JPH0368641A - Hypochlorite-resistant rubber compound - Google Patents
Hypochlorite-resistant rubber compoundInfo
- Publication number
- JPH0368641A JPH0368641A JP1205325A JP20532589A JPH0368641A JP H0368641 A JPH0368641 A JP H0368641A JP 1205325 A JP1205325 A JP 1205325A JP 20532589 A JP20532589 A JP 20532589A JP H0368641 A JPH0368641 A JP H0368641A
- Authority
- JP
- Japan
- Prior art keywords
- butyl rubber
- hypochlorite
- pts
- rubber
- pref
- 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.)
- Granted
Links
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229920001971 elastomer Polymers 0.000 title claims abstract description 17
- 150000001875 compounds Chemical class 0.000 title claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 7
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920005557 bromobutyl Polymers 0.000 claims abstract description 5
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052919 magnesium silicate Inorganic materials 0.000 claims abstract description 4
- 235000019792 magnesium silicate Nutrition 0.000 claims abstract description 4
- 239000000391 magnesium silicate Substances 0.000 claims abstract description 4
- -1 bromobutyl Chemical group 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 229920005549 butyl rubber Polymers 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 4
- 235000021355 Stearic acid Nutrition 0.000 abstract description 4
- 239000000460 chlorine Substances 0.000 abstract description 4
- 229910052801 chlorine Inorganic materials 0.000 abstract description 4
- 229920005556 chlorobutyl Polymers 0.000 abstract description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 abstract description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000008117 stearic acid Substances 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 abstract description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- DWLVWMUCHSLGSU-UHFFFAOYSA-M n,n-dimethylcarbamate Chemical compound CN(C)C([O-])=O DWLVWMUCHSLGSU-UHFFFAOYSA-M 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 239000011787 zinc oxide Substances 0.000 abstract 1
- 229920002943 EPDM rubber Polymers 0.000 description 8
- 235000002639 sodium chloride Nutrition 0.000 description 5
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 4
- 239000012990 dithiocarbamate Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、太陽熱温水器などにおける。高温の水道水中
に含まれる塩素の影響を受ける部位に使用されるホース
、パツキン等の耐次亜塩素ゴム配合物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applicable to solar water heaters and the like. This article relates to a hypochlorite-resistant rubber compound used for hoses, gaskets, etc. in areas affected by chlorine contained in high-temperature tap water.
第１図は太陽熱温水器の概略図を示す。集熱板ｌとタン
ク２とが接続用のホース３で連通されている。熱媒体は
水道水が一般的に用いられている。Figure 1 shows a schematic diagram of a solar water heater. The heat collecting plate 1 and the tank 2 are connected through a connecting hose 3. Tap water is generally used as a heat medium.
前記ゴム配合物はエチレン・プロピレン・ジエン・モノ
マー（ＥＰＤＭ）、各種エラストマー及びシリコンとＥ
ＰＤＭの共重合体などの材料が用いられているが、主流
はＥＰＤＭである。それは、ＥＰＤＭは１分子主鎖中に
二重結合がなく、耐熱性、耐候性、耐塩素性が良いとさ
れていることによるものである。従来太陽熱温水器メー
カーではＥＰＤＭ主体で、ＥＰＤＭシリコン重合体を主
流としている。The rubber compound includes ethylene propylene diene monomer (EPDM), various elastomers, silicone and E
Although materials such as PDM copolymers are used, the mainstream is EPDM. This is because EPDM has no double bond in the main chain of one molecule and is said to have good heat resistance, weather resistance, and chlorine resistance. Traditionally, solar water heater manufacturers mainly use EPDM, with EPDM silicone polymer being the mainstream.
ところが、水道水中には消毒殺菌用に次亜塩素が加えら
れているため、この次亜塩素の存在によって長期間加熱
されるとＥＰＤＭ製のホースであっても表面剥離を生ず
る０表面剥離が進行すればホースは破壊され、水漏れが
生じる。However, since hypochlorite is added to tap water for disinfection and sterilization, the presence of hypochlorite causes surface peeling to occur even on EPDM hoses when heated for a long period of time. This will destroy the hose and cause water to leak.
本発明の目的は、水道水中に含まれている次亜塩素の影
響を受けに＜＜シた耐次亜塩素ゴム配合物を提供するこ
とにある。An object of the present invention is to provide a hypochlorite-resistant rubber compound that is resistant to the effects of hypochlorite contained in tap water.
