JPS5934664B2 - Glass composition with good alkali resistance - Google Patents
Glass composition with good alkali resistanceInfo
- Publication number
- JPS5934664B2 JPS5934664B2 JP6447976A JP6447976A JPS5934664B2 JP S5934664 B2 JPS5934664 B2 JP S5934664B2 JP 6447976 A JP6447976 A JP 6447976A JP 6447976 A JP6447976 A JP 6447976A JP S5934664 B2 JPS5934664 B2 JP S5934664B2
- Authority
- JP
- Japan
- Prior art keywords
- alkali resistance
- weight
- glass composition
- glass
- content
- 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 27
- 239000003513 alkali Substances 0.000 title claims description 24
- 239000000203 mixture Substances 0.000 title claims description 19
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims description 5
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000005751 Copper oxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 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
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 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
- 229910052905 tridymite Inorganic materials 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、繊維化可能で耐アルカリ性の良好なガラス組
成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a glass composition that can be made into fibers and has good 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た。Generally, glass fibers for reinforcing cement, mortar, etc. with a high alkali content are required to have alkali resistance, and alkali-resistant glass compositions for glass fibers having various compositions have been developed to date.
本発明者等は、耐アルカ９性のガラス組成物について幾
多の検討を行なつた結果、ＳｉＯ２−２ｒｏ２−アルカ
９金属酸化物−アルカリ土類金属酸化物−Ａｌ２Ｏ３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
い耐アルカリ性が得られる事を発見した。As a result of numerous studies on alkali-9 resistant glass compositions, the present inventors found that copper oxide was added to a SiO2-2ro2-alka9 metal oxide-alkaline earth metal oxide-Al2O3 glass composition. It was discovered that extremely high alkali resistance could be obtained by introducing this.
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。
含有成分 重量％
５ｉ０２４７〜７２
ｚｒ０、５〜２０
アルカリ金属酸化物 １５〜２４
アルカリ土類金属酸化物 １〜８
Ｃｕ０１〜１０
Ａｌ２０３０．５〜７
本発明のガラス組成物は、ｓｉｏ２−２ｒｏ２−アルカ
リ金属酸化物−アルカリ土類金属酸化物−Ａｌ２Ｏ３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
。That is, it has been discovered that one of the glass compositions with extremely excellent alkali resistance is contained within the following ratio range.
Ingredients Weight % 5i0247-72 zr0,5-20 Alkali metal oxide 15-24 Alkaline earth metal oxide 1-8 Cu01-10 Al2030.5-7 The glass composition of the present invention has sio2-2ro2-alkali metal It is characterized by having extremely high alkali resistance by introducing copper oxide into an oxide-alkaline earth metal oxide-Al2O3 glass composition.
本発明のガラス組成物において、ＳｉＯ２の含有量を４
７重量％より少なくすると、きわめて高い耐アルカリ性
が得られなくな力、且つ、失透しやすくなる。In the glass composition of the present invention, the content of SiO2 is 4
When the amount is less than 7% by weight, extremely high alkali resistance cannot be obtained and devitrification tends to occur.
又、７２重量％より多くすると難溶性となるので、Ｓｉ
Ｏ２の含有量は４７乃至７２重量％の範囲が望ましい。
本発明のガラス組成物において、ＺｒＯ２の含有量を５
重量％より少なくすると、きわめて高い耐アルカリ性が
得られなくな力、又、２０重量％より多くすると難溶性
となるのでＺｒＯ２の含有量は、５乃至２０重量％の範
囲が望ましい。Moreover, if the amount exceeds 72% by weight, it becomes poorly soluble, so Si
The content of O2 is preferably in the range of 47 to 72% by weight.
In the glass composition of the present invention, the content of ZrO2 is 5
If it is less than 20% by weight, extremely high alkali resistance cannot be obtained, and if it is more than 20% by weight, it becomes poorly soluble, so the ZrO2 content is preferably in the range of 5 to 20% by weight.
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１５重量％より少なくすると、難溶性となＤ、
液相温度も高くなる。In the glass composition of the present invention, if the content of the alkali metal oxide is less than 15% by weight, the glass composition becomes poorly soluble;
The liquidus temperature also increases.
又、２４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９金属酸化物の含有
量は１５乃至２４重量％の範囲が望ましい。アルカリ金
属酸化物としては、Ｎａ２ＯｌＫ２ＯｌＬｉ２Ｏ等があ
る。本発明のガラス組成物に卦いてアルカリ土類金属酸
化物の配合量を８重量％より大くするど失透しやすくな
るので、８重量％以下が望ましい。Furthermore, if the content exceeds 24% by weight, extremely high alkali resistance cannot be obtained, so the content of the alkali 9 metal oxide is preferably in the range of 15 to 24% by weight. Examples of alkali metal oxides include Na2OlK2OlLi2O. If the amount of alkaline earth metal oxide added to the glass composition of the present invention exceeds 8% by weight, devitrification tends to occur, so it is preferably 8% by weight or less.
また、ＣａＯを主とするアルカリ土類金属酸化物は粘度
低下剤としての効果があり１１重量％以上添加すること
が望ましい。アルカリ土類金属酸化物としては、ＣａＯ
ｌＭｇＯｌＢａＯ等が有効である。本発明のガラス組成
物に卦いて、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。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、着色が強くなるので、ＣｕＯの含有量は、１
乃至１０重量％の範囲が望ましい。本発明のガラス組成
物において、Ａｌ２Ｏ３の配合量を７重量％より多くす
ると難溶性となるので、Ａｌ２Ｏ３の配合量は７重量％
以下にするのが望ましい。Furthermore, alkaline earth metal oxides mainly including CaO are effective as viscosity reducing agents, and it is desirable to add 11% by weight or more. As the alkaline earth metal oxide, CaO
lMgOlBaO etc. are effective. Regarding the glass composition of the present invention, the effect of CuO is to improve the alkali resistance similar to the effect of ZrO2, but among various aqueous alkali solutions, the effect of preventing deterioration in cement extract is particularly remarkable. If the content of CuO is less than 1% by weight, extremely high alkali resistance cannot be obtained, and
If the CuO content exceeds 1% by weight, the effect on alkali resistance will decrease and the coloring will become stronger.
