JPH0214938B2 - - Google Patents
Info
- Publication number
- JPH0214938B2 JPH0214938B2 JP18973482A JP18973482A JPH0214938B2 JP H0214938 B2 JPH0214938 B2 JP H0214938B2 JP 18973482 A JP18973482 A JP 18973482A JP 18973482 A JP18973482 A JP 18973482A JP H0214938 B2 JPH0214938 B2 JP H0214938B2
- Authority
- JP
- Japan
- Prior art keywords
- foam
- coating
- polyolefin resin
- resin foam
- heat insulating
- 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 26
- 229920005672 polyolefin resin Polymers 0.000 claims description 14
- 239000011810 insulating material Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920001228 polyisocyanate Polymers 0.000 claims description 3
- 239000005056 polyisocyanate Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 17
- 238000000576 coating method Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- -1 Polyethylene Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明は機械的強度、耐候性等の良好な薄肉被
覆を有する被覆付き保温材の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a coated heat insulating material having a thin coating with good mechanical strength and weather resistance.
ソーラーシステムやエアコン等の配管には、断
熱のためポリオレフイン樹脂発泡体製の保温材を
被覆することが行われている。 Piping for solar systems, air conditioners, etc. is coated with a heat insulating material made of polyolefin resin foam for insulation purposes.
然して、ポリオレフイン樹脂発泡体は一般にそ
のままでは機械的強度や耐候性に乏しいためポリ
オレフイン樹脂発泡体の外周には、例えば特公昭
52―25436号公報および特公昭40―24993号公報に
記載されているように、押出機により耐候性の良
い押出し被覆を施すことが行なわれている。 However, since polyolefin resin foam generally lacks mechanical strength and weather resistance as it is, the outer periphery of the polyolefin resin foam is
As described in Japanese Patent Publication No. 52-25436 and Japanese Patent Publication No. 40-24993, extrusion coating with good weather resistance has been applied using an extruder.
しかるに、このような従来の押出機を用いた被
覆形成方法では、押出機を通過する際ポリオレフ
イン樹脂発泡体の外面に傷がつき易いという欠点
があつた。また、押出機により被覆を形成する場
合には一定以上の肉厚を要するため、必然的に仕
上がり外径が太くなるうえに、ポリオレフイン樹
脂発泡体と被覆との密着が不十分なものとなり易
い難点がある。 However, such a conventional coating forming method using an extruder has the disadvantage that the outer surface of the polyolefin resin foam is easily damaged when passing through the extruder. In addition, when forming a coating using an extruder, the wall thickness must exceed a certain level, which inevitably results in a thicker finished outer diameter, and the problem is that the adhesion between the polyolefin resin foam and the coating tends to be insufficient. There is.
しかも、このような押出を用いる方法では、ポ
リオレフイン樹脂発泡体の形状に見合う大型の押
出機と金型等各種準備する必要があり、設備費が
高額となる難点もあつた。 Moreover, such a method using extrusion requires various preparations such as a large-sized extruder and mold suitable for the shape of the polyolefin resin foam, and has the disadvantage of high equipment costs.
本発明は以上の点に着目してなされたもので、
ポリオレフイン樹脂発泡体外周に浸漬方式によつ
て、薄くかつ強固な被覆を施す方法を提供するこ
とを目的とする。 The present invention has been made focusing on the above points,
The object of the present invention is to provide a method for applying a thin and strong coating to the outer periphery of a polyolefin resin foam by a dipping method.
すなわち本発明の被覆付き保温材の製造方法
は、ポリオレフイン樹脂発泡体の表面をプライマ
ー処理した後、常温硬化型フツ素樹脂溶液を塗布
し乾燥硬化させたことを特徴としている。 That is, the method for producing a coated heat insulating material of the present invention is characterized in that after the surface of the polyolefin resin foam is treated with a primer, a room temperature curing fluororesin solution is applied and dried and cured.
以下本発明の詳細をその一実施例を示す図面に
より説明する。 The details of the present invention will be explained below with reference to the drawings showing one embodiment thereof.
図面は本発明の方法の実施に好適する保温材の
被覆ライン構成図である。 The drawing is a diagram showing the construction of a heat insulating material coating line suitable for carrying out the method of the present invention.
図においてこのラインは押出機２、冷却機３、
プライマー処理槽４、赤外線ランプを用いた焼付
機５、被覆処理槽６、熱風吹き付けによる乾燥機
７、引取り機８、カツター９およびストツカー１
０が順に配設されて構成されている。 In the figure, this line includes extruder 2, cooler 3,
Primer treatment tank 4, baking machine 5 using an infrared lamp, coating treatment tank 6, dryer 7 using hot air blowing, take-up machine 8, cutter 9, and stocker 1
0 are arranged in order.
