Rabeh Elleithy

🔥 The Chemistry of Fireworks 🎇 💥 Chemical composition: Identifying key components like metal salts (for color) and oxidizers (for combustion) in fireworks formulations. 🎆 Color creation: Explaining how different elements produce specific hues when ignited, from strontium (red) to copper (blue). 🎇 Special effects: Introducing additives like aluminum powder for glittering effects and charcoal for trailing sparks. 🔬 Pyrotechnic science: Understanding the physics of combustion and explosion kinetics behind dazzling fireworks displays. 🌐 Cultural significance: Tracing the historical and cultural roots of fireworks traditions around the world. 🎉 Safety considerations: Promoting responsible handling and display practices to prevent accidents and injuries during fireworks shows. 📊 Environmental impact: Addressing concerns about air and noise pollution resulting from fireworks displays and exploring eco-friendly alternatives. Join me on LinkedIn as we delve deeper into the captivating world of fireworks and explore their chemistry together! 🔍🎆 Let's connect and share our insights on the science behind these spectacular displays. What's your favorite fireworks color, and why? Share your thoughts in the comments below! #FireworksChemistry #Pyrotechnics #LinkedInConnect 🌟

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The physical properties of plastics are nonlinear, so analysis time is short if only the linear region is analyzed, but it takes a long time if the analysis is done up to the nonlinear region.

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#MTCiting in #OPRD. A depolymerization method to regenerate isocyanates from thermoplastic and thermoset polyurethanes is demonstrated that uses an organoboron Lewis acid under mild conditions. New PU is then resynthesized from the recovered isocyanates. https://okt.to/tYUuV7

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#MTCiting in #OPRD. A depolymerization method to regenerate isocyanates from thermoplastic and thermoset polyurethanes is demonstrated that uses an organoboron Lewis acid under mild conditions. New PU is then resynthesized from the recovered isocyanates. https://okt.to/KqYG8d

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The #surface_tension of a #polymer_film significantly impacts its performance across various applications. Here are the key ways it influences functionality: 👉1. #Adhesion High surface tension: Promotes better adhesion to high-energy substrates (e.g., metals or ceramics) by creating stronger intermolecular forces at the interface. Low surface tension: Makes adhesion to surfaces more challenging, as the mismatch between the polymer and substrate energy can prevent effective bonding. 👉2. #Wettability Surface tension determines how liquids (e.g., water, oils) spread or bead on the polymer surface. High surface tension: Results in poor wettability (hydrophobic surfaces), useful in water-repellent or self-cleaning coatings. Low surface tension: Enhances wettability, making the surface more hydrophilic and improving interactions with aqueous systems. 👉3. #Barrier_Properties Surface tension can impact the interaction of the polymer film with gases, solvents, or moisture. Low surface tension: Reduces the likelihood of liquid or gas adsorption, enhancing barrier properties. High surface tension: Can increase permeability in some cases, depending on interactions with external substances. 👉4. #Fouling and #Contamination_Resistance High surface tension: Encourages interaction with environmental contaminants, leading to fouling or degradation. Low surface tension: Resists fouling, particularly in biomedical or underwater applications, where reducing adhesion of unwanted particles is crucial. 👉5. #Mechanical_Properties High surface tension often correlates with strong cohesive forces, contributing to improved mechanical stability, scratch resistance, and durability of the film. Low surface tension films may exhibit higher flexibility and softness but can be more prone to wear or abrasion. 👉6. #Optical_Properties Surface tension affects the smoothness and uniformity of the polymer film. High surface tension: May create surface irregularities, affecting reflectivity and brilliance. Low surface tension: Promotes smoother films, enhancing optical clarity and uniform light reflection. 👉7. #Printability and #Coating_Compatibility Surface tension is critical for processes like ink adhesion or overcoating. High surface tension: Requires inks or coatings with matched surface energy for effective application. Low surface tension: Facilitates better spreading of inks or paints, improving print quality and finish. 👉8. #Thermal_Stability Surface tension governs how the polymer interacts with its surroundings during heating or cooling. A mismatch in tension can lead to issues like film shrinkage or cracking during thermal cycling. ... ... ... ... ... ... ... ... ... ✍️In #summary: surface tension shapes the performance of polymer films by regulating their interactions with substrates, liquids, gases, and environmental factors. Optimizing surface tension is essential for tailoring the film's behavior to specific applications.

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Made by compounding piezoelectric particles in silicone rubber, this ultra-stretchable kirigami material is designed to accurately sense in- and out-of-plane strains. A recent study reports ultra-stretchable kirigami piezo-metamaterials (KPM) for sensing coupled large deformations caused by in- and out-of-plane displacements using the lead zirconate titanate (PZT) and barium titanate (BaTiO3) composite films. The KPM are fabricated by uniformly compounding and polarizing piezoelectric particles (i.e., PZT and BaTiO3) in silicone rubber and structured by cutting the piezoelectric rubbery films into ligaments. The PZT KPM sensors are integrated into wireless sensing systems for the detection of vehicle tyre bulges, and the non-toxic BaTiO3 KPM are applied for human posture monitoring. The reported kirigami piezo-metamaterials open an exciting venue for the control and manipulation of mechanically functional metamaterials for active sensing under complex deformation scenarios in many applications. Credit: Video: Advanced Science News Paper: Hong, Luqin, et al. "Ultra‐Stretchable Kirigami Piezo‐Metamaterials for Sensing Coupled Large Deformations." Advanced Science 11.5 (2024): 2303674.

