PMID- 31248085
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 12
IP  - 12
DP  - 2019 Jun 19
TI  - Effect of Polymer Blends on the Properties of Foamed Wood-Polymer Composites.
LID - 10.3390/ma12121971 [doi]
LID - 1971
AB  - The polypropylene (PP)/wood flour (WF) composites were prepared using a 
      co-rotating twin-screw extruder followed by a single-screw extruder foaming 
      system in this paper. Polymers, such as polyolefin elastomer (POE), high-density 
      polyethylene (HDPE) or microcrystalline wax, were blended with PP in the 
      preparation of composites to improve the melt strength. And a cavity transfer 
      mixer was introduced to increase the distribution uniformity of components in 
      composites. Meanwhile, the effect of the polymer blends on the microstructure and 
      mechanical properties of samples was investigated. The experimental results show 
      that the addition of POE and HDPE resulted in the second melting peak in the 
      differential scanning calorimeter (DSC) curves and a great decrease in the cell 
      size was caused by the added POE. However, due to the velocity difference of 
      composites in the die, the shape of bubbles gradually became irregular. Moreover, 
      the impact strength of samples significantly increased by 85% for the added POE 
      and the apparent density decreased by 6.7%. And the minimum Vicat softening 
      temperature of 133.7  degrees C was obtained when the mass ratio of HDPE to PP was 4/6.
FAU - Wang, Suwei
AU  - Wang S
AUID- ORCID: 0000-0001-7621-9058
AD  - College of Mechanical and Electrical Engineering, Beijing University of Chemical 
      Technology, Beijing 100029, China. wangsw90@163.com.
FAU - Xue, Ping
AU  - Xue P
AD  - College of Mechanical and Electrical Engineering, Beijing University of Chemical 
      Technology, Beijing 100029, China. xueping@mail.buct.edu.cn.
FAU - Jia, Mingyin
AU  - Jia M
AD  - College of Mechanical and Electrical Engineering, Beijing University of Chemical 
      Technology, Beijing 100029, China. jiamy@mail.buct.edu.cn.
FAU - Tian, Jing
AU  - Tian J
AD  - College of Mechanical and Electrical Engineering, Beijing University of Chemical 
      Technology, Beijing 100029, China. tianjing_buct@163.com.
FAU - Zhang, Run
AU  - Zhang R
AD  - College of Mechanical and Electrical Engineering, Beijing University of Chemical 
      Technology, Beijing 100029, China. zhangrun_buct@163.com.
LA  - eng
PT  - Journal Article
DEP - 20190619
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC6630291
OTO - NOTNLM
OT  - chemical blowing agent
OT  - extrusion foaming
OT  - polymer blends
OT  - polypropylene
OT  - wood-polymer composites
COIS- The authors declare no conflict of interest.
EDAT- 2019/06/30 06:00
MHDA- 2019/06/30 06:01
PMCR- 2019/06/19
CRDT- 2019/06/29 06:00
PHST- 2019/05/25 00:00 [received]
PHST- 2019/06/11 00:00 [revised]
PHST- 2019/06/17 00:00 [accepted]
PHST- 2019/06/29 06:00 [entrez]
PHST- 2019/06/30 06:00 [pubmed]
PHST- 2019/06/30 06:01 [medline]
PHST- 2019/06/19 00:00 [pmc-release]
AID - ma12121971 [pii]
AID - materials-12-01971 [pii]
AID - 10.3390/ma12121971 [doi]
PST - epublish
SO  - Materials (Basel). 2019 Jun 19;12(12):1971. doi: 10.3390/ma12121971.