JPS63297238A - Chemical-resistant glass - Google Patents
Chemical-resistant glassInfo
- Publication number
- JPS63297238A JPS63297238A JP13285487A JP13285487A JPS63297238A JP S63297238 A JPS63297238 A JP S63297238A JP 13285487 A JP13285487 A JP 13285487A JP 13285487 A JP13285487 A JP 13285487A JP S63297238 A JPS63297238 A JP S63297238A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- mol
- chemical
- fiber
- si3n4
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 38
- 239000000126 substance Substances 0.000 title claims abstract description 18
- 239000003365 glass fiber Substances 0.000 abstract description 19
- 239000002253 acid Substances 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 10
- 239000003513 alkali Substances 0.000 abstract description 9
- 239000000835 fiber Substances 0.000 abstract description 9
- 239000012299 nitrogen atmosphere Substances 0.000 abstract description 6
- 238000009987 spinning Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 6
- 229910052581 Si3N4 Inorganic materials 0.000 abstract 3
- 229910052681 coesite Inorganic materials 0.000 abstract 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract 3
- 229910052682 stishovite Inorganic materials 0.000 abstract 3
- 229910052905 tridymite Inorganic materials 0.000 abstract 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 239000004568 cement Substances 0.000 description 6
- 102100030058 Secreted frizzled-related protein 1 Human genes 0.000 description 5
- 239000012783 reinforcing fiber Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010526 radical polymerization reaction Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- -1 1 to 45 mol% Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 101000904787 Homo sapiens Serine/threonine-protein kinase ATR Proteins 0.000 description 1
- 229910005091 Si3N Inorganic materials 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material 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
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000000075 oxide glass Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Landscapes
- Glass Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、耐薬品性ガラスおよびその製造方法に関する
。さらに、詳しくは本発明はＦＲＰ、繊維補強セメント
などの複合材料用の補強繊維として用いるに適した耐薬
品性のガラスおよびそゐ製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a chemical-resistant glass and a method for producing the same. More specifically, the present invention relates to a chemical-resistant glass suitable for use as reinforcing fibers for composite materials such as FRP and fiber-reinforced cement, and a method for producing the glass.
従来の技術
近年、プラスチック、あるいはセメントなどの構造材を
強化する有力な手段として、これらの材料にガラス繊維
を混合する材料の複合化が進められている。BACKGROUND OF THE INVENTION In recent years, as an effective means of reinforcing structural materials such as plastics or cement, composite materials have been developed in which glass fibers are mixed with these materials.
例えば、ＦＲＰ （ガラス繊維強化複合材料）は工業材
料、建築資材、耐食装置など多方面に広く用いられてお
り、補強繊維としてＥ−ガラスが用いられている。しか
しながら、かかる補強繊維Ｅ−ガラス自身には耐薬品性
（耐酸性）がほとんどなく、したがってＦＲＰとしての
耐薬品性はマトリックス樹脂の耐薬品性に依存している
。しかしながら、Ｆ’ＲＰが長期にわたり薬液と接触し
ていると、徐々に薬液が浸透してガラス繊維に達し、ガ
ラス繊維を侵し補強効果が著しく低減する。さらに、ガ
ラスからの溶出物がＰＲＰの白化やクラック発生の原因
ともなる。耐食性ＦＲＰのうち、耐酸性を要する分野は
全体の９０％を占めており、耐酸性ガラスファイバーの
開発は、強く望まれている。For example, FRP (glass fiber reinforced composite material) is widely used in various fields such as industrial materials, construction materials, and corrosion-resistant devices, and E-glass is used as the reinforcing fiber. However, such reinforcing fiber E-glass itself has almost no chemical resistance (acid resistance), and therefore, the chemical resistance of FRP depends on the chemical resistance of the matrix resin. However, if F'RP is in contact with the chemical solution for a long period of time, the chemical solution gradually penetrates and reaches the glass fibers, corroding the glass fibers and significantly reducing the reinforcing effect. Furthermore, elution from the glass causes whitening and cracking of PRP. Among corrosion-resistant FRPs, fields requiring acid resistance account for 90% of the total, and the development of acid-resistant glass fibers is strongly desired.
