JP2006182887A - 帯電防止性に優れたポリ乳酸系二軸延伸フィルム - Google Patents
帯電防止性に優れたポリ乳酸系二軸延伸フィルム Download PDFInfo
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- JP2006182887A JP2006182887A JP2004377051A JP2004377051A JP2006182887A JP 2006182887 A JP2006182887 A JP 2006182887A JP 2004377051 A JP2004377051 A JP 2004377051A JP 2004377051 A JP2004377051 A JP 2004377051A JP 2006182887 A JP2006182887 A JP 2006182887A
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Abstract
【解決手段】ポリ乳酸系樹脂に、(A)ジアルキルスルホコハク酸塩90〜10質量%と(B)グリセリンステアリン酸エステルと硼酸との反応物10〜90質量%とを含む界面活性剤組成物を0.1〜10質量%含有させたことを特徴とする。
【選択図】なし
Description
ここで一般式(1)のR1及びR2は同一もしくは異なるアルキル基であり、R1及びR2の炭素数は6〜20が望ましく、更に好ましくは8〜16である。具体的には、ジアルキルスルホコハク酸塩として、ジオクチルスルホコハク酸塩(R1、R2の炭素数8)が好適に使用できる。−SO3Mで示される塩としては、ナトリウム、カリウム、カルシウム、マグネシウム等のアルカリ金属、アルカリ土類金属、又はジエタノールアミン、トリエタノールアミン等のスルホン酸塩が好適に使用できる。
以下、本発明を実施例により説明するが、本発明は下記実施例により制限されるものでない。
L−乳酸とD−乳酸とをL体/D体=99/1(モル比)で含有し、数平均分子量が95,000、MFRが5.0g/10分(210℃)であるポリ乳酸樹脂(カーギル・ダウ社製、ネイチャーワークス)を用意した。また、((A)−1)ジオクチルスルホコハク酸ナトリウム80質量%と、((B)−1)グリセリンモノステアレートと硼酸との反応物(反応モル比(グリセリンモノステアレート:硼酸)1:0.5)20質量%とを配合した界面活性剤組成物を得た。
マスターバッチの種類(界面活性剤(A),(B)の種類、配合割合)及びその添加量(界面活性剤組成物含有量)を表1に示すように変更する以外には、実施例1と同様にして逐次二軸延伸フィルムを得た。
実施例1と同様のポリ乳酸樹脂90質量%にマスターバッチaを10質量%添加し、コートハンガータイプのTダイを具備した50mmφ押出機を使用して、滞留時間5分、Tダイ温度230℃で溶融押出し、25℃に温度制御されたキャストロールに密着急冷し、厚さ150μmの未延伸シートを得た。続いて、予熱80℃、延伸78℃のテンターへ未延伸シートを導入し、面倍率10倍にて延伸後、弛緩率4%、熱固定温度150℃にて熱処理を行い、厚み15μmの同時二軸延伸フィルムを得た。
マスターバッチの種類(界面活性剤(A),(B)の種類、配合割合)及びその添加量(界面活性剤組成物含有量)を表1に示すように変更する以外には、実施例1と同様にして逐次二軸延伸フィルムを得た。
(A)−2:ジラウリルスルホコハク酸ナトリウム
(B)−1:グリセリンモノステアレートと硼酸との反応物(反応モル比(グリセリンモノステアレート:硼酸)1:0.5)
(B)−2:グリセリンモノステアレートと硼酸との反応物(反応モル比(グリセリンモノステアレート:硼酸)1:1.0)
表面固有抵抗値を、温度23℃、相対湿度50%の条件下に1日放置した後、同条件下でJIS−K6911に準じて測定装置(製造元;川口電気製作所、機器名;超絶縁計(型式P−616))を用いて測定した。本発明においては、生産(フィルム製造)に支障が生じなかったものを合格(帯電防止性能に優れるもの)とした。
温度23℃、相対湿度50%の条件下に1日放置した後、同条件下でインテックス社製の摩擦耐電圧測定器(型式:EC−3N)にて綿/ポリエステル=60/40の白布とフィルムのコロナ処理面とを接触させ、60秒間の最高耐電圧を評価した。本発明においては、3kv以下を合格とした。
JIS−K7127の測定法に準じて、長さ10cm、幅10mmの試料で測定した。
Claims (1)
- ポリ乳酸系樹脂に、(A)ジアルキルスルホコハク酸塩90〜10質量%と(B)グリセリンステアリン酸エステルと硼酸との反応物10〜90質量%とを含む界面活性剤組成物を0.1〜10質量%含有させたことを特徴とする帯電防止性に優れたポリ乳酸系二軸延伸フィルム。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017119837A (ja) * | 2015-12-24 | 2017-07-06 | 松本油脂製薬株式会社 | 熱可塑性樹脂用帯電防止剤及びそれを含有する熱可塑性樹脂組成物 |
CN113481629A (zh) * | 2021-08-02 | 2021-10-08 | 苏州金泉新材料股份有限公司 | 一种皮芯型聚乳酸烟用丝束及其制备方法 |
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JP2004263158A (ja) * | 2003-02-28 | 2004-09-24 | Toho Chem Ind Co Ltd | 帯電防止性ポリ乳酸系樹脂組成物 |
WO2005103160A1 (ja) * | 2004-04-26 | 2005-11-03 | Toho Chemical Industry Co., Ltd. | 生分解性樹脂組成物 |
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JPH02206636A (ja) * | 1989-02-03 | 1990-08-16 | Chisso Corp | 洗浄用樹脂組成物 |
JPH09255826A (ja) * | 1996-03-27 | 1997-09-30 | Mitsui Petrochem Ind Ltd | プロピレン系ポリマー組成物および成形体 |
JPH1036650A (ja) * | 1996-07-19 | 1998-02-10 | Mitsui Petrochem Ind Ltd | 高分子組成物 |
JP2001011261A (ja) * | 1999-07-01 | 2001-01-16 | Idemitsu Petrochem Co Ltd | 結晶性ポリプロピレン樹脂組成物及びそれを成形してなる成形体 |
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JP2004263158A (ja) * | 2003-02-28 | 2004-09-24 | Toho Chem Ind Co Ltd | 帯電防止性ポリ乳酸系樹脂組成物 |
WO2005103160A1 (ja) * | 2004-04-26 | 2005-11-03 | Toho Chemical Industry Co., Ltd. | 生分解性樹脂組成物 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017119837A (ja) * | 2015-12-24 | 2017-07-06 | 松本油脂製薬株式会社 | 熱可塑性樹脂用帯電防止剤及びそれを含有する熱可塑性樹脂組成物 |
CN113481629A (zh) * | 2021-08-02 | 2021-10-08 | 苏州金泉新材料股份有限公司 | 一种皮芯型聚乳酸烟用丝束及其制备方法 |
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