Exploring the: Polyolefins Zone



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MATERIALS: Performance in Polyethylene: Density Matters: Part II
Remembering the case of the failed gas tanks.
Columns Published: 7/28/2014
MATERIALS: Performance in Polyethylene: Density Matters
In polyethylene, density provides another mechanism to control properties. But it must be specified properly.
Columns Published: 6/19/2014
Melt Flow Rate Testing–Part 1
Though often criticized, MFR is a very good gauge of the relative average molecular weight of the polymer. Since molecular weight (MW) is the driving force behind performance in polymers, it turns out to be a very useful number.
Columns Published: 6/24/2013
Density & Molecular Weight in Polyethylene
This so-called 'commodity' material is actually quite complex, making selecting of the right type a challenge.
Columns Published: 5/29/2012
Resin Buying Strategies - November 2010 Year-End Tabs Flat or Slightly Higher
Except for PP, prices of commodity resins bumped upward in November.
Columns Published: 1/5/2011
Resin Buying Strategies - November 2010 Resin Prices Mostly Flat or Soft
Prices of commodity resins other than PVC moved up in September—and, in the case of polypropylene, rose a bit more in October.
Columns Published: 1/4/2011
Resin Buying Strategies - October 2010 A Brief Respite from Price Hikes?
Prices of commodity thermoplastics, except for PVC, moved up last month.
Columns Published: 1/3/2011
Resin Buying Strategies - September 2010: Prices May Stabilize… Briefly
Prices of commodity resins, except for polypropylene, fell a bit more last month.
Columns Published: 12/23/2010
Resin Buying Strategies - August 2010: Commodity Resins Still Falling
The steady decline in commodity resin prices continued last month and into August.
Columns Published: 12/14/2010
Resin Buying Strategies: Commodity Resin Prices Down
Prices of four major commodity resins continued to drop last month, albeit at a somewhat lesser velocity than in May.
Columns Published: 7/1/2010

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