この実施例ではポリオレフイン樹脂発泡体１は
押出機２によりチユーブ状に押出され、多数のガ
イドローラー１１を経由して処理部へ送り込まれ
る。 In this embodiment, a polyolefin resin foam 1 is extruded into a tube shape by an extruder 2, and sent to a processing section via a number of guide rollers 11.
まず、押出機２によつて押出されたチユーブ状
の発泡体１は所定の外径まで膨張した後冷却機３
により冷却固化される。この冷却機３は例えば水
を噴出するシヤワーから構成されている。 First, a tube-shaped foam 1 extruded by an extruder 2 is expanded to a predetermined outer diameter, and then a cooling device 3
It is cooled and solidified. This cooler 3 is comprised of, for example, a shower that spouts water.
次に発泡体１はプライマー処理槽４に送り込ま
れる。この槽内には飽和ポリエステル系樹脂、ポ
リウレタン樹脂とポリイソシアネートとの混合溶
液が満たされており、発泡体１の外表面に樹脂被
膜が形成され、この被膜は焼付機５によつて加熱
硬化される。 Next, the foam 1 is fed into a primer treatment tank 4. This tank is filled with a mixed solution of saturated polyester resin, polyurethane resin, and polyisocyanate, and a resin film is formed on the outer surface of the foam 1, and this film is heated and hardened by the baking machine 5. Ru.
被覆処理槽６には、例えば旭硝子社製ルミフロ
ンのような常温硬化型フツ素樹脂を有機溶剤に溶
解させた液が満たされており、プライマー処理さ
れた発泡体１上に塗布され、その後発泡体１は乾
燥機により乾燥硬化されて薄くかつ強固な常温硬
化型フツ素樹脂被覆が形成される。引取り機８を
通過した後図示を省略した計尺機により計尺さ
れ、所定長さに切断される。切断された被覆付き
発泡体はストツカー１０に堆積され、ストツカー
１０は被覆付き保温材が所定量堆積されると搬出
される。 The coating treatment tank 6 is filled with a liquid obtained by dissolving a cold-curing fluororesin such as Lumiflon manufactured by Asahi Glass Co., Ltd. in an organic solvent, and is applied onto the primer-treated foam 1, and then the foam is coated. 1 is dried and cured in a dryer to form a thin and strong cold-curing fluororesin coating. After passing through the take-up machine 8, it is measured by a measuring machine (not shown) and cut into a predetermined length. The cut covered foam is deposited on a stocker 10, and the stocker 10 is transported out after a predetermined amount of coated heat insulating material has been deposited.
なお上記実施例のラインにおいては、押出直後
のポリオレフイン樹脂発泡体にプライマー処理を
施すようにしたが、ポリオレフイン樹脂発泡体を
予め別工程で製造しておき、これをサプライにセ
ツトして用いるようにしてもよい。また、プライ
マー処理液に顔料を混入して、被覆の色付けを行
なつたり、乾燥機として赤外線ランプを用いたも
のを使用する等適宜変更するようにしてもよい。 In the line of the above example, the polyolefin resin foam was subjected to primer treatment immediately after extrusion, but it was also possible to manufacture the polyolefin resin foam in advance in a separate process and set it in the supply for use. It's okay. Further, the coating may be colored by mixing a pigment into the primer treatment liquid, or by using an infrared lamp as a dryer, etc., as appropriate.
以下本発明の具体例について説明する。 Specific examples of the present invention will be described below.
実施例
ポリエチレンをチユーブ状に押出しつつ30倍に
発泡させ、これを冷却した後飽和ポリエステル系
樹脂接着剤（Bostick＃7663；アツプジヨン株式
会社製）10部とポリイソシアネート（PAPI
135；同社製）２部を混合溶液に浸漬し、次いで
135℃で45秒間加熱して塗布液を発泡体表面に焼
付けた。Example Polyethylene was extruded into a tube shape and expanded 30 times. After cooling, 10 parts of a saturated polyester resin adhesive (Bostick #7663; manufactured by Upjiyon Co., Ltd.) and polyisocyanate (PAPI) were added.
135; manufactured by the same company) was immersed in the mixed solution, and then
The coating solution was baked onto the foam surface by heating at 135° C. for 45 seconds.
