JPH02307855A - Calcium silicate composition - Google Patents
Calcium silicate compositionInfo
- Publication number
- JPH02307855A JPH02307855A JP12681089A JP12681089A JPH02307855A JP H02307855 A JPH02307855 A JP H02307855A JP 12681089 A JP12681089 A JP 12681089A JP 12681089 A JP12681089 A JP 12681089A JP H02307855 A JPH02307855 A JP H02307855A
- Authority
- JP
- Japan
- Prior art keywords
- calcium silicate
- molded body
- bending strength
- present
- toughness
- 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.)
- Granted
Links
- 239000000378 calcium silicate Substances 0.000 title claims abstract description 57
- 229910052918 calcium silicate Inorganic materials 0.000 title claims abstract description 57
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000000203 mixture Substances 0.000 title claims description 18
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 229920002978 Vinylon Polymers 0.000 claims abstract description 21
- 238000005452 bending Methods 0.000 abstract description 22
- 238000002156 mixing Methods 0.000 abstract description 7
- 239000004566 building material Substances 0.000 abstract description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 2
- 239000012188 paraffin wax Substances 0.000 abstract description 2
- 239000000454 talc Substances 0.000 abstract description 2
- 229910052623 talc Inorganic materials 0.000 abstract description 2
- 235000012241 calcium silicate Nutrition 0.000 description 47
- 238000000034 method Methods 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000002734 clay mineral Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910000000 metal hydroxide Inorganic materials 0.000 description 4
- 150000004692 metal hydroxides Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- -1 talc Chemical compound 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- VCNTUJWBXWAWEJ-UHFFFAOYSA-J aluminum;sodium;dicarbonate Chemical compound [Na+].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O VCNTUJWBXWAWEJ-UHFFFAOYSA-J 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- UGGQKDBXXFIWJD-UHFFFAOYSA-N calcium;dihydroxy(oxo)silane;hydrate Chemical compound O.[Ca].O[Si](O)=O UGGQKDBXXFIWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 125000004966 cyanoalkyl group Chemical group 0.000 description 1
- 229910001647 dawsonite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229940031958 magnesium carbonate hydroxide Drugs 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052903 pyrophyllite Inorganic materials 0.000 description 1
- UUCCCPNEFXQJEL-UHFFFAOYSA-L strontium dihydroxide Chemical compound [OH-].[OH-].[Sr+2] UUCCCPNEFXQJEL-UHFFFAOYSA-L 0.000 description 1
- 229910001866 strontium hydroxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
- C04B28/186—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step
- C04B28/188—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step the Ca-silicates being present in the starting mixture
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、優れた機械的特性を有する建築材料や断熱材
料、保温材料の成形原料として好適な珪酸カルシウム組
成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a calcium silicate composition that has excellent mechanical properties and is suitable as a raw material for forming building materials, heat insulating materials, and heat retaining materials.
珪酸カルシウムの成形体は断熱材料、保温材料あるいは
建築物の内外装材料等に広（使用されている。一般に、
これらの材料には、優れた曲げ強度や曲げ強度を比重の
２乗で除した比強度そして靭性等が要求されている。Calcium silicate molded bodies are widely used as insulation materials, heat retention materials, and interior and exterior materials for buildings. Generally,
These materials are required to have excellent bending strength, specific strength obtained by dividing the bending strength by the square of the specific gravity, and toughness.
優れた比強度を有する材料としては、ジャイロライＦ型
珪酸カルシウムの成形体が知られている（４Ｉ開昭６０
−５１６５１号公報）が、この成形体も曲げ強度や靭性
が満足のいくものでは無く、改良の余地が残されている
。As a material with excellent specific strength, a molded body of Gyrolyte F type calcium silicate is known (4I, 1986).
However, this molded product also has unsatisfactory bending strength and toughness, and there is still room for improvement.
本発明者らは、上記した珪酸カルシウム成形体の曲げ強
度および靭性の向上を目的として、鋭意研究を重ねてき
た。The present inventors have conducted extensive research with the aim of improving the bending strength and toughness of the above-mentioned calcium silicate molded bodies.
