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Today's KNOWLEDGE Share Historical Perspective: The Role of Artillery Fuses at Gettysburg    Nineteenth-Century cannon shells were often hollow iron balls packed with gunpowder. When the gun fired, a fuse in the shell ignited. When its flame reached the gunpowder charge, the ball would usually explode, showering the vicinity with metal shards. These products were the engineered materials of their day, relying on predictable and consistent burn rates. In theory, the gunners would cut the fuse to the appropriate length, based on the estimated range to their target and the mussel velocity of their gun. In practice, the procedures were governed by tables and rules of thumb derived from the experience of each gun crew with the supplies available to them. During the American Civil War (1861-5), fuses for Robert E. Lee’s Army of Northern Virginia were sourced from the Richmond Armory. However, in March of 1863, this facility suffered a devastating explosion and fire, curt...

𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 𝗛𝘆𝗽𝗲𝗿𝗣𝗘𝗧 𝐢𝐬 𝐭𝐡𝐞 𝐨𝐧𝐥𝐲 𝐦𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐚𝐥 𝐏𝐄𝐓 𝐮𝐩𝐜𝐲𝐜𝐥𝐢𝐧𝐠 𝐬𝐲𝐬𝐭𝐞𝐦 𝐭𝐡𝐚𝐭 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐬 𝐭𝐡𝐞 𝐞𝐧𝐭𝐢𝐫𝐞 𝗦𝗼𝗹𝗶𝗱 𝗦𝘁𝗮𝘁𝗲 𝗣𝗼𝗹𝘆𝗰𝗼𝗻𝗱𝗲𝗻𝘀𝗮𝘁𝗶𝗼𝗻 (𝗦𝗦𝗣) 𝐩𝐡𝐚𝐬𝐞 𝗯𝗲𝗳𝗼𝗿𝗲 𝗲𝘅𝘁𝗿𝘂𝘀𝗶𝗼𝗻. This strategic choice – apparently simple – actually delivers concrete advantages on multiple levels. ✅ 𝗘𝗡𝗘𝗥𝗚𝗬 𝗦𝗔𝗩𝗜𝗡𝗚𝗦 𝗧𝗛𝗥𝗢𝗨𝗚𝗛 𝗔 𝗖𝗢𝗡𝗦𝗜𝗦𝗧𝗘𝗡𝗧 𝗧𝗛𝗘𝗥𝗠𝗔𝗟 𝗣𝗥𝗢𝗚𝗥𝗘𝗦𝗦𝗜𝗢𝗡. Positioning the SSP before extrusion allows the polymer to follow a 𝗰𝗼𝗵𝗲𝗿𝗲𝗻𝘁 𝘁𝗵𝗲𝗿𝗺𝗮𝗹 𝗽𝗿𝗼𝗴𝗿𝗲𝘀𝘀𝗶𝗼𝗻 across all process phases: from the initial crystallization (>140°C), to the Solid State Polycondensation (>200°C), to extrusion (>250°C) and finally to the post-crystallization (~140°C) of the pellet - 𝘵𝘩𝘦 𝘩𝘦𝘢𝘵 𝘢𝘤𝘤𝘶𝘮𝘶𝘭𝘢𝘵𝘦𝘥 𝘪𝘯 𝘦𝘢𝘤𝘩 𝘱𝘩𝘢𝘴𝘦 𝘪𝘴 𝘤𝘰𝘯𝘴𝘪𝘴𝘵𝘦𝘯𝘵𝘭𝘺 𝘳𝘦𝘶𝘴𝘦𝘥 𝘪𝘯 𝘵𝘩𝘦 𝘯𝘦𝘹𝘵 𝘰𝘯𝘦. Conversely, in conf...