上記目的を達成するため、本発明に係る耐次亜塩素ゴム
配合物は、ブチルゴム（ＩＩＲ：イソブチレン・イソプ
レン・ラバー）、塩素化ブチルゴム（ＣＱＩＩＲ）又は
ブロムブチルゴム（Ｂ ｒ ＩＩＲ）のポリマーから成
るものである。ここで、充填材としてケイ酸アルミニウ
ム、ケイ酸マグネシウム又はそれらの混合物を加えるの
がよい。更に、金属系の加硫剤を加えるのがよい。In order to achieve the above object, the hypochlorite-resistant rubber compound according to the present invention is composed of a polymer of butyl rubber (IIR: isobutylene isoprene rubber), chlorinated butyl rubber (CQIIR) or bromobutyl rubber (Br IIR). It is. Here, it is advisable to add aluminum silicate, magnesium silicate or mixtures thereof as fillers. Furthermore, it is preferable to add a metal-based vulcanizing agent.
ブチルゴム、塩素化ブチルゴム又はブロムブチルゴムか
らなるホース等のゴム配合物は耐次亜塩素性に優れ、長
期間の使用によってもＥＰＤＭ製のホースのような表面
剥離は生じる恐れが少ない。Rubber compounds such as hoses made of butyl rubber, chlorinated butyl rubber, or bromobutyl rubber have excellent hypochlorite resistance, and there is little risk of surface peeling like with EPDM hoses even after long-term use.
ここで、充填材としてブチルゴム等の前記ゴム１００重
量部に対してケイ酸アルミニウム、ケイ酸マグネシウム
又はそれらの混合物を６０〜１２０重量部が加えるのが
よい。ここで充填材が６０重量部以下ではその物性を満
足しにくく、コスト高となり、１２０重量部以上では成
型作業性が悪くなる。Here, as a filler, 60 to 120 parts by weight of aluminum silicate, magnesium silicate, or a mixture thereof is preferably added to 100 parts by weight of the rubber such as butyl rubber. If the amount of the filler is less than 60 parts by weight, it will be difficult to satisfy the physical properties and the cost will be high, and if it is more than 120 parts by weight, the molding workability will be poor.
また、滑剤としてステアリン酸を０．５〜３重量部加え
るのがよい。このステアリン酸は後述する酸化並塩と反
応させ、亜塩石ケンとしてゴムに作用させるものである
。０．３重量部でも効果はあるが実用上は０．５〜１重
量部の範囲がよい。Further, it is preferable to add 0.5 to 3 parts by weight of stearic acid as a lubricant. This stearic acid is reacted with an oxidized salt, which will be described later, to act on rubber as a subsalt soap. Although 0.3 parts by weight is effective, the range of 0.5 to 1 part by weight is practically preferable.
３重量部以上を入れても表面析出してしまう。Even if 3 parts by weight or more is added, surface precipitation will occur.
また、加硫剤として酸化並塩３〜７重量、ジチオカルバ
メート系の加硫剤０．５〜２重量部加えるのがよい。酸
化並塩は３重量部以下では加硫反応が遅くなり、７重量
部以上では成型品が硬くなる。また成型時の型取り作業
性も悪くなる。ジチオカルバメート系の加硫剤は、０．
５重量部以下ではその効果が少なく、２重量部以上では
酸化並塩と同様の問題がある。ここで、ジチオカルバメ
ート系の加硫剤の具体例として以下のものが挙げられる
。Further, as a vulcanizing agent, it is preferable to add 3 to 7 parts by weight of an oxidized common salt and 0.5 to 2 parts by weight of a dithiocarbamate type vulcanizing agent. If the oxidized salt is less than 3 parts by weight, the vulcanization reaction will be delayed, and if it is more than 7 parts by weight, the molded product will be hard. Moreover, the workability of molding during molding also deteriorates. The dithiocarbamate-based vulcanizing agent is 0.
If it is less than 5 parts by weight, the effect will be small, and if it is more than 2 parts by weight, there will be problems similar to those of normal oxidized salts. Here, the following are mentioned as specific examples of the dithiocarbamate-based vulcanizing agent.
