JPS6134537B2 - - Google Patents
Info
- Publication number
- JPS6134537B2 JPS6134537B2 JP17890780A JP17890780A JPS6134537B2 JP S6134537 B2 JPS6134537 B2 JP S6134537B2 JP 17890780 A JP17890780 A JP 17890780A JP 17890780 A JP17890780 A JP 17890780A JP S6134537 B2 JPS6134537 B2 JP S6134537B2
- Authority
- JP
- Japan
- Prior art keywords
- urea foam
- foam
- injection
- urea
- fibrous material
- 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
Links
- 239000006260 foam Substances 0.000 claims description 46
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 39
- 239000004202 carbamide Substances 0.000 claims description 39
- 239000002657 fibrous material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 description 27
- 239000007924 injection Substances 0.000 description 27
- 239000011491 glass wool Substances 0.000 description 13
- 238000005187 foaming Methods 0.000 description 5
- 239000011120 plywood Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 241000736772 Uria Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Building Environments (AREA)
Description
【発明の詳細な説明】
本発明はユリアフオームの改善された配設方法
に関し、特にユリアフオームの乾燥にともなつて
生じる収縮や亀裂を解決した配設方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method of arranging urea foam, and more particularly to a method of arranging urea foam that eliminates shrinkage and cracking that occur as the urea foam dries.
ユリアフオームは安価な現場発泡型の樹脂発泡
体として周知であり、特に建物内部空間即ち、天
井、壁、床などの断熱材料として有用なものであ
る。しかるにユリアフオームはやや脆弱で、発泡
時に含有される水分の蒸発につれ収縮や亀裂が発
生する。収縮や亀裂が大きくなれば実効の熱抵抗
はユリアフオームが本来有するはずの熱抵抗より
も小さくなり断熱材料としての性能も低下する。 Uriafoam is well known as an inexpensive, in-place foaming resin foam, and is particularly useful as a heat insulating material for interior spaces of buildings, such as ceilings, walls, and floors. However, urea foam is somewhat fragile and shrinks and cracks occur as the water content evaporates during foaming. If shrinkage or cracks increase, the effective thermal resistance will be smaller than the thermal resistance that urea foam should originally have, and its performance as a heat insulating material will also deteriorate.
本発明者は嵩高な繊維状物質の中に入り込んだ
ユリアフオームは乾燥後も収縮や亀裂が大きくは
成長しないということを発見して、前記の問題点
を克服する本発明を完成した。 The present inventor has discovered that urea foam that has entered a bulky fibrous material does not shrink or crack significantly even after drying, and has completed the present invention to overcome the above-mentioned problems.
すなわち、本発明は、繊維状物質が配設されて
いる建物内部空間に発泡性ユリアフオームを噴射
して、繊維状物質と多泡ユリアフオームが一体化
した断熱性多泡体を形成させることを特徴とする
ユリアフオーム配設方法である。 That is, the present invention involves injecting expandable urea foam into the interior space of a building in which a fibrous material is disposed to form an insulating foam in which the fibrous material and the foam urea foam are integrated. This is a unique method for arranging urea foam.
ユリアフオームとは尿素−ホルムアルデヒド初
期縮合物水溶液と発泡性硬化液とをガス（通常は
空気）で発泡させて得られるものである。発泡時
の圧力は２〜４Kg/cm2Gと穏かであり、発泡後約
２分間程は流動性があるが、ゲル化の開始ととも
に流動性を失なう。 Uria foam is obtained by foaming a urea-formaldehyde initial condensate aqueous solution and a foamable curing liquid with a gas (usually air). The pressure during foaming is moderate, 2 to 4 kg/cm 2 G, and the foam remains fluid for about 2 minutes after foaming, but loses fluidity as gelation begins.