Kolkata-based #HimadriSpecialityChemical may soon become the first company in India to set up a #carbonnanotube (CNT) manufacturing unit, said company’s CMD and CEO Anurag Choudhary. “We have successfully developed indigenous carbon nanotube (CNT) technology through our in-house innovation and R&D, marking another milestone in our innovation journey,” Choudhary said. “Backed by a planned capex of around Rs 70 crore, our upcoming 200 TPA (tonnes per annum) CNT facility, targeted for commissioning in Q4FY27 in Bengal, is expected to place Himadri among a small group of global manufacturers serving this high-growth market. This will be a pilot plant, and once stabilised, we will expand,” he said. Carbon nanotube, according to Choudhary, is a next-generation material used in #lithiumionbatteries , #electronics , #semiconductors , conductive films, sensors, #advancedcomposites , #coatings , construction and aerospace, and is expected to benefit from strong global demand. #CNT is now ...

  𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 🔍 𝐒𝐢𝐥𝐢𝐜𝐨𝐧𝐞 𝐯𝐬. 𝐓𝐏𝐔 𝐢𝐧 𝐁𝐢-𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥 𝐌𝐨𝐥𝐝𝐬: 𝐖𝐡𝐢𝐜𝐡 𝐎𝐧𝐞 𝐢𝐬 𝐭𝐡𝐞 𝐑𝐢𝐠𝐡𝐭 𝐂𝐡𝐨𝐢𝐜𝐞? ▶️ At Star Moldes, we know that selecting the right material is just as important as designing the right mold. When it comes to bi-material injection molding, Silicone (LSR) and TPU (Thermoplastic Polyurethane) are two popular options, but they offer very different advantages. 🧪 Silicone (LSR) ✅ Excellent resistance to extreme temperatures ✅ Outstanding flexibility and long-term durability ✅ Biocompatible and ideal for medical, healthcare, and food-contact applications ✅ Superior UV and weather resistance ⚠️ Considerations: • Requires specialized LSR injection molding equipment • Higher processing complexity and tooling requirements • Longer development and validation process 🛡️ TPU ✅ High abrasion and tear resistance ✅ Excellent impact absorption ✅ Recyclable as a thermoplastic ✅ Faster processing cycles and ...

When plastics are recycled, the various colours mix to create dark, low-value materials in a process known as downcycling. Conventional recycling methods cannot effectively separate colourants from plastics. Alternatively, chemical decomposition methods to remove colourants exist, but they require high temperatures of 300–500°C and lead to substantial energy consumption. These limitations thus present a growing need for upcycling technologies that enable efficient separation of colourants under milder conditions and allow plastics to be repeatedly reused as high-quality materials. In search of a solution, a research team led by Associate Professor Kenji Okada and Professor Masahide Takahashi from Osaka Metropolitan University’s Graduate School of Engineering, in collaboration with #FujiPigmentCoLtd ., developed a novel approach using #silicamicrospheres to encapsulate #colourants utilising a spray-drying method. Silica, a primary component of sand and glass, is highly resistant to he...

As packaging and industrial applications become more complex, manufacturers need reliable ways to combine materials that do not naturally bond well together. MODIC™ is an adhesive and easy-peel sealant resin designed to provide adhesion across a wide range of materials, including PE, PP, EVOH, PA, PET, metals, and glass. Used as a tie layer or peelable sealant, it gives manufacturers greater flexibility when developing structures with different functional requirements. 𝗠𝗢𝗗𝗜𝗖™ 𝘀𝘂𝗽𝗽𝗼𝗿𝘁𝘀: • 𝗠𝘂𝗹𝘁𝗶𝗹𝗮𝘆𝗲𝗿 𝗽𝗮𝗰𝗸𝗮𝗴𝗶𝗻𝗴: Films, sheets, bottles, and containers that combine structural, barrier, and sealing materials within one format. • 𝗙𝗹𝗲𝘅𝗶𝗯𝗹𝗲 𝗽𝗮𝗰𝗸𝗮𝗴𝗶𝗻𝗴: Tie-layer and sealant applications for blown films, cast films, extrusion lamination, and easy-peel lidding. • 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗮𝗹 𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝘀: Multimaterial components, coated pipes, composite panels, and other applications where strong adhesion between different substrates is required. •...