JPS59161449A - Heat-insulation material - Google Patents
Heat-insulation materialInfo
- Publication number
- JPS59161449A JPS59161449A JP3449183A JP3449183A JPS59161449A JP S59161449 A JPS59161449 A JP S59161449A JP 3449183 A JP3449183 A JP 3449183A JP 3449183 A JP3449183 A JP 3449183A JP S59161449 A JPS59161449 A JP S59161449A
- Authority
- JP
- Japan
- Prior art keywords
- plastic material
- heat
- hollow glass
- insulation
- microns
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
Abstract
Description
【発明の詳細な説明】
本発明は、プラスチック材料製の断熱材に関し、特に機
械的性質を低下させることな（、断熱効果を向上させ得
る上記断熱材に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat insulating material made of plastic material, and particularly to the above heat insulating material that can improve the heat insulating effect without deteriorating the mechanical properties.
一般に、プラスチック材料そのものは金属材料に比較し
て、熱伝導率は−〜−と低く、１０ １０Ｇ
充分な断°熱性を有するが、より以上の断熱性を必要と
する場合には、空気、不活性ガス等圧より発泡させる方
法が従来よ（行なわれている。In general, plastic materials themselves have a low thermal conductivity of 10 to 10 G compared to metal materials, and have sufficient heat insulation properties, but if higher heat insulation properties are required, air, Conventionally, a method of foaming using equal pressure of active gas has been used.
しかし、この方法では、曲げ強度、曲げ剛性率等の機械
的性質が発泡による密度の低下にともない低下するのが
欠点である。However, this method has the disadvantage that mechanical properties such as bending strength and bending rigidity decrease as the density decreases due to foaming.
本発明は、上記欠点を解消するためになされたもので、
機械的性質を保持したまま１断熱特性を向上させる断熱
材を提供するものである。The present invention has been made to solve the above-mentioned drawbacks.
The present invention provides a heat insulating material that improves thermal insulation properties while maintaining mechanical properties.
すなわち本発明は、プラスチック材料に中空ガラス球体
（以下ガラスバルーンと称す）を混入してなる断熱材に
関するもので、本発明断熱材によれば、機械的性質を低
下させることなく、熱伝導率を低下させることができる
。That is, the present invention relates to a heat insulating material made by mixing hollow glass spheres (hereinafter referred to as glass balloons) into a plastic material. can be lowered.
本発明断熱材は、ガソリンエンジンのシリンダ、気化器
間の断熱パツキン等圧適用することができる。The heat insulating material of the present invention can be applied to a heat insulating gasket between the cylinder and carburetor of a gasoline engine.
以下に本発明に適するプラスチック材料の種類、ガラス
バルーンの性状を説明する。The types of plastic materials suitable for the present invention and the properties of the glass balloon will be explained below.
本発明に適するプラスチック材料は、次のようにして選
定される。すなわちグラスチック材料に混入するガラス
バルーンは材質や中空度によっても異なるが大部分は１
００〜５００ ｋｆ／（７Ｍ”の静水圧下で破壊する。Plastic materials suitable for the present invention are selected as follows. In other words, the glass balloons mixed into the glass material vary depending on the material and degree of hollowness, but most of them are 1.
Destruction under hydrostatic pressure of 00-500 kf/(7M").
従って、成形時に、この静水圧力がかかる圧縮圧力以上
の圧力を加えなければならないプラスチック材料は適当
ではない。例えば、射出成形法を用いる大部分の熱・可
塑性樹脂は不適当である。適当なものとじては、圧縮成
形・注型成形が可能なプラスチック材料があげられ、例
えば、フェノール樹脂、エポキシ樹脂、不飽和ポリエス
テル樹脂、ポリ塩化ビニルゾル等がある。Therefore, plastic materials are not suitable because they require a pressure higher than the compression pressure applied by this hydrostatic pressure during molding. For example, most thermoplastic resins using injection molding methods are unsuitable. Suitable materials include compression moldable/cast moldable plastic materials, such as phenolic resins, epoxy resins, unsaturated polyester resins, polyvinyl chloride sols, and the like.
