polymerguru

Today's KNOWLEDGE Share Why should we avoid branched polymers in Injection Molding and always keep thickness constant when possible ? In a transition from thick to thin, the polymer undergoes substantial extensional flow. This aspect of flow is challenging to measure in a lab and difficult to implement correctly in Flow Analysis. When polymers are non-linear in their chain structure a strong "strain-hardening" will appear, resulting in unexpectedly high pressure drop at these thickness transitions. Runner to gate transitions may present significant pressure drop due to this elongational viscosity effect (possibly hundreds of bar, thousands of psi). We have of course many other good reasons to keep thickness as uniform as possible, first of which, the attempt to have uniform freezing rates everywhere, get uniform packing and minimize differential shrinkage. sourece:Vito leo

Today's KNOWLEDGE Share Some of the key advantages and limitations of POM compared to other plastics are highlighted below: POM vs Nylon POM has lower moisture absorption and better dimensional stability than nylon It has higher tensile strength, hardness and modulus than nylon Nylon offers higher toughness, ductility and impact strength compared to POM Nylon has better chemical resistance than POM, especially to bases, oils and greases POM provides lower coefficient of friction than nylon POM vs Polycarbonate POM has much higher strength, hardness and stiffness than polycarbonate PC offers very high impact resistance compared to brittle POM Polycarbonate has superior temperature resistance up to 140°C vs 90°C for POM POM has lower moisture absorption and better dimensional stability PC has higher ductility and fracture toughness compared to POM POM vs Polyimide Polyimide can withstand much higher temperatures than POM It has excellent strength retention at high temperatures v...

Today's KNOWLEDGE Share At Fakuma 2024, Tosaf will be presenting its latest developments in the field of property-enhancing masterbatches for the plastics industry. One focus will be on the optimization of products made from PET and rPET in particular. The company will also be presenting its new PPAX color masterbatches for coloring PPA, PFAS-free processing aids for film extrusion and halogen-free flame retardants for PP. Examples of Tosaf's commitment to sustainability will include the CO2 footprint calculator, bio-based materials, recyclates and biodegradable plastics. Optimizing the Properties of PET and rPET : As to be shown at Fakuma, Tosaf offers a wide variety of solutions for PET and rPET that help to optimize quality, efficiency, sustainability and costs during processing and recycling. With regard to the aesthetics and functionality of PET packaging, additives are available that correct the color and gloss of rPET or prevent water droplets from depositing on th...

Today's KNOWLEDGE Share Researchers have developed a way to make one type of plastic material more durable and less likely to shed dangerous microplastics. The study identified a secure way to attach chemical additives to polyvinyl chloride (PVC). Found in everything from toys, construction supplies and medical packaging, PVC plastics currently rank third among the most used plastics worldwide. Despite its widespread use, pure PVC is brittle and sensitive to heat, and manufacturers can only utilize it after stabilizing its properties with other chemicals. However, these additives, or plasticizers, are only a short-term fix for stabilizing PVC. Over time, plasticizers leach from the plastics, which allows the material to deteriorate into potentially hazardous organics and microplastics. Now, a team led by Christo Sevov, the principal investigator of the study and an associate professor in chemistry and biochemistry at The Ohio State University, found that using electricity to perman...

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 license. For bulk order,you can visit our place with your geologist 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% #basalt #basaltrock #basaltfiber

LATEST TYPE 4 COMPOSITE H2/CNG CYLINDER PROJECT REPORT: Newly added latest technological advancements in the composite cylinder manufacturing process and options on starting the project in the right direction to win the race in the global market. This report is available on competitive pricing-Moving toward a user friendly and a safer environment.Let's understand the market before venturing into the business. This report has covered the following topics: ■An overview landscape of the market ■Global Natural Gas Vehicles (NGVs) market ■ Latest technological advancements in Type 3/4 COMPOSITE H2/CNG Cylinder market ■ Merger & Acquisition ■ Major players share ■ Investment structure ■ Standards ■ costing and certification ■ Automotive Type 4 CNG/H2 Composite cylinder market in India and the rest of the world ■ Bulk transportation Type 4 CNG Composite cylinder market in India and the rest of the world ■ Swot analysis ■ The durability of the Type 4 Composite CNG cylinder ■ Initial Pr...

Today's KNOWLEDGE Share Avantium and Plastipak sign offtake agreement for the use of PEF for beverage and food packaging Avantium N.V., a leading company in renewable and circular polymer materials, has signed a conditional offtake agreement with Plastipak, a world leader in the design and manufacture of high-quality, rigid plastic containers for the food, beverage, and consumer products industries. Plastipak supplies containers and packaging products to many of the world’s largest consumer products companies. Plastipak will purchase the 100% plant-based, recyclable polymer PEF from Avantium’s FDCA Flagship Plant for the use in beverage and food packages, for consumers to use and enjoy in the United States. Plastipak is driven to develop circular solutions that protect the environment and meet its customers’ exacting standards for sustainability and performance. Over the past year, the company has been actively involved in evaluating the application of Avantium’s PEF (polyethylene ...