Effect of modified aerosil on the formation process, viscoelastic and mechanical properties of polymer matrices based on PMMA/PU IPNs

2019 ◽  
Vol 41 (4) ◽  
pp. 230-239
Author(s):  
L.F. Kosyanchuk ◽  
◽  
O.I. Antonenko ◽  
T.D. Ignatova ◽  
N.V. Babkina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Formation Process ◽  
Polymer Matrices

Investigation on the Elemental Chip Formation Process in Hard-to-Machine Material Cutting

2014 ◽  
Vol 682 ◽  
pp. 504-509 ◽  
Author(s):  
A.A. Lasukov ◽  
P.A. Chazov ◽  
А.V. Barsuk
Keyword(s):  
Mechanical Properties ◽  
Formation Process ◽  
Chip Formation ◽  
Physical And Mechanical Properties ◽  
Cutting Process ◽  
Machine Material ◽  
Continuous Chip ◽  
Material Cutting

The mechanism of discontinuous chip formation has been studied less than the mechanism of continuous chip formation. However, when most modern materials having specific physical and mechanical properties are subject to machining, such processes are featured by discontinuous chip formation. The paper describes the basic dependencies of discontinuous chip parameters on machining modes. This is a trial undertaken to introduce an explanation of how the basic factors of the cutting process influence over parameters of chip formation.

Revealing non-crystalline polymer superstructures within electrospun fibers through solvent-induced phase rearrangements

Nanoscale ◽  
2019 ◽  
Vol 11 (36) ◽  
pp. 16788-16800 ◽  
Author(s):  
Alexandre Morel ◽  
Sophie C. Oberle ◽  
Sebastian Ulrich ◽  
Gökçe Yazgan ◽  
Fabrizio Spano ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Formation Process ◽  
Electrospun Nanofibers ◽  
Crystalline Polymer ◽  
Electrospun Fibers ◽  
Detailed Understanding ◽  
Nanoscale Level

Visualizing the inner architecture of electrospun nanofibers at a nanoscale level provides a detailed understanding of their formation process and the resulting mechanical properties.

scholarly journals Dynamic cross-linking of an alginate–acrylamide tough hydrogel system: time-resolved in situ mapping of gel self-assembly

RSC Advances ◽  
2021 ◽  
Vol 11 (18) ◽  
pp. 10710-10726
Author(s):  
Akanksha Pragya ◽  
Suhas Mutalik ◽  
Muhammad Waseem Younas ◽  
Siu-Kwong Pang ◽  
Pui-Kin So ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Formation Process ◽  
Self Assembly ◽  
Cross Linking ◽  
Time Resolved ◽  
System Time ◽  
Dynamic Formation ◽  
Hydrogel System

In situ, time-resolved characterisation of an alginate–acrylamide tough hydrogel dynamic formation process indicate routes to intervention and modification of chemo-physico-mechanical properties.

Investigation of the mechanical properties of polymer matrices based on adhesive binders

2019 ◽  
pp. 160-169
Author(s):  
D. A. Melnikov ◽  
A. P. Petrova ◽  
L. A. Dementieva ◽  
A. V. Ilichev
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Polymer Matrix ◽  
Tensile Modulus ◽  
Polymer Matrices ◽  
Basic Approach ◽  
Curing Of Polymer

The paper considers methods for manufacturing polymer-matrix samples for the determination of mechanical properties outlining the basic approach to the development of modes for pouring and curing of polymer blocks. Samples were made of cured adhesive binders VSK-50, VSK-14-2m, VSK-14-2mR, VSK-14-2mRm, and tests were carried out to determine the following characteristics: tensile and flexural strength, elongation, tensile modulus when stretching and bending.

A Review on Mechanical Properties of Natural Fibre Reinforced PLA Composites

2021 ◽  
Vol 15 ◽  
Author(s):  
Agnivesh Kumar Sinha ◽  
Kasi Raja Rao ◽  
Vinay Kumar Soni ◽  
Rituraj Chandrakar ◽  
Hemant Kumar Sharma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
Biodegradable Polymer ◽  
Weight Ratio ◽  
Natural Fibre ◽  
Polymer Matrices ◽  
Poly Lactic Acid ◽  
Butylene Succinate ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer

