scholarly journals Development of High Performance Elastomers with Inorganic Filler. 1. Effects of Inorganic Fillers on the Properties of Vulcanizates.

2005 ◽  
Vol 78 (1) ◽  
pp. 26-32 ◽  
Author(s):  
Soji Kodama

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 614
Author(s):  
Vo Pham Hoang Huy ◽  
Seongjoon So ◽  
Jaehyun Hur

Among the various types of polymer electrolytes, gel polymer electrolytes have been considered as promising electrolytes for high-performance lithium and non-lithium batteries. The introduction of inorganic fillers into the polymer-salt system of gel polymer electrolytes has emerged as an effective strategy to achieve high ionic conductivity and excellent interfacial contact with the electrode. In this review, the detailed roles of inorganic fillers in composite gel polymer electrolytes are presented based on their physical and electrochemical properties in lithium and non-lithium polymer batteries. First, we summarize the historical developments of gel polymer electrolytes. Then, a list of detailed fillers applied in gel polymer electrolytes is presented. Possible mechanisms of conductivity enhancement by the addition of inorganic fillers are discussed for each inorganic filler. Subsequently, inorganic filler/polymer composite electrolytes studied for use in various battery systems, including Li-, Na-, Mg-, and Zn-ion batteries, are discussed. Finally, the future perspectives and requirements of the current composite gel polymer electrolyte technologies are highlighted.



Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 193
Author(s):  
Guang Yang ◽  
Zongli Xie ◽  
Marlene Cran ◽  
Chunrui Wu ◽  
Stephen Gray

Pervaporation (PV) has been an intriguing membrane technology for separating liquid mixtures since its commercialization in the 1980s. The design of highly permselective materials used in this respect has made significant improvements in separation properties, such as selectivity, permeability, and long-term stability. Mixed-matrix membranes (MMMs), featuring inorganic fillers dispersed in a polymer matrix to form an organic–inorganic hybrid, have opened up a new avenue to facilely obtain high-performance PV membranes. The combination of inorganic fillers in a polymer matrix endows high flexibility in designing the required separation properties of the membranes, in which various fillers provide specific functions correlated to the separation process. This review discusses recent advances in the use of nanofillers in PV MMMs categorized by dimensions including zero-, one-, two- and three-dimensional nanomaterials. Furthermore, the impact of the nanofillers on the polymer matrix is described to provide in-depth understanding of the structure–performance relationship. Finally, the applications of nanofillers in MMMs for PV separation are summarized.



2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Min Yu ◽  
Runzhou Huang ◽  
Chunxia He ◽  
Qinglin Wu ◽  
Xueni Zhao

Reinforcing effect of hybrid filler including wheat straw (WS) and inorganic filler (heavy calcium carbonate, silicon dioxide, and fly ash) in recycled polypropylene (R-PP) has been investigated. The effects of individual filler (WS) and combined fillers (WS and inorganic filler) on morphological, mechanical, and thermal expansion and water absorption properties of hybrid composites were investigated. The flexural modulus and flexural strength were both reduced when reinforced with three kinds of inorganic fillers, respectively, which was possibly due to the poor interphase adhesion as observed in SEM. The high surface energy of heavy calcium carbonate due to its high acidic character provides an opportunity of better PP-heavy calcium carbonate interfacial interactions compared to PP-straw, PP-fly ash, and PP-SiO2interface. The water absorption at saturation increased markedly by introduction of WS in it. The hybrid composites from WS and inorganic fillers showed better water absorption compared to those WS/PP composites. The thermal expansion of composites decreased with the increase of WS loading. Heavy calcium and SiO2can obviously reduce the LCTE value of composite. At the 25% inorganic filler content, composites had the smallest LCTE values.



Author(s):  
M. H. Dkhaibe ◽  
M. F. Tabshe ◽  
M. A. Khatib ◽  
M. Maksud ◽  
N. V. Sidorenko ◽  
...  

There were results of research on the influence of inorganic filler of tungstate on the curing process, stress-strain properties and fire resistance of polymer composition based on epoxy resin ED-20 cured by polyamine in this paper. It's showed on the increase physical-mechanical property and fire resistant polymer compositions incorporated tungstate.



Author(s):  
M. H. Dkhaibe ◽  
M. F. Tabshe ◽  
M. A. Khatib ◽  
M. Maksud ◽  
N. V. Sidorenko ◽  
...  

There were results of research on the influence of inorganic filler of tungstate on the curing process, stress-strain properties and fire resistance of oligomer-polymer composition based on epoxy resin ED-20 with PVC cured by polyamine in this paper. It's showed on the increase physical-mechanical property and fire resistant polymer compositions incorporated tungstate.



Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1318
Author(s):  
Lenuta Stroea ◽  
Andreea-Laura Chibac-Scutaru ◽  
Violeta Melinte

The design of high-performance nanocomposites with improved mechanical, thermal or optical properties compared to starting polymers has generated special interest due to their use in a wide range of targeted applications. In the present work, polymer nanocomposites composed of polyurethane elastomers based on polycaprolactone or polycaprolactone/poly(ethylene glycol) soft segments and titanium dioxide (TiO2) nanoparticles as an inorganic filler were prepared and characterized. Initially, the surface of TiO2 nanoparticles was modified with (3-iodopropyl) trimethoxysilane as a coupling agent, and thereafter, the tertiary amine groups from polyurethane hard segments were quaternized with the silane-modified TiO2 nanoparticles in order to ensure covalent binding of the nanoparticles on the polymeric chains. In the preparation of polymer nanocomposites, two quaternization degrees were taken into account (1/1 and 1/0.5 molar ratios), and the resulting nanocomposite coatings were characterized by various methods (Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, contact angle, thermogravimetric analysis, dynamic mechanical thermal analysis). The mechanical parameters of the samples evaluated by tensile testing confirm the elastomeric character of the polyurethanes and of the corresponding composites, indicating the obtaining of highly flexible materials. The absorbance/transmittance measurements of PU/TiO2 thin films in the wavelength range of 200–700 nm show that these partially block UV-A radiation and all UV-B radiation from sunlight and could possibly be used as UV-protective elastomeric coatings.



2020 ◽  
Vol 869 ◽  
pp. 348-356
Author(s):  
Tatyana A. Pugacheva ◽  
Vladimir G. Kurbatov ◽  
Eugene A. Indeikin

The kinetics of the synthesis of polyaniline in the presence of inorganic fillers was studied. It is shown that the acid-base surface properties of the inorganic filler affect the polymerization time. The introduction of a filler in the reaction mass containing aniline leads to a decrease in the induction period of oxidative polymerization. The decrease in the induction period is due to the fact that aniline is adsorbed on the surface of the filler. This leads to the fact that polyaniline is formed as a thin layer on the surface of the carrier. With a further increase in the content of inorganic filler, the time of the induction period increases. This is due to the fact that the surface of talc has a basic character. The use of mica as an inorganic filler leads to a decrease in the induction period of polymerization in the entire range of the carrier content studied.



Sign in / Sign up

Export Citation Format

Share Document