JPH0244127B2 - KOBUNSHIKANONTAI - Google Patents
KOBUNSHIKANONTAIInfo
- Publication number
- JPH0244127B2 JPH0244127B2 JP21324883A JP21324883A JPH0244127B2 JP H0244127 B2 JPH0244127 B2 JP H0244127B2 JP 21324883 A JP21324883 A JP 21324883A JP 21324883 A JP21324883 A JP 21324883A JP H0244127 B2 JPH0244127 B2 JP H0244127B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- temperature
- polyamide
- cobalt iodide
- present
- 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
Links
- AVWLPUQJODERGA-UHFFFAOYSA-L cobalt(2+);diiodide Chemical compound [Co+2].[I-].[I-] AVWLPUQJODERGA-UHFFFAOYSA-L 0.000 claims description 13
- 239000004952 Polyamide Substances 0.000 claims description 9
- 229920002647 polyamide Polymers 0.000 claims description 9
- 229920006122 polyamide resin Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 125000003368 amide group Chemical group 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 5
- 239000008188 pellet Substances 0.000 description 5
- 229920000299 Nylon 12 Polymers 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical group C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- -1 Copper halides Chemical class 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- ZMUCVNSKULGPQG-UHFFFAOYSA-N dodecanedioic acid;hexane-1,6-diamine Chemical compound NCCCCCCN.OC(=O)CCCCCCCCCCC(O)=O ZMUCVNSKULGPQG-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229920006017 homo-polyamide Polymers 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Thermistors And Varistors (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
【発明の詳細な説明】
本発明は、特定のポリアミド樹脂組成物からな
る熱感応性材料、特に電気容量成分を一つの制御
因子として熱制御する装置における熱感応性材料
の温度に対する抵抗値やインピーダンスの挙動が
改善された材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat-sensitive material made of a specific polyamide resin composition, and particularly to a heat-sensitive material that controls the resistance value and impedance of the heat-sensitive material with respect to temperature in a device that controls heat using a capacitance component as one of the control factors. It concerns materials with improved behavior.
従来から、温度による電気的性質の変化の大き
い有機高分子材料、例えばポリ塩化ビニル、ポリ
アミドなどを熱感応性素子として使用すること
は、電気毛布、電気カーペツトなどの例によつて
知られている。熱感応性素子の制御因子として
は、直流体積固有抵抗、比誘電率および体積固有
インピーダンスなどがあり、これらの一つまたは
それ以上の組合せでもつて制御回路を作動させる
ことができる。したがつて、熱感応性素子に要求
される特性としては、温度による電気的性質の変
化が大きいこと、吸湿による電気的性質の変化が
小さいこと、ヒートサイクルによる電気的性質の
経時的変化がなく安定であることなどが挙げられ
る。 The use of organic polymeric materials whose electrical properties change significantly with temperature, such as polyvinyl chloride and polyamide, as heat-sensitive elements has been known for some time, as seen in electric blankets, electric carpets, etc. . Control factors for the thermosensitive element include direct current volume resistivity, relative dielectric constant, and volume resistivity, and a combination of one or more of these can operate the control circuit. Therefore, the characteristics required of a heat-sensitive element are: large changes in electrical properties due to temperature, small changes in electrical properties due to moisture absorption, and no change in electrical properties over time due to heat cycles. Examples include being stable.
これまで、この種の目的に合うようにするた
め、上記の有機高分子材料に添加剤として界面活
性剤などのイオン電導性物質を添加したり（特開
昭35−14179）、イオン解離しやすいハロゲン化銅
などを添加していた（特開昭56−3904）。ところ
がこれら組成物の電導キヤリヤは当然イオン性物
質であるため、直流電場を印加すると分極を起こ
し、インピーダンスの大きな経時変化を引き起こ
してしまい、また特に前者は耐熱性の点で劣るた
め、後述のような感熱ヒーターの感温体としては
使用できなかつた。 Until now, in order to meet this type of purpose, ion conductive substances such as surfactants have been added to the above organic polymer materials as additives (Japanese Patent Application Laid-open No. 14179-1979), and they have been used to easily dissociate ions. Copper halides and other substances were added (Japanese Patent Application Laid-Open No. 56-3904). However, since the conductive carriers of these compositions are naturally ionic substances, they will polarize when a DC electric field is applied, causing a large change in impedance over time.In addition, the former are particularly poor in heat resistance, so as described below, It could not be used as a temperature sensor in a thermal heater.
そこで本発明は、上述した実用上のいくつかの
問題点を解決すべく鋭意検討した結果、特定のポ
リアミド樹脂と特定の添加剤の組合せにより、上
記要求性能を満足する熱感応性材料を作り得るこ
とを見出し、本発明に到達した。 Therefore, as a result of intensive studies to solve some of the above-mentioned practical problems, the present invention has revealed that it is possible to create a heat-sensitive material that satisfies the above-mentioned performance requirements by combining a specific polyamide resin and a specific additive. They discovered this and arrived at the present invention.
