JP2009144137A - 可塑剤、可塑剤を含有する生分解性材料、及びそれらの利用方法 - Google Patents
可塑剤、可塑剤を含有する生分解性材料、及びそれらの利用方法 Download PDFInfo
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- JP2009144137A JP2009144137A JP2008262889A JP2008262889A JP2009144137A JP 2009144137 A JP2009144137 A JP 2009144137A JP 2008262889 A JP2008262889 A JP 2008262889A JP 2008262889 A JP2008262889 A JP 2008262889A JP 2009144137 A JP2009144137 A JP 2009144137A
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Abstract
【解決手段】生分解性ポリマーのモノマーをバイオ分子と混合し、前記混合物を加熱処理することによって可塑剤が調製される。本発明の可塑剤からなる生分解性材料は加熱工程に貢献する高い溶融指数を有する。前記材料はその耐マイクロ波性及び耐水性により、食品包装材として好適である。
【選択図】図1
Description
本発明の更に別の目的は、二つの基材を接着するための、紙、木、プラスチック、又は金属基材の接着材料を提供することにある。
本発明の生分解性材料は、熱圧着によって二物体を接着することができる。したがって、本発明は更に、上述した生分解性材料前駆体を熱圧着して得られる接着材料を提供する。前記接着材料は熱圧着によって二つの表面を接着することを特徴とする。
本実施形態は以下の4種類の可塑剤の調製を含む。
例1
植物性ゼラチン5g(ベジタブル・ハード・シェル・カプセル(vegetable hard shell capsule)#0、大豊カプセルインダストリー社(Dah Feng Capsule Industry Co.,Ltd.)製)を水5gと混合し、80℃で1時間放置して本発明の可塑剤(A001)を得た。
植物性ゼラチン5g(ベジタブル・ハード・シェル・カプセル#0、大豊カプセルインダストリー社製)を乳酸モノマー5gと混合し、130℃で4時間放置して本発明の可塑剤(A002)を得た。
動物性ゼラチン5g(ゼラチン260B、ビルドモア・エンタープライズ社(Buildmore Enterprise Co.,Ltd.)製)を水5gと混合し、80℃で1時間放置して本発明の可塑剤(A003)を得た。
動物性ゼラチン5g(ゼラチン260B、ビルドモア・エンタープライズ社製)を乳酸モノマー5gと混合し、130℃で4時間放置して本発明の可塑剤(A004)を得た。
本実施形態は以下の4種類の生分解性材料の調製を含む。
例1
実施例1の可塑剤(A001)10gをポリ乳酸(PLA)500gに加え、190℃のラミネート加工工程によって、図1に示されるような薄膜(PLA/A001)の生分解性材料を得た。
実施例1の可塑剤(A002)10gをポリ乳酸(PLA)500gに加え、250℃のラミネート加工工程によって、薄膜(PLA/A002)の生分解性材料を得た。
実施例1の可塑剤(A003)10gをポリ乳酸(PLA)500gに加え、250℃のラミネート加工工程によって、薄膜(PLA/A003)の生分解性材料を得た。
実施例1の可塑剤(A004)10gをポリ乳酸(PLA)500gに加え、190℃のラミネート加工工程によって、薄膜(PLA/A004)の生分解性材料を得た。
本実施形態は、本発明の効果を説明するために生分解性材料の特性について試験した結果を含む。
PLAの溶融指数は4〜8である。本発明の可塑剤を添加すると、前記PLA溶融指数は32〜79に上昇する(実施例2の4種類の生分解性材料における測定値)。溶融指数の上昇は、本発明の可塑剤の添加が実施例2のラミネート加工工程等のPLA製造に貢献するものであることを示している。
本実施形態のコンタクトアングルは、グラシン紙表面の水滴のコンタクトアングルを測定することによって調べられた。グラシン紙表面を変性させない場合、コンタクトアングルは40.25°であるが(図2(A))、ロッドコートによってグラシン紙表面に生分解性材料PLA/A004が形成されると、コンタクトアングルは70.89°に上昇する(図2(B))。対照試験のデータとして、低濃度ポリエチレン(LDPE)を被膜したグラシン紙のコンタクトアングルは60.93°である(図2(C))。これらのコンタクトアングルの結果から、本発明の生分解性材料は表面疎水性を高めることが明らかとなった。
生分解性材料PLA/A004が形成され、薄膜として生分解性食品容器(紙製)の表面に被覆された。その後、高出力マイクロ波(750W)に3分間照射されたが、薄膜の剥落は全く確認されなかった。マイクロ波照射の後、前記容器の80%コンフルエンスまで水が加えられ、冷凍室に4時間放置され、室温で解凍されたが、薄膜の剥落は全く確認されなかった。その後、紙表面から前記薄膜が剥がされると、紙表面にいくつかの繊維残渣が確認された。このことは、前記薄膜と紙との間の接着が試験の前後で変化しなかったことを示している。
生分解性材料PLA/A004が紙と木の間に挟まれて結合され(紙/生分解性材料/木)、試験方法規格JIS K5400に準ずる接着試験が行われた。対照試験として、紙/LDPE/木について同条件で試験が行われた。接着試験結果は、LDPEでは4であり、本発明の生分解性材料では8である。この結果は、本発明の生分解性材料によって形成された薄膜が他の天然生分解性材料によく接着することを示している。
実施例2における生分解性材料のポリマー特性が対照例のPLAのポリマー特性と比較され、その結果が下記の表に示されている。
本明細書に記載された全ての技術的特長は他の工程と組み合わせてもよく、各単一の技術的特長は、それらの意図する特徴と等しい、同等の、又は類似する特徴によって選択的に置き換えられてもよい。したがって、本明細書に記載された各技術的特長は、それらの意図する特徴と同等の、又は類似する特徴の一例に過ぎない。
