Events

Description:

Practical Applications in Research & Quality Labs in Polymer Industry

Jun Wang

Application Scientist, Thermal/Elemental Analysis

PerkinElmer

Abstract

HyperDSC®, or Fast-Scan DSC (Differential Scanning Calorimetry), is a breakthrough thermal analysis technique using very fast temperature scanning rates (up to 750 °C/min in heating mode and over 2000 °C/min in cooling mode) over a broad temperature range. The benefits of fast scanning include 1. increased sensitivity, 2. ability to measure sample properties without unwanted annealing effects, 3. separation of overlapping events with different kinetics, and 4. high throughput. A variety of applications including thermosets, thermoplastics and pharmaceutical polymers will be presented: detecting weak transitions; handling smaller samples; exposing a buried Tg; suppressing unwanted changes (e.g., cold crystallization, curing) on heating; moving competing events (e.g., water evaporation, thermal degradation) to a different temperature; mimicking real world heating and cooling cycles; and limiting decomposition in biological materials. Fast scanning provides a new solution to the challenges in material processes and characterization in the polymer industry.

Speaker Background

Dr. Jun Wang is an application scientist at PerkinElmer specializing in thermal analysis, elemental analysis, and hyphenated techniques. Jun received his Ph.D. from the University of Utah and did his Postdoctoral work in thermal analysis of polymers, combustion simulation of energetic materials, and characterization of novel catalysts for synthesizing new generation fuels. Previously, Jun worked as a research scientist at the Institute of Chemistry at the Chinese Academy of Sciences in Beijing where he focused on developing high-performance conductive polymers.

Timing:

6 PM social hour

7 PM dinner

8 PM lecture