本発明の実施に適する繊維状物質は、繊維と繊
維の間にユリアフオームが入り込めるような嵩高
のものが適する。たとえばグラスウールやロツク
ウールの様な無機質の繊維、セルロースや合成繊
維の様な有機質の繊維がある。嵩高さの目安を嵩
密度で示せば、比重の大きい無機質の物質では20
Kg/m3以下である。特に好ましい物質としてはマ
ツト状のグラスウールである。これは嵩密度も10
Kg/m3〜16Kg/m3と小さくて、繊維と繊維の間にユ
リアフオームが容易に入り込めるものである。 The fibrous material suitable for carrying out the present invention is suitably bulky so that the urea foam can fit between the fibers. For example, there are inorganic fibers such as glass wool and rock wool, and organic fibers such as cellulose and synthetic fibers. If the bulk density is expressed as a measure of bulk, it is 20 for inorganic substances with high specific gravity.
Kg/ m3 or less. A particularly preferred material is pine-like glass wool. This also has a bulk density of 10
It is small, ranging from Kg/m 3 to 16 Kg/m 3 , and the urea foam can easily fit between the fibers.
ユリアフオームを繊維状物質に噴射して、繊維
状物質と多泡ユリアフオームを一体化させる方法
としては、繊維状物質の間隙にユリアフオームが
はいり込める方法であればよい。 The method of spraying the urea foam onto the fibrous material to integrate the fibrous material and the multifoamed urea foam may be any method that allows the urea foam to fit into the gaps between the fibrous materials.
有効な方法を例示すると(1)繊維状物質の表面か
ら100mm以内の近距離にユリアフオームの噴射口
を位置し、５〜15ｍ／秒の噴出速度でユリアフオ
ームを繊維状物質の噴射する方法や、(2)繊維状物
質の中にユリアフオームの噴射口を挿入してユリ
アフオームを噴射する方法などである。これらの
方法でユリアフオームを繊維状物質に噴射する
と、ユリアフオームは繊維状物質をまき込みなが
らあるいは繊維状物質の間隔に浸透しながら、空
間を充填していく。ユリアフオームは噴射後約１
分経過したところで流動状態からゲル状態に移行
してもはや変形しようとせず、繊維状物質と一体
化して共存して安定に存在し、徐々に水分を放出
して乾燥する。本発明の方法でユリアフオームを
配設したところ、この乾燥過程において発生する
収縮や亀裂が著しく改善された。 Examples of effective methods include (1) a method in which the injection port of the urea foam is located at a short distance within 100 mm from the surface of the fibrous material, and the urea foam is injected into the fibrous material at a jetting speed of 5 to 15 m/sec; (2) A method of inserting a urea foam injection port into a fibrous material and spraying urea foam. When the urea foam is injected onto the fibrous material using these methods, the urea foam fills the space while enveloping the fibrous material or penetrating into the spaces between the fibrous materials. Uriaform is about 1 after injection.
After a few minutes have elapsed, it changes from a fluid state to a gel state and no longer tries to deform, but instead coexists stably as one with the fibrous material, gradually releasing moisture and drying. When the urea foam was disposed by the method of the present invention, shrinkage and cracking that occurred during the drying process were significantly improved.
以上の通り本発明は今迄のユリアフオームの持
つ欠点を改善した配設方法であり、保温や保冷の
ための断熱性多泡体を形成させる工法として、特
に建物の断熱化工法として有用である。 As described above, the present invention is an installation method that improves the drawbacks of conventional urea foam, and is particularly useful as a method for forming insulating foam for heat or cold insulation, especially as a method for insulating buildings. .
以下実施例をあげて具体的に説明する。 The present invention will be specifically explained below with reference to examples.
