JP2014136756A - 耐熱難燃性ゴム組成物及び絶縁電線、ゴムチューブ - Google Patents
耐熱難燃性ゴム組成物及び絶縁電線、ゴムチューブ Download PDFInfo
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
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- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
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- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
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- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
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- 239000011787 zinc oxide Substances 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
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- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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Abstract
【解決手段】
(A)フッ化ビニリデン−ヘキサフルオロプロピレン系共重合体ゴム及び/又はフッ化ビニリデン−ヘキサフルオロプロピレン−テトラフルオロエチレン系共重合体ゴムと、(B)ポリフッ化ビニリデンとを、90:10〜60:40(質量比)で混合した混合物の100質量部に対し、無機充填剤を10〜100質量部配合してなる耐熱難燃性ゴム組成物、及びそのゴム組成物からなり電離放射線を照射してなる絶縁被覆を有する絶縁電線及び当該耐熱難燃性ゴム組成物からなり電離放射線を照射してなるゴムチューブ。
【選択図】 なし
Description
・フッ化ビニリデン−ヘキサフルオロプロピレン共重合体(表中では「二元FKM」と示す):バイトンA200(デュポンダウエラストマー社製)
・フッ化ビニリデン−ヘキサフルオロプロピレン−テトラフルオロエチレン共重合体(表中では「三元FKM」と示す):バイトンB202(デュポンダウエラストマー社製)
・フッ化ビニリデン重合体(表中では「PVdFホモポリマー」と示す):カイナー720(アルケマ社製)
・フッ化ビニリデン−ヘキサフルオロプロピレン共重合体(表中では「PVdFコポリマー」と示す):カイナー2800(アルケマ社製、ヘキサフルオロプロピレン含有率約5質量%)
・重質炭酸カルシウム:ソフトン2200(白石カルシウム社製)
・タルク:シムゴンタルク(日本タルク社製)
・クレー:NNカオリンクレー(竹原化学工業社製)
表1又は表2に示す配合(表中では質量部で表す。)をオープンロールにて混練し、ペレタイザによってペレット化した。このペレットについて、下記の方法で粘着性の評価を行った。得られたペレットを電線被覆用押出機に供給して、押出機により、0.5SQ(TA19/0.19)の導体(銅線:導体外径0.95mmφ)に、被覆の厚み:0.375mm、電線仕上り外径:1.7mmで押出し被覆した。
得られた絶縁電線から導体を引き抜いて絶縁被覆だけにしたものについて、JIS C 3005(1986)に準拠して引張強度及び引張伸びを測定した。
[柔軟性]
JIS C 3005(1986)に準拠して引張伸び、引張応力を測定し、引張伸び2%における引張応力を50倍したものをセカントモジュラスと定義して柔軟性の指標とした。セカントモジュラスはヤング率に近い値になる。セカントモジュラスの測定値を表1、2に示し、100MPa以下を合格とした。
得られた絶縁電線を、ISO6722規格に従い、350mmの長さに切って両端の絶縁25mmを剥ぎ取り、200℃の恒温槽に3000時間放置した後、絶縁外径の1.5倍、すなわち2.55mmφのロッドに3回巻き付けた。その後、絶縁電線に1kVの電圧を1分間印加する耐圧試験を行い、絶縁破壊や絶縁被覆のヒビ割れの状態を観察した。その結果を、表1、2中に次の基準で示した。
絶縁破壊有り: × 絶縁破壊はなかった: ○
ヒビ割れが見られる: × ヒビ割れは観察されなかった: ○
ISO6722規格に従い、600mmの長さに絶縁電線を切断し、45度の角度で両端を固定し、絶縁電線に直交するようにバーナーの炎があたるようにした。炎は外炎長さ100mm、内炎長さ50mmになるよう調整し、内炎の先端に絶縁電線が当たるようにした。そして、導体が露出するまで接炎した。但し、15秒接炎しても導体が露出しない場合は接炎を終了した。70秒以内に消火し、かつ、上方への延焼長さが450mm以内であれば○、これらを超える場合には×とした。
前記で得られた絶縁電線を70℃の温水に2時間浸漬した後、絶縁被覆の体積固有抵抗値(Ω・cm)を、体積固有抵抗測定装置にて、100VDC以上で測定した。その測定値を表1、2中に示した。
