PMID- 33754691
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210408
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 13
IP  - 13
DP  - 2021 Apr 7
TI  - Synthesis and Characterization of a Multifunctional Sustained-Release 
      Organic-Inorganic Hybrid Microcapsule with Self-Healing and Flame-Retardancy 
      Properties.
PG  - 15668-15679
LID - 10.1021/acsami.1c01540 [doi]
AB  - As their service life increases, cement-based materials inevitably undergo 
      microcracking and local damage. In response to this problem, this study used 
      phacoemulsification-solvent volatilization to prepare a multifunctional 
      sustained-release microcapsule (SFRM) with self-healing and flame-retardant 
      characteristics. The synthesis of SFRM is based on the modification of ethyl 
      cellulose with nano-SiO(2) particles and cross-linking with a silane coupling 
      agent to form an organic-inorganic hybrid wall material. The epoxy resin is 
      blended with hexaphenoxy cyclotriphosphazene (HPCTP) to form a composite core 
      emulsion. The surface morphology, particle size distribution, core-shell 
      composition, and thermal stability of SFRM were analyzed via scanning electron 
      microscopy (SEM), energy-dispersive spectrometry (EDS), Malvern, 
      Fourier-transform infrared (FT-IR), and TD-DSC-DTG. It is concluded that SFRM was 
      successfully synthesized with superior particle size distribution and thermal 
      stability. When the ratio of SiO(2) solution and EC alcohol solution reached 1:2, 
      the particle size distribution of the microcapsules was 30-190 mum, and the D(50) 
      decreased to 70 mum. The core material content, slow-release performance, and 
      flame retardancy of SFRM were measured using a UV-1800 spectrophotometer and 
      Hartmann tubes, and the compressive and repair properties of SFRM were evaluated 
      by uniaxial compression tests. The results demonstrate that SFRM has satisfactory 
      slow-release and flame-retardancy properties, the LC is 67%, and the first-order 
      kinetic model shows the best fit and conforms to the non-Fickian diffusion 
      mechanism. The SFRM repair rate can reach approximately 61%. This is of 
      substantial significance to the field of self-repairing cement-based materials.
FAU - Jiang, Wenjing
AU  - Jiang W
AD  - College of Safety and Environmental Engineering, Shandong University of Science 
      and Technology, Qingdao 266590, China.
AD  - State Key Laboratory of Mining Disaster Prevention and Control Co-founded by 
      Shandong Province and the Ministry of Science and Technology, Shandong University 
      of Science and Technology, Qingdao 266590, China.
FAU - Zhou, Gang
AU  - Zhou G
AUID- ORCID: 0000-0003-2440-8417
AD  - College of Safety and Environmental Engineering, Shandong University of Science 
      and Technology, Qingdao 266590, China.
AD  - State Key Laboratory of Mining Disaster Prevention and Control Co-founded by 
      Shandong Province and the Ministry of Science and Technology, Shandong University 
      of Science and Technology, Qingdao 266590, China.
FAU - Duan, Jinjie
AU  - Duan J
AD  - College of Safety and Environmental Engineering, Shandong University of Science 
      and Technology, Qingdao 266590, China.
AD  - State Key Laboratory of Mining Disaster Prevention and Control Co-founded by 
      Shandong Province and the Ministry of Science and Technology, Shandong University 
      of Science and Technology, Qingdao 266590, China.
FAU - Liu, Dong
AU  - Liu D
AD  - College of Safety and Environmental Engineering, Shandong University of Science 
      and Technology, Qingdao 266590, China.
AD  - State Key Laboratory of Mining Disaster Prevention and Control Co-founded by 
      Shandong Province and the Ministry of Science and Technology, Shandong University 
      of Science and Technology, Qingdao 266590, China.
FAU - Zhang, Qingtao
AU  - Zhang Q
AUID- ORCID: 0000-0002-6972-8265
AD  - College of Safety and Environmental Engineering, Shandong University of Science 
      and Technology, Qingdao 266590, China.
AD  - State Key Laboratory of Mining Disaster Prevention and Control Co-founded by 
      Shandong Province and the Ministry of Science and Technology, Shandong University 
      of Science and Technology, Qingdao 266590, China.
FAU - Tian, Fuchao
AU  - Tian F
AD  - State Key Laboratory of Coal Mine Safety Technology, Shenyang Research Institute, 
      China Coal Technology and Engineering Group, Fushun 113122, China.
LA  - eng
PT  - Journal Article
DEP - 20210323
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
SB  - IM
OTO - NOTNLM
OT  - epoxy resin
OT  - flame-retardancy
OT  - organic-inorganic hybrid
OT  - self-healing
OT  - sustained-release microcapsule
EDAT- 2021/03/24 06:00
MHDA- 2021/03/24 06:01
CRDT- 2021/03/23 12:15
PHST- 2021/03/24 06:00 [pubmed]
PHST- 2021/03/24 06:01 [medline]
PHST- 2021/03/23 12:15 [entrez]
AID - 10.1021/acsami.1c01540 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2021 Apr 7;13(13):15668-15679. doi: 
      10.1021/acsami.1c01540. Epub 2021 Mar 23.