Ｎａ＿２Ｏ １５〜２３％、ＣｕＯ １〜
４％、Ａｌ＿２Ｏ＿３ ０〜１％より成る事を特徴とす
る特許請求の範囲第１項記載の耐アルカリ性ガラス組成
物。 ３ 重量％でＳｉＯ＿２ ６４％、Ｎａ２＿Ｏ １７％
、ＺｒＯ＿２ １７％、ＣｕＯ ２％より成る事を特徴
とする特許請求の範囲第１項、又は第２項記載の耐アル
カリ性ガラス組成物。[Claims] 1% by weight of SiO_2 50-75%, ZrO_2
8-20%, alkali metal oxide 14-25%, CuO
An alkali-resistant glass composition characterized by comprising 1 to 10% of Al_2O_3 and 0 to 4% of Al_2O_3. 2 wt% SiO_2 55-65%, ZrO_21
4-20%, Na_2O 15-23%, CuO 1-
4% and Al_2O_3 0 to 1%. 3% by weight: SiO_2 64%, Na2_O 17%
, 17% of ZrO_2, and 2% of CuO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6447576A JPS5934662B2 (en) | 1976-06-04 | 1976-06-04 | Alkali-resistant glass composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6447576A JPS5934662B2 (en) | 1976-06-04 | 1976-06-04 | Alkali-resistant glass composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52147612A JPS52147612A (en) | 1977-12-08 |
| JPS5934662B2 true JPS5934662B2 (en) | 1984-08-23 |
Family
ID=13259282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6447576A Expired JPS5934662B2 (en) | 1976-06-04 | 1976-06-04 | Alkali-resistant glass composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5934662B2 (en) |
-
1976
- 1976-06-04 JP JP6447576A patent/JPS5934662B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52147612A (en) | 1977-12-08 |
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