Synthesis of Polystyrene/Polysilsesquioxane Core/Shell Composite Particles via Emulsion Polymerization in the Existence of Poly(γ-Methacryloxypropyl trimethoxysilane) Sol

Langmuir ◽  
2012 ◽  
Vol 29 (1) ◽  
pp. 92-101 ◽  
Author(s):  
Shenglin Yang ◽  
Chunfeng Song ◽  
Teng Qiu ◽  
Longhai Guo ◽  
Xiaoyu Li
Keyword(s):  
Emulsion Polymerization ◽  
Composite Particles ◽  
Core Shell ◽  
Shell Composite ◽  
Methacryloxypropyl Trimethoxysilane

Physico‐mechanical properties and flammability of PUR/PIR foams containing expandable graphite core‐shell composite particles

2019 ◽  
Vol 40 (10) ◽  
pp. 3805-3813 ◽  
Author(s):  
Kamila Gosz ◽  
Józef Haponiuk ◽  
Aleksandra Mielewczyk‐Gryń ◽  
Łukasz Piszczyk
Keyword(s):  
Mechanical Properties ◽  
Composite Particles ◽  
Expandable Graphite ◽  
Core Shell ◽  
Shell Composite

Controlled detonation synthesis of nano Fe-based oxides/SiO2 core-shell composite particles

2020 ◽  
Vol 740 ◽  
pp. 137016
Author(s):  
Xiaohong Wang ◽  
Liang Guo ◽  
Xiaojie Li ◽  
Xueqi Li ◽  
Lingjie Kong ◽  
...  
Keyword(s):  
Composite Particles ◽  
Core Shell ◽  
Detonation Synthesis ◽  
Shell Composite

THERMODYNAMIC AND KINETIC ANALYSES OF SYNTHESIZING ZrB2@Al(OH)3–Y(OH)3 CORE–SHELL COMPOSITE PARTICLES

2007 ◽  
Vol 14 (01) ◽  
pp. 117-122 ◽  
Author(s):  
JIEGUANG SONG ◽  
LIANMENG ZHANG ◽  
JUNGUO LI ◽  
JIANRONG SONG
Keyword(s):  
High Temperature ◽  
High Performance ◽  
Solubility Product ◽  
Ceramic Materials ◽  
Precipitation Method ◽  
Composite Particles ◽  
Core Shell ◽  
High Temperature Strength ◽  
Co Precipitation ◽  
Shell Composite

ZrB 2 has some excellent performances, but it is easily oxidized at high temperatures to impact the high-temperature strength, which restricts its applied range. To protect from the oxidization and improve the strength of ZrB 2 at high temperature, the surface of ZrB 2 particles is coated with the Al ( OH )3– Y ( OH )3 shell to synthesize ZrB 2@ Al ( OH )3– Y ( OH )3 core–shell composite particles. Through the thermodynamic and kinetic analyses of the heterogeneous nucleation and homogeneous nucleation, the concentration product of precursor ion ( Y 3+ or Al 3+) and OH - (Qi) must be greater than the solubility product (K sp ), respectively; the conditions of Y 3+ and Al 3+ are reached to produce Al ( OH )3– Y ( OH )3 shell on the ZrB 2 surface between the Y 3+ line and the AlO 2- line. Through TEM and XRD analyses, ZrB 2@ Al ( OH )3– Y ( OH )3 core–shell composite particles are successfully synthesized by the co-precipitation method, the shell layer quality is better at pH = 9, which established the foundation for preparing high-performance YAG / ZrB 2 and Al 2 O 3– YAG / ZrB 2 multiphase ceramic materials.

Effect of core–shell composite particles on the sintering behavior and properties of nano-Al2O3/polystyrene composite prepared by SLS

2006 ◽  
Vol 60 (9-10) ◽  
pp. 1219-1223 ◽  
Author(s):  
Haizhong Zheng ◽  
Jian Zhang ◽  
Shiqiang Lu ◽  
Gaochao Wang ◽  
Zhifeng Xu
Keyword(s):  
Composite Particles ◽  
Sintering Behavior ◽  
Core Shell ◽  
Shell Composite

Preparation and Characterization of Magnetic Functional Hybrid Particles

2011 ◽  
Vol 101-102 ◽  
pp. 918-921
Author(s):  
Hui Ying Wen ◽  
Hai Feng Fang ◽  
Shen Ling Xiao
Keyword(s):  
Magnetite Nanoparticles ◽  
Magnetic Particles ◽  
Miniemulsion Polymerization ◽  
Polystyrene Latex ◽  
Composite Particles ◽  
Core Shell ◽  
Hybrid Particles ◽  
Latex Particles ◽  
Shell Particles ◽  
Shell Composite

Hybrid microspheres with a polystyrene core coated with magnetite nanoparticles were prepared by two techniques. Firstly, monodispersed functional polystyrene latex particles were prepared by emulsion polymerization. In a general way chemical groups may be introduced through polymerizable surfactant or functional monomer. Magnetite acidic or alkaline sol was added in, then magnetite nanoparticles were absorbed onto latex particles by electrostatic attraction and core-shell composite particles were formed. Secondly, core-shell composite particles were prepared by miniemulsion polymerization. To modify the tendency of conglomeration of magnetite and increase the amount of magnetic particles onto the composite particles, silane coupling agent MPS was used as surface modification agent for magnetite. A series of different size and coating morphology magnetic hybrid particles were prepared through the adjustment of some experiment parameters. The obtained functional core-shell particles were characterized by FTIR, TEM, etc.

Luminescent properties of YVO4:Eu/SiO2 core–shell composite particles

2009 ◽  
Vol 12 (2) ◽  
pp. 635-643 ◽  
Author(s):  
Amurisana Bao ◽  
Hua Lai ◽  
Yuming Yang ◽  
Zhilong Liu ◽  
Chunyan Tao ◽  
...  
Keyword(s):  
Luminescent Properties ◽  
Composite Particles ◽  
Core Shell ◽  
Shell Composite
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