Investigation on the mechanical and ageing properties of acrylic rubber reinforced halloysite nanotubes/carbon black hybrid composites

In the present research, acrylic rubber (ACM) composites containing Carbon black (CB) of 70 phr alone and five different ACM hybrid nanocomposites containing a fixed content of CB (60 phr) and varied content of halloysite nanotubes (HNT) (2, 4, 6, 8 and 10 phr) were prepared by melt-blending on a open twin roll mill. The prepared composites were examined for their microstructure, physical and mechanical properties, hot air and hot oil ageing resistance. Studies revealed that addition of HNT in CB filled ACM composites resulted in superior mechanical properties, improved swelling resistance and augmented impedance to oxidation and hot oil compared to ACM containing CB alone. Further ACM composites with 6 phr of HNT demonstrated an enhancement of 31.49%, 16.15%, 39.65%, 6.39% and 28.06% respectively in stress at break, % elongation at rupture, modulus at 100% elongation, resistance to crack propagation and solvent uptake. Further the same sample exhibited retention of stress at break and elongation at rupture of 99% and 92%, 98% and 89%, 94% and 96% respectively in hot air, in IRM 901 oil and in IRM 903 oil respectively. Studies on the microstructure revealed the formation of HNT-ACM-CB intercalated structures. Fourier transform infrared spectroscopy studies confirmed the establishment of bonding of hydrogen amidst the tubular nanofiller and the ACM rubber. Field emission scanning electron microscopy studies divulged the intercalation of tubular filler by ACM rubber, black filler and curing constituents and development of local HNT-CB network. These studies prove that partial replacement of traditional CB filler with tubular HNT is a promising approach to produce ACM composites with superior mechanical, thermo-oxidative ageing and hot oil ageing properties.[Formula: see text]

Download Full-text

Mechanical and rheological properties of partial replacement of carbon black by treated ultrafine calcium carbonate in natural rubber compounds

10.21203/rs.3.rs-226742/v1 ◽

2021 ◽

Author(s):

Vitor Peixoto Klienchen de Maria ◽

Fábio Paiva ◽

Flávio Camargo Cabrera ◽

Carlos Toshiyuki Hiranobe ◽

Gabriel Deltrejo Ribeiro ◽

...

Keyword(s):

Mechanical Properties ◽

Calcium Carbonate ◽

Carbon Black ◽

Natural Rubber ◽

Hybrid Composites ◽

Partial Substitution ◽

Partial Replacement ◽

Rubber Matrix ◽

High Concentration ◽

Carbonate Carbon

Abstract The present research aimed to develop natural rubber (NR) hybrid composites reinforced with treated ultrafine calcium carbonate/carbon black (CC/CB). The influence of CC/CB with various filler ratios (50/0, 40/10, 30/20, 20/30, 10/40 and 0/50) on mechanical properties and cure characteristics of the vulcanizates was investigated and their reinforcing efficiency was compared aiming to achieve the best ratio for CB partial substitution as compared to composites with CC and CB incorporated separately. The CC30/CB20 composites reached around to 17 MPa similar strength at break response compared to CC0/CB50 (16.83 MPa). Elongation at break increased 48% in relation to CC0/CB50. Hardness maintain similar values compare to high concentration of CB composites. Crosslink density results revealed similar chain number in rubber matrix representing better interaction between CC/CB. Scanning electron microscopy studies also reveal a good filler dispersion between filler particles and matrix. The results shown that the new material can be an alternative filler for partial substitution of CB conserving mechanical properties.

Download Full-text

Using of alternative fillers based on the waste and its effect on the rubber properties

MATEC Web of Conferences ◽

10.1051/matecconf/201925404010 ◽

2019 ◽

Vol 254 ◽

pp. 04010

Author(s):

Mariana Pajtášová ◽

Darina Ondrušová ◽

Róbert Janík ◽

Zuzana Mičicová ◽

Beáta Pecušová ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Black ◽

Physical And Mechanical Properties ◽

Dynamic Mechanical Properties ◽

Partial Replacement ◽

Dynamic Mechanical ◽

Rubber Compounds

The presented paper deals with a study of selected rubber compounds as well as their vulcanizates with partially replaced commonly used filler by adding selected alternative fillers. Alternative fillers were mixed into rubber compounds as partial replacement of commonly used filler – carbon black. As an alternative partial replacement of common filler, we have chosen fine fractions of the waste of thermoplastics. The differences of rubber compounds were based on the amount of used alternative filler. We determined vulcanization characteristics of prepared tread compounds and physical and mechanical properties and dynamic mechanical properties of their vulcanizates. From the measured results it can be concluded that studied waste can be used in the function of filler into rubber, as partial replacement of commonly used filler.