A range of 10 to 10% by weight is desirable. In the glass composition of the present invention, if the blending amount of Al2O3 is more than 7% by weight, it becomes poorly soluble, so the blending amount of Al2O3 is 7% by weight.
It is desirable to do the following.
また、Ａｌ，Ｏ，の添加によつて特に低ＺｒＯ２域での
耐アルカリ性向上への寄与が高くなる。Ａｌ２Ｏ，の添
加量は０．５重量％以上、好ましくは２重量％以上にす
ることが望ましい。以上実施例により本発明を説明する
。Furthermore, the addition of Al and O makes a significant contribution to improving the alkali resistance, especially in the low ZrO2 range. It is desirable that the amount of Al2O added be 0.5% by weight or more, preferably 2% by weight or more. The present invention will be described above 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、空気空冷したものである。The glass sample shown in this example was obtained 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.
本実施例に示した耐アルカリ性の試験方法は、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。The alkali resistance test method shown in this example involves adding 3 kg of water to 1 kg of Portland cement, stirring well, allowing it to stand for 1 hour, filtering the supernatant liquid, and using the alkaline solution 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、１００１
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 is 1001
Put 20 grams of glass raw material into a platinum crucible with a capacity of 1
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虱Δは溶解状態が
比較的良好なものである。また、更に組成物の溶解状態
を把握するために、１００１容量のアルミナルツボの中
にガラス原料２０ｇを入れ２００℃／時間の昇温速度で
加熱して、１０００℃以上の温度で５０℃間隔で取り出
して、Ｘ線回折法により結晶の残留により現れるピーク
が消失する温度を調べた。O has a very good solubility state, and Lice Δ has a relatively good solubility state. In addition, in order to further understand the melting state of the composition, 20 g of glass raw material was placed in a 1001 capacity alumina crucible and heated at a heating rate of 200°C/hour. The sample was taken out and the temperature at which the peak appearing due to residual crystals disappeared was determined by X-ray diffraction.
表より１ＣＵ０を導入した実施例のガラス試料は、比較
的ＺｒＯ，の含有量の少ない試料に卦いても耐アルカリ
性が優れ、比較例のガラス試料１よりもＺｒＯ，の含有
量の少ない、実施例のガラス試料２，３，５及び６にお
いて、比較例のガラス試料１より耐アルカリ性が優れて
いるのはＣｕＯの耐アルカリ性を向上させる効果が働い
ているためである。From the table, the glass sample of the example in which 1CU0 was introduced has excellent alkali resistance even when compared to the sample with a relatively low content of ZrO, and the glass sample of the example with a lower content of ZrO than the comparative example glass sample 1 The reason why glass samples 2, 3, 5, and 6 have better alkali resistance than comparative glass sample 1 is that CuO has an effect of improving alkali resistance.
Claims (1)
５〜２０％アルカリ金属酸化物１５〜２４％、アルカリ
土類金属酸化物１〜８％、ＣｕＯ １〜１０％、Ａｌ＿
２Ｏ＿３ ０．５〜７％より成る事を特徴とする耐アル
カリ性の良好なガラス組成物。 ２ 重量％でＳｉＯ＿２ ６２〜６８％、ＺｒＯ＿２
１２〜１６％、Ｎａ＿２Ｏ １６〜２０％、ＣａＯ １
〜６％、Ａｌ＿２Ｏ＿３ ０．５〜４％、ＣｕＯ １〜
４％より成る事を特徴とする特許請求の範囲第１項に記
載の耐アルカリ性の良好なガラス組成物。[Claims] 1% by weight of SiO_2 47-72%, ZrO_2
5-20% alkali metal oxides 15-24%, alkaline earth metal oxides 1-8%, CuO 1-10%, Al_
A glass composition with good alkali resistance characterized by comprising 0.5 to 7% of 2O_3. 2 wt% SiO_2 62-68%, ZrO_2
12-16%, Na_2O 16-20%, CaO 1
~6%, Al_2O_3 0.5~4%, CuO 1~
4% of the glass composition according to claim 1, which has good alkali resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6447976A JPS5934664B2 (en) | 1976-06-04 | 1976-06-04 | Glass composition with good alkali resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6447976A JPS5934664B2 (en) | 1976-06-04 | 1976-06-04 | Glass composition with good alkali resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52147616A JPS52147616A (en) | 1977-12-08 |
| JPS5934664B2 true JPS5934664B2 (en) | 1984-08-23 |
Family
ID=13259389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6447976A Expired JPS5934664B2 (en) | 1976-06-04 | 1976-06-04 | Glass composition with good alkali resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5934664B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62131666U (en) * | 1986-02-14 | 1987-08-19 | ||
| JPS62139362U (en) * | 1986-02-25 | 1987-09-02 | ||
| JPS644159U (en) * | 1987-06-26 | 1989-01-11 |
-
1976
- 1976-06-04 JP JP6447976A patent/JPS5934664B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62131666U (en) * | 1986-02-14 | 1987-08-19 | ||
| JPS62139362U (en) * | 1986-02-25 | 1987-09-02 | ||
| JPS644159U (en) * | 1987-06-26 | 1989-01-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52147616A (en) | 1977-12-08 |
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