その結果、珪酸カルシウムに特定のビニロン繊維を添加
してなる珪酸カルシウム組成物を成形して得た成形体が
、上記した目的を達成することを見出し、本発明を完成
させるに至った。As a result, it was discovered that a molded article obtained by molding a calcium silicate composition obtained by adding a specific vinylon fiber to calcium silicate achieves the above-mentioned object, and the present invention was completed.
即ち、本発明は、
（−珪酸カルシウム １００１［量部
及び
（１））長さが１．５〜４０ｍで直径が０．１〜５０Ｉ
ｔＩＩＬであるビニロン繊維 ０．１〜１０重量部より
なることを特徴とする珪酸カルシウム組成物である。That is, the present invention provides (-calcium silicate 1001 [parts and (1)) with a length of 1.5 to 40 m and a diameter of 0.1 to 50 I.
This is a calcium silicate composition characterized by comprising 0.1 to 10 parts by weight of vinylon fiber which is tIIL.
本発明で使用される珪酸カルシウムは、トベルモライト
、ゾノトライト等の公知の珪酸カルシウムが何ら制限な
く採用される。就中、特開昭５４−９３６９８号公報に
記載された下記一般式σ）
２Ｃａ０・３Ｓｉ０２ ・ｎＳ１０２−ｍ）ｌ、ｏ
σ）（但し、ｎ及びｍは正の数で、ｈはｏ、 ｉ〜１゜
である。）
で示される花弁状の珪酸カルシウムが好適である。上記
の花弁状の珪酸カルシウムは、ジャイロライト屋の結晶
構造を有する。５ｉｏ２／ＣａＯのモル比は特に１６〜
λ２の範囲である。As the calcium silicate used in the present invention, known calcium silicates such as tobermolite and xonotlite can be used without any restriction. In particular, the following general formula σ) 2Ca0.3Si02 .nS102-m) l, o described in JP-A No. 54-93698
σ) (where n and m are positive numbers, and h is o, i~1°) is preferred. The petal-shaped calcium silicate described above has a gyrolyte crystal structure. The molar ratio of 5io2/CaO is particularly from 16 to
It is in the range of λ2.
ことが好ましい。花弁の大きさは、一般に長手方向の平
均直径が０１１〜３０μｍであり、厚みがｏ、 ｏ ｏ
ｓ〜０．１μｍの範囲である。It is preferable. The size of petals is generally 0.11 to 30 μm in average diameter in the longitudinal direction, and thickness of o, o o.
It is in the range of s to 0.1 μm.
珪酸カルシウムの平均粒子径は、特に制限されるもので
はないが、本発明の珪酸カルシウム組成物を成形して得
られる成形体の機械的特性を勘案すると、一般に平均粒
子径は小さい程好ましく、通常は１０〜３５μｍの範囲
のものが使用される。The average particle size of calcium silicate is not particularly limited, but in consideration of the mechanical properties of the molded product obtained by molding the calcium silicate composition of the present invention, it is generally preferable that the average particle size is smaller. is used in the range of 10 to 35 μm.
本発明で使用されるビニロン繊維は、長さが１．５〜４
．Ｏｎで直径が１〜５０μｍであれば公知のビニロン繊
維が何ら制限なく使用し得る。本発明においては、特定
の長さ及び直径のビニロン繊維を用いることが特徴であ
り、ビニロン繊維以外の繊維や、ビニロン繊維であって
も上記した特定の長さと直径を有するものでない場合に
は、得られる珪酸カルシウム成形体の曲げ強度、比強度
及び靭性を十分に向上させることができない。The vinylon fiber used in the present invention has a length of 1.5 to 4
．． Known vinylon fibers can be used without any restrictions as long as they have a diameter of 1 to 50 μm. The present invention is characterized by the use of vinylon fibers of a specific length and diameter, and when fibers other than vinylon fibers or even vinylon fibers do not have the above-mentioned specific lengths and diameters, The bending strength, specific strength, and toughness of the obtained calcium silicate molded product cannot be sufficiently improved.
