JP3438523B2 - Inorganic adhesive composition - Google Patents

Inorganic adhesive composition

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Publication number
JP3438523B2
JP3438523B2 JP09522697A JP9522697A JP3438523B2 JP 3438523 B2 JP3438523 B2 JP 3438523B2 JP 09522697 A JP09522697 A JP 09522697A JP 9522697 A JP9522697 A JP 9522697A JP 3438523 B2 JP3438523 B2 JP 3438523B2
Authority
JP
Japan
Prior art keywords
adhesive
weight
parts
adhesive composition
inorganic
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
Application number
JP09522697A
Other languages
Japanese (ja)
Other versions
JPH10273625A (en
Inventor
信男 大西
育利 上田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nichias Corp
Original Assignee
Nichias Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nichias Corp filed Critical Nichias Corp
Priority to JP09522697A priority Critical patent/JP3438523B2/en
Publication of JPH10273625A publication Critical patent/JPH10273625A/en
Application granted granted Critical
Publication of JP3438523B2 publication Critical patent/JP3438523B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Adhesives Or Adhesive Processes (AREA)

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、無機質接着剤組成
物に係るもので、ガラスウールマット、ロックウールマ
ット、珪酸カルシウム成形体等の無機質多孔体を接着す
るのに適した無機質接着剤組成物の改良に関する。 【0002】 【従来の技術】ガラスウールマット、ロックウールマッ
ト、珪酸カルシウム等の無機質多孔体を接着する無機質
接着剤組成物として、コロイダルシリカ、カオリン等の
粘土鉱物粉末、炭酸カルシウム粉末、水を調整して成る
無機質接着剤組成物が知られている。 【0003】 【発明が解決しようとする課題】従来の無機質接着剤組
成物では無機質多孔体を接着して得られる積層した断熱
層の良好な軽量性、断熱性、接着強度が得られない。 【0004】本発明は、上記問題に鑑みてなされたもの
であって、従来の接着剤に比べ積層した断熱層の軽量化
を図り、断熱性能を高め、接着強度の向上を可能とし
た、無機質接着剤組成物を提供することを目的としてい
る。 【0005】 【課題を解決するための手段】本発明者等は、上記の点
について研究実験を重ねて行なった結果、珪酸カルシウ
ム微粉末とゼオライトを新規な配合原料として併用する
ことにより、前記目的を達成し得ることを知見し、この
知見に基づいて本発明を完成したものである。 【0006】即ち、本発明による無機質接着剤組成物
は、コロイダルシリカ5〜30重量部、珪酸カルシウム
微粉末5〜40重量部、カオリン、ベントナイト、クレ
ーからなる群から選ばれる1種以上の粘土鉱物粉末40
〜70重量部、ゼオライト2〜20重量部、上記合計1
00重量部に対し水90〜200重量部から成ることを
要旨としている。 【0007】前記珪酸カルシウム微粉末は、比表面積
(吸水量)が非常に大きいこと、嵩比重が小さいことに
より、配合材中の配合水量が多くなり、粘度が上がりそ
の結果、配合材中の固形分量が少なくなり、塗布量も少
なくなり、断熱層の嵩密度が下がり、接着強度が向上す
る。 【0008】珪酸カルシウム微粉末として、ワラストナ
イト、ガラス繊維が含まれる廃材を粉砕した珪酸カルシ
ウム微粉末を使用した場合には、その形状による補強効
果により強度がさらに高められる。単純に珪酸カルシウ
ム微粉末を用いた場合、珪酸カルシウム中のカルシウム
イオンCa++の影響により、コロイダルシリカがゲル化
し、急速に粘土が上昇するが、ゼオライトのカルシウム
イオン交換能力によるカルシウムイオンのトラップ機能
により、ゲル化が抑制される。 【0009】 【発明の実施の形態】本発明の好ましい実施の形態とし
ては、コロイダルシリカ15重量部、珪酸カルシウム微
粉末(45μ全面)22重量部、ハードクレー54重量
部、ゼオライト9重量部、上記合計100重量部に対し
水145重量部として構成する。 【0010】 【実施例】次に、下記表1に示した本発明の接着剤(実
施例)と従来の接着剤(比較例)を用いて積層成形した
断熱層の「嵩密度」、「熱伝導率」および「接着強度」
につき記載する。 【0011】 【表1】 【0012】「嵩密度」図1はスレート円筒1にガラス
マット2に無機質接着剤3を塗布しながら、煙突ライナ
ー等に使用される断熱筒を成形する工程であり、前記実
施例および比較例の接着剤を、それぞれガラスマットに
塗布して断熱筒を成形した。適性塗布量を対比したとこ
ろ、比較例の接着剤では、接着剤の塗布量が821g/
2であったのに対し、実施例の接着剤では、714g
/m2であった。これは、比較例の接着剤は、接着剤の
粘度が40〜60cpsであり、実施例の接着剤では3
20〜470cpsと高いため、多孔質の繊維質ガラス
マットに浸透されにくいためであると認められた。ま
た、比較例の接着剤での水を入れた最終使用時の接着剤
中の固形量は44.8%であり、実施例の接着剤での固
形量は34.6%であるので、前述した接着剤の乾燥後
の固形量は、 比較例の接着剤……821×44.8%≒368g/m
2 実施例の接着剤……714×34.6%≒247g/m
2 と算出された。さらに、内径458mm、厚さ50mm
の断熱層から200mm角×厚さ30mmのガラスマッ
ト片を12ヶ切り出してその嵩密度を測定したところ、 比較例の断熱層……平均192kg/m3(217〜1
67kg/m3) 実施例の断熱層……平均156kg/m3(172〜1
40kg/m3) であり、実施例の接着剤により断熱層の嵩密度の軽量化
が達成されたことが認められた。 【0013】「熱伝導率」上記の方法によりサンプルを
作成し、JIS A 1412−1994「熱絶縁材の
熱伝導率及び熱抵抗の測定方法」の「平板比較法」に基
づいて、70℃における熱伝導率を測定したところ、 比較例のサンプル……0.040kcal/mh°C 実施例のサンプル……0.038kcal/mh°C であり、実施例の接着剤により熱伝導率が小さくなり、
断熱性能の向上したことが認められた。 【0014】「接着強度」図2(イ)に示すガラスマッ
ト[W=50mm、L=150mm]下部面(50mm
×50mm)に2gの接着剤(実施例と比較例)を塗布
し、その塗布面に他の同様のガラスマットを重ね合わ