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Graphene-based polymer composites have attracted attention because of their physicochemical properties. In this article at FinishingAndCoating.com at https://lnkd.in/gbhUrbm5 , the effect of graphene nanosheet additives on the adhesion, anti-wear performance, and corrosion resistance of epoxy powder coatings was investigated. The results showed that the coating was an effective strategy to enhance the protection functional in rigorous mechanical-corrosion coupled environments. Photo thanks to ABQ PowderCoating. #finishingandcoating #finishing #coating #powdercoat

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Metals which are known to be ductile at ambient temperature normally tend to become brittle at low temperatures below the ductile to brittle transition temperature whereas ceramics which are normally brittle at room temperature start to become slightly ductile at extremely high temperatures due to ease of movement of dislocations.

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𝗠𝗮𝗴𝗻𝗼𝗺𝗲𝗿'𝘀 𝗠𝗮𝗴𝗻𝗲𝘁𝗶𝘇𝗮𝗯𝗹𝗲 𝗖𝗼𝗮𝘁𝗶𝗻𝗴𝘀 𝗔𝗱𝗵𝗲𝗿𝗲 𝘁𝗼 𝗨𝗦 𝗣𝗹𝗮𝘀𝘁𝗶𝗰𝘀 𝗣𝗮𝗰𝘁 𝗚𝘂𝗶𝗱𝗲𝗹𝗶𝗻𝗲𝘀! The US Plastics Pact, in their newly updated Unnecessary and Problematic Materials list, now recognizes Magmark SS coatings as a tool for addressing “unnecessary and problematic materials.” The “unnecessary and problematic materials” list is meant to be an evolving document and items may be added or removed from the list over time as technologies change. Whereas the previous version of the list identified PETG as problematic, the newly released version now defers to the Association of Plastic Recyclers (APR). If a label construction has APR recognition, meaning that its design is compatible with the North American recycling system, it is not considered part of the unnecessary and problematic materials list. Magnomer’s Magmark SS coatings have APR recognition for use on PETG, and therefore, when PETG is paired with Magmark SS coatings, it is not considered problematic, according to the new wording. We’re thrilled to be able to help brands address Target 1 of the Pact by helping to transform the widely used PETG shrink label from problematic to recycling preferred. We invite you to check out our latest press release on the subject. https://lnkd.in/eY6UpAwr #Design2Recycle, #MagmarkSS, #SustainablePackaging, #PETRecycling #Recyclethelabel, #USPlasticsPact

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I'm thrilled to share our latest research findings, published in the Ceramics International Journal, titled "Enhancing Mechanical Strength of Sr-based Oxyfluoride Glasses in Glass Ionomer Cement through Phase Separation." This study, led by our team at the Iran University of Science and Technology, with significant contributions from Dr. @Hamid Reza Rezaie, Dr Bijan Eftekhari Yekta, Dr. JAFAR JAVADPOUR, and invaluable guidance from Professor John Nicholson of Queen Mary University of London, presents a novel approach to improving the mechanical strength of Sr-based #oxyfluoride_glasses. This article is particularly attractive to researchers and professionals in the fields of #materials_science, #ceramics, and #glass technology, as it offers a fresh perspective on material development and optimization. It also holds potential implications for various applications, including structural components and protective coatings, where the mechanical strength of materials is crucial. ✍️ Access Via: https://lnkd.in/ew-qY-3X For those interested in the cutting-edge research and innovative solutions we've developed, I encourage you to explore our publication in Ceramics International Journal. Your feedback and insights are always welcome, as we continue to push the boundaries of what's possible in material science. #Ceramics #MaterialScience #Innovation #MechanicalStrength #SrOxyfluorideGlasses #GlassIonomerCement #PhaseSeparation

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Take a look at this #OpenAccess Issue Highlight article from our latest issue: "Performance evaluation of biodegradable polymer PHBV and PBAT blends with adjustable melt flow behaviour, heat deflection temperature, and morphological transition" https://lnkd.in/ejZRfpjM

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Understanding Resin Pricing Trends: What It Means for Manufacturing At PSI Molded Plastics, we know how critical resin pricing is to our customers' success. The latest insights from Plastics News highlight key shifts in the market, affecting raw material costs and supply chain stability. These changes underscore the importance of working with a partner who prioritizes flexibility and collaboration. Our team is here to help navigate these trends, ensuring your projects stay on track without compromising quality. Let’s connect to discuss how we can optimize your manufacturing needs in a dynamic market. 📈 What trends are impacting your business right now? Share your thoughts below! #ResinPricing #PlasticManufacturing #InjectionMolding #SupplyChainManagement #CustomMolding #ManufacturingInnovation #PlasticsIndustry

