Rubber compounding additives to remove resorcinol, cobalt and formaldehyde
New options containing no
resorcinol and cobalt, and eliminating
formaldehyde emissions are examined.
Molding
Dow and MVP introduce the next generation of fast flow light resin transfer molding
Dow and Magnum Venus Products (MVP), a global manufacturer of fluid movement and production solutions for industrial applications, introduce a new polyurethane-enabled chemistry delivered by an innovative three component injection system using a unique Fast Flow Light RTM process. This innovative process for closed molding increases part production by decreasing injection times. The new technique is a blend of MVP’s Flex Molding Process and Light Resin Transfer Molding and utilizes collapsible resin channels for a faster resin flow.
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Alpine Advanced Materials introduces rapid prototype molding
Alpine Advanced Materials has introduced Rapid Prototype Molding (RPM) using Addifab’s proprietary resin system and Nexa3D’s printers to give clients a more rapid tool manufacturing solution that provides a functional and testable part at a fraction of the cost. Complementing Alpine’s suite of high-performance engineered materials and advanced design services, RPM Freeform Injection Molding delivers complex injection molded parts more quickly and affordably than when using standard steel molds.
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Troubleshooting a mold for injection molding
Opportunities abound in the rubber industry for polymers/ingredients suppliers, compounders,
processors, designers, mold makers and end users to embrace polymer flow analysis.
Molding Suppliers Directory for 2021
This molding directory supplement lists suppliers who offer molding equipment, materials and expertise to the rubber industry is only available
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SmartFlow analysis optimizes silicone and rubber tooling design
Mold design processes today benefit from sophisticated
design software that creates 3D models easily exported to
manufacturing, CAM programming and metal cutting
Injection molding training in Ireland moves ahead with Engel
Injection molding is an important sector of the manufacturing industry in Ireland. With the demand for plastics components, particularly in the medical sector, set to grow in the future, companies are giving significant thought to their ability to access a sufficiently well-trained workforce moving forward.
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Quality versus quantity: How changes in EPDM polymer impact molding
EPDM is a widely used polymer for many molded goods, as it is inherently water, ozone, UV and weather resistant, and generally recommended for temperatures ranging from -50°C to 150°C. EPDM can be a low cost material option, as it allows for high total loading and has a low specific gravity, yielding low pound-volume cost. EPDM responds well at various process temperatures, and is used in many applications, such as seals, gaskets, weather resistant parts, NSF 61 water potable applications, FDA applications, roofing components, electrical resistant compounds, and more
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Modification of fluoroelastomers based on TFE-P copolymer to improve cure speed, physical properties and mold release
This article presents research conducted to develop modified TFE-P that improves curability and mold release, and provides good amine resistance and compression set. It is demonstrated that a cure site monomer can easily be copolymerized into the TFE-P backbone to solve the abovementioned performance problems, while maintaining original TFE-P characteristics of resistance to heat, steam, and organic and inorganic acids and bases. In addition, it is possible to color the material
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Achieving savings in the post-curing process of fluoroelastomer compounds prepared by injection molding
Commonly, rubber compounds based on FKM elastomers are subjected to two stages of cure in order to optimize physical and mechanical properties. Compression set and tensile strength are the main properties usually improved by the post-cure stage. The initial stage is called curing, and is performed under pressure in a mold during the injection molding process. A secondary stage called post-cure is performed in an oven under air or nitrogen atmosphere in order to complete crosslinking reactions. This removes volatile by-products and additives to obtain enhanced, stable physical and mechanical properties
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