polymerguru

Today's KNOWLEDGE Share Effect of post-curing on the mechanical properties of carbonized phenolic resins: After curing, phenol-formaldehyde resins were post-cured at 160°C, 230°C, and 300°C in air for several hours, and then those post-cured samples were carbonized at 1000°C. The effect of post-curing on the physical properties and microstructure of the carbonized phenolic resin is reported in this article. The purpose of post-curing was to improve the mechanical properties of the carbonized resins. The post-curing process promoted the crosslinking reaction and the evolution of gases. The cured resin post-cured at a higher post-curing temperature (300°C) had a significantly higher weight loss, greater linear shrinkage and lower density than other samples. During carbonization the post-curing process not only decreased the weight loss but also limited the shrinkage. Post-curing also promoted the formation of carbon basal planes and the chemical densification in structures of the fin...

Today's KNOWLEDGE Share One truck vs. Six! When it comes to transportation efficiency, the difference between GFRP mesh and traditional steel mesh is crystal clear. To transport the same amount of steel mesh, you would need 6 trucks like the one in this photo, but with GFRP mesh, just 1 truck does the job! This lightweight innovation doesn't just save on logistics and costs; it also reduces fuel consumption, emissions, and time. That’s the kind of efficiency we aim for at Composite Tech FRP as we continue to provide cutting-edge composite solutions. The future of construction is lighter, greener, and stronger with GFRP 💪 source:Anton Ocunev- Composite Tech FRP

Footwear experts from Huntsman’s Polyurethanes business will be exhibiting at the NW Materials Show at the end of August where they will launch a gripping new soling development for the footwear industry. Dependable, durable, and developed with circularity in mind, the new portfolio of high performing thermoplastic polyurethane (TPU) products will be of interest to footwear brands producing running, hiking and safety shoes. Matthew Canoy, Global Marketing Director PU Elastomers at Huntsman, said: “We’re always excited to attend the NW Materials Show. This year there is an extra layer of anticipation as we prepare to launch a new range of soling materials for the footwear industry. Our latest product innovation follows the successful launch, last September, of SMARLITE® O liquid TPU (LTPU). The new technology we’ll be launching in August is compatible with SMARTLITE® O LTPU and is aligned with the sustainability, automation, customization and smart manufacturing needs of a sect...

Today's KNOWLEDGE Share Synthetic polymers against fungal infections When combined with antifungal drugs, synthetic polymers are particularly effective against Candida albicans. This is what a German-Australian research team found out and also clarified the mechanism of action behind it. The international collaboration came about by chance during an unplanned research stay that initiated the study at the Leibniz-HKI in Jena. Every year, over two million people are affected by invasive fungal infections, which are often caused by Candida species and are associated with high mortality rates. The development of new therapies is progressing very slowly. However, the need is increasing, especially as drug resistance is developing more and more frequently. An interdisciplinary research team led by Dr. Sascha Brunke from the Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute (Leibniz-HKI) has now investigated the mode of action ...

Today's KNOWLEDGE Share With LUXAN CFX B842 Immersion Red, effect pigment manufacturer ECKART is launching a new effect pigment based on borosilicate glass. It is characterized by a pure, powerful red tone, combined with a high sparkle. Maximized Visual Impact with Low Pigmentation The pigment stands out from conventional earth-tone effect pigments in that it does not transition into undesirable red-brownish color spaces. Compared to the already successfully launched LUXAN CFX C842 Spotlight Red, the new LUXAN CFX B842 Immersion Red has a more subtle effect, a smoother clear coat level and a reduced graininess - and thus fulfils the noticeable market demand for smaller particle sizes. The impressive sparkle creates a three-dimensional appearance with an optical depth effect. This so-called "diving effect" enhances every base color. Even low pigmentation levels maximize the visual impact. LUXAN CFX B842 Immersion Red is available in a weather-, shear- and chemical-resistan...

