PMID- 33525697
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210210
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 13
IP  - 3
DP  - 2021 Jan 28
TI  - Enhanced Water Resistance of Recycled Newspaper/High Density Polyethylene 
      Composite Laminates via Hydrophobic Modification of Newspaper Laminas.
LID - 10.3390/polym13030421 [doi]
LID - 421
AB  - A high strength recycled newspaper (NP)/high density polyethylene (HDPE) 
      laminated composite was developed using NP laminas as reinforcement and HDPE film 
      as matrix. Herein, NP fiber was modified with stearic acid (SA) to enhance the 
      water resistance of the NP laminas and NP/HDPE composite. The effects of heat 
      treatment and SA concentration on the water resistance and tensile property of NP 
      and composite samples were investigated. The chemical structure of the NP was 
      characterized with X-ray diffractometer, X-ray photoelectron spectroscopy and 
      attenuated total reflectance Fourier transform infrared spectra techniques. The 
      surface and microstructure of the NP sheets were observed by scanning electron 
      microscopy. An expected high-water resistance of NP sheets was achieved due to a 
      chemical bonding that low surface energy SA were grafted onto the modified NP 
      fibers. Results showed that the hydrophobicity of NP increased with increasing 
      the stearic acid concentration. The water resistance of the composite laminates 
      was depended on the hydrophobicity of the NP sheets. The lowest value of 2 h 
      water absorption rate (3.3% +/- 0.3%) and thickness swelling rate (2.2% +/- 0.4%) of 
      composite were obtained when the SA concentration was 0.15 M. In addition, the 
      introduction of SA can not only enhance the water resistance of the composite 
      laminates, but also reduce the loss of tensile strength in wet conditions, which 
      shows potential in outdoor applications.
FAU - Zheng, Binwei
AU  - Zheng B
AD  - College of Materials and Energy, South China Agricultural University, Guangzhou 
      510642, China.
FAU - Zhang, Weiwei
AU  - Zhang W
AD  - College of Materials and Energy, South China Agricultural University, Guangzhou 
      510642, China.
FAU - Guan, Litao
AU  - Guan L
AD  - College of Materials and Energy, South China Agricultural University, Guangzhou 
      510642, China.
FAU - Gu, Jin
AU  - Gu J
AD  - College of Materials and Energy, South China Agricultural University, Guangzhou 
      510642, China.
FAU - Tu, Dengyun
AU  - Tu D
AD  - College of Materials and Energy, South China Agricultural University, Guangzhou 
      510642, China.
FAU - Hu, Chuanshuang
AU  - Hu C
AD  - College of Materials and Energy, South China Agricultural University, Guangzhou 
      510642, China.
LA  - eng
GR  - 2017B020238003/Guangdong Science and Technology Department/
GR  - 2018A030313233/Guangdong Science and Technology Department/
PT  - Journal Article
DEP - 20210128
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC7865505
OTO - NOTNLM
OT  - composite laminates
OT  - high strength
OT  - recycled newspaper
OT  - water resistance
COIS- The authors declare no conflict of interest.
EDAT- 2021/02/03 06:00
MHDA- 2021/02/03 06:01
PMCR- 2021/01/28
CRDT- 2021/02/02 01:04
PHST- 2020/12/22 00:00 [received]
PHST- 2021/01/21 00:00 [revised]
PHST- 2021/01/22 00:00 [accepted]
PHST- 2021/02/02 01:04 [entrez]
PHST- 2021/02/03 06:00 [pubmed]
PHST- 2021/02/03 06:01 [medline]
PHST- 2021/01/28 00:00 [pmc-release]
AID - polym13030421 [pii]
AID - polymers-13-00421 [pii]
AID - 10.3390/polym13030421 [doi]
PST - epublish
SO  - Polymers (Basel). 2021 Jan 28;13(3):421. doi: 10.3390/polym13030421.