JP2016523312A - 電圧安定化ポリマー組成物 - Google Patents
電圧安定化ポリマー組成物 Download PDFInfo
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- JP2016523312A JP2016523312A JP2016523785A JP2016523785A JP2016523312A JP 2016523312 A JP2016523312 A JP 2016523312A JP 2016523785 A JP2016523785 A JP 2016523785A JP 2016523785 A JP2016523785 A JP 2016523785A JP 2016523312 A JP2016523312 A JP 2016523312A
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- Prior art keywords
- polymer
- polymer composition
- ethylene
- poly
- olefin
- Prior art date
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- Granted
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- 229920000642 polymer Polymers 0.000 title claims abstract description 101
- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 230000000087 stabilizing effect Effects 0.000 title description 3
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- 125000003118 aryl group Chemical group 0.000 claims abstract description 10
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 125000004181 carboxyalkyl group Chemical group 0.000 claims abstract description 5
- 125000001424 substituent group Chemical group 0.000 claims abstract description 5
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- 125000000217 alkyl group Chemical group 0.000 claims description 7
- DROMNWUQASBTFM-UHFFFAOYSA-N dinonyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCCC DROMNWUQASBTFM-UHFFFAOYSA-N 0.000 claims description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 2
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- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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Abstract
Description
本願は、2013年6月26日に出願された米国仮出願第61/839,422号の利益を主張する。
ポリ−α−オレフィンポリマーと、
少なくとも1つの芳香環及び1〜2つのカルボキシルアルキルエステル置換基を含む有機カルボキシルエステルと、を含む。
導体と、
誘電性絶縁層であって、
ポリ−α−オレフィンポリマー、及び
トリオクチルトリメリテートを含む、誘電性絶縁層とを含み、
該トリオクチルトリメリテートは、該ポリ−α−オレフィンポリマー及び該トリオクチルトリメリテートの合計重量に基づき、0.1〜1重量パーセントの範囲の濃度で存在する。
本明細書において有用なポリマー成分は、ポリ−α−オレフィンポリマーを含む。好適なポリ−α−オレフィンの非限定的な例は、ホモポリマー及び1つ以上のC2−C20(すなわち、2〜20個の炭素原子)α−オレフィンを含むコポリマーである。本開示の目的において、エチレンは、α−オレフィンとみなされる。好適なα−オレフィンの非限定的な例としては、エチレン、プロピレン、イソブチレン、1−ブテン、1−ペンテン、1−ヘキセン、4−メチル−1−ペンテン、及び1−オクテンが挙げられる。好適なポリ−α−オレフィンの非限定的な例としては、エチレン系ポリマー、プロピレン系ポリマー、及びこれらの組み合わせが挙げられる。「エチレン系ポリマー」または「ポリエチレン」、及び同様の用語は、エチレンに由来する少なくとも50モルパーセント(mol%)単位を含むポリマーである。「プロピレン系ポリマー」または「ポリプロピレン」、及び同様の用語は、プロピレンに由来する少なくとも50mol%単位を含むポリマーである。
