scholarly journals Structures, Optical and Mechanical Properties of PLA/ZnO SiO2 Al2O3 Composite Elaborated by a Solvent Casting Method

Proceedings ◽  
2019 ◽  
Vol 26 (1) ◽  
pp. 18
Author(s):  
Bouamer ◽  
Benrekaa ◽  
Younes
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Solvent Casting ◽  
Casting Method ◽  
Al2o3 Composite ◽  
Optical And Mechanical Properties

In this study, granulated polylactic acid and ZnO, SiO2 and Al2O3 powders were mixed to form PLA/ZnO and PLA/ZnO SiO2 Al2O3 composites with different concentrations using a solvent casting method. [...]

scholarly journals Effect of the Concentration of SrAl2O4: Eu2+and Dy3+ (SAO) on Characteristics and Properties of Environment-Friendly Long-Persistent Luminescence Composites from Polylactic Acid and SAO

Scanning ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Zhongjin Ni ◽  
Tianyu Fan ◽  
Shuyang Bai ◽  
Shiyu Zhou ◽  
Yan Lv ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Fluorescence Decay ◽  
Solvent Casting ◽  
Strontium Aluminate ◽  
Good Adhesion ◽  
Casting Method ◽  
Environment Friendly ◽  
The Matrix ◽  
Target Characteristics

We report luminous polylactic acid (PLA) composite prepared via a solvent casting method using different amounts of phosphor strontium aluminate (SrAl2O4: Eu2+ and Dy3+) (SAO). The reason for doing this is that the changes of fluorescence and mechanical properties in the composites with different SAO contents can be directly evaluated. The SAO particles should have a variety of excellent characteristics in the PLA matrix, among which dispersibility and compatibility are particularly important; so, they can be modified by 3-aminopropyltriethoxysilane (APS) to achieve the target characteristics. The results showed that the fluorescence and mechanical properties were affected by SAO addition. The mechanical properties significantly improved with 5 wt% SAO; further, addition had no impact. And the emission band of fluorescence and phosphorescence is just at the peak of 524 nm. The composites with 15 wt% SAO have the best fluorescence properties. The fluorescence decreased with further doping. Fluorescence decay curves with various amounts of SAO particles show a similar tendency as pure SAO particles; the speed of decrease in afterglow intensity was higher for the first 30 min. In addition, the detailed morphological scanning and study by scanning electron microscope (SEM) showed that the particles had good adhesion to the matrix. In conclusion, the concentration of SAO into the PLA matrix impacts the fluorescence and mechanical properties of a SAO/PLA composite material.

Studies on structural, optical and mechanical properties of MWCNTs and ZnO nanoparticles doped PVA nanocomposites

2015 ◽  
Vol 4 (5) ◽  
Author(s):  
Rithin Kumar N.B. ◽  
Vincent Crasta ◽  
B.M. Praveen ◽  
Mohan Kumar
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Polyvinyl Alcohol ◽  
Zno Nanoparticles ◽  
Precipitation Method ◽  
Solvent Casting ◽  
Casting Method ◽  
Multiwalled Carbon ◽  
Optical And Mechanical Properties

AbstractThis paper presents a novel class of multiwalled carbon nanotubes (MWCNTs) and zinc oxide (ZnO) doped polyvinyl alcohol (PVA) nanocomposites prepared using coagulation and solvent casting method. The dopant, ZnO nanoparticles, was prepared using precipitation method, and another dopant, MWCNTs, was treated with H

scholarly journals Effect of GNPs on the Piezoresistive, Electrical and Mechanical Properties of PHA and PLA Films

Fibers ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 86
Author(s):  
Gonzalo Mármol ◽  
Usha Kiran Sanivada ◽  
Raul Fangueiro
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Polyethylene Glycol ◽  
Polylactic Acid ◽  
Cellulose Nanocrystals ◽  
Graphene Nanoplatelets ◽  
Gauge Factor ◽  
Solvent Casting ◽  
Nanoparticle Distribution ◽  
Primary Focus

Sustainability has become the primary focus for researchers lately. Biopolymers such as polyhydroxyalkanoate (PHA) and polylactic acid (PLA) are biocompatible and biodegradable. Introducing piezoresistive response in the films produced by PLA and PHA by adding nanoparticles can be interesting. Hence, a study was performed to evaluate the mechanical, electrical and piezoresistive response of films made from PHA and PLA. The films were produced by solvent casting, and they were reinforced with graphene nanoplatelets (GNPs) at different nanoparticle concentrations (from 0.15 to 15 wt.%). Moreover, cellulose nanocrystals (CNC) as reinforcing elements and polyethylene glycol (PEG) as plasticizers were added. After the assessment of the nanoparticle distribution, the films were subjected to tests such as tensile, electrical conductivity and piezoresistive response. The dispersion was found to be good in PLA films and there exist some agglomerations in PHA films. The results suggested that the incorporation of GNPs enhanced the mechanical properties until 0.75 wt.% and they reduced thereon. The addition of 1% CNCs and 20% PEG in 15 wt.% GNPs’ tensile values deteriorated further. The PHA films showed better electrical conductivity compared to the PLA films for the same GNPs wt.%. Gauge factor (GF) values of 6.30 and 4.31 were obtained for PHA and PLA, respectively.