すなわち、本発明は炭素原子数100個当たりの
アミド基数が14個以下のポリアミド樹脂にヨウ化
コバルトを0.1〜10.0重量部配合したポリアミド
組成物からなる熱感応性材料を提供するものであ
る。 That is, the present invention provides a heat-sensitive material comprising a polyamide composition containing 0.1 to 10.0 parts by weight of cobalt iodide to a polyamide resin having 14 or less amide groups per 100 carbon atoms.
本発明における熱感応性材料よりなる熱感応性
素子によれば、温度に対する電気的性質の変化率
が著しく大きく、界面活性剤のようにブリードア
ウトしたり、劣化したりして経時変化することも
ないため、電気的性質の安定性がすぐれており、
更には信号導体に用いられるアルミニウム、銅な
どの金属線または金属箔を腐食することがなく、
耐熱性が優れ、またポリアミド樹脂とヨウ化コバ
ルトとの混練が容易であるなどの利点が得られ
る。 According to the heat-sensitive element made of the heat-sensitive material of the present invention, the rate of change in electrical properties with respect to temperature is extremely large, and unlike surfactants, it may bleed out or deteriorate over time. Because there is no
Furthermore, it does not corrode metal wires or metal foils such as aluminum and copper used for signal conductors.
It has advantages such as excellent heat resistance and ease of kneading the polyamide resin and cobalt iodide.
本発明で使用するポリアミド樹脂とは、ポリア
ミノウンデカミド（ナイロン11）あるいはポリω
−ラウロラクタム（ナイロン12）で代表されるア
ミド基濃度の低いポリアミド、更に詳しく述べる
ならば炭素原子数100個当りのアミド基数が14個
以下のホモポリアミドまたはコポリアミドであ
る。 The polyamide resin used in the present invention is polyaminoundecamide (nylon 11) or polyω
- A polyamide with a low concentration of amide groups represented by laurolactam (nylon 12), more specifically a homopolyamide or copolyamide having 14 or less amide groups per 100 carbon atoms.
本発明における熱感応性素子用ポリアミド組成
物の添加剤成分であるヨウ化コバルトの添加量
は、0.1〜10.0重量部、好ましくは0.5〜5.0重量部
が適当であり、0.1重量部以下では電気的性質の
温度に対する変化が十分でなく、10.0重量部以上
ではポリアミド樹脂の機械的性質が低下してしま
うため好ましくない。 The amount of cobalt iodide, which is an additive component of the polyamide composition for heat-sensitive elements in the present invention, is suitably 0.1 to 10.0 parts by weight, preferably 0.5 to 5.0 parts by weight. Changes in properties with respect to temperature are not sufficient, and if it exceeds 10.0 parts by weight, the mechanical properties of the polyamide resin will deteriorate, which is not preferable.
ヨウ化コバルトをポリアミド樹脂に添加する方
法は特に限定されず、ポリアミドの重合段階で添
加する方法、ポリアミドの粉末とヨウ化コバルト
を機械的に混合する方法、あるいは、ポリアミド
ペレツトとヨウ化コバルトを混合後押出機で溶融
混練する方法など任意の方法が実施できる。 The method of adding cobalt iodide to the polyamide resin is not particularly limited, and may include a method of adding it during the polymerization stage of polyamide, a method of mechanically mixing polyamide powder and cobalt iodide, or a method of adding cobalt iodide to polyamide pellets. Any method can be used, such as a method of melt-kneading in an extruder after mixing.
ヨウ化コバルトを含有するポリアミド組成物
は、通常更に押出機などによつて線あるいはシー
トの形状に成形して熱感応性素子とされる。 The polyamide composition containing cobalt iodide is usually further molded into a wire or sheet shape using an extruder or the like to form a heat-sensitive element.
以下本発明の効果を実施例をもつて説明する。 The effects of the present invention will be explained below using examples.
実施例 １
ナイロン12ペレツト（ダイセルヒユルス製「ダ
イアミドL1901」）100重量部に対し、ヨウ化コバ
ルト１重量部をドライブレンドした後、押出機を
用いてこれらを溶融混練し、ペレタイザーによつ
てペレツト化した。このペレツトを220°で圧縮成
形により厚み約0.5mmのシートを作成した。この
シートの1000Hzにおける体積固有インピーダンス
の温度依存性を測定した。その結果は、第１図の
曲線Ａで示すように非常に大きな勾配が得られ
た。Example 1 1 part by weight of cobalt iodide was dry-blended with 100 parts by weight of nylon 12 pellets ("Diamid L1901" manufactured by Daicel Hulls), then melt-kneaded using an extruder and pelletized using a pelletizer. . This pellet was compression molded at 220° to form a sheet with a thickness of approximately 0.5 mm. The temperature dependence of the specific volume impedance of this sheet at 1000Hz was measured. As a result, a very large slope was obtained as shown by curve A in FIG.