（以下余白）
〔実施例〕
以下１本発明の詳細な説明する。（、Ｑ Ｉ ＩＲが１
００重量部に対し、ケイ酸アルミニウムを充填材として
１００重量部加え、さらにステアリン酸を１．５重量部
、酸化並塩を５重量部、ジチオカルバメート系の加硫剤
を１．５重量部を加えたホースを製造した。このホース
について、以下の方法で耐次亜塩素性を評価した。２０
００ｐｐｍの次亜塩素酸ソーダ溶液を、ＩＱの密封容器
でサンプルと共に８０℃に加熱し、撹拌する。ここで、
塩素濃度を保つ為、２４時間に２００の新液を常時追加
し同量の排液を行なった。その結果、従来のＥＰＤＭ配
合のホースは、２００〜３００時間で表面剥離を発生し
たが、本発明に係るホースでは６００〜８００時間まで
表面剥離は発生しなかった。これは、分子間結合力のた
めに、主鎖切断及び充填材への次亜塩素のアタックが少
ないことによると思われる。(The following is a blank space) [Example] The present invention will be described in detail below. (, Q I IR is 1
00 parts by weight, add 100 parts by weight of aluminum silicate as a filler, further add 1.5 parts by weight of stearic acid, 5 parts by weight of normal salt oxide, and 1.5 parts by weight of dithiocarbamate-based vulcanizing agent. The added hose was manufactured. The hypochlorite resistance of this hose was evaluated using the following method. 20
00 ppm sodium hypochlorite solution is heated to 80° C. and stirred with the sample in a sealed IQ container. here,
In order to maintain the chlorine concentration, 200 new liquids were constantly added every 24 hours, and the same amount of liquid was drained. As a result, surface peeling occurred in the conventional EPDM-blended hose after 200 to 300 hours, but no surface peeling occurred in the hose according to the present invention until 600 to 800 hours. This is believed to be due to less main chain scission and hypochlorite attack on the filler due to intermolecular bonding forces.
本発明によれば、耐次亜塩素ゴム配合物として、ブチル
、塩素化ブチル又はブロムブチルのポリマーにより形成
したため、水道水に加えられる次亜塩素の長時間加熱に
対しても表面剥離が発生するおそれが少ない。従ってホ
ース等の水もれのおそれを少なくすることができ、特に
太陽熱温水器で用いられるホースに適用すれば、その効
果は顕著である。According to the present invention, since the hypochlorite-resistant rubber compound is formed from a polymer of butyl, chlorinated butyl, or bromobutyl, surface peeling may occur even when hypochlorite added to tap water is heated for a long time. Less is. Therefore, it is possible to reduce the risk of water leakage from hoses, etc., and the effect is particularly significant when applied to hoses used in solar water heaters.
第１図は太陽熱温水器の要部概略構成図を示す。 １ ・・集熱板、 ２・・・タンク。 Figure 1 shows a schematic diagram of the main parts of a solar water heater. 1 ・・Heat collecting plate, 2...Tank.
Claims (1)
ーよりなる耐次亜塩素ゴム配合物。 ２、請求項１において、ケイ酸アルミニウム、ケイ酸マ
グネシウムの少なくとも一成分以上からなる充填材を含
む耐次亜塩素ゴム配合物。 ３、請求項１又は２において、金属系の加硫剤を含む耐
次亜塩素ゴム配合物。[Claims] 1. A hypochlorite-resistant rubber compound comprising a polymer of butyl, chlorinated butyl, or bromobutyl. 2. The hypochlorite-resistant rubber compound according to claim 1, comprising a filler consisting of at least one component of aluminum silicate and magnesium silicate. 3. The hypochlorite-resistant rubber compound according to claim 1 or 2, comprising a metal-based vulcanizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1205325A JPH0786157B2 (en) | 1989-08-08 | 1989-08-08 | Rubber compound for sodium hypochlorite resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1205325A JPH0786157B2 (en) | 1989-08-08 | 1989-08-08 | Rubber compound for sodium hypochlorite resistant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0368641A true JPH0368641A (en) | 1991-03-25 |
| JPH0786157B2 JPH0786157B2 (en) | 1995-09-20 |
Family
ID=16505068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1205325A Expired - Fee Related JPH0786157B2 (en) | 1989-08-08 | 1989-08-08 | Rubber compound for sodium hypochlorite resistant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0786157B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01146941A (en) * | 1987-10-28 | 1989-06-08 | Polysar Ltd | Novel rubber composition |
-
1989
- 1989-08-08 JP JP1205325A patent/JPH0786157B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01146941A (en) * | 1987-10-28 | 1989-06-08 | Polysar Ltd | Novel rubber composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0786157B2 (en) | 1995-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |