JP6012206B2 - 変性セルロースナノファイバー及び変性セルロースナノファイバーを含む樹脂組成物 - Google Patents
変性セルロースナノファイバー及び変性セルロースナノファイバーを含む樹脂組成物 Download PDFInfo
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- JP6012206B2 JP6012206B2 JP2012051338A JP2012051338A JP6012206B2 JP 6012206 B2 JP6012206 B2 JP 6012206B2 JP 2012051338 A JP2012051338 A JP 2012051338A JP 2012051338 A JP2012051338 A JP 2012051338A JP 6012206 B2 JP6012206 B2 JP 6012206B2
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Description
(2)工程(1)によって得られた変性セルロースナノファイバー(A)と熱可塑性樹脂(B)とを混合する工程、
を含む樹脂組成物の製造方法。
本発明の変性セルロースナノファイバー(A)は、ジアリルアミン由来の構成単位からなるカチオンポリマー化合物によってカチオン変性されたものである。
及びエピクロルヒドリン:
で表される重合物である。
で表される化合物である。
で表される構造が挙げられる。
本発明の変性セルロースナノファイバーの製造方法は、セルロースナノファイバーの一部の水酸基とジアリルアミン由来の構成単位からなるカチオンポリマー化合物とを反応させることにより、セルロースナノファイバーをカチオン変性することを特徴とする。
で表されるジアリルアミン由来の構成単位からなるカチオンポリマー化合物とを反応させて、以下の一般式(4):
が一例として挙げられる変性セルロースナノファイバーを得るものである。
で表される化合物である。
本発明の樹脂組成物は、変性セルロースナノファイバー(A)及び熱可塑性樹脂(B)を含む樹脂組成物を含む。
本発明の樹脂組成物の製造方法は、
(1)セルロースナノファイバーの一部の水酸基とジアリルアミン由来の構成単位からなるカチオンポリマー化合物とを反応させることにより、セルロースナノファイバーをカチオン変性する工程、
(2)工程(1)によって得られた変性セルロースナノファイバー(A)と熱可塑性樹脂(B)とを混合する工程、
を含む。
本発明は、前記の樹脂組成物を用いた成形材料にも関する。
<実施例>
以下、実施例及び比較例を挙げて本発明をさらに詳細に説明するが、本発明はこれらに限定されるものではない。
実施例1
1.カチオン変性処理剤によるCNFのカチオン変性処理
表1に示すカチオン変性処理剤によりセルロースナノファイバー(CNF)のカチオン変性処理を行った。使用したCNFは、ダイセル化学工業株式会社製の「セリッシュ(KY100G)」である。セリッシュ(KY100G)は、コットンリンター等を由来原料として、高剪断力、高衝撃力を作用させることによって、高度に裂解・微細化した、平均繊維径10nm〜10μm、平均繊維長0.4〜0.5mmのCNFである。
微量全窒素分析装置を用いて窒素量(N量)を測定し、セルロースナノファイバー(CNF)へのカチオン変性剤の定着量を算出した。その結果を表3に定着量を示した。
カチオン化ポリマー処理したセルロースナノファイバー(CNF)とポリアミド11(PA11)との複合化を行った。複合化のスキームを表4に示した。
曲げ試験、Izod衝撃試験及び荷重たわみ温度(HDT)試験を行った。試験条件を表7に示す。
試験結果(力学的特性及びHDT(NBはNot Break)の一覧を表8に示す。
実施例2
高圧ホモジナイザーにより解繊された含水セルロースナノファイバー(CNF)を固形分2質量%となるように蒸留水に加え撹拌した。次に分子量約3万のメチルジアリルアミン塩酸塩・エピクロルヒドリン変性重合物をCNF固形分100質量部に対して5、10、30又は50質量部、及び各々に苛性ソーダ(NaOH)をCNF100質量部に対して150質量部添加し、40℃において一時間撹拌した。反応後のスラリーを塩酸により中和、水洗し、カチオン変性セルロースナノファイバー(変性CNF)を得た。
ダイセル化学工業株式会社製の「セリッシュ(KY100G)」を使用した。セリッシュ(KY100G)は、コットンリンター等を由来原料として、高剪断力、高衝撃力を作用させることによって、高度に裂解・微細化した、繊維径10nm〜10μm、平均繊維長0.4〜0.5mmのCNFである。また、その他の実施例及び比較例においてもセリッシュを使用した。
曲げ試験(JIS K-7171):幅10mm、厚さ4mm、長さ80mmの射出成形体を支点間距離64mm、曲げ速度10mm/minにて3点曲げを行った。
高圧ホモジナイザーにより解繊された含水CNFを固形分2質量%となるように蒸留水に加え撹拌した。次に分子量約50万のメチルジアリルアミン塩酸塩・エピクロルヒドリン変性重合物をCNF固形分100質量部に対して5、10、30又は50質量部、及び各々に苛性ソーダ(NaOH)をCNF100質量部に対して150質量部添加し、40℃において一時間撹拌した。反応後のスラリーを塩酸により中和、水洗し、カチオン変性CNFを得た。
