Effect of layered silicates and reactive compatibilization on structure and properties of melt-drawn HDPE/PA6 microfibrillar composites

2015 ◽  
Vol 73 (6) ◽  
pp. 1673-1688 ◽  
Author(s):  
Ivan Kelnar ◽  
Ludmila Kaprálková ◽  
Jaroslav Kratochvíl ◽  
Zdeněk Padovec ◽  
Milan Růžička ◽  
...  
Keyword(s):  
Layered Silicates ◽  
Structure And Properties ◽  
Reactive Compatibilization ◽  
Microfibrillar Composites

Polymer/Clay Nanocomposites Produced by Dispersing Layered Silicates in Thermoplastic Melts

2021 ◽  
pp. 1002-1030
Author(s):  
S. S. Pesetskii ◽  
S. P. Bogdanovich ◽  
V. N. Aderikha
Keyword(s):  
Polymer Blends ◽  
Hybrid Composites ◽  
Structural Features ◽  
Layered Silicates ◽  
Clay Nanocomposites ◽  
Structure And Properties ◽  
High Modulus ◽  
Thermoplastic Polymers ◽  
Technological Factors ◽  
Melt Compounding

Results of the studies of technology, structural features and properties of polymer/clay nanocomposites (n-PCM) prepared by melt compounding of thermoplastic polymers are systematized. Special attention is given to the analysis of the effect of nanoclays modification with surfactants on properties of nanocomposites and preparation features of nanomaterials based on polar, non-polar thermoplastics and polymer blends. Effect of technological factors and special compounding regimes in the technology of n-PCM with advanced technical characteristics is considered. Results of the original studies of the structure and properties of the hybrid composites, filled by high modulus fibers in addition to nanoclays, are presented.

Organophilic Layered Silicate Modified Vinylester-Urethane Hybrid Resins: Structure and Properties

2008 ◽  
Vol 16 (8) ◽  
pp. 547-554
Author(s):  
M.-C. Corobea ◽  
D. Donescu ◽  
S. Grishchuk ◽  
N. Castellà ◽  
A.A. Apostolov ◽  
...  
Keyword(s):  
Layered Silicate ◽  
Compact Tension ◽  
Mechanical Tests ◽  
Layered Silicates ◽  
Sorption Behavior ◽  
Structure And Properties ◽  
Quaternary Amine ◽  
X Ray ◽  
Hybrid Resin ◽  
Crosslinking Reactions

A commercial vinylester-urethane (VEUH) hybrid resin was modified with organophilic layered silicates (OLS), incorporated in various amounts (0.1 to 5 wt.%). As organophilic intercalants of the layered silicate (synthetic fluorohectorite) trimethyl dodecylamine (TMDA) and octadecylamine - N,N-bis[allyl(2-hydroxypropyl)ether] (OAE) served. The latter quaternary amine was expected to support the intercalation/exfoliation of the silicate by participating in the crosslinking reactions. Both OLS types became intercalated based on X-ray diffractograms (XRD). Dynamic-mechanical thermal analysis (DMTA) displayed a slight increase in the stiffness by adding OLS up to 2.5 wt.%. However, at 5wt% OLS content the stiffness of the nanocomposites was below that of the unfilled hybrid resin. The glass transition temperature (Tg) did not change practically with the OLS type and content. Fracture mechanical tests were performed on compact tension (CT) specimens. The fracture toughness (Kc) increased slightly, while the fracture energy (Gc) markedly with increasing OLS content. Unexpectedly, TMDA proved to be a more suitable intercalant than OAE. The failure mode of the specimens was studied in a scanning electron microscope (SEM) and discussed. In addition, the water sorption behavior of the OLS modified VEUHs was determined and the diffusion coefficients (D) deduced.

Polyolefin Layered Silicates Nanocomposites – A Review

2013 ◽  
Vol 594-595 ◽  
pp. 671-675 ◽  
Author(s):  
Daud Yusrina Mat ◽  
Hussin Kamarudin ◽  
C.M. Ruzaidi ◽  
Azlin Fazlina Osman
Keyword(s):  
Preparative Method ◽  
Layered Silicates ◽  
Inorganic Filler ◽  
Structure And Properties

A review is given of polyolefins layered silicates nanocomposites. This group of commodity thermoplastic is widely used and gain a great attention among researcher now days for nanocomposite preparation with layered silicates as inorganic filler. Herein, the structure and properties of layered silicates, compatibilzations of polyolefins, the syhthesise preparative method are discussed in general.

Relationship between the Processing, Structure, and Properties of Microfibrillar Composites

2020 ◽  
Vol 32 (52) ◽  
pp. 2003938 ◽  
Author(s):  
Maja Kuzmanović ◽  
Laurens Delva ◽  
Ludwig Cardon ◽  
Kim Ragaert
Keyword(s):  
Structure And Properties ◽  
Microfibrillar Composites

scholarly journals THE CORROSION STABILITY INCREASE OF ADHERING COATING UNDER THE PROCESS OF ELECTROCHEMICAL MECHANISM

2019 ◽  
Vol 2019 (4) ◽  
pp. 257-262
Author(s):  
S Turabdzhanov ◽  
◽  
M Lee ◽  
U Ziyamukhamedova ◽  
G Miradullaeva
Keyword(s):  
Protective Coatings ◽  
Layered Silicates ◽  
Structure And Properties ◽  
Chemical Methods ◽  
Corrosion Stability ◽  
Interfacial Layers ◽  
Anticorrosive Coatings ◽  
Physico Chemical ◽  
Electrochemical Mechanism ◽  
Mineral Fillers