FORMULATION AND EVALUATION OF FAST DISSOLVING BUCCAL FILMS OF DIMENHYDRINATE

INDIAN DRUGS ◽  
2016 ◽  
Vol 53 (09) ◽  
pp. 34-41
Author(s):  
M. R Andrea ◽  
◽  
P. M. Dandagi ◽  
A. P. Gadad
Keyword(s):  
Mechanical Properties ◽  
Ex Vivo ◽  
Poloxamer 407 ◽  
Solvent Casting ◽  
Stability Studies ◽  
Casting Method ◽  
Disintegration Time ◽  
In Vitro Drug Release ◽  
Buccal Films

The aim of the present study was to develop a fast dissolving buccal film of dimenhydrinate with good mechanical properties and fast disintegration, producing an acceptable taste when placed in the mouth. The formulations were developed by solvent casting method by using HPMC E5 and HPMC E15 as film formers in different concentrations, propylene glycol as plasticizer and Poloxamer 407 as solubiliser. The resultant films were evaluated for various parameters. the films were found to be satisfactory for all the parameters. All formulations released more than 85% of the drug within 15 minutes. Formulation F7 (1% HPMC E5: 1% HPMC E15) was selected as the optimized formulation based upon the least disintegration time (24.3sec), optimum mechanical properties, percentage drug content (94.96%) and in vitro drug release (95.20%). The ex vivo release was found to be acceptable. Stability studies revealed that the formulation was stable on storage for two months.

Fabrication, Characterization and Adsorptive of Human Fibrinogen of HA/PHBV Nano Composite Films

2010 ◽  
Vol 160-162 ◽  
pp. 1325-1330
Author(s):  
Jun Yuan ◽  
Qi Xin Zheng ◽  
Jian Cheng
Keyword(s):  
Mechanical Properties ◽  
Composite Films ◽  
Nano Particles ◽  
Solvent Casting ◽  
Casting Method ◽  
Human Fibrinogen ◽  
Nano Composite ◽  
Nano Scale

In this investigation, nano-scale hydroxyapatite (HA) particles were incorporated in poly(hydroxybutyrate-co-valerate) (PHBV) polymer to fabricate composite films using solvent casting method. The morphologies, mechanical properties and adsorptive of human fibrinogen of the composite films were investigated. The HA nano-particles were dispersed in the films and well bonded to the polymer. The strength of films could be enhanced and its adsorptive of human fibrinogen could be also improved greatly by introducing HA nano-particles into the films. The results suggested these newly developed nano-HA/PHBV composite films might serve as an effective biomedicine material.

scholarly journals Formulation of Bilayer Benzydamine HCl Patch Targeted For Gingivitis

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Piyush Sanghai ◽  
Tanaji Nandgude ◽  
Sushilkumar Poddar
Keyword(s):  
Mechanical Properties ◽  
Petri Dish ◽  
The Novel ◽  
Solvent Casting ◽  
Moisture Uptake ◽  
Diffusion Study ◽  
Casting Method ◽  
Weight Variation ◽  
Folding Endurance ◽  
Selection Of

In the present study bilayer patch of benzydamine HCl was developed using solvent casting method. Different substrates were attempted like Petri dish, glass-and-ring, and teflon-and-ring for selection of the proper option to formulate patch that should give easily peelable film with adequate mechanical properties. HPMC E15 LV was used in different concentrations for obtaining proper viscosity of solution for pouring on to surface and ring, that it should not leak from ring. The second layer was optimized by using different polymer like eudragit RSPO, eudragit RSPO + EC, and eudragit NE30 D for efficient layer bonding. The minimum release from backing membrane was established by diffusion study as compared to from drug loaded layer. The optimized batches were evaluated for folding endurance, weight variation, thickness, drug content, drug release, tensile strength, layer separation, mucoadhesion, moisture uptake, and layer bonding. The novel gingival patch of benzydamine HCl developed would be beneficial in optimizing the therapy.

Effect of Corn Husk Content on Tensile Properties of Polylactic Acid Biocomposite Films

2015 ◽  
Vol 754-755 ◽  
pp. 66-70
Author(s):  
Mohd Akmalhakim bin Dato’ Hasnan ◽  
Salmah Husseinsyah ◽  
Lim Bee Ying ◽  
Mohd Faizal Abd Rahman
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Polylactic Acid ◽  
Modulus Of Elasticity ◽  
Solvent Casting ◽  
Casting Method ◽  
Elongation At Break ◽  
Study Materials ◽  
Corn Husk ◽  
Biocomposite Films

Nowadays bioplastics is the most recent study materials as the substitute for conventional plastics. The interest in bioplastics has lead to the production of polylactic acid (PLA) biocomposite films. In this study the PLA/Corn husk (CH) biocomposite films were prepared by using solvent casting method and the effect of CH content on the tensile properties were studied. The result found that increasing of CH content decreased the tensile strength and elongation at break of the biocomposites film. While, the modulus of elasticity increased with the increasing of CH content in the PLA matrix.