本発明の珪酸カルシウム組成物を構成する各成分の配合
割合は、珪酸カルシウム１００重量部に対して、ビニロ
ン繊維が０．１〜１０重量部の範囲でなければならず、
特に、３〜６重量部であることが好ましい。、ビニロン
繊維の配合割合が少ない場合には、充分な曲げ強度や靭
性・が得られず、逆に多すぎる場合には、珪酸カルシウ
ムとビニロン繊維との混合状態が急くなるために、好ま
しくない。The blending ratio of each component constituting the calcium silicate composition of the present invention should be in the range of 0.1 to 10 parts by weight of vinylon fiber per 100 parts by weight of calcium silicate;
In particular, it is preferably 3 to 6 parts by weight. If the blending ratio of vinylon fibers is too low, sufficient bending strength and toughness cannot be obtained, and on the other hand, if the blending ratio is too high, the mixture of calcium silicate and vinylon fibers becomes too rapid, which is not preferable.
本発明に於いて、前記した珪酸カルシウムおよびビニロ
ン繊維に加えて他の成分を添加することは、必要に応じ
て実施することができる。例えば、水酸化マグネシウム
、水酸化カルシウム、水酸化ストロンチウム、水酸化バ
リウム、塩基性炭酸マグネシウム、水酸化アルミニウム
等の金属水酸化物：タルク、パイロフィライト、クレー
、マイカ、ドーソナイト、カオリン等の粘土鉱物；パラ
フィン、タール、ポリエチレン、ポリプロピレン、ゴム
、ステアリン酸カルシウム、ステアリン醗マグネシウム
等の有機質混和剤ニジメチルポリシロキサンおよびその
メチル基の一部を水素原子、フェニル基、アルキル基、
メルカプト基、ビニル基、シアノアルキル基、フルオロ
アルキル基などで置換したポリオルガノシロキサンを主
成分とするシリコーンオイル、シリコーンゴム又はシリ
コーン樹脂ｌｈ？） ； 上記シリコーンＷ脂塗料とア
ル牛ド樹脂、メラミン樹脂、エポキシ樹脂などと縮合し
て得られる変性シリコーン樹脂類を挙げることができる
。In the present invention, other components may be added in addition to the above-mentioned calcium silicate and vinylon fibers, if necessary. For example, metal hydroxides such as magnesium hydroxide, calcium hydroxide, strontium hydroxide, barium hydroxide, basic magnesium carbonate, and aluminum hydroxide; clay minerals such as talc, pyrophyllite, clay, mica, dawsonite, and kaolin. ; Organic admixtures such as paraffin, tar, polyethylene, polypropylene, rubber, calcium stearate, and magnesium stearate.
Silicone oil, silicone rubber or silicone resin whose main component is polyorganosiloxane substituted with a mercapto group, vinyl group, cyanoalkyl group, fluoroalkyl group, etc. ) ; Examples include modified silicone resins obtained by condensing the silicone W resin paint with alkaline resin, melamine resin, epoxy resin, and the like.
金属水酸化物及び粘土鉱物は、′Ｎられる珪酸カルシウ
ム成形体の曲げ強度、弾性係数を向上させるのに効果的
であり、通常、珪酸カルシウム１００重量部に対して、
夫々、１〜５０重量部の割合で混合することが好ましい
。Metal hydroxides and clay minerals are effective in improving the bending strength and elastic modulus of the calcium silicate molded product, and are usually used in amounts of 100 parts by weight of calcium silicate.
It is preferable to mix them in a proportion of 1 to 50 parts by weight, respectively.
金属水酸化物及び粘土鉱物の平均粒子径は、特に制限さ
れるものではないが、一般には０１〜５０μｍであるこ
とが得られる成形体の曲げ強度や弾性係数が大となるた
めに好ましい。The average particle size of the metal hydroxide and clay mineral is not particularly limited, but it is generally preferable that it is 01 to 50 μm because the resulting molded product will have a large bending strength and elastic modulus.
また、有機質混和剤は、得られる珪酸カルシウム成形体
の加工性を向上させるのに、効果的であり、通常、珪酸
カルシウム１００電蝕部に対して、０．５〜８重量部の
割合で混合することが好ましい。In addition, organic admixtures are effective in improving the processability of the resulting calcium silicate molded bodies, and are usually mixed at a ratio of 0.5 to 8 parts by weight per 100 parts of calcium silicate. It is preferable to do so.
