PMID- 31266203
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200930
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 11
IP  - 7
DP  - 2019 Jul 1
TI  - How does Pickering Emulsion Pre-treatment Influence the Properties of Wood Flour 
      and its Composites with High-Density Polyethylene?
LID - 10.3390/polym11071115 [doi]
LID - 1115
AB  - Silica synergistically stabilized paraffin Pickering emulsion is applied to 
      modify wood flour (WF) for preparing wood/polymer composites. The effect of 
      Pickering emulsion on properties of the WF and its composites with high-density 
      polyethylene (HDPE) is investigated. The impregnation of paraffin Pickering 
      emulsion could significantly improve the WF dispersion in HDPE matrix, resulting 
      in increased melt flow index (MFI). It increased from 1.3 g/10 min (control) to 
      2.1 g/10 min (Pickering treatment) due to the lubrication of paraffin and rolling 
      friction provided by silica nanoparticles. The hydrophobicity of the WF was 
      improved by the penetration of paraffin and silica in the cell wall, which could 
      consume the hydroxyl groups in WFs via hydrogen bonding. Owing to the well 
      distribution of WFs and silica, the mechanical properties and surface hardness of 
      the composites were enhanced obviously. The optimal tensile strength and impact 
      strength increased 23% (18.28 MPa) and 32% (14.16 KJ/m(2)), respectively. It also 
      could be attributed to the improved interfacial compatibility due to the 
      incorporation of surfactants (Span 80 and Tween 80), which acted as a coupling 
      agent. Furthermore, the silica incorporated in the WF could compensate the 
      negative effect of paraffin on thermal stability of the composites. A model 
      concerning the interactions in the composites was proposed based on the research 
      results.
FAU - Jiang, Jun
AU  - Jiang J
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
AD  - Engineering Research Center of Fast-growing Trees and Agri-fiber Materials of 
      Jiangsu Province, Nanjing 210037, China.
FAU - Mei, Changtong
AU  - Mei C
AUID- ORCID: 0000-0001-8635-0762
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China. mei@njfu.edu.cn.
AD  - Engineering Research Center of Fast-growing Trees and Agri-fiber Materials of 
      Jiangsu Province, Nanjing 210037, China. mei@njfu.edu.cn.
FAU - Pan, Mingzhu
AU  - Pan M
AUID- ORCID: 0000-0003-1907-0554
AD  - College of Materials Science and Engineering, Nanjing Forestry University, 
      Nanjing 210037, China.
AD  - Engineering Research Center of Fast-growing Trees and Agri-fiber Materials of 
      Jiangsu Province, Nanjing 210037, China.
FAU - Cao, Jinzhen
AU  - Cao J
AUID- ORCID: 0000-0002-9857-5229
AD  - MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry 
      University, Beijing 100083, China. caoj@bjfu.edu.cn.
LA  - eng
GR  - 2018M642258/China Postdoctoral Science Foundation/
GR  - 31570542/National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20190701
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC6680759
OTO - NOTNLM
OT  - high-density polyethylene
OT  - paraffin Pickering emulsion
OT  - properties analysis
OT  - wood flour treatment
OT  - wood/polymer composites
COIS- The authors declare no conflict of interest.
EDAT- 2019/07/04 06:00
MHDA- 2019/07/04 06:01
PMCR- 2019/07/01
CRDT- 2019/07/04 06:00
PHST- 2019/05/20 00:00 [received]
PHST- 2019/06/14 00:00 [revised]
PHST- 2019/06/15 00:00 [accepted]
PHST- 2019/07/04 06:00 [entrez]
PHST- 2019/07/04 06:00 [pubmed]
PHST- 2019/07/04 06:01 [medline]
PHST- 2019/07/01 00:00 [pmc-release]
AID - polym11071115 [pii]
AID - polymers-11-01115 [pii]
AID - 10.3390/polym11071115 [doi]
PST - epublish
SO  - Polymers (Basel). 2019 Jul 1;11(7):1115. doi: 10.3390/polym11071115.