scholarly journals SIFAT TRANSPARANSI DAN PERMEABILITAS FILM BIONANOKOMPOSIT POLYLACTIC ACID DAN POLYCAPROLACTONE DENGAN PENAMBAHAN NANOCRYSTALLINE CELLULOSE SEBAGAI PENGISI [Transparency and permeability properties of Bionanocomposite Film of Polylactic Acid and Polycaprolactone, and Nanocrystalline Cellulose as a Filler]

2020 ◽  
Vol 25 (2) ◽  
pp. 81
Author(s):  
Eti Indarti ◽  
Arisa Sri Marlita ◽  
Zaidiyah Zaidiyah
Keyword(s):  
Water Vapor ◽  
Polylactic Acid ◽  
Water Vapor Permeability ◽  
Nanocrystalline Cellulose ◽  
Vapor Permeability ◽  
Solvent Casting ◽  
Casting Method ◽  
Empty Fruit Bunches ◽  
Bionanocomposite Films

Production of Polylactic acid (PLA)/Polycaprolactone (PCL) bionanocomposite films with various ratios was done by adding nanocrystalline celullose (NCC) from oil palm empty fruit bunches (OPEFB) as a filler. The aim of the research was to find out the effect of PLA/PCL ratio on film thickness, transparency of bionanocomposite films and water vapor permeability or WVP of the film bionanocomposite with addition of the 3% NCC.  The PLA/PCL ratio are 1.0/0.0; 0.8/0.2; 0.6/0.4; 0.5/0.5; 0.4/0.6; 0.2/0.8; and 0.0/1.0, prepared with solvent casting method. Characterization of PLA/PCL bionanocomposites film performed was thickness, transparency test and water vapor permeability (WVP) test. The thickness of bionanocomposites film produced were around are about 0.036-0.053 mm, results show that the lower PLA/PCL ratio the thicker film obtained. The highest value of film transparency was obtained at a ratio of 1.0 / 0.0 (81.4% at a wavelength of 550 nm), the smaller the PLA / PCL ratio, the lower the value of transparency. The WVP value of PLA/PCL bionanocomposite films gives a lower value than the WVP value of pure PLA film and pure PCL film. The best WVP was obtained at a PLA/PCL ratio of 0.8/0.2 which was 1.49x10-16kg.m/(m2.s.Pa).  

scholarly journals Synthesis of Nano Conducting Polymer Based Polyaniline and it's Composite: Mechanical Properties, Conductivity and Thermal Studies

2010 ◽  
Vol 7 (1) ◽  
pp. 105-110 ◽  
Author(s):  
M. Banimahd Keivani ◽  
K. Zare ◽  
M. Aghaie ◽  
H. Aghaie ◽  
M. Monajjemi
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Thermal Treatment ◽  
Polymer Composite ◽  
Thermal Studies ◽  
Spectrophotometric Analysis ◽  
Molar Ratio ◽  
Solvent Casting ◽  
Casting Method ◽  
Preparation Conditions

Polyaniline (PAn) was prepared chemically in the presence of bronsted acid from aqueous solutions. Polyaniline- nylon 6 composite (termed as PAn/Ny6) prepared via solvent casting method. The preparation conditions were optimized with regard to the mechanical properties of the polymer composite. It was found that the molar ratio of PAn to nylon have the greatest effect in determining the mechanical properties of polymer composite. Electrical conductivity was measured using standard method of four point probe. Spectrophotometric analysis (UV-Vis) was used for investigation of the effect of thermal treatment on polyaniline and it’s composite.

Fabrication of Activated Carbon Filled Epoxidized Natural Rubber Composite Using Solvent Casting Method

2015 ◽  
Vol 761 ◽  
pp. 426-430
Author(s):  
Mohd Asyadi Azam ◽  
Aisyah Hassan ◽  
Noraiham Mohamad ◽  
Elyas Talib ◽  
Nor Syafira Abdul Manaf ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Activated Carbon ◽  
Natural Rubber ◽  
Polymer Composites ◽  
Epoxidized Natural Rubber ◽  
Solvent Casting ◽  
Casting Method ◽  
Rubber Composite

Despite the rapid increase in the utilization of reinforced nanomaterials composites, micromaterials may also have the potential to be utilized as filler in polymer composites. In this study, the activated carbon (AC) filled epoxidized natural rubber (ENR) composite was fabricated using the solvent casting method. AC was used as the filler at different filler addition in range from 0 to 7 parts per hundred rubbers (phr). The intention was to investigate the effect of AC filled ENR on mechanical properties and interaction between AC and ENR matrix. Overall, the result shows high improvement in mechanical properties. At 7 phr, the tensile strength was 7.0 MPa compared to 2.6 MPa for 0 phr, which indicates the increase by almost 2 times. The elongation also increases for all phr, which indicates the good filler effect.

Sign in / Sign up

Export Citation Format

Share Document