{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Thermal_Properties - EMA 4666C POLYMER PROCESSING...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
EMA 4666C POLYMER PROCESSING LABORATORY THERMAL PROPERTIES PURPOSE: Receive training on the differential scanning calorimeter (DSC) and utilize DSC to measure the thermal response of poly(ethylene terephthalate) (PETP). The thermal characteristics of a polymer including Tg, Tm, enthalpy of fusion, and crystallinity will be measured using the DSC. LAB. PREPARATION: 1. How does a DSC work and what can it measure 2. What thermal transitions might you expect to see in the DSC traces from the PETP samples 3. Hypothesize about the crystallinity of the PETP samples taken from the different locations as it relates to the way the bottle was processed (review from the experiment 1), and how might this affect the DSC traces 4. Discuss anything else which may pertain to this lab. MATERIALS: Empty 2L clear soft drink PETP bottle (leftover from Experiment 1 - The effect of processing on mechanical properties) Amorphous PETP Film Annealed PETP Film Aluminum pans and covers Liquid nitrogen EQUIPMENT: Differential Scanning Calorimeter-Seiko Model DSC220C Auto cooling controller/dewar Digital Scale Razor blade or scissors Thermal protective gloves (cryogenic) Safety glasses PROCEDURE: Five PETP samples (amorphous PETP film, annealed PETP film, neck of PETP bottle,
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern