In Situ Polymerization Organic-Inorganic Hybrid Materials Monomer Casting Polyamide 6/ Nanorods Yttrium Hydroxide

2013 ◽  
Vol 662 ◽  
pp. 24-27 ◽  
Author(s):  
Wei He ◽  
Mi Zhuang ◽  
Yan Xin Li ◽  
A.S. Luyt ◽  
Tie Jun Ge
Keyword(s):  
Mass Fraction ◽  
Synthesis Method ◽  
Polyamide 6 ◽  
Mechanical And Thermal Properties ◽  
Sem Images ◽  
Inorganic Particles ◽  
Yttrium Hydroxide ◽  
Alkaline Conditions ◽  
The Impact

Single crystalline Y(OH)3 nanorods were synthesized from Y2O3 powder by a simple hydrothermal synthesis method under alkaline conditions. SEM images displayed that the nanorods have average diameters of about 400nm and lengths up to several micrometers. In this paper, it is used nano-inorganic particles yttrium hydroxide to modified MC nylon. The different mass fraction of yttrium hydroxide has affected mechanical and thermal properties of the MC nylon composites. The results show that with increasing of the mass fraction of yttrium hydroxide, the impact strength is the highest value when yttrium hydroxide mass fraction of 0.25wt%, however the tensile strength decrease 20%. And there is a little change in thermal stability when Yttrium Hydroxide added.

Hybrid Pu/Synthetic Talc/Organic Clay Ternary Nanocomposites: Thermal, Mechanical and Morphological Properties

2018 ◽  
Vol 26 (2) ◽  
pp. 127-140 ◽  
Author(s):  
Guilherme Dias ◽  
Manoela Prado ◽  
Rosane Ligabue ◽  
Mathilde Poirier ◽  
Christophe Le Roux ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Morphological Properties ◽  
Mechanical And Thermal Properties ◽  
Thermal And Mechanical Properties ◽  
Inorganic Particles ◽  
Metallic Mineral ◽  
Organically Modified ◽  
Organic Clay ◽  
Polyurethane Matrix

Polyurethane (PU) nanocomposites filled with inorganic particles, aiming at the improvement of mechanical and thermal properties, are well known. Unlike previous work we describe here the combination of two fillers, synthetic talc (silico-metallic mineral particles-SSMMP) with distinct hydrothermal processes (SSMMP 7 h and 24 h) and organically-modified commercial clay (SPR), aiming towards development of new polyurethane ternary nanocomposites by in situ polymerisation. Fillers were added 3 wt.% of the mass of pristine polymer, with a ranging of weight proportions (75:25/25:75) of SSMMP and SPR. Results were compared to those for nanocomposites containing pure SSMMP and SPR fillers. Dispersion degrees and filler interactions with the polyurethane matrix were followed by FTIR, XRD, SEM, TEM and AFM techniques. Results showed that the fillers presented a good dispersion and were exfoliated/ well dispersed in the polyurethane matrix. Thermal and mechanical properties of nanocomposites were evaluated in comparison to the binary nanocomposites (PU/SSMMP 7 h, PU/SSMMP 24 h and PU/ SPR). All nanocomposites presented superior values of Young's modulus to that of pristine PU. Results evidenced that the blend of SSMMP and SPR fillers is an interesting strategy to improve thermal and mechanical properties of nanocomposites.

Mechanical and Thermal Properties of Polyamide 6 Nanocomposite Toughened with Epoxidised Natural Rubber-25

2011 ◽  
Vol 471-472 ◽  
pp. 518-523 ◽  
Author(s):  
Nematzadeh Navid ◽  
Uzir Wahit Mat ◽  
Hassan Azman ◽  
Mahmoudian Shaya
Keyword(s):  
Thermal Properties ◽  
Natural Rubber ◽  
Tensile Modulus ◽  
Polyamide 6 ◽  
Mechanical And Thermal Properties ◽  
Gravimetric Analysis ◽  
Wide Range ◽  
Injection Molded ◽  
The Impact ◽  
Thermal Stability Of

Polyamide (PA6) is an engineering plastic with wide range of applications and the development in the field of montmorillonite (MMT) filled polymer nanocomposites has resulted in the development of PA6/MMT nanocomposites. However, MMT filled PA6 nanocomposites are notch sensitive and brittle at low temperatures, which posed as a major setback for many of its applications. The main objective of this study is to enhance the toughness of PA6/MMT (100/4) nanocomposites with epoxidised natural rubber-25 (ENR25). The ENR-25 content in the composites ranged from 15 to 30 wt%. The PA6/ENR/MMT nanocomposites were extruded and injection molded into tensile and impact test samples. The addition of ENR25 into PA6/MMT nanocomposites improved the impact strength of the nanocomposites while tensile modulus and tensile strength decreased with increasing ENR25 content. The thermal properties of PA6/ENR/MMT nanocomposites were also investigated via thermal gravimetric analysis (TGA). Both T10% and derivative thermal analysis (DTA) determined the lower thermal stability of PA6/MMT nanocomposites after addition of ENR.

Tailoring the impact behavior of polyamide 6 ternary blends via a hierarchical core–shell structure in situ formed in melt mixing

RSC Advances ◽  
2015 ◽  
Vol 5 (19) ◽  
pp. 14592-14602 ◽  
Author(s):  
Rui Dou ◽  
Chao Shen ◽  
Bo Yin ◽  
Ming-bo Yang ◽  
Bang-hu Xie
Keyword(s):  
Shell Structure ◽  
Polyamide 6 ◽  
Impact Behavior ◽  
Ternary Blend ◽  
Core Shell ◽  
Ternary Blends ◽  
Melt Mixing ◽  
Core Shell Structure ◽  
The Impact

The hierarchical core–shell structure in PA6/HDPE-g-MA/EPDM ternary blend was firstly formed using simple melt mixing. A super toughness PA6 ternary blends with HDPE-g-MA multi-core structure was obtained.

