JPH0361628B2 - - Google Patents
Info
- Publication number
- JPH0361628B2 JPH0361628B2 JP60198382A JP19838285A JPH0361628B2 JP H0361628 B2 JPH0361628 B2 JP H0361628B2 JP 60198382 A JP60198382 A JP 60198382A JP 19838285 A JP19838285 A JP 19838285A JP H0361628 B2 JPH0361628 B2 JP H0361628B2
- Authority
- JP
- Japan
- Prior art keywords
- inorganic
- board
- filler
- weight
- powder
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 22
- 239000000945 filler Substances 0.000 claims description 15
- 229920000098 polyolefin Polymers 0.000 claims description 14
- 239000010440 gypsum Substances 0.000 claims description 9
- 229910052602 gypsum Inorganic materials 0.000 claims description 9
- 239000011342 resin composition Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000378 calcium silicate Substances 0.000 claims description 4
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 229910052570 clay Inorganic materials 0.000 claims description 4
- 239000011256 inorganic filler Substances 0.000 claims description 4
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000012766 organic filler Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000010456 wollastonite Substances 0.000 claims description 3
- 229910052882 wollastonite Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 239000010454 slate Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 description 7
- -1 polypropylene Polymers 0.000 description 7
- 239000011491 glass wool Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 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
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920004889 linear high-density polyethylene Polymers 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 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
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Description
［産業上の利用分野］
この発明は、無機質板材に関し、さらに詳しく
は、無機物質を主成分として形成された建材とし
ての無機質板の表面に、延伸した特定厚みの樹脂
フイルムを貼付してなる、たとえば防湿性、耐候
性等が良好で、廃棄後に焼却処理しても公害を生
じない無機質板材に関する。
［従来の技術およびその問題点］
従来、住居等のたとえば内壁体あるいは天井体
は、支柱間に断熱材としてグラスウールを充填
し、室内側に合板、石膏ボード、壁紙あるいは化
粧板等をこの順に張設する。
しかしながら、前記合板、石膏ボード、壁紙等
は防水性を備えていないので、室内の水分がこれ
らを透過してグラスウールに至る。吸水ないし吸
湿したグラスウールは、その見掛け上の体積が減
少して断熱効果が著しく低下する。
グラスウールが吸水ないし吸湿しないように、
塩化ビニール、ポリプロピレン、高密度ポリエチ
レン、低密度ポリエチレン等からなるフイルム、
シート等の素材をグラスウールに張設する工夫が
あるものの、このような素材はいずれも透湿度が
未だ十分ではない。もつとも、前記素材の厚みを
たとえば100μmよりも大きくすると、ある程度満
足す可き透湿度が得られるであろうが、コストが
高くなるし、コスト低減のために厚みをたとえば
30μm程度に小さくすると透湿度が大きくなつて
防湿性の機能がなくなる。
それに、塩化ビニールは、燃焼すると有毒ガス
を発生するので、家屋火災時に、安全な消火活動
を営むことができないし、塩化ビニールを安易に
焼却炉で焼却すると、燃焼カロリーが大きいの
で、焼却炉を損傷する恐れがある。
この発明は前記事情に基づいてなされたもので
ある。
すなわち、この発明の目的は、樹脂フイルムを
素材としながらも、優れた防湿性を有する建築物
用の建材を提供することにある。
さらにこの発明の目的は、特定の樹脂組成物か
らなる特定厚みの樹脂フイルムと無機物質を主成
分とする無機質板とを備えた、優れた防湿性を有
する無機質板材を提供することにある。
［前記問題点を解決するための手段］
前記問題点を解決するためのこの発明の概要
は、無機物質を主成分とする無機質板に、ポリオ
レフイン40〜75重量％と充填材60〜25重量％とを
有する樹脂組成物から成形した厚み50〜100μmの
延伸フイルムを貼付してなることを特徴とする無
機質板材である。
前記ポリオレフインは、たとえばポリエチレン
たとえば高圧法ポリエチレン、中圧法ポリエチレ
ン、低圧法ポリエチレン、直鎖状低密度ポリエチ
レン、高密度ポリエチレン、ポリプロピレン等を
好適に使用することができる。これらの中でも好
ましいのは、直鎖状低密度ポリエチレン、高密度
ポリエチレン、ポリプロピレンである。
前記充填材として、無機質充填材および有機質
充填材のいずれをも使用することができる。前記
無機質充填材の粒径としては、0.01〜30μmのも
のを好適に使用することができ、たとえば、炭酸
カルシウム、炭酸マグシウム、ドロマイト等の炭
酸塩、硫酸カルシウム、硫酸マグネシウム、硫酸
バリウム等の硫酸塩、タルク、クレー、モンモリ
ロナイト、ワラストナイト、軽石粉、マイカ、ホ
ワイトカーボン、アスベスト、ガラス繊維、ガラ
ス粉末、酸化チタン、酸化亜鉛、酸化鉄、酸化マ
グネシウム、水酸化アルミニウム、水酸化マグネ
シウム、ケイ酸カルシウム、鉄粉、亜鉛粉、アル
ミニウム粉等が挙げられる。
これらの中でも酸化チタンは白色度、インペイ
性を向上させるのに好適であり、その他の充填材
と併用して使用するのが好ましい。
また、酸化チタンと併用して使用する充填材と
して炭酸カルシウム、マイカ、クレー等が好適で
ある。
酸化チタンの粒径は、0.01〜1μmが好ましく、
その他の充填材の粒径は0.05〜20μmのものが好
ましい。
また、前記有機質充填材としては、木粉等を好
適に使用することができる。木粉の粒径は、60〜
325メツシユ、好ましくは80〜200メツシユのもの
が好適に使用される。
これらの充填材をポリオレフイン中に分散配合
しておくと、防湿性に優れた延伸フイルムに成形
することができる。
前記樹脂組成物は、前記ポリオレフインと前記
充填材とを配合することにより得られる。
その配合割合としては、前記ポリオレフインが
75〜40重量％、好ましくは60〜40重量％、前記充
填材が25〜60重量％、好ましくは40〜60重量％で
ある。（この％はポリオレフインと充填材との合
計を100とした場合に関する。）。
前記ポリオレフインの配合割合が75重量％より
も多くなると、防湿性が低下することがあり、ま