せ、250gの重錘をのせ、24時間乾燥後、図2
(ロ)に示すように、矢印の方向に200mm/分の速
度で引張り試験を行ない、引張破断強さを求めたとこ
ろ、下記表2に示す成績結果が得られた。 【0015】 【表2】 【0016】表2に示すように、本発明による接着剤
は、比較例に示した従来の接着剤に較べ、接着強度に優
れていることが認められた。 【0017】 【発明の効果】以上、詳述したように、本発明の無機質
接着剤によれば、ガラスマット、ロックウールマット、
珪酸カルシウム成形体を積層成形して得られる断熱層の
軽量化、断熱性能の向上、接着強度の向上を達成でき
る。
DETAILED DESCRIPTION OF THE INVENTION [0001] TECHNICAL FIELD The present invention relates to an inorganic adhesive composition
Glass wool mats, rock wool mats
Adhesion of inorganic porous materials, such as sheets and calcium silicate moldings
The present invention relates to an improvement in an inorganic adhesive composition suitable for use in an adhesive. [0002] 2. Description of the Related Art Glass wool mats and rock wool mats
Inorganic materials that bond inorganic porous materials such as
As an adhesive composition, colloidal silica, kaolin, etc.
Composed of clay mineral powder, calcium carbonate powder, and water
Inorganic adhesive compositions are known. [0003] SUMMARY OF THE INVENTION Conventional inorganic adhesive set
Laminated heat insulation obtained by bonding inorganic porous materials in products
Good lightness, heat insulation and adhesive strength of the layer cannot be obtained. The present invention has been made in view of the above problems.
In addition, the weight of the heat insulation layer laminated compared to conventional adhesives is reduced.
To improve heat insulation performance and improve adhesive strength
In addition, an object of the present invention is to provide an inorganic adhesive composition.
You. [0005] Means for Solving the Problems The present inventors have set forth the above points.
As a result of repeated research experiments on calcium silicate,
Of fine powder and zeolite as new ingredients
By doing so, we found that we could achieve the above objective,
The present invention has been completed based on the findings. That is, the inorganic adhesive composition according to the present invention
Is 5 to 30 parts by weight of colloidal silica, calcium silicate
5-40 parts by weight of fine powder, kaolin, bentonite,Cle
One or more selected from the group consisting ofClay mineral powder 40
To 70 parts by weight, 2 to 20 parts by weight of zeolite, 1 in total
90 to 200 parts by weight of water per 100 parts by weight
It is a gist. The calcium silicate fine powder has a specific surface area.
(Water absorption) is very large and bulk specific gravity is small
The amount of water in the compounding material increases, and the viscosity increases.
As a result, the solid content in the blended material is reduced and the
Disappears, the bulk density of the heat insulating layer decreases, and the bonding strength increases.
You. [0008] As calcium silicate fine powder,
Silicate calcium crushed waste material containing glass and glass fiber
When fine powder of aluminum is used, the reinforcing effect of its shape
The fruit further increases the strength. Simply calcium silicate
When fine powder is used, calcium in calcium silicate
Ion Ca++Of colloidal silica due to the effect of
And the clay rises rapidly but the calcium in the zeolite
Calcium ion trapping function by ion exchange capacity
Thereby, gelation is suppressed. [0009] DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described.
15 parts by weight of colloidal silica, fine calcium silicate
22 parts by weight of powder (45μ whole surface), 54 parts by weight of hard clay