Improvement of Electrical Conductivity of Polyamide 6/Polyaniline Blends by Graphene

2020 ◽  
Vol 831 ◽  
pp. 117-121
Author(s):  
Sirikunya Suksanit ◽  
Prasit Pattananuwat ◽  
Pranut Potiyaraj
Keyword(s):  
Thermal Stability ◽  
Electrical Conductivity ◽  
Fourier Transform ◽  
Synthesis Method ◽  
Polyamide 6 ◽  
Reduced Graphene ◽  
The Fourier Transform ◽  
Thermal Stability Of ◽  
Scanning Electron

Polymer composites of polyaniline (PANI)/polyamide 6 (PA6) blends and reduced graphene oxide (rGO) were prepared via the in situ synthesis method in order to improve formability and electrical properties. Polymer blends and composites were characterized by the Fourier transform infrared spectroscopy, scanning electron microscopy, and thermal gravimetric analysis. It was found that the composites prepared by the in situ synthesis method have better compatibility between polymer blends and matrix than that prepared by the conventional dry-mix method as investigated by scanning electron microscope (SEM). The Fourier-transform infrared (FT-IR) spectrograms indicate the presence of covalent bonds between functional groups between polyaniline and reduced graphene oxide. The PA6/PANI-rGO films show the electrical conductivity of 2.970×10-6 S/cm while PA6/PANI-GtO show electrical conductivity of 4.082×10-7 S/cm. Thermal stability of polymer blend was characterized by the thermogravimetric analysis. The thermal stability of polyamide 6 after blending is not changed significantly.

In situ Quantification of the Impact of Episodic Enhanced Turbulent Events in Large Phytoplankton

2011 ◽  
Author(s):  
Percy L. Donaghay ◽  
Jan Rines ◽  
James Sullivan
Keyword(s):  
The Impact

Recent Advances and Need of Green Synthesis in Two-Dimensional Materials for Energy Conversion and Storage Applications

2021 ◽  
Vol 16 ◽  
Author(s):  
Joice Sophia Ponraj ◽  
Muniraj Vignesh Narayanan ◽  
Ranjith Kumar Dharman ◽  
Valanarasu Santiyagu ◽  
Ramalingam Gopal ◽  
...  
Keyword(s):  
Energy Storage ◽  
Green Synthesis ◽  
2D Materials ◽  
Synthesis Method ◽  
Energy Storage And Conversion ◽  
Two Dimensional ◽  
Severe Problem ◽  
Energy Conversion And Storage ◽  
Energy Application ◽  
The Impact

: Increasing energy crisis across the globe requires immediate solutions. Two-dimensional (2D) materials are in great significance because of its application in energy storage and conversion devices but the production process significantly impacts the environment thereby posing a severe problem in the field of pollution control. Green synthesis method provides an eminent way of reduction in pollutants. This article reviews the importance of green synthesis in the energy application sector. The focus of 2D materials like graphene, MoS2, VS2 in energy storage and conversion devices are emphasized based on supporting recent reports. The emerging Li-ion batteries are widely reviewed along with their promising alternatives like Zn, Na, Mg batteries and are featured in detail. The impact of green methods in the energy application field are outlined. Moreover, future outlook in the energy sector is envisioned by proposing an increase in 2D elemental materials research.

Bayesian analysis reveals the impact of load partitioning on microstructural evolution in Ti-6Al-4V during in-situ tensile loading

Materialia ◽  
2021 ◽  
Vol 15 ◽  
pp. 100993
Author(s):  
N. Armstrong ◽  
P.A. Lynch ◽  
P. Cizek ◽  
S.R. Kada ◽  
S. Slater ◽  
...  
Keyword(s):  
Bayesian Analysis ◽  
Microstructural Evolution ◽  
Tensile Loading ◽  
The Impact

scholarly journals Solid-Phase Extraction Embedded Dialysis (SPEED), an Innovative Procedure for the Investigation of Microbial Specialized Metabolites

Marine Drugs ◽  
2021 ◽  
Vol 19 (7) ◽  
pp. 371
Author(s):  
Phuong-Y Mai ◽  
Géraldine Le Goff ◽  
Erwan Poupon ◽  
Philippe Lopes ◽  
Xavier Moppert ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Chemical Space ◽  
Molecular Profile ◽  
Phase Extraction ◽  
Specialized Metabolites ◽  
Streptomyces Albidoflavus ◽  
Cultivation Process ◽  
The Impact

Solid-phase extraction embedded dialysis (SPEED technology) is an innovative procedure developed to physically separate in-situ, during the cultivation, the mycelium of filament forming microorganisms, such as actinomycetes and fungi, and the XAD-16 resin used to trap the secreted specialized metabolites. SPEED consists of an external nylon cloth and an internal dialysis tube containing the XAD resin. The dialysis barrier selects the molecular weight of the trapped compounds, and prevents the aggregation of biomass or macromolecules on the XAD beads. The external nylon promotes the formation of a microbial biofilm, making SPEED a biofilm supported cultivation process. SPEED technology was applied to the marine Streptomyces albidoflavus 19-S21, isolated from a core of a submerged Kopara sampled at 20 m from the border of a saltwater pond. The chemical space of this strain was investigated effectively using a dereplication strategy based on molecular networking and in-depth chemical analysis. The results highlight the impact of culture support on the molecular profile of Streptomyces albidoflavus 19-S21 secondary metabolites.

Sign in / Sign up

Export Citation Format

Share Document