ADVERTISEMENT
You will be redirected to your destination in 10 seconds.
Electronics Industry Search

Polling Question

Should the government bail out U.S. automakers?

  • Yes
  • No



View Previous Poll Results
Advertisement

Link This | Email this | Blog This | Comments (1)

Plastic Bottles: The Green Mafia Strikes Again!

March 18, 2008

I’m probably just getting old, but I always swallow hard when I see discussion of plastics in the popular media. The current issue of Time, for example, has a one page article titled “Freshen Up Your Drink” under the heading of “health”. The article tackles the subject of whether it’s OK to re-use water bottles, and looks at the case for single-use PET, polycarbonate, HDPE and stainless steel. A table with the article states that HDPE is “made from petroleum”. Are people supposed to believe that PET and polycarbonate are not derived from petroleum? Possibly they are made from some magical substance that is totally benign from an environmental and health viewpoint. The article states that “PET degrades with use”, but that there are “no known problems” with HDPE. My goodness, HDPE, which is a lower quality material than PET, does not degrade with use? And wait a minute, weren’t we just told five minutes ago by the green lobby that we want this stuff to degrade?

The article tells Time readers to dispose of PET containers after a single use (or re-use them as flower pots!), re-use HDPE containers because they are safe, and re-use stainless containers because they are as safe as glass. Time indicates that scientists have concerns with BPA leaching from PC even at room temperature. The article cautions readers not to fill stainless containers with hot water, but makes no such admonition for HDPE! The melting point for stainless is around 2600F; HDPE, 430F!

I remember 30 or so years ago how much I hated all of the broken glass litter left from people who smashed beer bottles. Today, I do see some trash of cans or plastic bottles, but at least they aren’t a safety hazard. And now we’re worrying about whether it’s safe to re-use plastic containers? OK, but let’s at least make sure we make some sense from a technical perspective.

Posted by David Bridge on March 18, 2008 | Comments (1)
Industries:

March 25, 2008
In response to: Plastic Bottles: The Green Mafia Strikes Again!
56Packfan commented:

This appears to be a case of ignorant people talking green rather than green ones spouting stupidity. By my estimatation about 80% of Americans are very ignorant and another 15% mildly so. Unfortunately, the former run most of our society. Look no farther than the head of our government.

POST A COMMENT
Display Name
captcha

Before submitting this form, please type the code above:

Advertisement
Advertisement

Design News Partner Zones

AnarkCAD/CAE Model Clean-Up: Reduce Iterative Cycles
This webinar featured research and survey results related to problems associated with preparing CAD geometry for CAE applications.  We discussed how Recipe-Based Automation can help create "just-in-time" CAE-ready geometry each time a cad model is updated. Watch the Presentation


Light Matters: Systems Level Approach to HBLED illumination applications
Its good practice to apply a systems-level approach to high-brightness LED (HBLED) illumination applications. Minimally, the system includes the optical, thermal and electrical characteristics of the of the HBLED, the lens (if any) which is built-in to its package, secondary optics such as external plastic lenses/reflectors to direct the light as your application requires and power driver electronics. Read More


Design Engineers' Portal for Sensing and Machine Safety
Whatever industry you're in, or whatever product you manufacture, the right sensors to automate your plant, and to improve your overall efficiency, quality and safety are a must. You'll find Banner Engineering to be an amazing resource of products, training and people with expertise.

Design News Partner Zone Directory »

Please visit these other Reed Business sites