PMID- 32512307
OWN - NLM
STAT- MEDLINE
DCOM- 20200806
LR  - 20200806
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 737
DP  - 2020 Oct 1
TI  - Properties evaluation of biochar/high-density polyethylene composites: 
      Emphasizing the porous structure of biochar by activation.
PG  - 139770
LID - S0048-9697(20)33290-3 [pii]
LID - 10.1016/j.scitotenv.2020.139770 [doi]
AB  - Activated biochars (AB-0.5, AB-1, AB-1.5, AB-2) prepared under different 
      concentrations of an activating agent were used to manufacturing composites 
      (ABHC-0.5, ABHC-1, ABHC-1.5, ABHC-2) based on high-density polyethylene (HDPE) by 
      compounding and injection molding. Thermal and mechanical properties of the 
      composites were characterized and analyzed. The addition of activated biochars 
      improved the thermal properties of HDPE shown by Differential scanning 
      calorimetry and Thermogravimetric analysis. Additionally, ABHC-0.5 exhibited the 
      best flexural strength (38.66 MPa), flexural modulus (2.46 GPa), tensile strength 
      (32.17 MPa), tensile modulus (1.95 GPa), rigidity, elasticity, creep resistance, 
      and anti-stress relaxation ability due to the best porous structure of AB-0.5. A 
      decrease of mechanical properties was observed in ABHC-1, ABHC-1.5, ABHC-2 
      compared to ABHC-0.5, which was due to the fact that the porous structure was 
      damaged by an excessive activating agent. The results of this study provided a 
      predictive insight in view of optimizing process parameters and establishing the 
      meaningful relationship between biochar porous structure and its resulting 
      composites.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Zhang, Qingfa
AU  - Zhang Q
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China; Department of Biological Systems Engineering, Washington 
      State University, Richland, WA 99354, USA.
FAU - Xu, Hang
AU  - Xu H
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Lu, Wenyu
AU  - Lu W
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Zhang, Donghong
AU  - Zhang D
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Ren, Xiajin
AU  - Ren X
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Yu, Wenfan
AU  - Yu W
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Wu, Juanjuan
AU  - Wu J
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Zhou, Liang
AU  - Zhou L
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Han, Xiangsheng
AU  - Han X
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China.
FAU - Yi, Weiming
AU  - Yi W
AD  - School of Agricultural Engineering and Food Science, Shandong Research Center of 
      Engineering & Technology for Clean Energy, Shandong University of Technology, 
      Zibo 255000, China. Electronic address: yiweiming@sdut.edu.cn.
FAU - Lei, Hanwu
AU  - Lei H
AD  - Department of Biological Systems Engineering, Washington State University, 
      Richland, WA 99354, USA. Electronic address: hlei@wsu.edu.
LA  - eng
PT  - Journal Article
DEP - 20200529
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (biochar)
RN  - 16291-96-6 (Charcoal)
RN  - 9002-88-4 (Polyethylene)
SB  - IM
MH  - *Charcoal
MH  - *Polyethylene
MH  - Porosity
MH  - Tensile Strength
OTO - NOTNLM
OT  - Activation
OT  - Biochar
OT  - Composites
OT  - Properties evaluation
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/06/09 06:00
MHDA- 2020/08/07 06:00
CRDT- 2020/06/09 06:00
PHST- 2020/04/22 00:00 [received]
PHST- 2020/05/25 00:00 [revised]
PHST- 2020/05/26 00:00 [accepted]
PHST- 2020/06/09 06:00 [pubmed]
PHST- 2020/08/07 06:00 [medline]
PHST- 2020/06/09 06:00 [entrez]
AID - S0048-9697(20)33290-3 [pii]
AID - 10.1016/j.scitotenv.2020.139770 [doi]
PST - ppublish
SO  - Sci Total Environ. 2020 Oct 1;737:139770. doi: 10.1016/j.scitotenv.2020.139770. 
      Epub 2020 May 29.