一方、セメント強化用繊維材料としては、従来石綿が用
いられていたが、環境汚染防止のため、その使用は禁止
される傾向にある。ガラス繊維はカーボンファイバーや
アラミド繊維に比べて、低価格であることから石綿の代
替として最も多く用いられている。しかしながら、ガラ
ス繊維はアルカリ溶液中で急速に劣化するためセメント
強化用としては長期的な信頼性に欠ける。On the other hand, asbestos has conventionally been used as a fiber material for reinforcing cement, but its use is becoming prohibited in order to prevent environmental pollution. Glass fiber is the most commonly used substitute for asbestos because it is cheaper than carbon fiber or aramid fiber. However, glass fiber deteriorates rapidly in alkaline solutions, so it lacks long-term reliability as a cement reinforcement material.
発明が解決しようとする問題点
本発明は耐酸性、耐アルカリ性にすぐれ、ＦＲＰ１セメ
ント強化用などに好適なオキシナイトライドガラスから
なる耐薬品性ガラスを提供することを目的とする。Problems to be Solved by the Invention An object of the present invention is to provide a chemical-resistant glass made of oxynitride glass that has excellent acid resistance and alkali resistance and is suitable for reinforcing FRP1 cement.
本発明のオキシナイトライドガラスは、酸化物ガラスの
酸素原子が窒素に置き換わった構造を有しており、窒素
原子の結合原子価が３であるところから従来のガラスと
異なった優れた物性を有する。The oxynitride glass of the present invention has a structure in which the oxygen atoms of the oxide glass are replaced with nitrogen, and since the bond valence of the nitrogen atom is 3, it has excellent physical properties different from conventional glasses. .
問題点を解決するための手段
本発明者らは、強化用繊維の原料ガラスとして優れた耐
薬品性を有するガラスを得るべく種々検討を重ねた結果
、材料としてオキシナイトライドガラスを用い、これを
特定の組成に設定すれば、極めて耐薬品性に富む高強度
、高弾性のガラス繊維が得られるとの知見を得、本発明
を完成するに至った。Means for Solving the Problems As a result of various studies in order to obtain a glass with excellent chemical resistance as a raw material glass for reinforcing fibers, the present inventors used oxynitride glass as a material and The present invention was completed based on the finding that a glass fiber with extremely high chemical resistance, high strength, and high elasticity can be obtained by setting a specific composition.
すなわち、本発明は、主成分として５ｉｆｔ５〜６０モ
ル％、Ｓｉ、Ｎ、１〜４５モル％、ＣａＯ ３０〜７６
モル％を含有し、さらに、Ｍｇ００〜１０モル％、ＡＩ
、０３０〜２５モル％を含有し、（Ｓ ｉ ｏ、＋ Ｓ
ｉ ３Ｎ４） ノ値が２５〜５０モル％であり、前記
５つの成分の合計が８５〜１００モル％であることを特
徴とする耐薬品性ガラスを提供するものである。
′つぎに本発明のオキシナイトライドガラスの成分限定
理由について述べる。That is, the present invention contains 5ift5 to 60 mol%, Si, N, 1 to 45 mol%, and CaO 30 to 76 mol% as main components.
Contains mol%, and further contains Mg00 to 10 mol%, AI
, 030 to 25 mol%, (S io, + S
The present invention provides a chemical-resistant glass characterized in that the chemical resistant glass has a value of 25 to 50 mol %, and a total of the five components is 85 to 100 mol %.
'Next, the reasons for limiting the components of the oxynitride glass of the present invention will be described.
本発明の耐薬品性ガラス繊維において、５ｉＯｚの含有
量は５〜６０モル％である。Ｓｉｎ、の含有量が５モル
％より少ないと結晶化し、ガラス状態が得られない。ま
た、６０モル％より多いと、耐酸性および耐アルカリ性
が低下するとともに強度も低下する。In the chemical-resistant glass fiber of the present invention, the content of 5iOz is 5 to 60 mol%. If the content of Sin is less than 5 mol %, crystallization occurs and a glass state cannot be obtained. Moreover, when it is more than 60 mol%, acid resistance and alkali resistance are reduced, and strength is also reduced.
つぎに、Ｓｉ、Ｎ、の含有量は１〜４５モル％である。Next, the content of Si and N is 1 to 45 mol%.
１モル％未満であると、窒素含有の効果がなく、また、
４５モル％を越えると、結晶化を生じる。If it is less than 1 mol%, there is no effect of nitrogen inclusion, and
If it exceeds 45 mol%, crystallization will occur.