た40重量％よりも小さくなると、フイルム加工
性、耐湿強さ、耐候性、耐熱性等が悪くなる。
前記配合の方法、および手段は、通常のものを
使用することができ、たとえば、リボンブレン
ダ、タンブルミキサー、ヘンシエルミキサー等の
混合機、また、オープンロール、バンバリミキサ
ー、単軸スクリユー押出し機、２軸押出し機、単
軸往復動スクリユー混練機等を使用することによ
り前記樹脂組成物を得ることができる。さらに、
前記ポリオレフインと前記充填材とでマスター樹
脂組成物を製造し、このマスター樹脂組成物を前
記ポリオレフインで希釈するマスターバツチ法に
よつても良い。
前記樹脂組成物は、延伸フイルムに成形加工さ
れる。フイルムへの加工は、Ｔダイ法、インフレ
ーシヨン法、カレンダー法等のいずれによつても
良い。また、延伸は、一軸延伸であつても、二軸
延伸であつても良い。二軸延伸の場合、テンター
方式、チユーブ方式のいずれでも良い。延伸倍率
は、特に制限がないが、通常、0.01以上有れば良
い。
また、延伸フイルムの厚みは、50〜100μmであ
る。
この発明に係る無機質板材は、前記樹脂組成物
を成形加工して得た延伸フイルムを、無機物質を
主成分とする無機質板の表面に、貼付してなるも
のである。
前記無機物質を主成分とする無機質板は、特
に、無機物質を主成分として形成されると共に多
孔性であつて断熱性、吸音性、衝撃緩衝性等に優
れたボード類を言い、具体的にはたとえば石綿ス
レート、石膏ボード、パルプセメント板、木毛セ
メント板、ケイ酸カルシウムボード等が挙げられ
る。これらの中でも好ましいのは石膏ボードであ
る。石膏ボードは建築物の内装壁材、天井材とし
て好適であるが、多孔質のために吸湿性である。
したがつて、この延伸フイルムと前記石膏ボード
とを組合せると、建材として優れ、かつ防湿性の
ある新規な石膏ボードを得ることができるからで
ある。
前記無機質板材の表面への前記延伸フイルムの
貼付は、接着剤で行なうのが好ましい。鋲打ち、
タツカー打ち等により、貼付しても良いのである
が、このような貼付手段によると、延伸フイルム
に穴が開くこととなつて、延伸フイルムの防湿性
の効果を十分に発揮することができないことがあ
る。
この無機質板材の、前記延伸フイルムを貼付し
た面とは反対側の面には、この無機質板材の用途
に応じて、たとえば壁紙、化粧板等を貼付しても
良い。
この発明に係る無機質板材は、建築物、家屋等
の内装壁体、天井体として好適に使用することが
できる。
［発明の効果］
この発明によると、ポリオレフインと充填材と
を特定の配合割合で配合して得た延伸フイルム
を、無機物質を主成分とする無機質板の表面に貼
付しているので、無機質板が本来有していた断熱
性、吸音性、衝撃緩衝性等を損なうことなく、防
湿性の優れた、建築物の壁体、天井体に好適な無
機質板材を提供することができる。そして、この
無機質板材は、壁体、天井内に充填したグラスウ
ールの吸水、吸湿を防止して、その断熱効果、防
音効果の維持を図ることができる。
さらに、この無機質板材における延伸フイルム
は、燃焼カロリーが高くなく、また燃焼時に有毒
ガスを発生しないので、易焼却性であり、廃棄物
公害のおそれもない。
［実施例］
次にこの発明の実施例を示してこの発明をさら
に具体的に説明する。
実施例１〜14、比較例１〜14
第１表に示す種類および配合量のポリオレフイ
ンと充填材と、前記ポリオレフインおよび充填材
の合計100重量部（比較例にあつてはポリオレフ
イン100重量部）に対してステアリン酸カルシウ
ム1.0重量部と、安定剤（イルガノツクス1010）
0.5重量部とを配合して得たペレツトを用いて、
50ミリインフレーシヨン成形機で成形温度200〜
240℃で、第１表に示す膜厚のインフレーシヨン
フイルムを作成した。なお、このインフレーシヨ
ンフイルムの成形時に延伸倍率1.1で延伸がなさ
れた。
次いで、前記インフレーシヨンフイルムの両端
の耳を切断し、第１表に示す膜厚の延伸フイルム
を作成した。
この延伸フイルムを、石膏ボード（厚み12mm）
の表面に貼付してこの無機質板材を得た。
前記延伸フイルムにつき、以下の性能評価を行
なつた。その結果を第１表に示す。
[Industrial Application Field] The present invention relates to an inorganic board material, and more specifically, a stretched resin film of a specific thickness is attached to the surface of an inorganic board as a building material formed mainly of an inorganic substance. For example, it relates to an inorganic board material that has good moisture resistance, weather resistance, etc., and does not cause pollution even if it is incinerated after disposal. [Prior art and its problems] Conventionally, for example, interior walls or ceilings of residences, etc., glass wool was filled between pillars as a heat insulating material, and plywood, gypsum board, wallpaper, decorative board, etc. were pasted in this order on the indoor side. Set up However, since the plywood, gypsum board, wallpaper, etc. are not waterproof, indoor moisture passes through them and reaches the glass wool. When glass wool absorbs water or moisture, its apparent volume decreases and its heat insulating effect is significantly reduced. To prevent glass wool from absorbing water or moisture,
Films made of vinyl chloride, polypropylene, high density polyethylene, low density polyethylene, etc.
Although there has been an idea to stretch materials such as sheets onto glass wool, these materials still do not have sufficient moisture permeability. Of course, if the thickness of the material is made larger than, for example, 100 μm, a somewhat satisfactory moisture permeability may be obtained, but the cost will increase, and the thickness may be increased, for example, to reduce costs.
