PlasticsToday
WEBPlasticsToday Events. The transformation encompasses the current slate of Informa Markets Engineering advanced manufacturing events. PlasticsToday covers developments in injection molding, extrusion, thermoforming, …
Resin Pricing recent news - Plastics Today
WEBResin Pricing. Resin Pricing. Resin Price Report: Prices Drop Amid Relatively Mild Hurricane Season. PE commodity resins drop by as much as a penny, while PP resins are down one to two cents. by Staff. Sep 18, 2024.
About the Author - Injection Molding Magazine
WEBAug 13, 2016 · Three-zone principle. The screw starts with a feed zone: Constant depth, takes up 15 to 30% of length. In the middle is the compression zone, walls close in on the melt/pellet mix, drive air backward and make up for slipping and rolling of pellets in the feed zone. This zone contains the “barrier” of barrier screws: A long double-channel ...
Extrusion Basics: The Taming of the Screw - Injection Molding …
WEBSep 19, 2021 · It’s much faster than inside any extruder — in a 12-in./30-cm barrel, running fast at 100 rpm, a particle at the barrel wall still reaches only 314 ft/min, or 0.36 miles per hour. None of this is important in running an extruder, but to us engineers, it’s fun. It is important, however, to understand how a screw works.
Snap-fit Design for Injection Molded Plastic Parts
WEBNov 15, 2019 · The equilateral and half-round profiles enable snapping on or off two parts simply by pressing them together or pulling them apart. We will examine the design considerations associated with each of these snap options based on the previous list of parameters. Deflect within the strength limits of the plastic.
The Materials Analyst, Part 22:Stress cracking: How to avoid this ...
WEBJul 13, 1999 · He is the technical director at Dickten & Masch Mfg., a molder of thermoset and thermoplastic materials in Nashotah, WI. He has provided analytical services to material suppliers, molders, and end users for the last 10 years. He can be reached at (414) 369-5555, Ext. 572. Stress cracking is one of the …
Berry, Glatfelter to Create Global Specialty Materials Leader
WEBFeb 8, 2024 · At a Glance. Berry Global and Glatfelter plan to merge their Health, Hygiene, and Specialties segment in a $3.6 billion deal. The yet-unnamed company will provide major global brand owners with polymer- and fiber-based solutions. The independent company will provide substantial shareholder value and a renewed focus on long-term growth.
Unlocking Properties of New Polymers Using Machine Learning
WEBAug 26, 2024 · The mechanical properties analyzed included stiffness, elasticity, heat-deflection temperature, and tensile strength. The team found that the machine learning analysis accurately linked features in the X-ray diffraction imagery with specific material properties of the polymers. Some of the mechanical properties …
Liquid Death May ‘Murder Your Thirst,’ but It Won’t Kill Plastic, No ...
WEBMar 22, 2024 · The company claims that its liquids will “Murder Your Thirst,” coming in flavors such as “Berry it Alive” and “Rest in Peach.” (I seriously enjoy the puns, even though I’ve never bought any of the products.) Regardless of the product, they all share: the ubiquitous #deathtoplastic hashtag; a promise that a portion of profits will ...
The Materials Analyst, Part 23:Stress cracking: How to avoid this ...
WEBAug 14, 1999 · Once the stress is relieved by the initiation of the crack, the material does not undergo any further chemical attack. Two solutions were posed to this problem. The first option was to change to a filled polypropylene. Polypropylene is semicrystalline and therefore has much better chemical resistance than polystyrene.