Synthesis, thermal properties and crystalline morphology of poly(trimethylene terephthalate)/ZnO nanocomposites prepared by dual in situ polymerization

2016 ◽  
Vol 27 (11) ◽  
pp. 1451-1457 ◽  
Author(s):  
Peng Li ◽  
Chenguang Yao ◽  
Guisheng Yang
2018 ◽  
Vol 48 ◽  
pp. 188-198 ◽  
Author(s):  
Zakaria Cherifi ◽  
Bouhadjar Boukoussa ◽  
Aniss Zaoui ◽  
Mohammed Belbachir ◽  
Rachid Meghabar

2012 ◽  
Vol 479-481 ◽  
pp. 395-398
Author(s):  
Dan Qing Chen

This document explains and demonstrates how to prepare Polyurethane(PU)/Expanded Graphite powder(EGp) composite antistatic sponge by in situ polymerization. The morphology、mechanical、electrical and thermal properties of the PU/EGp composite antistatic sponge have been investigated. PU/ EGp composite sponge have better mechanical properties than that of CB composite. The resistivity of PU/EGp composite antistatic sponge can reach at about 108Ω•cm at the content around 5wt% of the EGp. EGp can stably exist in PU sponge and has little influence to the polymeric matrix while being heated.


2011 ◽  
Vol 284-286 ◽  
pp. 940-944 ◽  
Author(s):  
Yan Lai Zhang ◽  
Zhong Hao Rao ◽  
Shuang Feng Wang ◽  
Hong Zhang ◽  
Li Jun Li ◽  
...  

The microencapsulated phase change material (PCM) slurry is a kind of mixture with the PCM microcapsule particles and water. The actual PCM in the microcapsule is composed of several kinds of paraffin waxes (mainly nonadecane), and the membrane is a type of melamine resin. This study is focused on preparation, characterization, and thermal properties of the microencapsulated (PCM) slurry. The microencapsulated PCM particles are prepared by in-situ polymerization method. Four different levels of mass concentration Cm of the PCM will be used such as Cm=10%, 20%, 30% and 40%, respectively. The diameter of the particles is distributed in the range of 0µm~4.5µm, and most (61%) of them occur in the range of 0.5µm~1.5µm. The average volumetric diameter of the PCM microcapsule particle is about 0.78µm. And the average membrane thickness is about 11nm.Thermal properties of the microencapsulated PCM slurry are determined using differential scanning calorimeter (DSC). From DSC analysis, the melting and freezing temperatures and the latent heats of Cm=30% are measured as 38°C and 25°C, and 37.9 kJ/kg, respectively. The rheological properties are measured by a rotating cylinder type of rheometer, which the slurry shows the pseudo plastic non-Newtonian fluid behavior with the power-law fluid index n.


Polimery ◽  
2016 ◽  
Vol 61 (03) ◽  
pp. 172-180 ◽  
Author(s):  
Sandra Paszkiewicz ◽  
Iwona Pawelec ◽  
Anna Szymczyk ◽  
Zbigniew Roslaniec

2016 ◽  
Vol 40 (4) ◽  
pp. 3612-3621 ◽  
Author(s):  
Gholamhossein Mohammadnezhad ◽  
Mohammad Dinari ◽  
Roozbeh Soltani

The addition of nanoboehmite as a nanofiller into the polymer matrix led to the improvement of the thermal properties and increased the active sites of nanocomposites for Cu(ii) removal.


e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 226-232 ◽  
Author(s):  
Peng Li ◽  
Jiajun Yu ◽  
Shaohua Jiang ◽  
Hong Fang ◽  
Kunming Liu ◽  
...  

AbstractAll-organic high dielectric materials are highly required in the field of modern electronic industry and energy storage. In this work, all-organic polyimide/polysulfone composite films with different amounts of PSF (PI/PSF-X) were prepared by in situ polymerization followed by film casting and thermal treatment. The dielectric, mechanical and thermal properties of these PI/PSF-X composite films are characterized by dielectric measurement, tensile test, thermogravimetric analysis and dynamic mechanical analysis. The results suggest that the PI/PSF-X composite films have good dielectric properties, good mechanical properties and excellent thermal properties, which are suitable for applications in electronic devices in harsh environments, especially in high-temperature environments.


2012 ◽  
Vol 482-484 ◽  
pp. 1596-1599
Author(s):  
Dian Wu Huang ◽  
Hong Mei Wang

In this study, phase change microcapsules were prepared by in situ polymerization using paraffin as core material, poly(MMA -co- MAA) as shell material, Tween60/span60 as emulsifier. The surface morphology, thermal properties and particle size distribution of the prepared microcapsules were investigated by using SEM, TGA, DSC and ELS. The effects of paraffin core content and amount of emulsifier on the properties of microcapsules were studied.


2013 ◽  
Vol 47 ◽  
pp. 850-856 ◽  
Author(s):  
Yuqi Li ◽  
Diyuan Pan ◽  
Shoubin Chen ◽  
Qihua Wang ◽  
Guangqin Pan ◽  
...  

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