JPWO2020101029A1 - 樹脂組成物、光ファイバ及び光ファイバの製造方法 - Google Patents
樹脂組成物、光ファイバ及び光ファイバの製造方法 Download PDFInfo
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- JPWO2020101029A1 JPWO2020101029A1 JP2020556198A JP2020556198A JPWO2020101029A1 JP WO2020101029 A1 JPWO2020101029 A1 JP WO2020101029A1 JP 2020556198 A JP2020556198 A JP 2020556198A JP 2020556198 A JP2020556198 A JP 2020556198A JP WO2020101029 A1 JPWO2020101029 A1 JP WO2020101029A1
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- 239000013307 optical fiber Substances 0.000 title claims description 42
- 238000000034 method Methods 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 5
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- 239000011347 resin Substances 0.000 claims abstract description 113
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 93
- 239000002245 particle Substances 0.000 claims abstract description 56
- 229910052809 inorganic oxide Inorganic materials 0.000 claims abstract description 49
- 239000000178 monomer Substances 0.000 claims abstract description 24
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 13
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 13
- 239000003999 initiator Substances 0.000 claims abstract description 13
- 238000012986 modification Methods 0.000 claims abstract description 13
- 230000004048 modification Effects 0.000 claims abstract description 13
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 239000003365 glass fiber Substances 0.000 claims description 17
- 239000011164 primary particle Substances 0.000 claims description 10
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 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 3
- 239000000463 material Substances 0.000 claims description 3
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 claims description 3
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- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 5
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- 238000005119 centrifugation Methods 0.000 description 4
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910000077 silane Inorganic materials 0.000 description 4
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 3
- QPRQEDXDYOZYLA-UHFFFAOYSA-N 2-methylbutan-1-ol Chemical compound CCC(C)CO QPRQEDXDYOZYLA-UHFFFAOYSA-N 0.000 description 3
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- 239000002904 solvent Substances 0.000 description 3
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- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 description 2