The article discusses the development of organomineral materials for the protection of metal parts of technological machines and structures operating mainly under the influence of an electrochemical environment. A technology has been developed for producing modified organomineral materials for anticorrosive coatings using micro- and nanosized particles of layered silicates (mineral fillers). The mechanism of the formation of nanocomposites using layered silicates and organic materials for anti-corrosion coatings formed by the activation-heliotechnological method is investigated. Using thermomechanical, physical and physico-chemical methods for studying the structure and properties of the materials obtained. Among these methods are: IR spectral analysis, scanning electron microscopy, thermogravimetry, as well as methods for determining the electrophysical and mechanical properties. And the improvement of the properties of organomineral protective coatings due to the formation of nanocomplex compounds in the interfacial layers of the binder-filler is proved

Polymer/Clay Nanocomposites Produced by Dispersing Layered Silicates in Thermoplastic Melts

2019 ◽  
pp. 66-94 ◽  
Author(s):  
S. S. Pesetskii ◽  
S. P. Bogdanovich ◽  
V. N. Aderikha
Keyword(s):  
Polymer Blends ◽  
Hybrid Composites ◽  
Structural Features ◽  
Layered Silicates ◽  
Clay Nanocomposites ◽  
Structure And Properties ◽  
High Modulus ◽  
Thermoplastic Polymers ◽  
Technological Factors ◽  
Melt Compounding

Results of the studies of technology, structural features and properties of polymer/clay nanocomposites (n-PCM) prepared by melt compounding of thermoplastic polymers are systematized. Special attention is given to the analysis of the effect of nanoclays modification with surfactants on properties of nanocomposites and preparation features of nanomaterials based on polar, non-polar thermoplastics and polymer blends. Effect of technological factors and special compounding regimes in the technology of n-PCM with advanced technical characteristics is considered. Results of the original studies of the structure and properties of the hybrid composites, filled by high modulus fibers in addition to nanoclays, are presented.

PC/ABS Nanocomposites with Layered Silicates Obtaining, Structure and Properties

2016 ◽  
Vol 721 ◽  
pp. 38-42 ◽  
Author(s):  
Rūta Saldābola ◽  
Remo Merijs Meri ◽  
Janis Zicans ◽  
Tatjana Ivanova ◽  
Rita Berzina
Keyword(s):  
Flame Retardants ◽  
Electronic Waste ◽  
Thermal Characteristics ◽  
Acrylonitrile Butadiene Styrene ◽  
Layered Silicates ◽  
Structure And Properties ◽  
Mechanical Stiffness ◽  
Binary Blends ◽  
Thermal Stability Of ◽  
Butadiene Styrene

Due it increasing use in electronics, polymers, mainly acrylonitrile-butadiene-styrene (ABS) and its blend with polycarbonate (PC), are making considerable part of electronic waste. It has been proven that halogenated flame retardants used in polymers for electronics are toxic to environment and human health. Aim of the research is to evaluate the effects of nanostructured montmorillonite clay (D43B) addition on the mechanical and thermal characteristics of PC, ABS and its binary blends. The effect of substitution of virgin polymers in the blend with recycled ones has been also investigated. It has been determined that as far as the recycled polymer content in the composites does not exceed 10wt.%, tensile and thermal properties of the systems are not considerably affected. Addition of D43B up to 1,0-1,5wt.% contributes to the increment of mechanical stiffness, strength and thermal stability of the composites.

scholarly journals Effect of halloysite on structure and properties of melt-drawn PCL/PLA microfibrillar composites

2016 ◽  
Vol 10 (5) ◽  
pp. 381-393 ◽  
Author(s):  
I. Kelnar ◽  
J. Kratochvil ◽  
I. Fortelny ◽  
L. Kapralkova ◽  
A. Zhigunov ◽  
...  
Keyword(s):  
Structure And Properties ◽  
Microfibrillar Composites

Effect of layered silicates on fibril formation and properties of PCL/PLA microfibrillar composites

2015 ◽  
Vol 133 (8) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ivan Kelnar ◽  
Ivan Fortelný ◽  
Ludmila Kaprálková ◽  
Jaroslav Kratochvíl ◽  
Borislav Angelov ◽  
...  
Keyword(s):  
Fibril Formation ◽  
Layered Silicates ◽  
Microfibrillar Composites

Elastomer Nanocomposites

2008 ◽  
Vol 81 (3) ◽  
pp. 384-469 ◽  
Author(s):  
Madhuchhanda Maiti ◽  
Mithun Bhattacharya ◽  
Anil K. Bhowmick
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Volume Fraction ◽  
Layered Silicate ◽  
Barrier Properties ◽  
Review Article ◽  
Layered Silicates ◽  
Structure And Properties ◽  
Uniform Dispersion ◽  
Low Volume

Abstract Recently, elastomer - nanocomposites reinforced with low volume fraction of nanofillers have attracted great interest due to their fascinating properties. The incorporation of nanofillers such as layered silicate clays, carbon nanotubes, nanofibers, calcium carbonate, metal oxides or silica nanoparticles into elastomers improves significantly their mechanical, thermal, dynamic mechanical, barrier properties, flame retardancy, etc. The properties of nanocomposites depend greatly on the chemistry of polymer matrices, nature of nanofillers, and the method in which they are prepared. The uniform dispersion of nanofillers in elastomer matrices is a general prerequisite for achieving desired mechanical and physical characteristics. In this review article, current developments in the field of elastomer nanocomposites reinforced with layered silicates, silica, carbon nanotubes, nanofibers and various other nanoparticles have been addressed. Attention has been paid to the structure and properties of such high-performance nanocomposites, along with the theories and models existing in this field.

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