ＣａＯの含有量は３０〜７６モル％である。The content of CaO is 30 to 76 mol%.
ＣａＯが３０モル％未満であると、結晶化を生じ、一方
、 ７６モル％を越えると耐酸性、耐アルカリ性が低下
する。If CaO is less than 30 mol%, crystallization will occur, while if it exceeds 76 mol%, acid resistance and alkali resistance will decrease.
また、ＭｇＯの含有量は０〜１０モル％である。Moreover, the content of MgO is 0 to 10 mol%.
１０モル％を越えると、耐酸性、耐アルカリ性が低下す
る。If it exceeds 10 mol%, acid resistance and alkali resistance will decrease.
Ａ１・１０３はガラスの強度の向上に効果があり、その
含有量は０〜２５モル％である。２５モル％を越えると
、耐酸性、耐アルカリ性が低下する。A1.103 is effective in improving the strength of glass, and its content is 0 to 25 mol%. If it exceeds 25 mol%, acid resistance and alkali resistance will decrease.
さらに、本発明においては前記５ｉＯｙと５ｉｓＮ４と
の合計量が２５〜５０モル％である。Furthermore, in the present invention, the total amount of 5iOy and 5isN4 is 25 to 50 mol%.
Ｓ ｉＯ２＋ Ｓ ｒ ３Ｎ４の値がこの範囲外である
と、機械強度的に弱くなる。If the value of S iO2+ S r 3N4 is outside this range, the mechanical strength will be weak.
また、本発明の耐薬品性オキシナイトライドガラスは、
面記５つの成分の合計（Ｍｇ Ｏ，Ａ ｌ ｔＯ５は含
有量０モル％の場合がある）が ８５〜１００モル％で
ある。かかる成分の合計量が８５モル％未満であると、
機械強度的に弱くなる。Furthermore, the chemical-resistant oxynitride glass of the present invention is
The total of the five components listed above (the content of MgO and AltO5 may be 0 mol%) is 85 to 100 mol%. The total amount of such components is less than 85 mol%,
Mechanical strength becomes weaker.
本発明のオキシナイトライドガラスが含有する他の成分
としては、Ｓ ｒ Ｏ，Ａ Ｉ Ｎ、 Ｔ ｉ Ｏｘ、
Ｙ、０８、ＺｒＯ＊、ＮａｔＯｌＫｔＯｌＢ、０３どが
挙げられる。Other components contained in the oxynitride glass of the present invention include S r O, AI N, T i Ox,
Examples include Y, 08, ZrO*, NatOlKtOlB, 03, etc.
このような組成のオキシナイトライドガラスを製造する
には、前記金属酸化物に金属窒化物を加え、高温で熔融
を行う。これら混合物を熔融するには、電気炉、イメー
ジ炉などの加熱炉を用い、窒素雰囲気下、温度１４００
〜１９００℃、昇温速度１０〜８００℃／ｆｆ１ｉｎに
て処理する。In order to manufacture oxynitride glass having such a composition, a metal nitride is added to the metal oxide and melted at a high temperature. To melt these mixtures, a heating furnace such as an electric furnace or an image furnace is used to melt the mixture at a temperature of 1,400 ml under a nitrogen atmosphere.
Processing is performed at ~1900°C and a temperature increase rate of 10~800°C/ff1in.
つぎに、そのガラス繊維を得るには、得られた前記ガラ
スを窒素雰囲気下、 温度１１００〜１６００℃にて加
熱、熔融し、紡糸速度２０〜３０００ ｍ／ｗｉｎにて
紡糸して連続繊維を得る。Next, to obtain the glass fiber, the obtained glass is heated and melted at a temperature of 1,100 to 1,600°C in a nitrogen atmosphere, and then spun at a spinning speed of 20 to 3,000 m/win to obtain a continuous fiber. .
ガラス繊維の繊維径は、５〜１５０μ肩であるのが好ま
しい。繊維径がこれより小さいと、紡糸が困難であり、
一方、これを越えると強度が極端に低下し好ましくない
。The fiber diameter of the glass fibers is preferably 5 to 150 μm. If the fiber diameter is smaller than this, spinning is difficult;
On the other hand, if it exceeds this range, the strength will be extremely reduced, which is not preferable.