高圧ホモジナイザーにより解繊されたCNF 10質量%と熱可塑性樹脂として90質量%のポリアミド11(アルケマ社製リルサンBESNO)(PA11 100質量部に対して、CNF 11.1質量部)を設定温度190℃にて二軸スクリュー混練押出機を用いて複合化した。射出成形機を用いて、複合材料を射出成形体へ加工した。
高圧ホモジナイザーにより解繊された含水CNFを固形分2質量%となるように蒸留水に加え撹拌した。次に分子量約50万のCNFの水酸基と反応性を持たないポリアミン・エピクロルヒドリン変性重合物(TND127):
高圧ホモジナイザーにより解繊された含水CNFを固形分2質量%となるように蒸留水に加え撹拌した。次にグリシジルトリメチルアンモニウムクロライド:
実施例1と同様に、分子量約3万のメチルジアリルアミン塩酸塩・エピクロルヒドリン変性重合物をCNF固形分100質量部に対して5又は30質量部添加して、及び各々に苛性ソーダ(NaOH)をCNF100質量部に対して150質量部添加し、変性CNFを作製した(表13)。得られた変性CNF 10質量%と熱可塑性樹脂として90質量%のアクリロニトリル−ブタジエン−スチレン共重合体(ABS樹脂、日本エイアンドエル株式会社製クララスチックS3716)(ABS樹脂100質量部に対して、変性CNF 11.1質量部)を設定温度190℃にて二軸スクリュー混練押出機を用いて複合化した。射出成形機を用いて、複合材料を射出成形体へ加工した。
高圧ホモジナイザーにより解繊されたCNF 10質量%と熱可塑性樹脂として90質量%のABS樹脂(日本エイアンドエル株式会社製クララスチックS3716)(ABS樹脂100質量部に対して、CNF 11.1質量部)を設定温度190℃にて二軸スクリュー混練押出機を用いて複合化した。射出成形機を用いて、複合材料を射出成形体へ加工した。
実施例2及び3は、曲げ弾性率、曲げ強度、Izod衝撃強度及び荷重たわみ温度において優れた特性を示した。またメチルジアリルアミン塩酸塩・エピクロルヒドリン変性重合物の添加量によって、曲げ特性及び耐衝撃性を任意に変化させられることが確認できた。尚、ナイロン11のみの成形体の物性は、曲げ弾性率1160MPa、曲げ強度49.6MPa、Izod衝撃強度2.75J-Nは8.04kJ/m2、5.5kJ-Rは破壊せず、荷重たわみ温度は、低荷重(0.45MPa)が111.4℃、高荷重(1.8MPa)が47.1℃であった。
パルプ材料を用いて、実施例2と同様の手順によりをカチオン変性し、カチオン変性パルプを作製した。
パルプ材料を用いて、実施例2と同様の手順によりをカチオン化変性し、カチオン変性パルプを作製した。
Claims (4)
- 平均繊維径が0.01〜3μmであり、平均繊維長が5〜3000μmであるセルロースナノファイバーの一部の水酸基とジアリルアミン由来の構成単位からなるカチオンポリマー化合物とを反応させることにより、セルロースナノファイバーをカチオン変性することを特徴とする、変性セルロースナノファイバーの製造方法。
- (1)平均繊維径が0.01〜3μmであり、平均繊維長が5〜3000μmであるセルロースナノファイバーの一部の水酸基とジアリルアミン由来の構成単位からなるカチオンポリマー化合物とを反応させることにより、セルロースナノファイバーをカチオン変性する工程、
(2)工程(1)によって得られた変性セルロースナノファイバー(A)と熱可塑性樹脂(B)とを混合する工程、
を含む樹脂組成物の製造方法。 - 前記熱可塑性樹脂(B)が、ポリアミド樹脂及び/又はABS樹脂である、請求項2に記載の樹脂組成物の製造方法。
- (1)セルロースナノファイバーの一部の水酸基とジアリルアミン由来の構成単位からなるカチオンポリマー化合物とを反応させることにより、セルロースナノファイバーをカチオン変性する工程、
(2)工程(1)によって得られた変性セルロースナノファイバー(A)と熱可塑性樹脂(B)とを混合する工程、
を含み、
前記熱可塑性樹脂(B)が、ポリアミド樹脂及び/又はABS樹脂である、
樹脂組成物の製造方法。
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JP6528997B2 (ja) * | 2014-11-07 | 2019-06-12 | 星光Pmc株式会社 | 樹脂強化用セルロース繊維の製造方法、樹脂強化用セルロース繊維の製造方法、樹脂組成物の製造方法及び樹脂成形体の製造方法 |
CN104499361B (zh) * | 2014-11-21 | 2017-02-22 | 国家纳米科学中心 | 一种含有纳米微晶纤维素的akd施胶剂、制备方法及其用途 |
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WO2013133385A1 (ja) | 2013-09-12 |
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