Today's KNOWLEDGE Share New Research Converts Waste Plastics into Valuable Carbon Nanotubes A research team in the Department of Energy and Chemical Engineering at UNIST has unveiled an innovative technology for converting waste plastics into carbon nanotubes (CNTs), a high-value material that plays a critical role in achieving carbon neutrality and promoting a circular economy. Demonstrating Mass-production of Low Emissions CNTs: Led by Professor Kwangjin An and Professor Hankwon Lim in the School of Energy and Chemical Engineering and the Graduate School of Carbon Neutrality at UNIST, the joint research team developed a method to produce carbon nanotubes using mixed gases generated from waste mask substances. During the pyrolysis of waste plastics, these materials are transformed into hydrocarbon gases, including methane, ethylene, and propylene. The researchers harness these gases, subjecting them to high-temperature treatment to create CNTs. The carbon nanotubes generated throu...

Today's KNOWLEDGE Share At times, the flow front in injection molding appears to chart its own course, making unexpected decisions. For instance, one would anticipate that the shorter and thicker side would fill the flange before moving on to fill the main pipe walls in this example. However, it's not uncommon to witness a counterintuitive scenario where a supposedly more challenging section fills faster, despite the expectation of higher pressure drop. Physics dictates that there must be a rationale behind such occurrences. Upon observing this phenomenon with RPVC, it became apparent that the significant extensional viscosity of the polymer played a crucial role. This viscosity demanded additional energy or pressure to navigate the 90° bend turn. Essentially, in situations where extensional viscosity is notable, it's easier for the flow to progress straight through a slightly narrower channel than to negotiate a sharp turn into a wider one. Traditional flow analysis softwa...

  BASALT STONE available in India: We have Basalt rock available in India with more than a couple of million tonnes available for sale under government leased agreement. Interested buyers can write to me on here rosaram211@gmail.com to have further discussion on placing the order. For bulk order,you can visit our place and can test the available stone /powder for your future requirements. Applications: Basalt fiber have been widely used in manufacturing of tanks,rope,honeycomb panel,fire resistant panel,braiding,Basalt chopped fiber reinforcements with asphalt road and concrete,rebars,Tubes,Geogrid mesh reinforcement for roads,Mufflers filler,Fabrics for thermal resistance,generator blades,headliners,brake pads,sports parts,thermoplastics composites etc. BASALT ROCK TEST RESULTS: BULK DENSITY:2.94 g/cm3 SiO2:52.6% Mn:14.9% Al2O3 :7.7% I was introduced to have trials with Basalt fiber by the end of 2003 and then we had manufactured Type 4 CNG cylinders out of Basalt f...

Today's KNOWLEDGE Share Development of Refined Natural Resin based Cashew Nut Shell Oil Liquid (CNSL) for Brake Pads Composite Development the composite-based brake pads aim to reduce the damage of train wheels and sparks during braking continually. Cashew Nut Shell Liquid (CNSL) is an oil composed from a complex phenolic compounds with long carbon chain branched and unsaturated. CNSL extraction that's done using hot water, which is then dried to remove water from the extract of physical separation by centrifugation.The main structure CNSL is 90% anarcadic acid and 10% cardol, but in detail components in the CNSL separated will depend on the treatment path will be executed. The increase in the levels of cardanol done through extraction using semi-polar and non-polar solvent. Raw CNSL has a high relative density because it has anarcadic acid as the major fraction, there is intermolecular attraction between the electronegative oxygen atom and the partially positive hydrogen atom ...

Hexagon Composites, world leader in composite cylinder technology and systems for storage and transportation of clean gaseous energy, has committed to being net zero by 2050. In July 2024, Hexagon’s net zero targets were validated by the Science Based Target initiative (SBTi). The SBTi defines and promotes best practice in science-based target setting, and independently assesses and approves companies’ targets. Being a provider of solutions that help fleets and OEM’s transition to low-carbon and carbon negative solutions, Hexagon recognizes the importance of reducing its own carbon footprint and is proud to join the over 5,800 businesses around the world that are working with the Science Based Targets initiative (SBTi). “We are pleased to have received the approval of our science-based net zero targets by SBTi,” says Jon Erik Engeset, CEO Hexagon Composites. “While we enable other industries to accelerate the pace of their emission reductions, we are committed to doing our part to redu...