また混入するガラスバルーンの好ましい性状を表１に示
す。Further, Table 1 shows preferable properties of the glass balloon to be mixed.
更に、本発明断熱材は、上述したプラスチック材料に上
述したガラスバルーンを５重量−以上混入する。これは
、５重量％より少ないと後述の実施例に示すように熱伝
導率の低下効果が余り得られないからである。また、ガ
ラスバルーンの量が余り多過ぎると、ガラスバルーン同
志が付着してしまい好ましい機械的性質が得られた（な
るので、好ましい混入量は１０〜５０重量−である。Furthermore, in the heat insulating material of the present invention, the above-mentioned glass balloon is mixed in the above-mentioned plastic material in an amount of 5 weight or more. This is because if it is less than 5% by weight, the effect of lowering the thermal conductivity cannot be obtained much as shown in the examples below. In addition, if the amount of glass balloons is too large, the glass balloons will stick to each other and preferable mechanical properties will not be obtained (therefore, the preferable amount to be mixed is 10 to 50% by weight).
次に、実施例をあげ本発明を具体的に説明する。Next, the present invention will be specifically explained with reference to Examples.
実施例
供試材料：■ フェノール樹脂成形材料■ 平均粒径８
０ミクロン、粒度
分布１００％２５０ミクロン以
下、比重α２８のガラスノくルー
ン
成形法： 粉状にしたフェノール樹脂成形材料とガラス
バルーンを所定量混
入し、型内に充填後、通常の圧縮
成形（加圧か１５０ ｋｌ／”ｌ” ％硬化時間１０分
、硬化温厩１５０°０）を
行なう。Example sample material: ■ Phenolic resin molding material ■ Average particle size 8
Glass balloon molding method: 0 micron, particle size distribution 100%, 250 micron or less, specific gravity α28: Mix a predetermined amount of powdered phenolic resin molding material and glass balloons, fill it in a mold, and then perform normal compression molding (pressure molding). 150 kl/"l"% curing time 10 minutes, curing temperature 150°0).
成形品特性： 所定の混合比ごとの熱伝導率と圧縮強さ
を表２に示す。Molded product properties: Table 2 shows the thermal conductivity and compressive strength for each predetermined mixing ratio.
表２
表２の結果より、ガラス／＜ルー７を混入することによ
り、圧縮強さが低下することなく、熱伝導率が著しく低
下し、本発明断熱材力を工業上極めて有益であることが
明らかである。Table 2 From the results in Table 2, it can be seen that by mixing glass/<Rue 7, the thermal conductivity decreases significantly without decreasing the compressive strength, making the heat insulating material of the present invention extremely useful industrially. it is obvious.
復代理人 内 １） 明 復代理人 萩 原 亮 −Sub-agent: 1) Akira Sub-agent Ryo Hagi Hara -
Claims (1)
してなる断熱材。A heat insulating material made by mixing 5 or more weight of hollow glass spheres into a plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3449183A JPS59161449A (en) | 1983-03-04 | 1983-03-04 | Heat-insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3449183A JPS59161449A (en) | 1983-03-04 | 1983-03-04 | Heat-insulation material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59161449A true JPS59161449A (en) | 1984-09-12 |
Family
ID=12415710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3449183A Pending JPS59161449A (en) | 1983-03-04 | 1983-03-04 | Heat-insulation material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59161449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0291134A (en) * | 1988-09-28 | 1990-03-30 | Chisso Corp | Thermoplastic resin composition |
-
1983
- 1983-03-04 JP JP3449183A patent/JPS59161449A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0291134A (en) * | 1988-09-28 | 1990-03-30 | Chisso Corp | Thermoplastic resin composition |
| JPH0611866B2 (en) * | 1988-09-28 | 1994-02-16 | チッソ株式会社 | Thermoplastic resin composition |
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