- PGMMMHFNKZSYEP-UHFFFAOYSA-N 1,20-Eicosanediol Chemical compound OCCCCCCCCCCCCCCCCCCCCO PGMMMHFNKZSYEP-UHFFFAOYSA-N 0.000 description 2
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 description 2
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 description 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 2
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
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- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
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- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 2
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Abstract
Description
本出願は、2018年11月16日出願の日本出願第2018−215714号に基づく優先権を主張し、前記日本出願に記載された全ての記載内容を援用するものである。
被覆樹脂層は、一般に、プライマリ樹脂層及びセカンダリ樹脂層を備えている。セカンダリ樹脂層を形成する樹脂組成物には、ヤング率を高めることで光ファイバの側圧特性を向上することが求められる。しかしながら、フィラーの含有量を増やすと、樹脂組成物から形成される樹脂層のヤング率を高くできるものの、塗布性が乏しくなり、樹脂層が脆くなる傾向にある。
本開示によれば、セカンダリ樹脂層に求められる高いヤング率を有すると共に、塗布性に優れ、強靱な樹脂層を形成できる光ファイバ被覆用の樹脂組成物、及び、当該樹脂組成物から形成されるセカンダリ樹脂層を備える光ファイバを提供することができる。
最初に、本開示の実施形態の内容を列記して説明する。本開示の一態様に係る樹脂組成物は、ウレタン(メタ)アクリレートオリゴマー、モノマー及び光重合開始剤を含有するベース樹脂と、炭素数1以上8以下のアルキル基又はフェニル基を有する表面修飾無機酸化物粒子とを含み、表面修飾無機酸化物粒子の含有量が、樹脂組成物の総量を基準として1質量%以上60質量%以下であり、表面修飾無機酸化物粒子における表面修飾量が、0.15mg/m2以上である。
本開示の実施形態に係る樹脂組成物及び光ファイバの具体例を、必要により図面を参照しつつ説明する。なお、本発明はこれらの例示に限定されず、請求の範囲によって示され、請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。以下の説明では、図面の説明において同一の要素には同一の符号を付し、重複する説明を省略する。
本実施形態に係る樹脂組成物は、ウレタン(メタ)アクリレートオリゴマー、モノマー及び光重合開始剤を含有するベース樹脂と、炭素数1以上8以下のアルキル基又はフェニル基を有する表面修飾無機酸化物粒子とを含む。
本実施形態に係る表面修飾無機酸化物粒子は、無機酸化物粒子の表面が炭素数1以上8以下のアルキル基又はフェニル基を有するシラン化合物により処理され、無機酸化物粒子の表面に炭素数1以上8以下のアルキル基又はフェニル基が導入されている。すなわち、表面修飾無機酸化物粒子は、無機成分と有機成分とから構成されている。
本実施形態に係るベース樹脂は、ウレタン(メタ)アクリレートオリゴマー、モノマー及び光重合開始剤を含有する。
図1は、本実施形態に係る光ファイバの一例を示す概略断面図である。光ファイバ10は、コア11及びクラッド12を含むガラスファイバ13と、ガラスファイバ13の外周に設けられたプライマリ樹脂層14及びセカンダリ樹脂層15を含む被覆樹脂層16とを備えている。
(オリゴマー)
オリゴマーとして、分子量600のポリプロピレングリコール、2,4−トリレンジイソシアネート及びヒドロキシエチルアクリレートを反応させることにより得られたウレタンアクリレートオリゴマーと、エポキシアクリレートオリゴマーとを準備した。
モノマーとして、イソボルニルアクリレート(大阪有機化学工業株式会社の商品名「IBXA」)、トリプロピレングリコールジアクリレート(ダイセル・オルネクス株式会社の商品名「TPGDA」)及び2−フェノキシエチルアクリレート(共栄化学株式会社の商品名「ライトアクリレートPO−A」)を準備した。
光重合開始剤として、1−ヒドロキシシクロヘキシルフェニルケトン及び2,4,6−トリメチルベンゾイルジフェニルホスフィンオキシドを準備した。
ウレタンアクリレートオリゴマーを45質量部、エポキシアクリレートを13.4質量部、アクリル酸イソボルニルを9質量部、トリプロピレングリコールジアクリレートを22.5質量部、2−フェノキシエチルアクリレートを10質量部、1−ヒドロキシシクロヘキシルフェニルケトンを0.05質量部、2,4,6−トリメチルベンゾイルジフェニルホスフィンオキシドを0.05質量部混合して、ベース樹脂を調製した。
表面修飾無機酸化物粒子として、表1に示す化合物で表面処理されているシリカ粒子(以下、単に「シリカ粒子」という。)を含むシリカゾル(MEK分散液)を準備した。
ベース樹脂と、シリカゾルとを混合した後、MEKの大部分を除去して、樹脂組成物中のシリカ粒子の含有量が表1に示す値となる樹脂組成物を調製した。