ポリマー成分に加えて、ポリマー組成物は、電圧安定化剤(「VSA」)も含む。本明細書で使用される「電圧安定化剤」は、電界に曝されると、ポリマー材料に対する損傷を低減する化合物である。理論に拘束されることは望まないが、VSAは、絶縁材料における電気トリーを阻害するため、ないしは別の方法で、高局所磁場(欠損または汚染物質の付近)の有効なスクリーニングを提供し、それによりポリオレフィンに損傷を与える可能性がある注入電子のエネルギー及び/または周波数を低減するために、電子を捕捉または不活性化する可能性があると考えられている。VSAをポリマー成分とブレンドすることにより、トリーを阻害するか、ないしは別の方法で遅延させる。特定の理論により拘束されないが、VSAは、ポリマー成分における欠損を充填及び/または包囲すると考えられ、欠損はトリー発生点である。欠損は、ポリマー成分中に存在する空隙及び/または不純物を含む。
前段のポリマー組成物のいずれも任意に1つ以上の添加剤を含み得る。好適な添加剤の非限定的な例としては、抗酸化剤、安定剤、加工助剤、スコーチ防止剤、及び/または架橋ブースターが挙げられる。抗酸化剤としては、立体障害型または半障害型フェノール、芳香族アミン、脂肪族立体障害型アミン、有機亜リン酸塩、チオ化合物、及びこれらの混合物を挙げることができる。典型的な架橋ブースターは、ビニル基またはアリル基を有する化合物、例えば、トリアリルシアヌレート、トリアリルイソシアヌレート、及びジ−、トリ−、またはテトラ−アクリレートを含み得る。さらなる添加剤としては、難燃添加剤、酸掃酸剤、無機充填剤、水トリー遅延剤、及び他の電圧安定化剤を挙げることができる。
本開示は、本発明のポリマー組成物を含む物品を提供する。ある実施形態では、物品は、導体と、導体上の被覆とを含む。これは、被覆導体を形成する。導体は、単一ケーブルであり得るか、または一緒に束ねられた複数のケーブルであり得る(すなわち、ケーブルコアまたはコア)。被覆導体は、可撓性、半剛性、または剛性であってよい。好適な被覆導体の非限定的な例としては、消費者電子機器用の可撓性配線、電力ケーブル、携帯電話及び/またはコンピュータ用の電力充電器線、コンピュータデータコード、電源コード、家庭電化製品の配線材料、及び消費者電子付属品コードなどの可撓性配線を含む。
絶縁体の「AC絶縁破壊強度」は、絶縁体の一部分が電気的に導電性になる最小電圧であり、以下の試験方法の項に提供される手順に従って測定される。
AC絶縁破壊強度測定
AC絶縁破壊強度測定は、先端半径が1μm(直径0.5mm、長さ1.5インチ)であり、大きい平坦な銅板を備える針を利用する機器を用いて行われる。各試験において、最大15kVの利用可能な電圧までの適用電圧で、または絶縁破壊が検出されるまで増加する階段式ステップランプ法(staircase step ramp method)(30分ごとに1kV)が使用される。「絶縁破壊」は、電源によって読み取られる電圧が設定値の10%を下回って急に降下する点として定義される。このAC絶縁破壊試験手順は、ASTM D3756−97(AC試験)に非常に類似する。AC絶縁破壊強度は、試料が厚さに対して正規化されない電圧である。ASTM法は、適切な標準偏差に関して試料当たり5回の測定を提案しているが、初期の試験は、およそ10回以上の試験が実施されるまで標準偏差が等しくならない一方で、標準誤差はさらに降下し続けることを明らかにした。標準誤差と時間との間の妥協案として、各試料に関して10回の測定が行われ、材料のAC絶縁破壊強度として平均値が提供される。EBD(針の先端の絶縁破壊電界)の値は、以下の方程式を用いて計算される:
ICEA S−94−649−2004基準に列記される高圧時間試験手順に従い、製造されたケーブルが試験される。
ポリエチレン(「PE」)(密度:0.92g/cc;メルトインデックス(I2):2.0g/10分)は、適切な取り込みを確実にするために、電圧安定化添加剤が200℃の標的混合温度及び60rpmで10分間ポリエチレンに溶融混錬された後、Brabender混合ボウル中で溶融フラックスされる。材料は、その後、混合ボウルから取り出され、電気性質評価のために、4インチ×4インチ×0.25インチのスラブに圧縮成形される(200℃で5分間、5,000lb、次いで、200℃で5分間、12,000lbで押圧、次いで、200℃で5分間、20,000lbに押圧)。