得られた絶縁電線を、ISO6722のMethodIIの方法に従い、市販のエンジンオイルに室温で20時間浸漬した後、外径変化率を測定した。その後、1kV1分間の耐圧試験を水中で行った。外径変化率が15%以下で絶縁破壊がない場合を合格とし、表1、2中の○で示した。
得られた絶縁電線を、ISO6722規格に従い−40℃で4時間放置後、絶縁外径の1.5倍、すなわち2.55mmφのロッドに巻き付け、絶縁電線に1kVの電圧を1分間印加する耐圧試験を行い、絶縁破壊や絶縁被覆のヒビ割れの状態を観察した。その結果を、表1、2中に次の基準で示した。
絶縁破壊有り: × 絶縁破壊はなかった: ○
ヒビ割れが見られる: × ヒビ割れは観察されなかった: ○
前記で得られたペレットを、40℃で1日間放置し、ペレット間の粘着の有無を観察した。その結果を、表1、2中に次の基準で示した。
固着無し、あるいは、手で容易にほぐせる場合: ○
固着があり、手で容易にほぐせない場合: ×
Claims (4)
- (A)フッ化ビニリデン−ヘキサフルオロプロピレン系共重合体ゴム及び/又はフッ化ビニリデン−ヘキサフルオロプロピレン−テトラフルオロエチレン系共重合体ゴムと(B)ポリフッ化ビニリデンとを、90:10〜60:40(質量比)で混合した混合物、及び無機充填剤を含有し、前記混合物100質量部に対する前記無機充填剤の配合量が10〜100質量部であることを特徴とする耐熱難燃性ゴム組成物。
- 無機充填剤が、炭酸カルシウム及びタルクから選ばれることを特徴とする請求項1に記載の耐熱難燃性ゴム組成物。
- 導体上に、請求項1又は請求項2に記載の耐熱難燃性ゴム組成物を塗布し、電離放射線を照射してなる絶縁被覆を有することを特徴とする絶縁電線。
- 請求項1又は請求項2に記載の耐熱難燃性ゴム組成物をチューブ状に成型し、電離放射線を照射してなることを特徴とするゴムチューブ。
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JP2013006412A JP6065341B2 (ja) | 2013-01-17 | 2013-01-17 | 耐熱難燃性ゴム組成物及び絶縁電線、ゴムチューブ |
US14/428,468 US20150232653A1 (en) | 2013-01-17 | 2013-09-19 | Heat-resistant flame-retardant rubber composition, insulated wire and rubber tube |
PCT/JP2013/075308 WO2014112156A1 (ja) | 2013-01-17 | 2013-09-19 | 耐熱難燃性ゴム組成物及び絶縁電線、ゴムチューブ |
CN201380043488.XA CN104903397B (zh) | 2013-01-17 | 2013-09-19 | 耐热阻燃橡胶组合物、绝缘线和橡胶管 |
MYPI2015700303A MY169400A (en) | 2013-01-17 | 2013-09-19 | Heat-resistant flame-retardant rubber composition, insulated wire and rubber tube |
PH12015500168A PH12015500168A1 (en) | 2013-01-17 | 2015-01-26 | Heat-resistant flame-retardant rubber composition, insulated wire and rubber tube |
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WO2020158854A1 (ja) * | 2019-01-31 | 2020-08-06 | 株式会社 潤工社 | 引き裂き性を有する熱収縮チューブ |
JP2021045954A (ja) * | 2019-01-31 | 2021-03-25 | 株式会社潤工社 | 引き裂き性を有する熱収縮チューブ |
WO2021161620A1 (ja) * | 2020-02-13 | 2021-08-19 | 住友電気工業株式会社 | 熱収縮チューブ |
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AR099038A1 (es) | 2014-01-08 | 2016-06-22 | General Cable Tech Corp | Conductor aéreo recubierto |
NZ742253A (en) * | 2015-11-13 | 2022-07-01 | Gen Cable Technologies Corp | Cables coated with fluorocopolymer coatings |
CN112920605A (zh) * | 2020-11-10 | 2021-06-08 | 金冠电气股份有限公司 | 一种粘接聚对苯二甲酸丁二醇酯用的硅橡胶复合材料 |
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JP6065341B2 (ja) | 2017-01-25 |
MY169400A (en) | 2019-03-27 |
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