Parts, 9 parts by weight of zeolite, and 100 parts by weight in total
Constitute as 145 parts by weight of water. [0010] EXAMPLES Next, the adhesive (actual) of the present invention shown in Table 1 below was used.
Example) and a conventional adhesive (comparative example) were laminated and molded.
"Bulk density", "thermal conductivity" and "adhesive strength" of the heat insulation layer
To be described. [0011] [Table 1] FIG. 1 shows a slate cylinder 1 with glass.
While applying the inorganic adhesive 3 to the mat 2, the chimney liner
This is a step of forming a heat insulating cylinder used for
Apply the adhesives of the examples and comparative examples to glass mats, respectively.
It was applied to form a heat insulating cylinder. Compared to the appropriate amount of application
In addition, in the adhesive of the comparative example, the applied amount of the adhesive was 821 g /
mTwoOn the other hand, in the adhesive of Example, 714 g
/ MTwoMet. This is because the adhesive of the comparative example is
The viscosity is 40-60 cps, and 3
Porous fibrous glass due to high as 20-470 cps
It was recognized that it was difficult to penetrate the mat. Ma
Also, the adhesive at the time of final use containing water in the adhesive of the comparative example
The solids content in the sample was 44.8%,
Since the shape amount is 34.6%, after drying the above-mentioned adhesive
The solids content of Adhesive of Comparative Example 821 × 44.8% ≒ 368 g / m
Two Adhesive of Example: 714 × 34.6% ≒ 247 g / m
Two It was calculated. Furthermore, inner diameter 458mm, thickness 50mm
200 mm square x 30 mm thick glass mat
When 12 bulk pieces were cut out and the bulk density was measured, Insulation layer of comparative example: average 192 kg / mThree(217-1
67kg / mThree) Insulation layer of Example: average 156 kg / mThree(172-1
40kg / mThree) And the bulk density of the heat insulating layer is reduced by the adhesive of the embodiment.
Was achieved. "Thermal conductivity"
JIS A 1412-1994 “Thermal insulation material
Measurement method of thermal conductivity and thermal resistance "
Then, when the thermal conductivity at 70 ° C. was measured, Sample of comparative example: 0.040 kcal / mh ° C Example sample: 0.038 kcal / mh ° C The thermal conductivity is reduced by the adhesive of the embodiment,
It was recognized that the heat insulation performance was improved. [Adhesive strength] The glass mat shown in FIG.
G [W = 50 mm, L = 150 mm] Lower surface (50 mm
X 50 mm) with 2 g of adhesive (Example and Comparative Example)
And place another similar glass mat on the coated surface.
2 and put on a weight of 250 g and dried for 24 hours.
As shown in (b), the speed is 200 mm / min in the direction of the arrow.
The tensile test was performed at a degree to determine the tensile strength at break.
In addition, the results shown in Table 2 below were obtained. [0015] [Table 2] As shown in Table 2, the adhesive according to the present invention
Is superior in adhesive strength to the conventional adhesive shown in Comparative Example.
Was recognized. [0017] As described in detail above, the inorganic material of the present invention
According to the adhesive, glass mat, rock wool mat,
Insulation layer obtained by laminating and molding calcium silicate
Achieved weight reduction, improved heat insulation performance, and improved adhesive strength
You.

