Effects of Nanofillers Based on Cetyltrimethylammonium-Modified Clays in a Polypropylene Nanocomposite
- 주제(키워드) polypropylene , organo-clay , nanocomposites , thermal stability , mechanical strength
- 주제(기타) Polymer Science
- 설명문(일반) [Ryu, Hyeon-Ju; Hang, Nguyen Thu; Jeong, Byeongmoon] Ewha Womans Univ, Dept Chem & Nanosci, Seoul 03760, South Korea; [Rejinold, Sanoj N.; Choi, Goeun; Choy, Jin-Ho] Dankook Univ, Inst Tissue Regenerat Engn ITREN, Intelligent Nanohybrid Mat Lab INML, Cheonan 31116, South Korea; [Choi, Goeun] Dankook Univ, Coll Sci & Technol, Cheonan 31116, South Korea; [Choi, Goeun] Dankook Univ, Dept Nanobiomed Sci, Cheonan 31116, South Korea; [Choi, Goeun] Dankook Univ, BK21 PLUS NBM Global Res Ctr Regenerat Med, Cheonan 31116, South Korea; [Choy, Jin-Ho] Natl Acad Sci, Div Nat Sci, Seoul 06579, South Korea; [Choy, Jin-Ho] Dankook Univ, Coll Med, Dept Premed Course, Cheonan 31116, South Korea; [Choy, Jin-Ho] Tokyo Inst Technol, Inst Innovat Res, Int Res Frontier Initiat IRFI, Yokohama, Kanagawa 2268503, Japan
- 등재 SCIE, SCOPUS
- OA유형 Green Published, gold
- 발행기관 MDPI
- 발행년도 2022
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000202992
- 본문언어 영어
- Published As https://doi.org/10.3390/polym14194110
- PubMed https://pubmed.ncbi.nlm.nih.gov/36236057
초록/요약
Nanocomposites of hydrophobic organo-clay/polypropylene (organo-clay/PP) were efficiently developed through a solution-blending technique. For this, we utilized various smectite clays as host agents; namely, Na-montmorillonite (Mt, similar to 1000 nm), Na-fluorine mica (Mica, similar to 1500 nm), and Na-hectorite (Ht, similar to 60 nm) with varied sizes, layer charges, and aspect ratios. Such clays were functionalized with cetyltrimethylammonium (CTA) bromide via an intercalation technique to obtain hydrophobic organic clays. The as-made clay particles were further mixed with a PP/xylene solution; the latter was removed to obtain the final product of the CTA-clay/PP nanocomposite. An X-ray diffraction (XRD) analysis confirmed that there were no characteristic (001) diffraction peaks for CTA-Mica in the PP nanocomposites containing CTA-Mica, assuring the fact that the Mica layers could be completely exfoliated and thereby homogenously composited within the PP. On the other hand, the CTA-Mt and CTA-Ht incorporated composites had broader (001) peaks, which might have been due to the partial exfoliation of CTA-Mt and CTA-Ht in the composites. Among the three CTA-clay/PP nanocomposites, the CTA-Mica nanohybrid showed an enhanced thermal stability by similar to 42 degrees C compared to the intact host polymer matrix. We also noted that when the CTA-Mica content was similar to 9 mass % in the nanocomposites, the Young's modulus was drastically maximized to 69%. Our preliminary results therefore validated that out of the three tested clay-PP nanocomposites, the CTA-Mica nanofiller served as the best one to improve both the thermal and mechanical properties of the PP nanocomposites.
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