Download Full-text

INFLUENCE OF HALLOYSITE NANOTUBES ON THE PHYSICAL AND MECHANICAL PROPERTIES OF EPOXY COMPOSITES

Building and reconstruction ◽

10.33979/2073-7416-2020-89-3-120-130 ◽

2020 ◽

Vol 89 (3) ◽

pp. 120-130

Author(s):

E.V. TKACH ◽

◽

M. I. BICHAEV ◽

Keyword(s):

Mechanical Properties ◽

Physical And Mechanical Properties ◽

Halloysite Nanotubes ◽

Epoxy Composites

Download Full-text

Electromagnetic Interference Shielding and Physical-Mechanical Characteristics of Rubber Composites Filled with Manganese-Zinc Ferrite and Carbon Black

Polymers ◽

10.3390/polym13040616 ◽

2021 ◽

Vol 13 (4) ◽

pp. 616

Author(s):

Ján Kruželák ◽

Andrea Kvasničáková ◽

Klaudia Hložeková ◽

Rastislav Dosoudil ◽

Marek Gořalík ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Black ◽

Zinc Ferrite ◽

Mechanical Characteristics ◽

Hybrid Composites ◽

Rubber Matrix ◽

Butadiene Rubber ◽

Frequency Range ◽

Manganese Zinc ◽

Manganese Zinc Ferrite

In the present work, composite materials were prepared by incorporation of manganese-zinc ferrite, carbon black and combination of ferrite and carbon black into acrylonitrile-butadiene rubber (NBR). For cross-linking of composites, standard sulfur-based curing system was applied. The main goal was to investigate the influence of the fillers on the physical-mechanical properties of composites. Then, the electromagnetic absorption shielding ability was investigated in the frequency range 1 MHz–3 GHz. The results revealed that composites filled with ferrite provide sufficient absorption shielding performance in the tested frequency range. On the other hand, ferrite behaves as an inactive filler and deteriorates the physical-mechanical characteristics of composites. Carbon black reinforces the rubber matrix and contributes to the improvement of physical-mechanical properties. However, composites filled with carbon black are not able to absorb electromagnetic radiation in the given frequency range. Finally, the combination of carbon black and ferrite resulted in the modification of both physical-mechanical characteristics and absorption shielding ability of hybrid composites.

Download Full-text

Physical and Mechanical Properties of Cement Paste Were Used Partially with Fly Ash and Kaolin Waste

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.866.199 ◽

2017 ◽

Vol 866 ◽

pp. 199-203

Author(s):

Chidchanok Chainej ◽

Suparut Narksitipan ◽

Nittaya Jaitanong

Keyword(s):

Mechanical Properties ◽

Fly Ash ◽

Room Temperature ◽

Physical And Mechanical Properties ◽

Partial Replacement ◽

X Ray Diffraction ◽

X Ray ◽

Lime Water ◽

Diffraction Patterns ◽

Iron Mold

The aims of this research were study the microstructures and mechanical properties for partial replacement of cement with Fly ash (FA) and kaolin waste (KW). Ordinary Portland cement were partially replaced with FA and KW in the range of 25-35% and 10-25% by weight of cement powder. The kaolin waste was ground for 180 minutes before using. The specimen was packing into an iron mold which sample size of 5×5×5 cm3. Then, the specimens were kept at room temperature for 24 hours and were moist cured in the incubation lime water bath at age of 3 days. After that the specimens were dry cured with plastic wrap at age of 3, 7, 14 and 28 days. After that the compounds were examined by x-ray diffraction patterns (XRD) and the microstructures were examined by scanning electron microscopy (SEM). The compressive strength was then investigated.