【図面の簡単な説明】 【図1】本発明による無機質接着剤組成物の使用例を示
すもので、ガラスマットに接着剤を塗布しながらスレー
ト円筒に巻き付ける状態の説明図である。 【図2】図2(イ),(ロ)は接着剤の接着強度を測定
するための試験方向の説明図である。 【符号の説明】 1 スレート円筒 2 ガラスマット 3 接着剤 4 断熱層
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an example of use of an inorganic adhesive composition according to the present invention, and is an explanatory view showing a state in which an adhesive is applied to a glass mat and wound around a slate cylinder. FIGS. 2A and 2B are explanatory views of a test direction for measuring the adhesive strength of an adhesive. [Description of Signs] 1 Slate cylinder 2 Glass mat 3 Adhesive 4 Heat insulation layer

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) C09J 1/00 - 1/02 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 7 , DB name) C09J 1/00-1/02

Claims (1)

(57)【特許請求の範囲】 【請求項1】 コロイダルシリカ5〜30重量部、珪酸
カルシウム微粉末5〜40重量部、カオリン、ベントナ
イト、クレーからなる群から選ばれる1種以上の粘土鉱
物粉末40〜70重量部、ゼオライト2〜20重量部、
上記合計100重量部に対し水90〜200重量部から
成ることを特徴とする無機質接着剤組成物。
(57) [Claim 1] One or more clay mineral powders selected from the group consisting of 5 to 30 parts by weight of colloidal silica, 5 to 40 parts by weight of calcium silicate fine powder, kaolin, bentonite and clay 40 to 70 parts by weight, 2 to 20 parts by weight of zeolite,
An inorganic adhesive composition comprising 90 to 200 parts by weight of water with respect to 100 parts by weight in total.
JP09522697A 1997-03-28 1997-03-28 Inorganic adhesive composition Expired - Lifetime JP3438523B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP09522697A JP3438523B2 (en) 1997-03-28 1997-03-28 Inorganic adhesive composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09522697A JP3438523B2 (en) 1997-03-28 1997-03-28 Inorganic adhesive composition

Publications (2)

Publication Number Publication Date
JPH10273625A JPH10273625A (en) 1998-10-13
JP3438523B2 true JP3438523B2 (en) 2003-08-18

Family

ID=14131852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP09522697A Expired - Lifetime JP3438523B2 (en) 1997-03-28 1997-03-28 Inorganic adhesive composition

Country Status (1)

Country Link
JP (1) JP3438523B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006137823A (en) * 2004-11-11 2006-06-01 Sumitomo Chemical Co Ltd Method for bonding
KR100707519B1 (en) 2006-10-31 2007-04-13 주식회사 포스코건설 Fire-resistant board adhesive composition for concrete
US8821626B2 (en) 2011-03-18 2014-09-02 Nichias Corporation Adhesive for inorganic fiber
JP4814402B1 (en) * 2011-03-18 2011-11-16 ニチアス株式会社 Inorganic fiber adhesive
CN103936386B (en) * 2014-03-27 2016-02-17 公安部四川消防研究所 The compound nontoxic high-temperature plastic of fire door

Also Published As

Publication number Publication date
JPH10273625A (en) 1998-10-13

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