本発明ガラスの窒素含有率は、１〜１３．５重量％であ
るのが好ましい。窒素含有率が、１重景％未満であると
、窒素添加の効果がなく、１３゜５重量％を越えると結
晶化し好ましくない。The nitrogen content of the glass of the present invention is preferably 1 to 13.5% by weight. If the nitrogen content is less than 1% by weight, the nitrogen addition has no effect, and if it exceeds 13.5% by weight, crystallization may occur, which is undesirable.
窒素含有率の調整は、窒化物原料の添加割合により行な
う。The nitrogen content is adjusted by adjusting the addition ratio of the nitride raw material.
寒旗桝
つぎに、実施例により本発明をさらに具体的に説明する
。Next, the present invention will be explained in more detail with reference to Examples.
実施例Ｉ
Ｓ ｊｏｔ １８ｇ、Ｍｇ０ ２ｇ、Ａｌｔ０３２ｇお
よびＣａＯの原料としてＣａＣＯ３４５ｇを混合し、空
気中１５００°Ｃで２時間熔融した。得られた混合物を
冷却後ボールミルを用いて 約１０μｍに粉砕した。こ
れにＳｉ３Ｎ４１８ｇを加え、窒化ホウ素ルツボを用い
て、窒素雰囲気中 １７７０℃にて３０分溶融してオキ
シナイトライドガラスを得た。ついで１４１０℃まで降
温し、紡糸を行った。得られたガラス繊維径は直径２０
μ肩であった。Example I 18 g of S jot, 2 g of Mg0, 32 g of Alt0, and 45 g of CaCO3 as a raw material for CaO were mixed and melted in air at 1500°C for 2 hours. The resulting mixture was cooled and then ground to about 10 μm using a ball mill. 418 g of Si3N was added to this and melted in a nitrogen atmosphere at 1770° C. for 30 minutes using a boron nitride crucible to obtain oxynitride glass. Then, the temperature was lowered to 1410°C and spinning was performed. The obtained glass fiber diameter is 20
It was μ shoulder.
上記方法により得られたオキシナイトライドガラス繊維
を ＩＮ塩酸６０℃中にて６０分浸漬した後の走査型電
子顕微鏡写真（ＳＥＭ像）を第１図に示す。また、Ｅ−
ガラス繊維（５５ＳｉＯｙ、１５Ａ１ｔＣｈ、２０ Ｃ
ａ ０． ５ＢｔＯｓ、その他５重量％）に同様の処理
を行った結果を第２図に示す。第１図および第２図より
明らかなごとく、オキシナイトライドガラスはＥ−ガラ
ス繊維に比べると殆ど浸食が起こっておらず耐酸性に優
れていることがわかる。FIG. 1 shows a scanning electron micrograph (SEM image) of the oxynitride glass fiber obtained by the above method immersed in IN hydrochloric acid at 60° C. for 60 minutes. Also, E-
Glass fiber (55SiOy, 15A1tCh, 20C
a 0. 5BtOs and 5% by weight of others) were subjected to the same treatment and the results are shown in FIG. As is clear from FIGS. 1 and 2, oxynitride glass exhibits almost no corrosion and is superior in acid resistance compared to E-glass fiber.
また、実施例１と同様の組成で製造したオキシナイトラ
イドガラスを異なる繊維径に紡糸し、これらと、Ｅ−ガ
ラス繊維とを２Ｎ水酸化ナトリウム溶液中に浸し、９５
℃で６時間保持した時の繊維径の減少量を測定し、耐ア
ルカリ性の評価を行った。結果を第１表に示す。In addition, oxynitride glass manufactured with the same composition as in Example 1 was spun into different fiber diameters, and these and E-glass fibers were immersed in a 2N sodium hydroxide solution.
The alkali resistance was evaluated by measuring the amount of decrease in fiber diameter when the fibers were held at ℃ for 6 hours. The results are shown in Table 1.
第１表 但し、減少率は次のようにして算出した。Table 1 However, the reduction rate was calculated as follows.
実施例２
ＳｉＯｙ １０ｇ、ＭｇＯ２ｇ５Ａ１２０３３ｇおよび
Ｃａ ＣＯ３５５ｚを混合し、空気中１５００℃で２時
間溶融した。実施例Ｉと同様に混合物をボールミルにて
約ｌＯμ次に粉砕した。これに５ｔｓＮ４を２０ｇ加え
、窒化ホウ素ルツボを用いて窒素雰囲気中、１７９０℃
にて３０分溶融し、オキシナイトライドガラスを得た。Example 2 10g of SiOy, 12033g of MgO2g5A and 555z of CaCO3 were mixed and melted in air at 1500°C for 2 hours. As in Example I, the mixture was ground to approximately lOμ in a ball mill. Add 20g of 5tsN4 to this, and use a boron nitride crucible at 1790°C in a nitrogen atmosphere.