さらに、シリコーンオイル、シリコーンゴム、シリコー
ン樹脂塗料は、得られる珪酸カルシウム成形体の耐水性
、耐薬品性、耐候性、表面硬度を向上させるのに効果的
であり、通常、珪酸カルシウムｔｏｏｘｔｔ部に対して
１．５〜１５重量部の割合で混合することが好ましい。Furthermore, silicone oil, silicone rubber, and silicone resin paints are effective in improving the water resistance, chemical resistance, weather resistance, and surface hardness of the obtained calcium silicate molded product, and they are usually used to improve the calcium silicate tooxtt part. It is preferable to mix in a proportion of 1.5 to 15 parts by weight.
本発明の珪酸カルシウム組成物を成形して珪酸カルシウ
ム成形体を製造する方法は、特に制限されるものではな
く、湿式圧縮成形法、乾式圧縮成形法などの公知の方法
が用いられる。即ち、本発明の珪酸カルシウム組成物と
水とを混合した後、金製プレス成形機により５０〜１０
，０００％の圧力で脱水成形した後、該成形体を乾燥す
る方法、或いは、本発明の珪酸力ルシワム組成物を直接
金製プレス成形機によりｓ Ｏ−１０，０００％の圧力
で成形する方法などである。乾式圧縮成形法では珪酸カ
ルシウム１００重量部に対して６〜１２重量部の水を添
加することが好ましい。The method for producing a calcium silicate molded article by molding the calcium silicate composition of the present invention is not particularly limited, and known methods such as wet compression molding and dry compression molding can be used. That is, after mixing the calcium silicate composition of the present invention and water, a metal press molding machine is used to mold the calcium silicate composition of the present invention and water.
A method of dehydrating and molding at a pressure of 1,000% and then drying the molded body, or a method of directly molding the silicate composition of the present invention at a pressure of sO-10,000% using a metal press molding machine. etc. In the dry compression molding method, it is preferable to add 6 to 12 parts by weight of water to 100 parts by weight of calcium silicate.
本発明の珪酸カルシウム組成物は、ビニロン繊維を混合
して使用しているために得られる成形体の表面平滑性が
幾分低下することがある。このような場合には、ビニロ
ン繊維を含んだ成形体の表面に、本発明で使用される珪
酸カルシウムの薄層を形成させることが好ましい。薄層
の厚みは０．０５〜１０ ｔｍの範囲であれば十分であ
る。このような薄層を形成させる方法としては、次の方
法が好適である。Since the calcium silicate composition of the present invention uses a mixture of vinylon fibers, the surface smoothness of the obtained molded product may be somewhat reduced. In such cases, it is preferable to form a thin layer of calcium silicate used in the present invention on the surface of the molded article containing vinylon fibers. A thickness of the thin layer ranging from 0.05 to 10 tm is sufficient. The following method is suitable for forming such a thin layer.
本発明の珪酸カルシウム組成物を混合して金製プレス機
により０．１〜３０１の圧力で基体を成形し、次いで、
該基体の表面に本発明で使用される珪酸カルシウムを均
一に積層させて金製プレス機により５０〜１０．０００
’ｆｉの圧力で加圧する方法が用いられる。The calcium silicate composition of the present invention is mixed and molded into a substrate using a metal press at a pressure of 0.1 to 30 mm, and then
Calcium silicate used in the present invention is uniformly laminated on the surface of the substrate, and then 50 to 10,000
A method of applying pressure at a pressure of 'fi is used.
本発明の珪酸カルシウム組成物を成形して得た珪酸カル
シウム成形体は、曲げ強度、比強度、靭性ともに十分に
満足できるものである。即ち、珪酸カルシウム単独の成
形体では、曲げ強度、靭性が不充分であるが、本発明の
ように、珪酸カルシウムにビニロン繊維を混合すること
により、得られる成形体は、曲げ強度、比強度、靭性が
向上する。The calcium silicate molded article obtained by molding the calcium silicate composition of the present invention has sufficiently satisfactory bending strength, specific strength, and toughness. That is, a molded body made of calcium silicate alone has insufficient bending strength and toughness, but by mixing vinylon fiber with calcium silicate as in the present invention, the molded body obtained has high bending strength, specific strength, Improves toughness.
