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  𝐃𝐞𝐧𝐬𝐢𝐭𝐲 𝐨𝐟 𝐏𝐥𝐚𝐬𝐭𝐢𝐜 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 source : Sanjay Saxena

𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 𝑻𝒉𝒆 𝒅𝒆𝒔𝒊𝒈𝒏 𝒐𝒇 𝒂 𝒄𝒐𝒎𝒑𝒐𝒖𝒏𝒅𝒊𝒏𝒈 𝒆𝒙𝒕𝒓𝒖𝒅𝒆𝒓 𝒄𝒂𝒏 𝒎𝒂𝒌𝒆 𝒕𝒉𝒆 𝒅𝒊𝒇𝒇𝒆𝒓𝒆𝒏𝒄𝒆 𝒃𝒆𝒕𝒘𝒆𝒆𝒏 𝒂 𝒔𝒕𝒂𝒃𝒍𝒆 𝒑𝒓𝒐𝒄𝒆𝒔𝒔 𝒂𝒏𝒅 𝒂 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏 𝒍𝒊𝒏𝒆 𝒇𝒖𝒍𝒍 𝒐𝒇 𝒄𝒉𝒂𝒍𝒍𝒆𝒏𝒈𝒆𝒔. For 𝐡𝐞𝐚𝐭-𝐬𝐞𝐧𝐬𝐢𝐭𝐢𝐯𝐞 𝐟𝐨𝐫𝐦𝐮𝐥𝐚𝐭𝐢𝐨𝐧𝐬 such as XLPE cable compounds and highly filled systems, 𝐜𝐨-𝐤𝐧𝐞𝐚𝐝𝐢𝐧𝐠 𝐞𝐱𝐭𝐫𝐮𝐝𝐞𝐫𝐬 offer a unique processing advantage. 𝐔𝐧𝐥𝐢𝐤𝐞 𝐜𝐨𝐧𝐯𝐞𝐧𝐭𝐢𝐨𝐧𝐚𝐥 𝐭𝐰𝐢𝐧-𝐬𝐜𝐫𝐞𝐰 𝐞𝐱𝐭𝐫𝐮𝐝𝐞𝐫𝐬 that rely on intensive shear, co-kneaders combine low shear with intensive distributive mixing, resulting in excellent homogenization while minimizing thermal and mechanical degradation. Their continuous reciprocating screw movement renews the material surface during processing, 𝐞𝐧𝐬𝐮𝐫𝐢𝐧𝐠 𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐝𝐢𝐬𝐩𝐞𝐫𝐬𝐢𝐨𝐧 of fillers, pigments, additives, and stabilizers without exposing the polymer to excessive shear stress. 𝐓𝐲𝐩𝐢...

𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐑𝐞𝐟𝐫𝐚𝐜𝐭𝐢𝐯𝐞 𝐈𝐧𝐝𝐞𝐱 The refractive index (RI) of a polymer is the ratio of the speed of light in a vacuum to the speed of light through the polymer. It varies with frequency (and thus wavelength) of light. Typically, it is measured at well-defined spectral wavelengths; for example, the yellow sodium double emission at 589nm wavelength. As other properties, refraction indices are temperature dependent. RI of air and water are 1.0 and 1.31 respectively. 𝐓𝐡𝐫𝐞𝐞 𝐩𝐫𝐨𝐩𝐞𝐫𝐭𝐢𝐞𝐬 𝐨𝐟 𝐩𝐨𝐥𝐲𝐦𝐞𝐫𝐬 𝐚𝐫𝐞 𝐫𝐞𝐥𝐚𝐭𝐞𝐝 𝐭𝐨 𝐭𝐡𝐞𝐢𝐫 𝐫𝐞𝐟𝐫𝐚𝐜𝐭𝐢𝐯𝐞 𝐢𝐧𝐝𝐞𝐱: Light rays change direction when they cross the interface from air to the polymer. Light reflects partially from surfaces that have a refractive index different from that of their surroundings. The dispersive effect due to the diversity of the wavelengths of the light, the bending effect being frequency dependent.   The lower the ...

  🌳 𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐭𝐡𝐞 𝐏𝐥𝐚𝐬𝐭𝐢𝐜𝐬 𝐓𝐫𝐞𝐞: 𝐅𝐫𝐨𝐦 𝐑𝐚𝐰 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 𝐭𝐨 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧 🌳 As polymer chemists, we look at plastic and see an incredible journey of chemical engineering. This "Plastics Tree" chart perfectly simplifies how everything we produce connects back to one source: Crude Oil. Here is how the chemistry breaks down from roots to leaves: 🌱 The Base (The Roots) Everything starts with Crude Oil / Petrol. Through Cracking, we break it down into core molecules like Ethylene and Propylene. 🌿 The Commodities (The Main Branches) PE (HDPE, LDPE, LLDPE): The foundation of flexible and rigid packaging. PP (Polypropylene): Known for its high heat resistance and durability. PVC: The standard for piping and construction. 🏆 The Engineering Polymers (The Canopy) Specialized materials like ABS, PMMA, and PTFE. These are engineered for high-performance, automotive, and industrial applications. In plastic manufacturing, our daily go...

Today's KNOWLEDGE Share 📢Time to Get Technical📢 Back to fundamentals. 👀 One of the most important variables in composite design is not just the material itself, but how the reinforcement is arranged within the laminate. Short fibers, chopped strand mats, woven fabrics and unidirectional reinforcements can all be made from the same fiber, yet deliver very different mechanical properties. Why? Because fiber orientation directly influences how loads are transferred through the structure. The more aligned the fibers are with the applied load, the more efficiently the material can carry it. This is why reinforcement architecture is such a critical design parameter in composite engineering. Same constituent materials. Completely different structural behavior. 🕵🏻‍♀️ What trends do you notice in the graph? 🤔 source : The Native Lab

Designed for rapid deployment, CS Patch uses our UV bonding technology to ensure reliable strain transfer for pressure cycling, burst testing and in-service structural monitoring. Now available through our webshop: https://lnkd.in/eV8Jqqtm Existing COPV? Patch it. source : Com&Sens #COPV #compositepressurevessel #hydrogenstorage #monitoring #innovation

TotalEnergies Corbion today announced the commercial launch of #Luminy®FOAM50F , a high melt strength #PLA grade designed for extrusion foamed packaging applications. Developed for trays used in fresh food products, like meat and fish, and food service packaging such as clamshells and bowls, the material delivers the performance of conventional #extrudedpolystyrene (XPS) while providing a lower-carbon, circular alternative. As packaging producers face increasing regulatory pressure to phase out polystyrene in food applications and with restrictions expanding globally, the market is actively seeking alternatives that combine environmental benefits with industrial scalability. Luminy® FOAM 50F addresses this need with a bio-based, industrially compostable material that enables a practical transition without disrupting established production processes. Luminy® FOAM 50F is engineered as a drop-in replacement for PS, allowing converters to run it on existing XPS extrusion lines with compa...