Claims (19)
- 100重量部のバイオ分子、及び
0.1〜1000重量部の生分解性ポリマーの前駆体モノマー又はオリゴマー、水、又はそれらの混合物からなり、
前記バイオ分子及び前記生分解性ポリマーの前駆体モノマーが、混合後に50〜160℃で加熱処理される生分解性材料の可塑剤。 - 100重量部のバイオ分子、及び
0.1〜200重量部の生分解性ポリマーの前駆体モノマー又はオリゴマー、水、又はそれらの混合物からなり、
前記バイオ分子及び前記生分解性ポリマーの前駆体モノマーが、混合後に50〜160℃で加熱処理される請求項1に記載の可塑剤。 - 前記バイオ分子が、植物性ゼラチン、動物性タンパク質、アガー、キトサン、ヒアルロン酸、又はそれらの混合物を含む請求項1に記載の可塑剤。
- 前記動物性タンパク質が、動物性ゼラチン又はコラーゲンを含む請求項3に記載の可塑剤。
- 前記生分解性ポリマーが、生分解性ポリエルテル又は生分解性ポリエチレン又はそれらのコポリマーを含む請求項1に記載の可塑剤。
- 前記生分解性ポリエステルが、ポリグリコール酸、ポリ乳酸、ポリカプロラクトン、ポリヒドロキシブチラート、ポリヒドロキシバレレート、ポリヒドロキシ吉草酸、ポリ(ブチレンサクシネート)、又はそれらのコポリマーを含む請求項5に記載の可塑剤。
- 前記生分解性ポリエチレンが、ポリビニルアセテート、ポリビニルアルコール、ポリ−p−ジオキサノン、又はそれらのコポリマーを含む請求項5に記載の可塑剤。
- 前記加熱処理の温度が、80〜130℃である請求項1に記載の可塑剤。
- 生分解性ポリマーの強固性、及び/又は耐衝撃性、及び/又は粘着性、及び/又は可塑性を調節するための請求項1に記載の可塑剤の利用方法。
- 100重量部の生分解性ポリマー、及び
0.1〜50重量部の請求項1に記載の可塑剤からなる生分解性材料前駆体。 - 100重量部の生分解性ポリマー、及び
0.1〜20重量部の請求項1に記載の可塑剤からなる請求項10に記載の生分解性材料前駆体。 - 前記生分解性ポリマーが、ポリグリコール酸、ポリ乳酸、ポリカプロラクトン、ポリヒドロキシブチラート、ポリヒドロキシバレレート、ポリヒドロキシ吉草酸、ポリビニルアセテート、ポリ(ブチレンサクシネート)、ポリビニルアルコール、ポリ−p−ジオキサノン又はそれらのコポリマーを含む請求項10に記載の生分解性材料前駆体。
- 請求項10に記載の生分解性材料前駆体を加熱処理して得られる生分解性材料。
- 前記加熱処理の温度が、80〜130℃である請求項13に記載の生分解性材料。
- 前記加熱処理の温度が、160〜280℃である請求項13に記載の生分解性材料。
- 前記加熱処理の温度が、190〜250℃である請求項15に記載の生分解性材料。
- 請求項10に記載の生分解性材料前駆体を加熱処理して得られる接着材料であって、熱圧着によって二つの表面を接着することを特徴とする接着材料。
- 前記表面の材料が、同じ、又は異なる材料である請求項17に記載の接着材料。
- 前記表面の材料が、紙、木、又は金属を含む請求項18に記載の接着材料。
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EP2445965B1 (en) | 2009-06-26 | 2018-08-08 | CJ CheilJedang Corporation | Method of making an article from composition comprising pha and pbs |
ES2879250T3 (es) | 2012-06-05 | 2021-11-22 | Cj Cheiljedang Corp | Mezclas poliméricas biodegradables |
CH707206A2 (de) * | 2012-11-13 | 2014-05-15 | Roweg Holding Ag C O Guy Petignat | Wattestäbchen. |
CN108463506A (zh) | 2015-11-17 | 2018-08-28 | Cj第制糖株式会社 | 具有可控生物降解速率的聚合物共混物 |
CN108752938A (zh) * | 2018-06-21 | 2018-11-06 | 宁波沸柴机器人科技有限公司 | 一种食品包装膜及其制备和应用 |
CN111409346B (zh) * | 2020-04-28 | 2022-08-30 | 睿泊(中国)环保科技有限公司 | 一种可降解薄膜及其制备方法 |
CN114276658B (zh) * | 2021-12-07 | 2023-05-26 | 杭州人民环保科技有限公司 | 一种可降解材料及其制备方法、纸杯 |
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US8901210B2 (en) | 2014-12-02 |
TW200925202A (en) | 2009-06-16 |
DE102008035272A1 (de) | 2009-06-18 |
US20090149570A1 (en) | 2009-06-11 |
FR2924717B1 (fr) | 2013-01-04 |
GB2455595B (en) | 2012-02-15 |
GB2455595A (en) | 2009-06-17 |
US20120088852A1 (en) | 2012-04-12 |
FR2924717A1 (fr) | 2009-06-12 |
JP4906827B2 (ja) | 2012-03-28 |
IT1390893B1 (it) | 2011-10-19 |
US20140094544A1 (en) | 2014-04-03 |
US8623944B2 (en) | 2014-01-07 |
ITRM20080408A1 (it) | 2009-06-12 |
TWI352717B (en) | 2011-11-21 |
GB0813238D0 (en) | 2008-08-27 |
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