polymerguru

Today's KNOWLEDGE Share Understanding Common Issues with Color Masterbatches in Injection Molding The use of color masterbatches is prevalent in injection molding. However, over the years, I have frequently encountered several issues that typically result in surface defects on the molded parts. These issues can be categorized into three main scenarios: 1. Incompatible Carrier Materials Sometimes, masterbatches (e.g., with 50% pigment and 50% carrier) use a high-flow carrier like LLDPE, even when the host polymer to be colored is not LLDPE-based. Issue: The incompatible high-flow carrier is pushed to the surface by hydrodynamic forces. For instance, small amounts of LLDPE in a nylon part can readily create blisters or delamination. 2. Neglecting to Dry the Masterbatch In nylon or polyester parts, even when the masterbatch uses the correct carrier (same as the host matrix to be colored), users often neglect to dry the masterbatch, drying only the bulk resin to be molded. Issue: User...

  Today's KNOWLEDGE Share Neste and Braskem, the largest producer of thermoplastic resins in the Americas, have reached an agreement for the supply of renewable and recycled feedstocks for polymers and chemicals production. Braskem products based on these feedstocks are expected to be available on the market starting from the fourth quarter of 2024. These products will be sold mainly in South America and included in Braskem’s Wenew product portfolio.  “This is a very important moment for the industry. We're introducing a new solution that will adhere to the industry’s high quality standards while ensuring sustainability right from the start of the value chain. This partnership with Neste is a significant milestone in our journey towards a circular economy,” stated Fabiana Quiroga, Director of Circular Economy at Braskem in South America.  Braskem will sell polymer resins and chemicals made from Neste’s more sustainable feedstock Neste RE™: the recycled feed...

Today's KNOWLEDGE Share DOMO Introduces PA6-based WRAS-certified Solutions for Drinking Water Applications DOMO Chemicals announces the successful achievement of the first PA6-based Water Regulation Approved Scheme (WRAS)-certified solutions, demonstrating that the material is suitable for drinking water contact applications.  Eliminates Risk of Galvanic Corrosion and Scale Formation: With increasing urbanization, one of today’s key challenges is to provide sustainable access to quality water. An optimal way to do this is to provide advanced polyamide technology for metal replacement and high-end polymers for the water management industry. This helps to ensure greater sustainability, lower system and maintenance costs, and easier and safer handling of water.   "Our new range of TECHNYL® SAFE C can effectively replace brass and other metals in water distribution, filtration and irrigation, sanitary and small appliance components requiring WRAS approval up to 85°C," sa...

Today's KNOWLEDGE Share Xenia Launches 50% CF Reinforced Bio based PA 10.10 Grade This new carbon-fiber reinforced material, based on PA10.10, delivers exceptional strength and durability while being 100% bio-based. This new material not only represents a step forward in performance but also aligns with Xenia®’s commitment to sustainability. Suitable for High Temperature Applications: With up to 50% carbon fiber reinforcement, XECARB® 31 ensures increased stiffness, making it ideal for structural applications that demand superior mechanical strength. Furthermore, this new compound is well-suited for environments that require higher operating temperatures without compromising performance, thanks to its high melting point. The PA10.10 base polymer ensures significantly reduced moisture absorption, improving long-term durability. Its excellent cold impact resistance makes it suitable for applications frequently exposed to low temperatures, such as outdoor environments and high-altitud...

Honeywell and SGP BioEnergy today announced they are working together to develop new, scalable technology to convert industrial hemp and other plant-based material into biochemicals that can be used to produce plastics and other everyday items, offering an alternative to chemicals produced from fossil fuels. As part of this collaboration, Honeywell will develop the new technology that enables plant material to be used as feedstock for biochemical production on an expanded scale. SGP BioEnergy will provide the infrastructure, workforce and second-generation feedstock, including industrial hemp, for this initiative through its “READY.GROW.” program. To ensure safe and efficient unit operations, Honeywell will provide ongoing operational support and workforce training for the team at SGP BioEnergy. The collaboration with SGP BioEnergy supports Honeywell’s alignment of its portfolio to three powerful megatrends, including the energy transition. “Honeywell is committed to developin...

China continues to stretch its lead in the high-speed rail industry, debuting a hydrogen-powered train at InnoTrans 2024. The zero-carbon train — made by China Railway Rolling Stock Corporation's Qingdao Sifang — travels up to 200 kilometers per hour (125 mph) and can cover 745 miles before needing a recharge. It was unveiled at the transportation technology trade fair, held in Berlin at the end of last month, as Newsweek reported. The four cars of the CINOVA H2 hold more than 1,000 passengers, and the train can be refueled in 15 minutes. It generates 960 kilowatts of electricity, producing no pollution and releasing only water. "Its design emphasizes a green and sustainable approach," senior designer Liang Caiguo said. "The water emitted from the hydrogen fuel cell reaction is purified and recycled to meet passenger water needs. Additionally, the waste heat from cooling the hydrogen fuel cell is repurposed for heating the air conditioning system ...

  Today's KNOWLEDGE Share Why need to set optimum Epoxy Resin content for COPV applications? The strength of composites depends predominantly on their reinforcements.I have identified from my experience in the Type 4 composite cylinder project that has been proved that the resin content directly affects the tensile strength, modulus of elasticity, Poisson's ratio and other mechanical properties of laminates. It is mandatory to have studied the fracture analysis of the resin system and carbon fiber laminates to identify the problems in the fracture analysis and to be sorted out before proceeding to the prototype stage in the project. Based on the manufacturing set up,production time &expected properties of the composites,need to select the right grade of epoxy resin with hardener. Hardener plays a vital role in getting the suitable epoxy resin system.There's a deep understanding of the epoxy chemistries and its curatives are needed to select the right choice of hardener ...