実施例 ２
ヨウ化コバルトを水に完全に溶解した後、ナイ
ロン６・12粉末（ダイセルヒユルス製「ダイアミ
ドD1700」）100重量部に対し、ヨウ化コバルトを
２重量部の割合でヘンシエルミキサーで混合した
後、水を完全に蒸発させた。この粉末を220°で圧
縮成形により厚み約0.5mmのシートを作成し、実
施例１と同様にして体積固有インピーダンスを測
定した。結果は第１図の曲線Ｂで示すように、実
施例１と同様良好な温度勾配を持つている。Example 2 After completely dissolving cobalt iodide in water, 2 parts by weight of cobalt iodide was mixed with 100 parts by weight of nylon 6.12 powder ("Diamid D1700" manufactured by Daicel Hyurus) using a Henschel mixer. After that, the water was completely evaporated. This powder was compression-molded at 220° to form a sheet with a thickness of about 0.5 mm, and the specific volume impedance was measured in the same manner as in Example 1. As shown by curve B in FIG. 1, the results showed a good temperature gradient similar to Example 1.
比較例 １
実施例１においてナイロン12ペレツトにヨウ化
コバルトを混入しないこと以外は実施例１と全く
同様にして厚さ約0.5mmのシートを作り、温度・
インピーダンス特性を調べたところ、第１図の曲
線Ｃに示すように、本発明に比べて勾配がゆるく
なつていることがわかる。Comparative Example 1 A sheet with a thickness of approximately 0.5 mm was made in the same manner as in Example 1 except that cobalt iodide was not mixed into the nylon 12 pellets, and the temperature and
When the impedance characteristics were examined, it was found that the slope was gentler than that of the present invention, as shown by curve C in FIG.
比較例 ２
実施例１において、ナイロン６・12ペレツトを
使い、ヨウ化コバルトを混入しないこと以外は実
施例１と全く同様にして、厚さ約0.5mmのシート
を作り、温度・インピーダンス特性を調べたとこ
ろ第１図の曲線Ｄのようになり、本発明に比べ勾
配がゆるくなつていることがわかる。Comparative Example 2 A sheet with a thickness of approximately 0.5 mm was made in the same manner as in Example 1 except that nylon 6.12 pellets were used and no cobalt iodide was mixed, and the temperature and impedance characteristics were examined. However, the curve becomes like curve D in FIG. 1, and it can be seen that the slope is gentler than that of the present invention.
これらの結果からわかるように、本発明の感温
体はナイロン12や、ナイロン６・12単独のものに
比べ、温度検知機能、すなわたインピーダンスの
温度に対する変化率が非常に改善されており、す
ぐれた電気的性質を有している。 As can be seen from these results, the temperature sensing element of the present invention has a significantly improved temperature detection function, that is, the rate of change in impedance with respect to temperature, compared to nylon 12 or nylon 6/12 alone. It has excellent electrical properties.
第１図は本発明の実施例および比較例により得
られた高分子感温体の体積固有インピーダンスと
温度の関係を示すグラフである。
FIG. 1 is a graph showing the relationship between volume specific impedance and temperature of polymer thermosensitive bodies obtained in Examples and Comparative Examples of the present invention.
Claims (1)
以下のポリアミド樹脂に、ヨウ化コバルトを0.1
〜10.0重量部配合したポリアミド組成物からなる
高分子感温体1 Add 0.1 cobalt iodide to a polyamide resin with 14 or less amide groups per 100 carbon atoms.
Polymer temperature sensitive body made of polyamide composition containing ~10.0 parts by weight
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21324883A JPH0244127B2 (en) | 1983-11-15 | 1983-11-15 | KOBUNSHIKANONTAI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21324883A JPH0244127B2 (en) | 1983-11-15 | 1983-11-15 | KOBUNSHIKANONTAI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60106106A JPS60106106A (en) | 1985-06-11 |
| JPH0244127B2 true JPH0244127B2 (en) | 1990-10-02 |
Family
ID=16635958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21324883A Expired - Lifetime JPH0244127B2 (en) | 1983-11-15 | 1983-11-15 | KOBUNSHIKANONTAI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244127B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996002923A1 (en) * | 1994-07-13 | 1996-02-01 | Matsushita Electric Industrial Co., Ltd. | Temperature-sensing polymer body and temperature-sensing element made therefrom |
-
1983
- 1983-11-15 JP JP21324883A patent/JPH0244127B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60106106A (en) | 1985-06-11 |
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