樹脂組成物にクロロホルムを加えて遠心分離を行い、沈殿物を回収した。沈殿物にアセトンを加えて遠心分離を行い、上澄みを除去した後、沈殿物に再度アセトンを加えて遠心分離、上澄み除去を行う操作を4回行い、シリカ粒子を取り出した。乳鉢ですりつぶしたシリカ粒子を室温で12時間減圧乾燥して揮発分を除去した。遠心分離は、30000rpmで120分間の条件で行った。乾燥後のシリカ粒子を80℃で12時間減圧処理し、細孔分布測定装置(マイクロメリティクス製の「ASAP−2020」)を用いて、窒素吸着BET法によりシリカ粒子の比表面積(m2/g)を測定した。
表面修飾量(mg/m2)=有機成分の割合/比表面積
ベース樹脂を樹脂組成物として用いた。
樹脂組成物の45℃における粘度を、B型粘度計(ブルックフィ−ルド社製の「デジタル粘度計DV−II」、使用スピンドル:No.18、回転数:10rpm)を用いて測定した。
スピンコータを用いて、実施例又は比較例で得られた樹脂組成物をポリエチレンテレフタレート(PET)フィルムの上に塗布した後、無電極UVランプシステム(ヘレウス製の「VPS600(Dバルブ)」)を用いて、1000±100mJ/cm2の条件で硬化させ、PETフィルム上に厚み200±20μmの樹脂層を形成した。樹脂層をPETフィルムから剥がし、樹脂フィルムを得た。
分子量4000のポリプロピレングリコール、イソホロンジイソシアネート、ヒドロキシエチルアクリレート及びメタノールを反応させることにより得られるウレタンアクリレートオリゴマーを準備した。ウレタンアクリレートオリゴマー75質量部、ノニルフェノールEO変性アクリレート12質量部、N−ビニルカプロラクタム6質量部、1,6−ヘキサンジオールジアクリレート2質量部、2,4,6−トリメチルベンゾイルジフェニルホスフィンオキシド1質量部、及び3−メルカプトプロピルトリメトキシシラン1質量部を混合して、プライマリ樹脂層用の樹脂組成物A1を得た。
作製された光ファイバについて、断線の有無及び樹脂層の割れの有無を確認することで、樹脂組成物の塗布性を評価した。断線及び樹脂層の割れが無い場合を「A」とし、断線が有り、樹脂層に割れが無い場合を「B」とし、断線が有り、樹脂層に割れが生じた場合を「C」とした。樹脂組成物の粘度が高すぎると、セカンダリ樹脂層を形成する際の被覆径が安定せずに断線し易くなる。一方、樹脂組成物の粘度が低すぎると、自己調芯力が働きにくく、偏肉が発生し易くなる。
Claims (8)
- ウレタン(メタ)アクリレートオリゴマー、モノマー及び光重合開始剤を含有するベース樹脂と、炭素数1以上8以下のアルキル基又はフェニル基を有する表面修飾無機酸化物粒子と、を含む樹脂組成物であり、
前記表面修飾無機酸化物粒子の含有量が、前記樹脂組成物の総量を基準として1質量%以上60質量%以下であり、
前記表面修飾無機酸化物粒子における表面修飾量が、0.15mg/m2以上である、光ファイバ被覆用の樹脂組成物。 - 前記表面修飾量が0.15mg/m2以上2.5mg/m2以下である、請求項1に記載の樹脂組成物。
- 前記アルキル基が、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基及びオクチル基からなる群より選ばれる少なくとも1種の基である、請求項1又は請求項2に記載の樹脂組成物。
- 前記表面修飾無機酸化物粒子の平均一次粒径が、800nm以下である、請求項1から請求項3のいずれか一項に記載の樹脂組成物。
- 粘度が、45℃で300mPa・s以上5000mPa・s以下である、請求項1から請求項4のいずれか一項に記載の樹脂組成物。
- 請求項1から請求項5のいずれか一項に記載の樹脂組成物を含む、光ファイバのセカンダリ被覆材料。
- コア及びクラッドを含むガラスファイバと、
前記ガラスファイバに接して該ガラスファイバを被覆するプライマリ樹脂層と、
前記プライマリ樹脂層を被覆するセカンダリ樹脂層と、を備え、
前記セカンダリ樹脂層が、請求項1から請求項5のいずれか一項に記載の樹脂組成物の硬化物からなる、光ファイバ。 - コア及びクラッドを含むガラスファイバの外周に、請求項1から請求項5のいずれか一項に記載の樹脂組成物を塗布する塗布工程と、
前記塗布工程の後に紫外線を照射することにより前記樹脂組成物を硬化させる硬化工程と、
を含む、光ファイバの製造方法。
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BR112012012500B1 (pt) * | 2009-11-26 | 2019-07-02 | Prysmian S.P.A. | Fibra óptica |
JP2014219550A (ja) | 2013-05-08 | 2014-11-20 | 住友電気工業株式会社 | 光ファイバ心線 |
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EP3882288A1 (en) | 2021-09-22 |
CN113039226B (zh) | 2023-07-25 |
WO2020101029A1 (ja) | 2020-05-22 |
JP7367697B2 (ja) | 2023-10-24 |
EP3882288A4 (en) | 2021-12-29 |
US20210024772A1 (en) | 2021-01-28 |
CN113039226A (zh) | 2021-06-25 |
KR20210093280A (ko) | 2021-07-27 |
TWI820253B (zh) | 2023-11-01 |
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EP3882288B1 (en) | 2024-06-26 |
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