Archive For The “Polymer” Category

Polymer Identification & Plastic Identification

By | May 5, 2010

Polyme/Plastic Recycling Codes Many times a company will get asked to manufacture a polymer or plastic part using only a sample part to guide them. Not an easy task at times, especially since literally thousands of polymer and plastic materials exist — and that does not count begin to take into account the number of […]

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Plastic Identification Numbers… What Do They Mean?

By | April 21, 2010

Over the past few months we have heard a lot of talk about the numbers printed on plastic containers which supposedly indicate the type of polymer material used to manufacture the plastic container… and only a few weeks ago we posted a blog entry about how someone needs to step in and enforce the numbering […]

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Polymer Testing Lab Web Site

By | April 16, 2010

A while back we posted information about glass transition temperatures, a topic related to differential scanning calorimetry. Since then we have had other questions from readers on polymer testing and in all honesty we think most of those questions got routed to a different web site because we just don’t know all that much about […]

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Definite Need for Proper Plastics Labeling… and Testing!

By | March 19, 2010

Pretty much everyone LOVES the idea of recycling the materials used to manufacture plastic containers and making ‘new’ plastic containers with the recycled resin. We look at the numeric labels/stamps on our containers and toss them into the proper recycling bins. Now off those bins go to get recycled. The numeric codes, ranging from 1 […]

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Polymer Testing: What is Differential Scanning Calorimetry?

By | December 13, 2009

As we prepared to post the last entry on glass transition temperature we figured that somehow we would get drawn back to the topic of polymer testing. Apparently we figured correctly because someone just asked us about differential scanning calorimetry. Wikipedia defines differential scanning calorimetry in the following manner: Differential scanning calorimetry or DSC is […]

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Polymer Testing: Glass Transition Temperature

By | December 11, 2009

Sam from Idaho asked, Our main (plastic) resin supplier infomred us that we have 3 months to find somewhere else to purchase a certain resin from because they will no longer manufacture it after that time. Yeah, sure, we can stock up on the stuff, but eventually we will need anoter resin source. We asked […]

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