The mixture was melted for 30 minutes to obtain oxynitride glass.
ついで、１４２０℃に降温し紡糸を行った。得られたガ
ラスは繊維径２０〜４０μｌであった。実施例１と同様
に試験を行った結果、Ｅ−ガラスに比べ蒼しく耐酸性お
よび耐アルカリ性のあることがわかった。Then, the temperature was lowered to 1420°C and spinning was performed. The obtained glass had a fiber diameter of 20 to 40 μl. As a result of testing in the same manner as in Example 1, it was found that the glass was blue in color and had acid resistance and alkali resistance compared to E-glass.
発明の効果
本発明のガラスは、従来のガラスに比べ極めて高い耐薬
品性（耐酸性、耐アルカリ性）を有すると共に高強度を
備え、各種プラスチック、セメント用の安価な強化用繊
維として極めて優れている。Effects of the Invention The glass of the present invention has extremely high chemical resistance (acid resistance, alkali resistance) and high strength compared to conventional glass, and is extremely excellent as an inexpensive reinforcing fiber for various plastics and cement. .
第１図゛および第２図は、本発明ガラスより得られた繊
維および従来のＥ−ガラス繊維を酸性液で処理した後の
繊維の表面形状を示す走査型電子顕微鏡写真である。FIGS. 1 and 2 are scanning electron micrographs showing the surface morphology of fibers obtained from the glass of the present invention and conventional E-glass fibers after they were treated with an acidic solution.
Claims (1)
＿３Ｎ＿４ １〜４５モル％、ＣａＯ ３０〜７６モル
％を含有し、さらにＭｇＯ ０〜１０モル％、Ａｌ＿２
Ｏ＿３ ０〜２５モル％を含有し、（ＳｉＯ＿２＋Ｓｉ
＿３Ｎ＿４）の値が２５〜５０モル％であり、前記５つ
の成分の合計が８５〜１００モル％であることを特徴と
する耐薬品性ガラス。(1) Main component: SiO_2 5-60 mol%, Si
_3N_4 1 to 45 mol%, CaO 30 to 76 mol%, further MgO 0 to 10 mol%, Al_2
Contains 0 to 25 mol% of O_3, (SiO_2+Si
A chemical-resistant glass characterized in that the value of _3N_4) is 25 to 50 mol%, and the total of the five components is 85 to 100 mol%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13285487A JPS63297238A (en) | 1987-05-28 | 1987-05-28 | Chemical-resistant glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13285487A JPS63297238A (en) | 1987-05-28 | 1987-05-28 | Chemical-resistant glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63297238A true JPS63297238A (en) | 1988-12-05 |
Family
ID=15091075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13285487A Pending JPS63297238A (en) | 1987-05-28 | 1987-05-28 | Chemical-resistant glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63297238A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293105A2 (en) * | 1987-05-28 | 1988-11-30 | Shimadzu Corporation | Oxynitride glass and fibers thereof |
| JPH02217332A (en) * | 1989-02-17 | 1990-08-30 | Shimadzu Corp | Oxynitride glass and glass fiber thereof |
| JPH03183641A (en) * | 1989-10-18 | 1991-08-09 | Ceramiques & Composites | Oxygen-nitrogen glass composition, its presursor and vitreous ceramic and application thereof to preparation of composite material |
-
1987
- 1987-05-28 JP JP13285487A patent/JPS63297238A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293105A2 (en) * | 1987-05-28 | 1988-11-30 | Shimadzu Corporation | Oxynitride glass and fibers thereof |
| JPH02217332A (en) * | 1989-02-17 | 1990-08-30 | Shimadzu Corp | Oxynitride glass and glass fiber thereof |
| JPH0579617B2 (en) * | 1989-02-17 | 1993-11-04 | Shimadzu Corp | |
| JPH03183641A (en) * | 1989-10-18 | 1991-08-09 | Ceramiques & Composites | Oxygen-nitrogen glass composition, its presursor and vitreous ceramic and application thereof to preparation of composite material |
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