If the thickness is reduced to about 30 μm, the moisture permeability increases and the moisture-proof function is lost. In addition, vinyl chloride emits toxic gas when burned, making it impossible to safely extinguish fires in the event of a house fire.If vinyl chloride is simply incinerated in an incinerator, the amount of calories burned is large, so the incinerator cannot be used. There is a risk of damage. This invention has been made based on the above circumstances. That is, an object of the present invention is to provide a building material for buildings that is made of resin film and has excellent moisture resistance. A further object of the present invention is to provide an inorganic plate material having excellent moisture-proofing properties, which includes a resin film of a specific thickness made of a specific resin composition and an inorganic plate containing an inorganic substance as a main component. [Means for Solving the Problems] The outline of the present invention for solving the problems is as follows: 40 to 75% by weight of polyolefin and 60 to 25% by weight of filler are added to an inorganic plate containing an inorganic substance as a main component. This is an inorganic plate material, characterized in that it is formed by pasting a stretched film with a thickness of 50 to 100 μm formed from a resin composition having the above. As the polyolefin, polyethylene such as high-pressure polyethylene, medium-pressure polyethylene, low-pressure polyethylene, linear low-density polyethylene, high-density polyethylene, polypropylene, etc. can be suitably used. Among these, preferred are linear low-density polyethylene, high-density polyethylene, and polypropylene. As the filler, both inorganic fillers and organic fillers can be used. As the particle size of the inorganic filler, those having a particle size of 0.01 to 30 μm can be suitably used, and examples thereof include carbonates such as calcium carbonate, magnesium carbonate, and dolomite, and sulfates such as calcium sulfate, magnesium sulfate, and barium sulfate. , talc, clay, montmorillonite, wollastonite, pumice powder, mica, white carbon, asbestos, glass fiber, glass powder, titanium oxide, zinc oxide, iron oxide, magnesium oxide, aluminum hydroxide, magnesium hydroxide, calcium silicate , iron powder, zinc powder, aluminum powder, etc. Among these, titanium oxide is suitable for improving whiteness and impurity, and is preferably used in combination with other fillers. In addition, calcium carbonate, mica, clay, etc. are suitable as fillers to be used in combination with titanium oxide. The particle size of titanium oxide is preferably 0.01 to 1 μm,
The particle size of other fillers is preferably 0.05 to 20 μm. Further, as the organic filler, wood flour or the like can be suitably used. The particle size of wood flour is 60~
325 mesh, preferably 80 to 200 mesh is suitably used. By dispersing and blending these fillers in polyolefin, it is possible to form a stretched film with excellent moisture resistance. The resin composition is obtained by blending the polyolefin and the filler. The blending ratio is that the polyolefin is
75-40% by weight, preferably 60-40% by weight of said fillers, 25-60% by weight, preferably 40-60% by weight. (This percentage refers to the sum of polyolefin and filler as 100). If the blending ratio of the polyolefin is more than 75% by weight, moisture resistance may decrease, and if it is less than 40% by weight, film processability, moisture resistance, weather resistance, heat resistance, etc. will deteriorate. Conventional methods and means for the above-mentioned compounding can be used, for example, mixers such as a ribbon blender, tumble mixer, Henschel mixer, open roll, Banbury mixer, single screw extruder, etc. The resin composition can be obtained by using a screw extruder, a single screw reciprocating screw kneader, or the like. moreover,
