February 2025 Issue

February 2025
Digital Edition
Features
Featured articles from the February 2025 issue of Plastics Technology

Bulk, Solid and Melt Density: How to Calculate These Values and Why They Matter — Part 2 of 2
Understanding and calculating solid density and melt density will help molders with everything from material and machine selection to determining piece part costs.
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Pursuing More Sustainable Plastic Pallets
Chilean lithium producer employs local molder with a specialized Engel duo 2-platen press to shift to pallets made from reclaimed plastics.
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Prices Generally Trending Upward for the Five Commodity Resins
Scheduled and unscheduled production disruptions, and projected higher feedstock costs could be key factors.
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Is There a Better Way to Heat PET Preforms for Stretch-Blow Molding?
Is near-infrared (NIR) heating better, faster and more energy efficient? So far, only two machine builders are making such claims for NIR in place of standard mid-infrared preform heating, though their systems appear to be well accepted. Meanwhile, an altogether different alternative is in the works.
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Polymer Showdown — PC/ABS vs. PC/PBT — May the Best Material Win
First in a series, experts from plastics engineering consultancy The Madison Group will pit leading thermoplastics against each other to see how they differ in processing characteristics, chemical resistance, thermal and mechanical performance, and more.
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Optimizing Melt-Fed Single-Screw Extruders on Compounding Lines
The main problem with melt-fed extruders that are starve-fed is setting the depth of the metering channel. In this scenario, we describe how this problem was solved.
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An Opportunity by Design
At the very moment that intensifying public pressure pushes the plastics industry to address waste in the environment, the sector is stepping up to reclaim the valuable materials it’s created.
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High Quality PCR With Mechanical Recycling Is Within Reach
Successful mechanical recycling of postconsumer materials requires market analysis, understanding requirements and building relationships across the value chain.
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Making Safety a Priority in Recycled Plastic for Personal Care and Food-Contact Products
Proper quality controls and feedstream selection can produce recycled materials for any application.
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Plastics Index Shows Fourth Consecutive Monthly Gain
December reading hints at slowing contraction as plastics industry outlook improves
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PTXPO Broadens Educational Opportunities
Beyond gleaning contacts and information by walking its bustling aisles, the third edition of the Plastics Technology Expo (PTXPO) will present attendees the opportunity to gather more than information on the latest technologies, they can also bring back knowledge.
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Novel Line Turns Fluff to Blown Film
Processor Bioflex of Mexico is utilizing Reifenhäuser Blown Film’s EVO Fusion technology to integrate postindustrial and postconsumer recycled materials into products.
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