Presently, scientists and researchers are in an endless quest to develop green, recyclable, and eco-friendly materials. Natural fibre reinforced polymer composites became popular among materialists due to their lightweight, high strength-to-weight ratio, and biodegradability. However, all-natural fibre reinforced polymer composites are not biodegradable. Polymer matrices like poly-lactic acid (PLA) and poly-butylene succinate (PBS) are biodegradable, whereas epoxy, polypropylene, and polystyrene are non-biodegradable polymer matrices. Besides biodegradability, PLA has been known for its excellent physical and mechanical properties. This review emphasises the mechanical properties (tensile, flexural, and impact strengths) of natural fibrereinforced PLA composites. Factors affecting the mechanical properties of PLA composites are also discussed. It also unveils research gaps from the previous literature, which shows that limited studies are reported based on modeling and prediction of mechanical properties of hybrid PLA composites reinforcing natural fibres like abaca, aloe vera, and bamboo fibres.

Effects of Halloysite Nanotubes on the Mechanical Properties of Polysaccharide Films

2017 ◽  
Vol 889 ◽  
pp. 75-78
Author(s):  
Izzati Fatimah Wahab ◽  
Saiful Izwan Abd Razak ◽  
Foong Choi Yee
Keyword(s):  
Mechanical Properties ◽  
Halloysite Nanotubes ◽  
Polymer Matrices ◽  
Natural Polymers ◽  
Reinforcing Fillers

Halloysite nanotubes (HNT) are good reinforcing fillers because of many traits that allow high processability and versatile active agents loading. Incorporation of HNT into polymer matrices, especially in natural polymers, is still yet to be explored. This paper reports on the effect of inclusion of nanotube clay towards the mechanical properties of polysaccharide films.

scholarly journals Effect of Fiber Content and Silane Treatment on the Mechanical Properties of Recycled Acrylonitrile-Butadiene-Styrene Fiber Composites

Chemistry ◽  
2021 ◽  
Vol 3 (4) ◽  
pp. 1258-1270
Author(s):  
Vardaan Chauhan ◽  
Timo Kärki ◽  
Juha Varis
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Interfacial Adhesion ◽  
Natural Fiber ◽  
Acrylonitrile Butadiene Styrene ◽  
Fiber Composites ◽  
Fiber Content ◽  
Polymer Matrices ◽  
Silane Treatment ◽  
Butadiene Styrene

The aim of the present study was to investigate the effects of fiber content and then silane treatment on the mechanical performance of the natural fiber composites of recycled acrylonitrile–butadiene–styrene (ABS) provided by the automotive sector. Wood and palmyra fibers were used as fillers in 10% and 20% fiber content composites. The fibers were treated with N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane to improve the interfacial adhesion between fibers and polymer matrices. The mechanical properties of the composites were determined by tensile and impact tests. Morphological analysis was later performed using a scanning electron microscope (SEM). According to the experiment results, the tensile and impact strength of both wood and palmyra fibers increase after silane treatment. However, for the low-wood-fiber-content composite, the tensile and impact strength decrease after silane treatment due to the presence of an excess amount of silane relative to fiber content. The addition of wood and palmyra fibers significantly improved the tensile modulus of composite material and further increases slightly after silane treatment. Finally, SEM analysis shows a homogenous mix of fibers and polymer matrices with fewer voids after silane treatment, thereby improving interfacial adhesion.

scholarly journals Physicomechanical Properties of Epoxyurethane Biocomposites Strengthened with Hemp Wood Core

2021 ◽  
Vol 9 (1) ◽  
pp. 9-18
Author(s):  
Tetian Samoilenko ◽  
Larysa Yashchenko ◽  
Natalia Yarova ◽  
Oleh Babich ◽  
Oleksandr Brovko
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flexural Strength ◽  
Soybean Oil ◽  
Epoxy Resin ◽  
Physicomechanical Properties ◽  
Polymer Matrices ◽  
Epoxidized Soybean Oil ◽  
Maximum Content ◽  
Properties Of Composites

Hemp wood core (HWC) filled Si-containing epoxyurethane biocomposites, in which diane epoxy resin was replaced with epoxidized soybean oil (ESO), were obtained. It was shown that the tensile strength of ESO-containing polymer was higher, and the flexural strength was lower than those of original polymer. HWC was especially effective strengthening filler for modified epoxyurethanes, because in that case mechanical properties of composites were higher than those of unfilled polymer matrices. Particularly, flexural and tensile strength of unfilled epoxyurethane with maximum content of ESO were 8.1 and 6.8 MPa respectively, while in corresponding composite they reached 17.3 and 15.7 MPa.

Sign in / Sign up

Export Citation Format

Share Document