Processing and characterization of nanocomposite based on poly(butylene/triethylene succinate) copolymers and cellulose nanocrystals

被引：27

作者：

Fortunati, Elena ^{[1
]}

Gigli, Matteo ^{[2
,6
]}

Luzi, Francesca ^{[1
]}

Dominici, Franco ^{[1
]}

Lotti, Nadia ^{[2
]}

Gazzano, Massimo ^{[3
]}

Cano, Amalia ^{[4
]}

Chiralt, Amparo ^{[4
]}

Munari, Andrea ^{[2
]}

Kenny, Jose Maria ^{[1
]}

Armentano, Ilaria ^{[5
]}

Torre, Luigi ^{[1
]}

机构：

[1] Univ Perugia, UdR INSTM, Civil & Environm Engn Dept, Str Pentima 4, I-05100 Terni, Italy

[2] Univ Bologna, Civil Chem Environm & Mat Engn Dept DICAM, Via Terracini 28, I-40131 Bologna, Italy

[3] CNR, Organ Synth & Photoreact Inst, Via Selmi 2, I-40126 Bologna, Italy

[4] Univ Politecn Valencia, Inst Food Engn Dev, Camino Vera S-N, E-46022 Valencia, Spain

[5] Univ Tuscia, Dept Ecol & Biol Sci DEB, Viale Univ Snc, I-01100 Viterbo, Italy

[6] Univ Roma Tor Vergata, Dept Chem Sci & Technol, Via Ric Sci 1, I-00133 Rome, Italy

来源：

CARBOHYDRATE POLYMERS | 2017年 / 165卷

关键词：

Random copolyesters; Cellulose nanocrystals; Bionanocomposite; Extrusion process; FILMS; BARRIER; COPOLYESTERS; COMPOSITES; POLYESTERS;

D O I：

10.1016/j.carbpol.2017.02.024

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new class of biodegradable materials developed by a combination of random eco-friendly copolyesters containing butylene succinate (BS) and triethylene succinate (TES) sequences with cellulose nanocrystals (CNC), is proposed and studied. Polymers and nanocomposite films were prepared by an optimized extrusion process to improve the processability and mechanical response for flexible film manufacturing. Poly(butylene succinate) (PBS) homopolymer and two random copolyesters containing different amounts of TES co-units, P(BS85TES15) and P(BS7OTES30), were synthesized by melt polycondensation. The effect of TES and CNC presence and content on the microstructure, tensile properties, thermal characteristics and disintegration under composting conditions, as well as on the toughening mechanism of the blends was investigated. Material properties were modulated by varying the chemical composition. CNC were used as reinforcement additive and their effect is modulated by the interaction with the three polymeric matrices. The extruded films displayed tunable degradation rates, mechanical properties and wettability, and showed promising results for different industrial applications. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：51 / 60

页数：10

共 32 条

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