PMID- 29795002
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200930
IS  - 2079-4991 (Print)
IS  - 2079-4991 (Electronic)
IS  - 2079-4991 (Linking)
VI  - 8
IP  - 6
DP  - 2018 May 24
TI  - Microstructure and Thermal Reliability of Microcapsules Containing Phase Change 
      Material with Self-Assembled Graphene/Organic Nano-Hybrid Shells.
LID - 10.3390/nano8060364 [doi]
LID - 364
AB  - In recent decades, microcapsules containing phase change materials (microPCMs) 
      have been the center of much attention in the field of latent thermal energy 
      storage. The aim of this work was to prepare and investigate the microstructure 
      and thermal conductivity of microPCMs containing self-assembled graphene/organic 
      hybrid shells. Paraffin was used as a phase change material, which was 
      successfully microencapsulated by graphene and polymer forming hybrid composite 
      shells. The physicochemical characters of microPCM samples were investigated 
      including mean size, shell thickness, and chemical structure. Scanning electron 
      microscope (SEM) results showed that the microPCMs were spherical particles and 
      graphene enhanced the degree of smoothness of the shell surface. The existence of 
      graphene in the shells was proved by using the methods of X-ray photoelectron 
      spectroscopy (XPS), transmission electron microscopy (TEM), and atomic force 
      microscopy (AFM). It was found that graphene hybrid shells were constructed by 
      forces of electric charge absorption and long-molecular entanglement. MicroPCMs 
      with graphene had a higher degradation temperature of 300  degrees C. Graphene greatly 
      enhanced the thermal stability of microPCMs. The thermal conductivity tests 
      indicated that the phase change temperature of microPCMs was regulated by the 
      graphene additive because of enhancement of the thermal barrier of the hybrid 
      shells. Differential scanning calorimetry (DSC) tests proved that the latent 
      thermal energy capability of microPCMs had been improved with a higher heat 
      conduction rate. In addition, infrared thermograph observations implied that the 
      microPCMs had a sensitivity response to heat during the phase change cycling 
      process because of the excellent thermal conductivity of graphene.
FAU - Wang, Xianfeng
AU  - Wang X
AD  - Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, 
      Shenzhen University, Shenzhen 518060, China. xfw@szu.edu.cn.
FAU - Guo, Yandong
AU  - Guo Y
AD  - Department of Polymer Material, School of Material Science and Engineering, 
      Tianjin Polytechnic University, Tianjin 300387, China. ydguo008@163.com.
FAU - Su, Junfeng
AU  - Su J
AD  - Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, 
      Shenzhen University, Shenzhen 518060, China. sujunfeng@tjpu.edu.cn.
AD  - Department of Polymer Material, School of Material Science and Engineering, 
      Tianjin Polytechnic University, Tianjin 300387, China. sujunfeng@tjpu.edu.cn.
FAU - Zhang, Xiaolong
AU  - Zhang X
AD  - Department of Polymer Material, School of Material Science and Engineering, 
      Tianjin Polytechnic University, Tianjin 300387, China. xlzhang008@163.com.
FAU - Han, Ningxu
AU  - Han N
AD  - Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, 
      Shenzhen University, Shenzhen 518060, China. nxhan@szu.edu.cn.
FAU - Wang, Xinyu
AU  - Wang X
AD  - School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, 
      China. wxy@tjcu.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20180524
PL  - Switzerland
TA  - Nanomaterials (Basel)
JT  - Nanomaterials (Basel, Switzerland)
JID - 101610216
PMC - PMC6027532
OTO - NOTNLM
OT  - Nano-hybrid
OT  - graphene
OT  - microcapsule
OT  - phase change material
OT  - thermal conductivity
COIS- The authors declare no conflict of interest.
EDAT- 2018/05/26 06:00
MHDA- 2018/05/26 06:01
PMCR- 2018/05/24
CRDT- 2018/05/26 06:00
PHST- 2018/04/25 00:00 [received]
PHST- 2018/05/11 00:00 [revised]
PHST- 2018/05/17 00:00 [accepted]
PHST- 2018/05/26 06:00 [entrez]
PHST- 2018/05/26 06:00 [pubmed]
PHST- 2018/05/26 06:01 [medline]
PHST- 2018/05/24 00:00 [pmc-release]
AID - nano8060364 [pii]
AID - nanomaterials-08-00364 [pii]
AID - 10.3390/nano8060364 [doi]
PST - epublish
SO  - Nanomaterials (Basel). 2018 May 24;8(6):364. doi: 10.3390/nano8060364.