Search
10 articles for “acid and alkali resistance”
-
Acid and Alkali Resistance of Polylactic Acid Incorporated Polyfurfuryl Alcohol Bioplastics
Abstract: PLA (0.5 to 3%) was successfully dissolved in furfuryl alcohol (FA). Acid number of neat polylactic acid (PLA) and PLA incorporated in FA were determined. Neat PLA and PLA incorporated polyfurfuryl alcohol based bioplastics were successfully fabricated with p-toulene sulfonic acid as an acid catalyst by casting method in silicon mould. The fabricated bioplastics are black in colour. The as-fabricated bioplastics were tested for resistance against acid and alkali. Additionally, …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 8, Issue 2, 2017 · pp. 1–4 Read article
-
PCR identification of blaTEM gene mediated for ESBL drug resistance in Salmonella typhi
Abstract: Objective: The aim of the present study to identify the presence of R-plasmid and detect the blaTEM gene encodes for ampicillin resistance.Materials and Methods: Salmonella typhi organisms isolated from widal positive blood samples and screened by standard screening methods. Antimicrobial susceptibility test by Kirby-Bauer disc diffusion method and MIC by agar dilution method for Ampicillin performed as per Clinical Laboratory Standard Institute (CLSI) guidelines. ESBL detection by phenotypic confirmatory test, …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 6, Issue 2, 2016 · pp. 1–6 Read article
-
Characterization of Nano-Clay Reinforced Polymer Composites: Enhancing Performance for Extreme Applications
Abstract: This study investigates the mechanical, thermal, water absorption, and chemical resistance properties of nano-clay-reinforced polymer composites and polymer concrete. The incorporation of 1-5 wt% nano-clay resulted in a significant enhancement across all properties. Mechanical testing revealed a 42.86% increase in tensile strength (35 MPa to 50 MPa), 40% improvement in flexural strength (50 MPa to 70 MPa), and 46.67% rise in compressive strength (75 MPa to 110 MPa), attributed to …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 105–114 Read article
-
Study the Impact of Corrosive Pollutants on Building Materials Corrosion
Abstract: Reinforced concrete structures (RCS) may be made more resistant to corrosion by using fiber reinforced polymers (FRP). One of the primary concerns with reinforced concrete constructions is corrosion. It causes disintegration in building material components by interactions with salts, acids, and alkalis. Both within and outside of reinforced properties, pollutants and effluents accelerate disbanding. When bio-waste and building materials come into contact, microorganisms and macro organisms, grow and emit acid …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 2, Issue 2, 2024 · pp. 20–29 Read article
-
Exploration of Diverse Epoxy-Based Surface Coating Methods for Enhancing Anticorrosion Characteristics
Abstract: Epoxy-based polymers, commonly referred to as polyepoxides, constitute one of the most versatile and widely adopted categories of polymeric materials due to their exceptional structural, mechanical, and chemical characteristics. Their unique macromolecular framework enables strong interfacial bonding, high mechanical stability, and superior resistance to environmental and chemical degradation, positioning them as advanced alternatives to many traditional organic corrosion inhibitors that often fail under prolonged exposure to aggressive conditions When polyepoxides …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 167–177 Read article
-
Multifunctional Corn Husk Fibre/PLA–PBAT Hybrid Composites with Carbon-Black Percolation for Structural Self-Sensing Applications
Abstract: This study developed multifunctional polymer composites based on a PLA/PBAT (Polylactic Acid/ Poly(butylene adipate-co-terephthalate)) thermoplastic matrix reinforced with 20 wt.% corn husk fibre (CHF) and functionalized with conductive carbon black (CB) for smart consumer-electronics casings. Alkali treatment modified the lignocellulosic fibre surface, improving fibre–matrix interfacial adhesion and stress transfer within the polymer composite. Thermal characterization showed that the PLA cold-crystallization temperature decreased from 112.5 °C for the unfilled blend to …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
-
Experimental Investigation on Strength and Durability Properties of Slag Based Alkali Activated Concrete Incorporating Fly Ash
Abstract: To minimize carbon emissions during cement production and to resolve landfill issues arising from industrial waste, the adoption of alkali-activated concrete (AAC) incorporating various by-products from industry has become increasingly popular as environmentally friendly option to conventional concrete in the construction sector. This study focused on strength and durability of AAC by utilizing waste industrial by-products such as ground granulated blast furnace slag (GGBS) and fly ash (FA) at ambient …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 393–400 Read article
-
Silent Submarine Propulsion with High-Efficiency Magnetohydrodynamic Drive
Abstract: Magnetohydrodynamic (MHD) propulsion is an exciting technology that can be easily incorporated into a new submarine or existing one can also be upgraded by replacing the propeller drive with a MHD drive without difficulty. This new technology would provide many advantages like a stealth operation, no cavitation, greater maneuverability, increased payload, addition of an emergency drive system, etc. The design of an MHD motor is very simple and consists of …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 1, 2025 · pp. 41–55 Read article
-
Utilizing Chemical Machining Methods in the Metalworking Sector
Abstract: Chemical machining is a kind of material removal technique used to produce desired shapes and dimensions by selectively or completely removing material through carefully regulated chemical attack using etchant solutions, which are solutions of acids or alkalis. One type of chemical machining is chemical milling, also known as contour machining, etching, or chemiluminescence. The aerospace industry uses chemical milling to remove thin layers of material from extruded parts for aircraft …
Published in International Journal of Manufacturing and Production Engineering · Vol. 2, Issue 1, 2024 · pp. 17–23 Read article
-
Corrosion Characterization of Silicon Carbide and Fly Ash Particulates Dispersion Strengthened Aluminium 5083 Composites
Abstract: Corrosion behavior of aluminium metal matrix composites is a major study aimed at evaluating the potential of using the materials for aerospace components. Aluminium 5083 is a specific class of alloy which is known for its corrosion resistance in extreme environments and is used in aerospace components. However, the studies on effect of reinforcements such as silicon carbide and fly ash on corrosion behavior of aluminium 5083 alloy has not …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 2, 2017 · pp. 9–21 Read article