A master batch method may be used in which a master resin composition is prepared from the polyolefin and the filler, and this master resin composition is diluted with the polyolefin. The resin composition is molded into a stretched film. The film may be processed by any of the T-die method, inflation method, calendar method, etc. Further, the stretching may be uniaxial stretching or biaxial stretching. In the case of biaxial stretching, either a tenter method or a tube method may be used. The stretching ratio is not particularly limited, but it is usually sufficient if it is 0.01 or more. Moreover, the thickness of the stretched film is 50 to 100 μm. The inorganic board material according to the present invention is obtained by attaching a stretched film obtained by molding the resin composition to the surface of an inorganic board whose main component is an inorganic substance. The above-mentioned inorganic board mainly composed of an inorganic substance refers to boards that are formed mainly of an inorganic substance, are porous, and have excellent heat insulation, sound absorption, shock-absorbing properties, etc. Examples include asbestos slate, gypsum board, pulp cement board, wood wool cement board, calcium silicate board, and the like. Among these, gypsum board is preferred. Gypsum board is suitable as an interior wall material and ceiling material for buildings, but it is porous and therefore hygroscopic.
Therefore, by combining this stretched film and the gypsum board, a novel gypsum board that is excellent as a building material and has moisture resistance can be obtained. The stretched film is preferably attached to the surface of the inorganic plate material using an adhesive. riveting,
It may be pasted by tatukering, etc., but such pasting means may create holes in the stretched film, making it impossible to fully demonstrate the moisture-proofing effect of the stretched film. be. Depending on the use of this inorganic board material, for example, wallpaper, decorative board, etc. may be affixed to the surface of the inorganic board material opposite to the surface to which the stretched film is pasted. The inorganic plate material according to the present invention can be suitably used as interior walls and ceilings of buildings, houses, etc. [Effects of the Invention] According to the present invention, a stretched film obtained by blending polyolefin and filler in a specific proportion is attached to the surface of an inorganic board whose main component is an inorganic substance. It is possible to provide an inorganic board material that has excellent moisture resistance and is suitable for walls and ceilings of buildings without impairing its inherent properties such as heat insulation, sound absorption, and shock-absorbing properties. This inorganic board material can prevent the glass wool filled in the walls and ceiling from absorbing water and moisture, thereby maintaining its heat insulation and soundproof effects. Furthermore, the stretched film of this inorganic plate material does not have a high combustion calorie and does not generate toxic gas when burned, so it is easily incinerated and there is no risk of waste pollution. [Example] Next, the present invention will be described in more detail by showing examples of the present invention. Examples 1 to 14, Comparative Examples 1 to 14 Polyolefins and fillers of the types and blending amounts shown in Table 1 were added to a total of 100 parts by weight of the polyolefins and fillers (100 parts by weight of polyolefins in the comparative examples). 1.0 parts by weight of calcium stearate and stabilizer (Irganox 1010)
Using pellets obtained by blending 0.5 parts by weight,
Molding temperature 200~ with 50mm inflation molding machine
Inflation films having the thickness shown in Table 1 were prepared at 240°C. Note that during the molding of this blown film, stretching was performed at a stretching ratio of 1.1. Next, the edges of both ends of the inflation film were cut to produce stretched films having the thickness shown in Table 1. This stretched film is made of gypsum board (thickness 12 mm).