実施例 １
ユリアフオームを配設しようとする壁空間内に
すでにグラスウールマツトが配置されている場合
についての例が本実施例である。第１図、第２図
及び第３図が本実施例の説明図である。第１図が
示すように外側がラスモルタル壁１であり、内側
が石こうボード（９mm厚）６である既設住宅の大
壁構造の壁空間の一部をグラスウールマツト４
（嵩密度10Kg/m3、厚み30mm）が占めている。第２
図が示すように石こうボード６に直径16mmの注入
孔７を間柱５の中央部にあけた。注入孔７と７′
の間隔は約45cmとした。この注入孔７から発泡性
ユリアフオーム（三井東圧化学（株）製品名、ユ
−ロフオーム）を注入した。ユリアフオームの噴
出口（以下注入ノズルと称す）をグラスウールマ
ツトの中まで挿入して６m3／時の流量で噴出させ
た。一つの注入孔から注入してとなりの注入孔に
ユリアフオームが到達したときに、注入を停止
し、注入ノズルをひき出してとなりの注入孔に挿
入した。上記と同様にして６m3／時の流量で噴出
させた。この方法を下から上へ順次実施して間柱
で区画された一つの部位が終るとその隣へ移つ
た。こうして壁面全体を注入し終つた。注入後注
入孔にはコルクで栓をした。注入後６ケ月を経て
石こうボードをはがして内部を点検した。ユリア
フオームはすでに乾燥していた。しかるにユリア
フオームはグラスウールマツトを巻き込んで一体
化して、又更に壁に密接した状態で存在してお
り、亀裂は観察されなかつた。Example 1 This example deals with a case where a glass wool mat has already been placed in a wall space in which a urea foam is to be installed. FIG. 1, FIG. 2, and FIG. 3 are explanatory diagrams of this embodiment. As shown in Figure 1, a part of the wall space of the large wall structure of an existing house is made of glass wool matte 4.
(bulk density 10Kg/m 3 , thickness 30mm). Second
As shown in the figure, an injection hole 7 with a diameter of 16 mm was made in the gypsum board 6 at the center of the stud 5. Injection holes 7 and 7'
The distance between them was approximately 45 cm. Expandable urea foam (manufactured by Mitsui Toatsu Chemical Co., Ltd., product name: Euroform) was injected through the injection hole 7. A urea foam spout (hereinafter referred to as injection nozzle) was inserted into the glass wool mat to eject at a flow rate of 6 m 3 /hour. When the urea foam was injected through one injection hole and reached the adjacent injection hole, the injection was stopped, and the injection nozzle was pulled out and inserted into the adjacent injection hole. It was ejected at a flow rate of 6 m 3 /hour in the same manner as above. This method was carried out sequentially from bottom to top, and when one area divided by studs was completed, it was moved to the next area. In this way, the entire wall was injected. After injection, the injection hole was plugged with a cork. Six months after the injection, the plaster board was removed and the inside was inspected. The ureaform was already dry. However, the urea foam was integrated with the glass wool mat and existed in close contact with the wall, and no cracks were observed.
説明の便宜上この部分の状態を第２図において
８として示した。 For convenience of explanation, the state of this portion is shown as 8 in FIG.
６ケ月後のユリアフオームの嵩密度はグラスウ
ールマツトの量を補正して10.8Kg/m3であつた。 The bulk density of the urea foam after 6 months was 10.8 Kg/m 3 after correcting the amount of glass wool mat.
実施例 ２
グラスウールマツトを新たに配設する場合につ
いての例が本実施例である。第４図に示すように
外側がラスモルタル壁１であり、内側が第１種合
板（４mm厚）９である壁空間厚みが100mmの大壁
構造の壁を作つた。合板９をはる前にグラスウー
ルマツト（東洋フアイバーグラス（株）製品名フ
アーロン、嵩比重10Kg/m3、厚み50mm）を間柱５
及び胴線を利用してステープルで止めつけた。合
板９に注入孔７をあけ注入ノズルを挿入して9.4
ｍ／秒の噴出速度でユリアフオームを注入した。
注入の順序は実施例１と同様である。注入後注入
孔にはコルクで栓をした。注入後８ケ月を経て合
板をはがして内部を点検した。ユリアフオームは
すでに乾燥していた。しかるにユリアフオームは
グラスウールマツトを巻き込んだり、壁に押しつ
けたりした状態で存在しており、亀裂は観擦され
なかつた。８ケ月後のユリアフオームの嵩密度は
グラスウールマツトを含まない部分では10.4Kg/
m3であつた。Example 2 This example is an example of newly installing glass wool mats. As shown in Fig. 4, a large wall structure with a wall space thickness of 100 mm was made, in which the outside was made of lath mortar wall 1 and the inside was made of type 1 plywood (4 mm thick) 9. Before installing the plywood 9, install glass wool mats (Toyo Fiberglass Co., Ltd. product name Farron, bulk specific gravity 10Kg/m 3 , thickness 50mm) into the studs 5.