Download Full-text

Relationship among mechanical properties, heat ageing resistance, cut growth behaviour and morphology in natural rubber: Partial replacement of clay with various types of carbon black at similar hardness level

Polymer Testing ◽

10.1016/j.polymertesting.2008.12.010 ◽

2009 ◽

Vol 28 (3) ◽

pp. 270-276 ◽

Cited By ~ 53

Author(s):

N. Rattanasom ◽

S. Prasertsri

Keyword(s):

Mechanical Properties ◽

Carbon Black ◽

Natural Rubber ◽

Partial Replacement ◽

Growth Behaviour ◽

Hardness Level

Download Full-text

Physical and Mechanical Properties of Polypropylene-Wood-Carbon Fiber Hybrid Composites

BioResources ◽

10.15376/biores.11.1.1393-1406 ◽

2015 ◽

Vol 11 (1) ◽

Cited By ~ 6

Author(s):

Djamila Kada ◽

Sébastien Migneault ◽

Ghezalla Tabak ◽

Ahmed Koubaa

Keyword(s):

Mechanical Properties ◽

Carbon Fiber ◽

Hybrid Composites ◽

Physical And Mechanical Properties

Download Full-text

The Behavior of FRA Concrete with High Replacement Ratio

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.760.204 ◽

2018 ◽

Vol 760 ◽

pp. 204-209 ◽

Cited By ~ 1

Author(s):

Magdaléna Šefflová

Keyword(s):

Mechanical Properties ◽

Physical And Mechanical Properties ◽

Absorption Capacity ◽

Recycled Aggregate ◽

Partial Replacement ◽

Hardened Concrete ◽

Replacement Ratio ◽

Natural Sand ◽

Concrete Mixtures

This study deals with determination of the properties of the fine recycled aggregate (FRA) concrete with partial replacement of natural sand in concrete mixtures. The FRA was obtained from concrete waste and crushed on fraction 0 – 4 mm by laboratory jaw crusher. The geometrical and physical properties of natural sand and the FRA were tested. The main goal of this study is evaluation of the basic physical and mechanical properties of the concrete with partial natural sand replacement by the FRA such as workability, water absorption capacity, compressive strength and flexural strength. A total four concrete mixtures were prepared. The first concrete mixture was prepared only with natural sand, did not include the FRA. In other concrete mixtures, natural sand was replaced by the FRA in various replacement ratios (40 %, 50 %, and 60 %). All concrete mixtures were designated with the same parameters for clear comparison. The workability of fresh concrete mixtures and physical and mechanical properties of hardened concrete were tested.

Download Full-text

Effect of benzoyl treatment on the performance of sugar palm/kenaf fiber-reinforced polypropylene hybrid composites

Textile Research Journal ◽

10.1177/00405175211043248 ◽

2021 ◽

pp. 004051752110432

Author(s):

S Mohd Izwan ◽

SM Sapuan ◽

MYM Zuhri ◽

AR Muhamed

Keyword(s):

Mechanical Properties ◽

Mechanical Characteristics ◽

Hybrid Composites ◽

Physical And Mechanical Properties ◽

Morphological Properties ◽

Fiber Reinforced ◽

Kenaf Fiber ◽

A Value ◽

Hydrophobic Behavior ◽

Sugar Palm Fiber

The main purpose of this work is to investigate the effect of benzoyl treatment on the performance of sugar palm/kenaf fiber-reinforced polypropylene hybrid composites. Water absorption tests were carried out to confirm the effect of benzoylation treatment toward fabricating a more hydrophobic behavior of the hybrid composites. Both treated and untreated composites that have 10 wt.% of fiber loading with three different fiber ratios between sugar palm and kenaf (7:3, 5:5, 3:7) were analyzed. Physical and mechanical properties such as tensile, flexural, and impact strength were determined from this study. Morphological properties were obtained using scanning electron microscopy (SEM). It was found that the tensile strength of sugar palm/kenaf-reinforced polypropylene hybrid composites was improved with the treatment of benzoyl with a value of 19.41 MPa. In addition, hybrid composite with treated sugar palm and kenaf fiber T-SP3K7 recorded the highest impact and flexural strength of 19.4 MPa and 18.4 MPa, respectively. In addition, SEM demonstrated that surface treatment enhanced the mechanical properties of the hybrid composites. Overall, it can be suggested that benzoyl-treated composites with a higher volume of kenaf fiber than sugar palm fiber will improve the mechanical characteristics of the hybrid composites.

Download Full-text