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タイトル: | Preparation of micro/nanocellular polypropylene foam with crystal nucleating agents |
著者: | Miyamoto, Ryoma Yasuhara, Shunya Shikuma, Haruo Ohshima, Masahiro https://orcid.org/0000-0003-0870-5438 (unconfirmed) |
著者名の別形: | 大嶋, 正裕 |
発行日: | 19-Sep-2013 |
出版者: | wiley |
誌名: | Polymer Engineering & Science |
巻: | 54 |
号: | 9 |
開始ページ: | 2075 |
終了ページ: | 2085 |
抄録: | Open-cell, porous microcellular foams with nanofibrillated structures were prepared from high tacticity isotactic polypropylene (i-PP) with a crystal nucleating and gelling agent. The 1, 3:2, 4 bis-O-(4-methylbenzylidene)-d-sorbitol gelling agent (Gel-all MD) was used as the crystal nucleating and gelling agent, which enhanced the crystallization and gelation of i-PP with a three-dimensional network of highly connected nanofibrils. The core-back foam injection molding technique was employed to foam the i-PP with nitrogen (N2) at a high expansion ratio, where the crystal nucleating agent induced bubble nucleation and bubble growth in the inter-lamella region and opened the cell walls with a nanoscale-fibrillated structure. The effects of the nucleating agent on the open cell content (OCC), density and crystallinity were thoroughly investigated. We prepared open-cell micro/nanocellular foams with an average cell size of microscale voids of < 5 μm. Nanometer-scale fibrillated structures were formed on the cell wall of the microscale void, the expansion ratio was five-fold and the open cell content was over 90%. |
著作権等: | This is the peer reviewed version of the following article: Miyamoto, R., Yasuhara, S., Shikuma, H. and Ohshima, M. (2014), Preparation of micro/nanocellular polypropylene foam with crystal nucleating agents. Polym Eng Sci, 54: 2075–2085, which has been published in final form at http://dx.doi.org/10.1002/pen.23758. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/200219 |
DOI(出版社版): | 10.1002/pen.23758 |
出現コレクション: | 学術雑誌掲載論文等 |
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