次に常温硬化型フツ素樹脂（ルミフロン；旭硝
子社製）を有機溶剤に50重量％溶解させた溶液に
浸漬した後加熱乾燥させ、これを24時間放置して
発泡体表面に黒色の被覆を形成させた。発泡体表
面に形成された常温硬化型フツ素樹脂被覆の厚さ
は30μであつた。 Next, a room temperature curing fluororesin (Lumiflon; manufactured by Asahi Glass Co., Ltd.) was immersed in a solution of 50% by weight dissolved in an organic solvent, then heated and dried, and left to stand for 24 hours to form a black coating on the foam surface. I let it happen. The thickness of the cold-curing fluororesin coating formed on the foam surface was 30 μm.
このようにして得たチユーブ状の被覆付き発泡
体の被覆を剥離しようとしたところ、発泡体から
の剥離は不可能であり、無理に引き剥がしたとこ
ろ発泡体が破損した。また、サンシヤインウエザ
ロメーターで1000時間照射を行なつた後、引張り
試験を行なつたところ、被覆を有さないものが照
射前の強さの27％まで強度が低下したのに対し、
本発明のものでは同一条件下で75％の強度を保持
した。 When an attempt was made to peel off the coating from the tube-shaped covered foam thus obtained, it was impossible to peel it off from the foam, and when the coating was forcibly peeled off, the foam was damaged. In addition, when we conducted a tensile test after irradiating it for 1000 hours with a Sunshine Weatherometer, we found that the strength of the uncoated product decreased to 27% of the strength before irradiation.
The one of the present invention maintained 75% strength under the same conditions.
また本発明の方法によつて得た被覆付きポリオ
レフイン樹脂発泡体は、外面に常温硬化型フツ素
樹脂の膜が形成されていることから、ガスバリア
ー性、耐水性、表面の艷状態も大幅に改善されて
いる。 In addition, the coated polyolefin resin foam obtained by the method of the present invention has a film of room-temperature curing fluororesin formed on its outer surface, so it has significantly improved gas barrier properties, water resistance, and surface roughness. It has been improved.
以上の実施例からも明らかなように本発明によ
れば、機械的特性、耐候性等の良好な薄肉被覆を
有する任意サイズの保温材を容易に製造すること
ができる。 As is clear from the above examples, according to the present invention, a heat insulating material of any size having a thin coating with good mechanical properties, weather resistance, etc. can be easily manufactured.
図面は本発明の実施例に好適するラインの構成
図である。
１……ポリオレフイン樹脂発泡体、４……プラ
イマー処理槽、６……被覆処理槽。
The drawing is a configuration diagram of a line suitable for an embodiment of the present invention. 1...Polyolefin resin foam, 4...Primer treatment tank, 6...Coating treatment tank.
Claims (1)
ー処理した後、常温硬化型フツ素樹脂溶液を塗布
し乾燥硬化させたことを特徴とする被覆付き保温
材の製造方法。 ２ プライマー処理は飽和ポリエステル系樹脂お
よびポリイソシアネートの混合溶液を塗布し加熱
乾燥することにより行なわれることを特徴とする
特許請求の範囲第１項記載の被覆付き保温材の製
造方法。[Scope of Claims] 1. A method for producing a coated heat insulating material, characterized in that the surface of a polyolefin resin foam is treated with a primer, and then a room temperature curing fluororesin solution is applied and dried and cured. 2. The method for producing a coated heat insulating material according to claim 1, wherein the primer treatment is performed by applying a mixed solution of a saturated polyester resin and a polyisocyanate and drying by heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18973482A JPS5978247A (en) | 1982-10-27 | 1982-10-27 | Production of coated heat insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18973482A JPS5978247A (en) | 1982-10-27 | 1982-10-27 | Production of coated heat insulation material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5978247A JPS5978247A (en) | 1984-05-07 |
| JPH0214938B2 true JPH0214938B2 (en) | 1990-04-10 |
Family
ID=16246285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18973482A Granted JPS5978247A (en) | 1982-10-27 | 1982-10-27 | Production of coated heat insulation material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416541U (en) * | 1990-05-29 | 1992-02-12 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8071176B2 (en) * | 2004-09-24 | 2011-12-06 | Arkema Inc. | Process for forming a weatherable polyvinyl chloride or polyolefin article |
-
1982
- 1982-10-27 JP JP18973482A patent/JPS5978247A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416541U (en) * | 1990-05-29 | 1992-02-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5978247A (en) | 1984-05-07 |
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