This inorganic board material was obtained by pasting it on the surface of the board. The stretched film was subjected to the following performance evaluations. The results are shown in Table 1.
インフレーシヨン成形時の製膜安定性、および
フイルムの分散性を目視で評価した。
評価結果を以下の記号で第１表中に示す。
〇；良好
△；分散性は良好であるが、製膜が悪い
Film formation stability during inflation molding and film dispersibility were visually evaluated. The evaluation results are shown in Table 1 using the following symbols. 〇: Good △: Good dispersibility but poor film formation
JIS Ｚ−0208に準拠した。測定条件は、湿度が
90％、温度が40℃である。
Compliant with JIS Z-0208. The measurement conditions are humidity
90%, temperature is 40℃.
【表】【table】
【表】【table】
Claims (1)
レフイン40〜75重量％と充填材60〜25重量％とを
有する樹脂組成物から成形した厚み50〜100μmの
延伸フイルムを貼付してなることを特徴とする無
機質板材。 ２ 前記無機質板が、石綿スレート、石膏ボー
ド、パルプセメント板、木毛セメント板、ケイ酸
カルシウムボードのいずれかである前記特許請求
の範囲第１項に記載の無機質板材。 ３ 前記充填材が有機質充填材および無機質充填
材のいずれかである前記特許請求の範囲第１項ま
たは第２項に記載の無機質板材。 ４ 前記無機質充填材が、炭酸カルシウム、クレ
ー、硫酸バリウム、タルク、モンモリロナイト、
ワラストナイト、マイカ、ガラス粉末、水酸化ア
ルミニウム、水酸化マグネシウム、ケイ酸カルシ
ウム、ワラストナイト、モンモリナイト、硫酸バ
リウム、クレー、鉄粉、酸化鉄、亜鉛粉、酸化亜
鉛、アルミニウム粉および酸化チタンよりなる群
から選択される少なくとも一種である前記特許請
求の範囲第１項から第３項までのいずれかに記載
の無機質板材。[Scope of Claims] 1. A stretched film with a thickness of 50 to 100 μm formed from a resin composition containing 40 to 75% by weight of polyolefin and 60 to 25% by weight of filler is attached to an inorganic plate containing an inorganic substance as a main component. An inorganic board material that is characterized by being made of 2. The inorganic board material according to claim 1, wherein the inorganic board is any one of asbestos slate, gypsum board, pulp cement board, wood wool cement board, and calcium silicate board. 3. The inorganic plate material according to claim 1 or 2, wherein the filler is either an organic filler or an inorganic filler. 4 The inorganic filler is calcium carbonate, clay, barium sulfate, talc, montmorillonite,
From wollastonite, mica, glass powder, aluminum hydroxide, magnesium hydroxide, calcium silicate, wollastonite, montmolinite, barium sulfate, clay, iron powder, iron oxide, zinc powder, zinc oxide, aluminum powder and titanium oxide The inorganic plate material according to any one of claims 1 to 3, which is at least one selected from the group consisting of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19838285A JPS6259033A (en) | 1985-09-07 | 1985-09-07 | Inorganic board material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19838285A JPS6259033A (en) | 1985-09-07 | 1985-09-07 | Inorganic board material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6259033A JPS6259033A (en) | 1987-03-14 |
| JPH0361628B2 true JPH0361628B2 (en) | 1991-09-20 |
Family
ID=16390191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19838285A Granted JPS6259033A (en) | 1985-09-07 | 1985-09-07 | Inorganic board material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6259033A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008155391A (en) * | 2006-12-21 | 2008-07-10 | Dic Corp | Nonflammable decorative material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542266A (en) * | 1978-09-22 | 1980-03-25 | Asahi Dow Ltd | Coated inorganic porous body and its manufacture |
-
1985
- 1985-09-07 JP JP19838285A patent/JPS6259033A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542266A (en) * | 1978-09-22 | 1980-03-25 | Asahi Dow Ltd | Coated inorganic porous body and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6259033A (en) | 1987-03-14 |
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