JP4545623B2 - 不定形断熱材組成物 - Google Patents
不定形断熱材組成物 Download PDFInfo
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- JP4545623B2 JP4545623B2 JP2005100787A JP2005100787A JP4545623B2 JP 4545623 B2 JP4545623 B2 JP 4545623B2 JP 2005100787 A JP2005100787 A JP 2005100787A JP 2005100787 A JP2005100787 A JP 2005100787A JP 4545623 B2 JP4545623 B2 JP 4545623B2
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- 239000000203 mixture Substances 0.000 title claims description 100
- 238000009413 insulation Methods 0.000 title description 7
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- 239000012784 inorganic fiber Substances 0.000 claims description 95
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- 239000002904 solvent Substances 0.000 claims description 41
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 30
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 1
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- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
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- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
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- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
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- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
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- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007794 irritation Effects 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
- 238000004898 kneading Methods 0.000 description 1
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- 229910052749 magnesium Inorganic materials 0.000 description 1
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Ceramic Products (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
300Lの容器を用意し、該容器に生体溶解性無機繊維、アルミナ粉末、30%コロイダルシリカ懸濁液、増粘剤、防腐剤、パルプ、無機バインダー、分散剤及びpH調整剤を表1に示す配合割合で加えた。その後、30分攪拌して、不定形断熱材組成物2kgを得た。攪拌中、混合物の温度は、10〜30℃であった。
(1)ちょう度
JIS K 2220に準じ、ちょう度計を用いて行う。金属カップには、内径100mm、内高50mmのものを、円錐には、円錐Aを使用する。
(2)pH
不定形断熱材組成物にpH試験紙を浸して測定した。
(断熱材の形成)
不定形断熱材組成物を、JIS R 2553に準じ、長さ160×幅40×高さ40mmに成形し、100℃で、24時間加熱乾燥して、断熱材を得る。
(1)密度
JIS A 1116に準じ、寸法体積及び質量を測定して算出する
(断熱材の性能評価)
(1)加熱収縮率
上記100℃で加熱乾燥して得られる断熱材を、電気炉中1100℃で24時間加熱し、加熱後の断熱材の長さを測定する。加熱収縮率は、加熱前の断熱材の長さをXmm、加熱後の長さをYmmとし、次式により求める。
加熱収縮率(%)={(X−Y)/X}×100
上記100℃で加熱乾燥して得られる断熱材を1100℃で24時間加熱し、加熱後の断熱材の曲げ強度を求める。該曲げ強度は、JIS R 2553に準じ、3点曲げ強度試験機(テンシロン)を用いて、荷重速度49.03〜68.05N/秒の均一速度で荷重を加え、破断荷重を測定し、次式により算出する。
曲げ強度(MPa)={3×最大荷重(N)×支持ロールの中心距離(mm)}/{2×断熱材の幅(mm)×(断熱材の厚さ(mm))2}
100Lの容器を4つ用意し、該容器のそれぞれに、不定形断熱材組成物A 100gを入れ、該容器の蓋を閉め、更にシールテープで密閉した。不定形断熱材組成物Aを入れた容器を、25±4℃の暗室で、それぞれ、7日、30日、60日及び90日保存した。所定の保存期間経過後、不定形断熱材組成物を容器から取り出し、不定形断熱材組成物のちょう度及びpH、並びに該不定形断熱材組成物を100℃で加熱乾燥して得られる断熱材の密度、加熱収縮率及び1100℃加熱後の曲げ強度を、上記と同様の方法で求めた。なお、断熱材の加熱収縮率及び1100℃加熱後の曲げ強度については7日保存後の測定は省略した。その結果を表2に示す。
<不定形断熱材組成物の製造>
各添加物の配合割合を表1に示す配合量とする以外は、実施例1と同様の方法で行い、不定形断熱材組成物2kgを得た。その結果を表1及び表2示す。
・生体溶解性無機繊維;組成;SiO278質量%、CaO0.15質量%、MgO19質量%、平均繊維径4.5μm、平均繊維長5.0mm、40℃における生理食塩水溶解率5.9%
・アルミナ粉末(耐熱性粉末);「A−32」(日本軽金属社製)、平均子粒径1μm
・コロイダルシリカA;「スノーテック30」(日産化学工業社製)、固形分(耐熱性粉末)が30%の懸濁液、固形分の平均粒子径15μm、pH8.0
・コロイダルシリカB; 「スノーテック0」(日産化学工業社製)、固形分(耐熱性粉末)が30%の懸濁液、固形分の平均粒子径15μm、pH4.0
・増粘剤;ヒドロキシエチルセルロース、「ヘックユニセルQP52000H」(ダウケミカル社製)
・硫黄含有防腐剤;「デルトップ512」(武田薬品工業社製)
・パルプ;「HARMAC R」(ハーマック社製);平均繊維径5.5μm、平均繊維長2.4mm
・無機バインダー;「TAカオリン」(山陽クレー工業社製)
・分散剤;「プライマル850FF」(ローム・アンド・ハース社製)
・ フタール酸塩標準液(pH4標準溶液)
・ 中性リン酸塩標準液(pH7標準溶液)
・ ホウ酸塩標準溶液(pH9標準溶液)
・ 酢酸溶液;酢酸99%溶液
Claims (10)
- 生体溶解性無機繊維、溶媒、コロイダルシリカ及びpH調整剤として緩衝溶液又は酸を含有する組成物であって、該組成物のpHが4〜8.5であることを特徴とする不定形断熱材組成物。
- 前記生体溶解性無機繊維は、40℃における生理食塩水溶解率が1%以上の無機繊維であることを特徴とする請求項1記載の不定形断熱材組成物。
- 更に、有機繊維を含有することを特徴とする請求項1又は2に記載の不定形断熱材組成物。
- 室温下、製造後の少なくとも1ヶ月保存において、該組成物のpHが4〜8.5であることを特徴とする請求項1〜3のいずれか1項記載の不定形断熱材組成物。
- 前記不定形断熱材組成物中の固形物100質量部に対して、前記溶媒を5〜80質量部含むことを特徴とする請求項1〜4のいずれか1項記載の不定形断熱材組成物。
- 前記溶媒が、水であることを特徴とする請求項1〜5のいずれか1項記載の不定形断熱材組成物。
- 前記生体溶解性無機繊維100質量部に対して、前記緩衝溶液を10〜1000質量部含むことを特徴とする請求項1〜6のいずれか1項記載の不定形断熱材組成物。
- 前記酸が酢酸であり、前記不定形断熱材組成物100質量部中に、99%濃度の酢酸溶液1.0〜4.0質量部に相当する量の酢酸を含むことを特徴とする請求項1〜7のいずれか1項記載の不定形断熱材組成物。
- 生体溶解性無機繊維、溶媒、コロイダルシリカ及びpH調整剤として緩衝溶液又は酸を混合してpHが4〜8.5の組成物を得ることを特徴とする不定形断熱材組成物の製造方法。
- 前記生体溶解性無機繊維は、40℃における生理食塩水溶解率が1%以上の無機繊維であることを特徴とする請求項9記載の不定形断熱材組成物の製造方法。
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