Effect of Biochar Addition on Mechanical Properties, Thermal Stability, and Water Resistance of Hemp-Polylactic Acid (PLA) Composites

被引：36
作者：
Zouari, Mariem [1 ,2 ]
Devallance, David B. [1 ,2 ]
Marrot, Laetitia [1 ,3 ]
机构：
[1] Innorenew CoE, Livade 6, Izola 6310, Slovenia
[2] Univ Primorska, Fac Math Nat Sci & Informat Technol, Muzejski Trg 2, Koper 6000, Slovenia
[3] Univ Primorska, Andrej Marusi Inst, Muzejski Trg 2, Koper 6000, Slovenia
来源：
MATERIALS | 2022年 / 15卷 / 06期
基金：
欧盟地平线“2020”;
关键词：
biochar; polylactic acid; hemp fibers; mechanical properties; thermal stability; water resistance; FIBER; CRYSTALLIZATION; POLYPROPYLENE; NANOCOMPOSITES; HYDROPHOBICITY; PERFORMANCE; BEHAVIOR; CONTACT; WASTE; FILMS;
D O I：
10.3390/ma15062271
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The present study investigated the effect of biochar (BC) addition on mechanical, thermal, and water resistance properties of PLA and hemp-PLA-based composites. BC was combined with variable concentration to PLA (5 wt%, 10 wt%, and 20 wt%) and hemp (30 wt%)-PLA (5 wt% and 10 wt%); then, composites were blended and injection molded. Samples were characterized by color measurements, tensile tests, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and water contact angle analysis. Experimental results showed that adding 5 wt% of BC enhanced the composite's tensile modulus of elasticity and strength. Hence, the use of optimized loading of BC improved the mechanical strength of the composites. However, after BC addition, thermal stability slightly decreased compared with that of neat PLA due to the catalytic effect of BC particles. Moreover, the water-repelling ability decreased as BC content increased due to the specific hydrophilic characteristics of the BC used and its great porosity.
引用
收藏
页数：16
相关论文
共 54 条
[1]   Effect of Hemp Fiber Surface Treatment on the Moisture/Water Resistance and Reaction to Fire of Reinforced PLA Composites [J].
Alao, Percy Festus ;
Marrot, Laetitia ;
Kallakas, Heikko ;
Just, Alar ;
Poltimae, Triinu ;
Kers, Jaan .
MATERIALS, 2021, 14 (15)
[2]   Impact of Alkali and Silane Treatment on Hemp/PLA Composites' Performance: From Micro to Macro Scale [J].
Alao, Percy Festus ;
Marrot, Laetitia ;
Burnard, Michael David ;
Lavric, Gregor ;
Saarna, Mart ;
Kers, Jaan .
POLYMERS, 2021, 13 (06)
[3]   Effect of alkyl ketene dimer on chemical and thermal properties of polylactic acid (PLA) hybrid composites [J].
Angin, Naile ;
Caylak, Sena ;
Ertas, Murat ;
Cavdar, Ayfer Donmez .
SUSTAINABLE MATERIALS AND TECHNOLOGIES, 2022, 32
[4]   Poly(lactic Acid)-Biochar Biocomposites: Effect of Processing and Filler Content on Rheological, Thermal, and Mechanical Properties [J].
Arrigo, Rossella ;
Bartoli, Mattia ;
Malucelli, Giulio .
POLYMERS, 2020, 12 (04)
[5]   Effect of carbon-rich biochar on mechanical properties of PLA-biochar composites [J].
Aup-Ngoen, Kamonwan ;
Noipitak, Mai .
SUSTAINABLE CHEMISTRY AND PHARMACY, 2020, 15
[6]   Mechanical, physical, and barrier properties of poly(lactide) films [J].
Auras, RA ;
Harte, B ;
Selke, S ;
Hernandez, R .
JOURNAL OF PLASTIC FILM & SHEETING, 2003, 19 (02) :123-135
[7]   Study of the fibre morphology stability in polypropylene-flax composites [J].
Ausias, Gilles ;
Bourmaud, Alain ;
Coroller, Guillaume ;
Baley, Christophe .
POLYMER DEGRADATION AND STABILITY, 2013, 98 (06) :1216-1224
[8]   ON CRYSTALLIZATION PHENOMENA IN PEEK [J].
BASSETT, DC ;
OLLEY, RH ;
ALRAHEIL, IAM .
POLYMER, 1988, 29 (10) :1745-1754
[9]  
Basu P., 2013, Biomass gasification, pyrolysis and torrefaction: practical design and theory, DOI [10.1016/B978-0-12-396488-5.00005-8, DOI 10.1016/B978-0-12-396488-5.00005-8]
[10]   Towards the design of high-performance plant fibre composites [J].
Bourmaud, Alain ;
Beaugrand, Johnny ;
Shah, Darshil U. ;
Placet, Vincent ;
Baley, Christophe .
PROGRESS IN MATERIALS SCIENCE, 2018, 97 :347-408
123456