Morphological characteristics and thermal, rheological, and mechanical properties of cellulose nanocrystals-containing biodegradable poly(lactic acid)/poly(epsilon-caprolactone) blend composites

Motloung Mpho Phillip; Ojijo Vincent; Bandyopadhyay Jayita; Ray Suprakas Sinha

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Morphological characteristics and thermal, rheological, and mechanical properties of cellulose nanocrystals-containing biodegradable poly(lactic acid)/poly(epsilon-caprolactone) blend composites

机译：含纤维素纳米晶体可生物降解聚（乳酸）/聚（ε-己内酮）混合物复合材料的形态学特性及热，流变和力学性能

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This work investigates the effect of cellulose nanocrystal (CN) loading on the properties of polylactide/poly(epsilon-caprolactone) (PLA/PCL) (70/30) blend processed in a twin-screw extruder as a potential material that can be utilized in various applications where biodegradation is highly desired. The morphological analysis revealed a reduction in droplet size of dispersed PCL phase upon addition of CN at low concentrations (1 and 2 wt %) with maximum reduction at 2 wt % which led to maximum improvement in mechanical properties. The reinforcing effect of CN in increasing the DMA storage modulus of the prepared systems was noticed when CN concentration was increased. Further, CN enhanced the crystallization of PCL, whereas the cold crystallization of PLA remained the same with CN addition. Both melt strength and viscosity of PLA improved with the incorporation of PCL and CN. In general, a green composite material with improved properties was successfully prepared using an environmentally friendly filler material. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48665.

机译：该作品研究了纤维素纳米晶（CN）负载对在双螺杆挤出机中加工的聚物/聚（ε-己内酯）（PLA / PCL）（PLA / PCL）（70/30）共混物的性质的影响，作为可用于可用于的潜在材料在强度所需的生物降解的各种应用中。形态学分析显示在低浓度（1和2wt％）下加入Cn时分散的PCL相的液滴尺寸的降低，最大减少为2wt％，导致机械性能的最大改善。当CN浓度增加时，注意到CN在增加制备的系统DMA储存模量时的增强效果。此外，CN增强了PCL的结晶，而PLA的冷结晶仍然与CN添加相同。 PCL和CN的掺入，PLA的熔体强度和粘度均得到改善。通常，使用环保填料成功制备具有改善性质的绿色复合材料。（c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,137,48665。

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来源
《Journal of Applied Polymer Science》 |2020年第20期|共11页
作者
Motloung Mpho Phillip; Ojijo Vincent; Bandyopadhyay Jayita; Ray Suprakas Sinha;
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CSIR DST CSIR Natl Ctr Nanostruct Mat ZA-0001 Pretoria South Africa;

CSIR DST CSIR Natl Ctr Nanostruct Mat ZA-0001 Pretoria South Africa;

CSIR DST CSIR Natl Ctr Nanostruct Mat ZA-0001 Pretoria South Africa;

CSIR DST CSIR Natl Ctr Nanostruct Mat ZA-0001 Pretoria South Africa;

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正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
biodegradable; mechanical properties; nanocrystals; nanoparticles; nanowires; thermal properties;

机译：可生物降解;机械性能;纳米晶体;纳米粒子;纳米线;热性质;

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1. Morphological characteristics and thermal, rheological, and mechanical properties of cellulose nanocrystals-containing biodegradable poly(lactic acid)/poly(epsilon-caprolactone) blend composites [J] . Motloung Mpho Phillip, Ojijo Vincent, Bandyopadhyay Jayita, Journal of Applied Polymer Science . 2020,第19a20期

机译：含纤维素纳米晶体可生物降解聚（乳酸）/聚（ε-己内酮）混合物复合材料的形态学特性及热，流变和力学性能
2. Morphological development and enhancement of thermal, mechanical, and electronic properties of thermally exfoliated graphene oxide-filled biodegradable polylactide/poly(epsilon-caprolactone) blend composites [J] . Botlhoko Orebotse Joseph, Ramontja James, Ray Suprakas Sinha Polymer: The International Journal for the Science and Technology of Polymers . 2018,第期

机译：热剥离石墨烯氧化物可生物降解聚氨酯/聚（ε-己内酯）混合物复合材料的热，机械和电子性能的形态学开发和增强
3. Characterization of the Mechanical and Thermal Properties and Morphological Behavior of Biodegradable Poly(L-lactide)/Poly(epsilon-caprolactone) and Poly(L-lactide)/Poly(butylene succinate-co-L-lactate) Polymeric Blends [J] . Vilay V, Mariatti M, Ahmad Z, Journal of Applied Polymer Science . 2009,第3期

机译：可生物降解的聚（L-丙交酯）/聚（ε-己内酯）和聚（L-丙交酯）/聚（丁二酸琥珀酸酯-共-L-乳酸酯）聚合物共混物的力学和热学性质以及形态学特性的表征
4. Biodegradable blends of poly(lactic acid) and poly (butylenes succinate) with improved compatibility, mechanical and thermal properties biodegradable [C] . PAN Licun, MENG Tao, YOU Wei, International Conference on Advanced Fibers and Polymer Materials;ICAFPM . 2011

机译：聚乳酸和聚丁二酸丁二酸酯的生物可降解共混物，具有改善的相容性，机械和热性能，可生物降解
5. The rheological and mechanical properties of biodegradable poly(lactic acid)/poly(butylene succinate-co-adipate) blends. [D] . Im, Heeseok. 2001

机译：可生物降解的聚乳酸/聚丁二酸丁二酸共-己二酸酯共混物的流变和机械性能。
6. Morphology Thermal Mechanical Properties and Rheological Behavior of Biodegradable Poly(butylene succinate)/poly(lactic acid) In-Situ Submicrofibrillar Composites [O] . Zhiwen Zhu, Hezhi He, Bin Xue, 2018

机译：可生物降解的聚丁二酸丁二醇酯/聚乳酸原位亚微原纤复合材料的形貌热力学性能和流变行为
7. Crystalline Characteristics, Mechanical Properties, Thermal Degradation Kinetics and Hydration Behavior of Biodegradable Fibers Melt-Spun from Polyoxymethylene/Poly(l-lactic acid) Blends [O] . Jianhua Li, Yatao Wang, Xiaodong Wang, 2019

机译：生物降解纤维的结晶特性，机械性能，热降解动力学和水化性能熔融 - 熔化 - 聚氧亚甲基/聚（L-乳酸）共混物

Morphological characteristics and thermal, rheological, and mechanical properties of cellulose nanocrystals-containing biodegradable poly(lactic acid)/poly(epsilon-caprolactone) blend composites

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