従って、本発明の珪酸カルシウム組成物は、優れた機械
的特性が要求される建築物の内外装材料、断熱材料など
の成形用原料として好適に使用し得る。また、上記の用
途のほか、各穐ゴムやプラスチック等の添加剤や充填材
としても用いることができる。Therefore, the calcium silicate composition of the present invention can be suitably used as a raw material for forming interior and exterior materials for buildings, heat insulating materials, etc., which require excellent mechanical properties. In addition to the above-mentioned uses, it can also be used as an additive or filler for various rubbers, plastics, etc.
以下に、本発明を更に具体的に説明するために、実施例
および比較例を示すが、本発明は、これらの実施例に限
定されるものではない。EXAMPLES Below, Examples and Comparative Examples are shown to further specifically explain the present invention, but the present invention is not limited to these Examples.
尚、実施例および比較例に於ける各試験は、以下の方法
で行った。In addition, each test in Examples and Comparative Examples was conducted by the following method.
（１） 曲げ強度
気乾状態の供試体を３点曲げ法により、スパン８０削、
供試体のｌＩ２０ｍ、厚さ３ｎ、荷重速度を０．５ｍ／
分として曲げ強度σｂを測定した。(1) Bending strength The air-dried specimen was subjected to a three-point bending method, with a span of 80
The lI of the specimen is 20m, the thickness is 3n, and the loading speed is 0.5m/
The bending strength σb was measured as a fraction.
（２） 曲げタフネス
（１）と同様にして曲げ試験を行い、曲げ荷重−たわみ
応答曲線の最大荷重点までの積分値を算出した。(2) Bending toughness A bending test was conducted in the same manner as in (1), and the integral value of the bending load-deflection response curve up to the maximum load point was calculated.
（３） 比強度
気乾比ｘｐの供試体を上記曲げ試験で曲げ強度σｂを測
定し、下記の式により求めた。(3) Specific strength The bending strength σb of the specimen having the air-dry ratio xp was measured in the above bending test, and was determined by the following formula.
σｂ
（４） 表面硬度
２Ｂ〜９Ｈの硬度の鉛筆で順に供試体の表面なひつかき
、傷がつかない最大の硬度を表面硬度とした。σb (4) Surface hardness: The maximum hardness at which the surface of the specimen was not scratched or scratched with a pencil having a hardness of 2B to 9H was defined as the surface hardness.
Ｇ）吸水率
（すと同じ供試体の気乾重量Ｗｏを測定した後、２０℃
の水中に２４時間該供試体を浸漬し、吸水後の重量Ｗｌ
を測定して下記の式により吸水率を計算した。G) Water absorption rate (after measuring the air-dry weight Wo of the same specimen, at 20°C
The specimen was immersed in water for 24 hours, and the weight after water absorption was
was measured and the water absorption rate was calculated using the following formula.
実施例１
珪酸カルシウムとして、ｚｃａｏ・λ５８１０．・１１
Ｂ、Ｏで示され、ジャイルライト型の結晶構造を有する
花弁状珪酸カルシウム粉体（平均粒子径２０μｍ、花弁
の長手方向の平均直４１２μ亀、花弁の厚み０．１μ講
）を１００重量部、ビニロン繊維として長さが３戴、直
径が１６μ電の短繊維３．５１址部を混合し、金製プレ
ス機により５００１の圧力でプレス成形をした後、１８
０℃で２０分間加熱処理をして珪酸カルシウム成形体を
得た。得られた成形体の比重は、０．８９１１１０ｅ、
曲げ強度は２９ ｓ ｋｉｔ／ｃｄ、比強度３７２、曲
げタフネス１７．７−！、儂であった。Example 1 As calcium silicate, zcao.λ5810.・11
100 parts by weight of petal-shaped calcium silicate powder (average particle diameter 20 μm, average diameter in the longitudinal direction of the petal 412 μm, petal thickness 0.1 μm), which is denoted by B and O and has a gyrite crystal structure; As vinylon fibers, 3.51 mm of short fibers with a length of 3 mm and a diameter of 16 μm were mixed and press-molded with a pressure of 5,001 mm using a metal press machine.