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A customized powder coat finish for hinges offers several benefits that are hard to argue, including improved appearance, corrosion resistance, environmental friendliness, and cost-effectiveness. Read on: https://hubs.la/Q02szp8q0

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Want to learn how to successfully formulate emulsions for PSA applications? July 31st webinar will help your team understand the fundamentals of emulsion polymerization to successfully formulate emulsion based #adhesives for end use applications -- https://lnkd.in/eSktfViA Raj Hariharan with Mapei will help you gain a deeper understanding of #polymerization techniques, polymer recipe and #sustainability aspects of emulsion polymerization. Formulators/process engineers should attend to gain technical knowledge on how to use #emulsion polymerization to successfully formulate in the laboratory.

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Don't miss next week's webinar if you are a #formulator, process #engineer, R&D scientist, #chemist, technology manager, or technical staff member! Raj's expertise is extensive and you will NOT want to miss this important 1hr webinar. #adhesives Raj Hariharan Mapei

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Global Thermoplastic Powder Coatings Market Outlook: Key Trends, Growth Drivers, and Future Prospects (2024-2032) The Thermoplastic Powder Coatings market is projected to experience strong growth, driven by advancements in technology, environmental policies, and increasing demand across industries. 📈 Key Insights: Market Size (2024): US$ 2.5 billion Market Size (2032): US$ 4.8 billion #CAGR (2024-2032): 8.7% Which Applications Will Grow the Most? #Automotive #Industry is expected to see the highest growth, driven by trends in #electric #vehicles and lightweight materials. #Outdoor/ #Architectural Applications will experience robust growth due to rising demand in #infrastructure development and #sustainable building materials. #Appliance & #Housewares will see moderate growth as consumers prioritize sustainability and durability in household products. 🌐 Regional Outlook: North America (U.S., Canada, Mexico) – Expected to reach US$ 1.1 billion by 2032. Europe (Germany, U.K., France, Italy, Russia, Spain, Rest of Europe) – Estimated to grow at 7.2% CAGR, reaching US$ 900 million. Asia-Pacific (China, India, Japan, Singapore, Australia, New Zealand, Rest of APAC) – Anticipated to dominate with US$ 1.8 billion by 2032, capturing 37% of the global market share. South America (Brazil, Argentina, Rest of SA) – Forecast to grow at 5.8% CAGR. Middle East & Africa (Turkey, Saudi Arabia, Iran, UAE, Africa, Rest of MEA) – Market size projected to reach US$ 350 million. 🏢 Top Players in the Market: PPG TIGER Drylac Vietnam TIGER Drylac Thailand TIGER Drylac Japan（タイガードライラックジャパン）TIGER Drylac North America Axalta (DuPont) AkzoNobel American Powder Coatings, Inc. Sherwin-Williams IFS Powder Coatings, Inc. RPM International Inc. Valspar 3M Midwest Industrial Coatings, Inc. (MICI) Cardinal Paint & Powder MASCO Masco Corporation Erie Powder Coatings Diamond Vogel Paints The Thermoplastic Powder Coatings market is projected to see substantial growth, with its application in sectors like #automotive, #architecture, and #housewares driving demand. This study offers a detailed analysis of market dynamics, competitive landscape, and regional trends to inform strategic decision-making. Stay ahead of competitors with actionable insights from the Thermoplastic Powder Coatings market report! Request a FREE SAMPLE of this report here; https://lnkd.in/dUX3wgCf #ThermoplasticPowderCoatings #MarketGrowth #CoatingIndustry #MarketResearch #GlobalExpansion #TechnologyInnovation #Sustainability #AutomotiveIndustry

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SCCS Gives Its Final Opinion on New Coating for Titanium Dioxide (Nano Form) Considering all the provided information, the SCCS is of the view that there are a number of uncertainties and data gaps that do not allow a conclusion on the safety of titanium dioxide (nano) coated with a combination of w/w 6% Aluminum Hydroxide, 14% Sodium Myristoyl Sarcosinate and 10% Dimethicone (Eclipse 70) - either on the basis of a similarity to the TiO2 nanomaterials previously assessed by the SCCS, or on the basis of the additional information provided in the current submission and during the commenting period. #cosmeticregulations #sunscreen #titaniumdioxide #cosmeticsafety #cosmeticscience #cosmeticchemist #beautyindustrynews #beautyindustrynews #businessofbeauty https://buff.ly/3YPMKkZ

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Please check out the most recent paper in the field of fire retardant polymers. Many thanks to Aloshy Baby for leading this important work

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🕵️ Ever since PEA 46 was first synthesized, its unusual calorimetric curve was a mystery we wanted to investigate. 🧩 Cross-comparing DSC and WAXS analyses was a challenging puzzle, and its solution shed new light on the complex polymorphism of poly(ester amide)s. 👁️ Take a closer look at what we have just published, in collaboration with Fraunhofer WKI and the Aristotle University of Thessaloniki (AUTH). #FUR4Sustain #UNIBO #innovation

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