Plastics Materials

Materials used in plastics processing include plastics, thermoplastics or polymers, materials are the stuff of which molded and extruded parts are made. Broad subcategories include commodity materials such as polyethylene, polypropylene and PVC; and engineering materials such as nylon, acetal and ABS for applications requiring higher performance.

Neste RE Adds Co-Processed Feedstock
Materials

Neste RE Adds Co-Processed Feedstock

Feedstock for polymers and chemicals will be derived from renewable materials along with crude oil.

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ESSENTIAL READING

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Biopolymers

How to Optimize Injection Molding of PHA and PHA/PLA Blends

Here are processing guidelines aimed at both getting the PHA resin into the process without degrading it, and reducing residence time at melt temperatures.

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The Effects of Time on Polymers

Last month we briefly discussed the influence of temperature on the mechanical properties of polymers and reviewed some of the structural considerations that govern these effects.

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processing tips

The Effects of Stress on Polymers

Previously we have discussed the effects of temperature and time on the long-term behavior of polymers. Now let's take a look at stress.

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Tracing the History of Polymeric Materials, Part 26: High-Performance Thermoplastics

The majority of the polymers that today we rely on for outstanding performance — such as polysulfone, polyethersulfone, polyphenylsulfone and PPS — were introduced in the period between 1965 and 1985. Here’s how they entered your toolbox of engineering of materials.    

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Elastomers

Tracing the History of Polymeric Materials, Part 25: Silicones

The long road to the development of silicone resulted in a chemistry that is remarkably versatile.  

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best practices

The Importance of Melt & Mold Temperature

Molders should realize how significantly process conditions can influence the final properties of the part.

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large tonnage injection molding productivity
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New 2024 Twin Screw Report
Glycon's DM2: The High Performance Feedscrew
Repair and Rectify

Latest Materials News And Updates

sustainability

Dow Revoloop Resins for Cable Jacketing With Postconsumer Content

Announced resins will incorporate recycled material.

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polyolefins

ExxonMobil Launches New Materials Portfolio Brand

The Signature Polymers brand, which includes all polyolefins, is focused on delivering best-in-class service and partnership.

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Electronics

Biomass Balanced LCP for Reduced CO2 Emissions and Improved Renewable Content

Polyplastics’ Laperos bG LCP is slated for commercialization in spring 2025.

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Materials

SPE Foundation Establishes Memorial Scholarship for Materials Guru Sepe

Mike “The Materials Analyst” Sepe was a long-time SPE member and contributed more than 100 columns to Plastics Technology.  

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Additives

Compatibilizer for Nylon/ABS Alloys

CAI Performance Additives’ ST-AN3230 has shown to improve both compatibility and performance of nylon/ABS alloys.

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Additives

Eco-Friendly Flame-Retardant Synergist

CAI Performance Additives’ ST-FR322 effectively replaces antimony trioxide in several thermoplastics.

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New CM-17d
We ❤ Powders
TD-Series Desiccant Dryers
Best of the Best
Protect tooling with sensors from Smartflow

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Materials

Prices Up for PE, ABS, PC, Nylons 6 and 66; Down for PP, PET and Flat for PS and PVC

Second quarter started with price hikes in PE and the four volume engineering resins, but relatively stable pricing was largely expected by the quarter’s end.

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Part 3: The World of Molding Thermosets

Thermosets were the prevalent material in the early history of plastics, but were soon overtaken by thermoplastics in injection molding applications.

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Commodity Resins

Prices Drop for PP, Largely Flat for PE, PS, PVC, and PET

While the major correction in PP prices was finally underway, generally stable pricing was anticipated for the other four commodity resins.

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Let's Take a Journey Into the World of Thermosets: Part 2

Most thermoset molding processes still treat the mold like a black box where the curing process is invisible and mysterious, and nobody knows what is happening to the material until the mold opens. That just isn’t so.    

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Prices for PE, PS, PVC, PET Trending Flat; PP to Drop

Despite price increase nominations going into second quarter, it appeared there was potential for generally flat pricing with the exception of a major downward correction for PP.

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Heartland Polymers, North America’s Newest PP, Producer Makes NPE Debut

NPE2024: The only Canadian-based PP producer operates its inland complex just east of Edmonton, Alberta.

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Thinswitch confirms ejector plate return
Stop Wasting. Start Shredding
Purgex: Made in the USA. Trusted Globally.
chemical foaming agents for molding and extrusion
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