A calcium silicate molded body was obtained by heat treatment at 0°C for 20 minutes. The specific gravity of the obtained molded body is 0.891110e,
The bending strength is 29 s kit/cd, the specific strength is 372, and the bending toughness is 17.7-! , it was me.
実施例２〜５
実施例１で用〜・たビニロン繊維を、第１表に示した長
さ、直径にかえた以外は、実施例１と同様にして、珪酸
カルシウム成形体を得た。得られた成形体の試験結果を
第１表に示した。Examples 2 to 5 Calcium silicate molded bodies were obtained in the same manner as in Example 1, except that the length and diameter of the vinylon fibers used in Example 1 were changed to those shown in Table 1. Table 1 shows the test results of the obtained molded bodies.
比較例１〜３
実施例１で用いたビニロン繊維を使用しないか又は繊維
長が１簡及び６關のビニロン繊維を用いたこと以外は、
実施例１と同様にして珪酸カルシウム成形体を得た。得
られた成形体の試験結果を１４１表に示した。Comparative Examples 1 to 3 The vinylon fibers used in Example 1 were not used, or the vinylon fibers with fiber lengths of 1 and 6 were used.
A calcium silicate molded body was obtained in the same manner as in Example 1. The test results of the obtained molded bodies are shown in Table 141.
実施例６〜８
実施例１で用いた珪酸カルシウム組成物に、第２表に示
した割合で金属水酸化物又は粘土鉱物を混和した以外は
実施例１と同様にして珪酸カルシウム成形体を得た。得
られた成形体の試験結果を第２表に示した。Examples 6 to 8 Calcium silicate molded bodies were obtained in the same manner as in Example 1, except that metal hydroxide or clay minerals were mixed into the calcium silicate composition used in Example 1 in the proportions shown in Table 2. Ta. The test results of the obtained molded bodies are shown in Table 2.
実施例９〜１０
珪酸カルシウムとして、第３表に示したジャイロライト
型珪酸カルシウムを用いた他は実施例１と同様にして珪
酸カルシウム成形体を得た。得られた成形体の物性は第
３表に示したとおりであった。Examples 9 to 10 Calcium silicate molded bodies were obtained in the same manner as in Example 1, except that the gyrolite type calcium silicate shown in Table 3 was used as the calcium silicate. The physical properties of the obtained molded product were as shown in Table 3.
Claims (1)
ｍであるビニロン繊維０．１〜１０重量部 よりなることを特徴とする珪酸カルシウム組成物。(1) (a) 100 parts by weight of calcium silicate and (b) a length of 1.5 to 4.0 mm and a diameter of 1 to 50 μ
1. A calcium silicate composition comprising 0.1 to 10 parts by weight of vinylon fiber of m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12681089A JP2624329B2 (en) | 1989-05-22 | 1989-05-22 | Calcium silicate composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12681089A JP2624329B2 (en) | 1989-05-22 | 1989-05-22 | Calcium silicate composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02307855A true JPH02307855A (en) | 1990-12-21 |
| JP2624329B2 JP2624329B2 (en) | 1997-06-25 |
Family
ID=14944519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12681089A Expired - Lifetime JP2624329B2 (en) | 1989-05-22 | 1989-05-22 | Calcium silicate composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2624329B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0597498A (en) * | 1991-10-04 | 1993-04-20 | Nichias Corp | Calcium silicate-based refractory coated plate and its production |
| JPH05124877A (en) * | 1991-11-01 | 1993-05-21 | Nichias Corp | Calcium silicate refractory coated plate and its production |
-
1989
- 1989-05-22 JP JP12681089A patent/JP2624329B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0597498A (en) * | 1991-10-04 | 1993-04-20 | Nichias Corp | Calcium silicate-based refractory coated plate and its production |
| JPH05124877A (en) * | 1991-11-01 | 1993-05-21 | Nichias Corp | Calcium silicate refractory coated plate and its production |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2624329B2 (en) | 1997-06-25 |
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