Then, it was fastened with staples using the body line. Open the injection hole 7 in the plywood 9 and insert the injection nozzle.9.4
The urea foam was injected at a jetting speed of m/sec.
The order of injection is the same as in Example 1. After injection, the injection hole was plugged with a cork. Eight months after the injection, the plywood was removed and the inside was inspected. The ureaform was already dry. However, the urea foam existed in a state where the glass wool pine was wrapped around it or pressed against the wall, and no cracks were observed. After 8 months, the bulk density of the urea foam is 10.4Kg/ without glass wool mats.
It was m3 .
第１図は既設の壁にグラスウールマツトが配置
されていることを示す壁の断面模式図である。第
２図は第１図においてユリアフオームを注入して
いる時の図である。第３図は注入途中の壁を注入
ノズル側からみた正面図の模式図である。第４図
は新設の壁のユリアフオーム注入状況を模式的に
示すものである。第５図は床にユリアフオームを
注入する状況を示す模式図であり、第６図は天井
にユリアフオームを注入する状況を示す模式図で
ある。これらの図において
１……ラスモルタル壁、２……アスフアルト含
浸紙、３……木下地、４……グラスウールマツ
ト、５……間柱、６……石こうボード、７及び
７′……注入孔、８……ユリアフオームが導入さ
れた部分、９……合板、１０……注入ノズル、１
１……根太、１２……寒冷紗、１３……木下地、
１４……注入補助板、１５……野縁、１６……寒
冷紗又は木下地。
FIG. 1 is a schematic cross-sectional view of a wall showing that glass wool mats are placed on an existing wall. FIG. 2 is a diagram when urea foam is being injected in FIG. 1. FIG. 3 is a schematic front view of the wall in the middle of injection as seen from the injection nozzle side. Figure 4 schematically shows the state of urea foam injection into a newly constructed wall. FIG. 5 is a schematic diagram showing a situation in which urea foam is injected into a floor, and FIG. 6 is a schematic diagram showing a situation in which urea foam is injected into a ceiling. In these figures, 1... lath mortar wall, 2... asphalt impregnated paper, 3... wood base, 4... glass wool pine, 5... studs, 6... gypsum board, 7 and 7'... injection holes, 8... Part where urea foam is introduced, 9... Plywood, 10... Injection nozzle, 1
1... Joist, 12... Cheesecloth, 13... Kinoshita base,
14... Injection auxiliary board, 15... Wild edge, 16... Cheesecloth or wood base.
Claims (1)
発泡性ユリアフオームを噴射して、繊維状物質と
多泡ユリアフオームが一体化した断熱性多泡体を
形成させることを特徴とするユリアフオーム配設
方法。1. A urea foam characterized by injecting the foamable urea foam into the interior space of a building in which the fibrous material is arranged to form an insulating foam in which the fibrous material and the foamed urea foam are integrated. Arrangement method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17890780A JPS57104744A (en) | 1980-12-19 | 1980-12-19 | Arrangement of urea foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17890780A JPS57104744A (en) | 1980-12-19 | 1980-12-19 | Arrangement of urea foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57104744A JPS57104744A (en) | 1982-06-29 |
| JPS6134537B2 true JPS6134537B2 (en) | 1986-08-08 |
Family
ID=16056759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17890780A Granted JPS57104744A (en) | 1980-12-19 | 1980-12-19 | Arrangement of urea foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57104744A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58181942A (en) * | 1982-04-13 | 1983-10-24 | アキレス株式会社 | Heat insulation of building wall part and nozzle for puring foaming gum |
-
1980
- 1980-12-19 JP JP17890780A patent/JPS57104744A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57104744A (en) | 1982-06-29 |
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