実施例1は、Sigma Aldrich Corporation,St.Louis,MO,USAから市販されている0.5重量%のジ−n−フタル酸オクチルを含むLDPEである。この実施例に採用されたLDPEは、The Dow Chemical Company,Midland,MI,USAのLDPE DXM−446である。
1+2押出構成方法を用いて15−kVのケーブルコアを製造するために、比較試料A及び実施例5の組成物が利用される。1/0−19wアルミニウム導体が使用され、目標は、15ミルの導体シールド、175ミルの絶縁材、40ミルの絶縁シールドである。導体シールドが2.5インチの押出機で最初に押出され、続いて、4.5インチ及び3.5インチの押出機で、それぞれ、絶縁材及び絶縁シールドを同時押出し、続いて、乾燥窒素硬化される。電気試験を行う目的のため、重銅メッシュ中性物質が適用される。あらゆる架橋副産物を除去するために、90℃で72時間、予備調整が行われる。しかしながら、物流の問題によりケーブル製造とケーブル試験との間にかなりの時間差があるため、予備調整と老化されないケーブルとの間に相違は予想されない。したがって、特性絶縁破壊強度を計算するために、結果は、集団として分析される。公称絶縁破壊結果が、下の表2に提供される。
Claims (10)
- ポリマー組成物であって、
ポリ−α−オレフィンポリマーと、
少なくとも1つの芳香環及び1〜2つのカルボキシルアルキルエステル置換基を含む有機カルボキシルエステルと、を含む、前記ポリマー組成物。 - 前記ポリ−α−オレフィンポリマーが、エチレン系ポリマーである、請求項1に記載の前記ポリマー組成物。
- 前記エチレン系ポリマーが、低密度ポリエチレンである、請求項2に記載の前記ポリマー組成物。
- 前記ポリ−α−オレフィンポリマーが、架橋される、請求項1〜3のいずれか一項に記載の前記ポリマー組成物。
- 前記有機カルボキシルエステルが、単一芳香環を有する、請求項1〜4のいずれか一項に記載の前記ポリマー組成物。
- 前記芳香環が、ベンゼン環である、請求項5に記載の前記ポリマー組成物。
- 前記カルボキシルアルキルエステル置換基の前記アルキル基が、C6〜C12アルキル基から選択される、請求項1〜6のいずれか一項に記載の前記ポリマー組成物。
- 前記有機カルボキシルエステルが、フタル酸ジオクチル、フタル酸ジノニル、安息香酸ヘキシル、及びこれらの組み合わせからなる群から選択され、前記有機カルボキシルエステルが、前記ポリ−α−オレフィンポリマー及び前記有機カルボキシルエステルの合計重量に基づき、0.1〜2重量パーセントの範囲の量で前記ポリマー組成物に存在する、請求項1〜7のいずれか一項に記載の前記ポリマー組成物。
- 被覆導体であって、
導体と、
誘電性絶縁層と、を含み、
前記誘電性絶縁層が、請求項1〜8のいずれか一項に記載の前記ポリマー組成物を含む、前記被覆導体。 - 被覆導体であって、
導体と、
誘電性絶縁層であって、
ポリ−α−オレフィンポリマーと、
トリオクチルトリメリテートと、を含む誘電性絶縁層と、を含み、
前記トリオクチルトリメリテートが、前記ポリ−α−オレフィンポリマー及び前記トリオクチルトリメリテートの合計重量に基づき、0.1〜1重量パーセントの範囲の濃度で存在する、前記被覆導体。
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伊藤行雄, プラスチック技術全書5 ポリエチレン樹脂(高圧法), vol. 初版, JPN6018009201, 15 April 1971 (1971-04-15), JP, pages 5-8頁,146-148頁 * |
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CA2915044C (en) | 2021-08-03 |
CN105283498B (zh) | 2019-01-25 |
KR20160040523A (ko) | 2016-04-14 |
JP6475706B2 (ja) | 2019-02-27 |
KR102236518B1 (ko) | 2021-04-07 |
BR112015030630A2 (pt) | 2017-07-25 |
US20160096950A1 (en) | 2016-04-07 |
EP3013896B1 (en) | 2019-08-21 |
TW201504309A (zh) | 2015-02-01 |
CA2915044A1 (en) | 2014-12-31 |
KR20200090978A (ko) | 2020-07-29 |
CN105283498A (zh) | 2016-01-27 |
KR102281536B1 (ko) | 2021-07-26 |
JP6637549B2 (ja) | 2020-01-29 |
TWI655234B (zh) | 2019-04-01 |
JP2018172688A (ja) | 2018-11-08 |
WO2014209661A1 (en) | 2014-12-31 |
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