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3M Summer TWIST Experience

BY W. KEITH BURGESS

Science & STEM Educator with Charlotte-Mecklenburg Schools

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What is the TWIST program?

  • Teachers
  • Working
  • In
  • Science
  • Technology

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  • The objective is to provide active and challenging technical experiences for teachers in an industrial setting. TWIST is based on the idea that the way to learn science is to do science.

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My summer projects:

  1. Particle collection in areas of the Hollow Fiber Manufacturing (HFM) facility.

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  • Investigation into Shrinkage patterns of Hollow Fiber material at various temperatures through the use of an Automatic Shrinkage Test (AST).

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Particle Data Collection

  • Collection of data was done with Apex Z3 Airborne particle counter

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Methods

  • Recipe I used to collect data:
  • 15 sec delay
  • 1 minute sample collected
  • 8 sec rest interval
  • 1 minute sample collected
  • Particle size samples collected in micrometers (µm)
  • .3 µm
  • .5 µm
  • 1 µm
  • 5 µm
  • 10 µm

(width of a strand of spider web silk 3-8µm; Fog droplet is 10 µm)

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Location of collection

  • Display HFM map describe J3 –J1 and extruders

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Exits and Entrance into HFM

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The End of all �

Set up at J3

J3 sampling

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Work station set up

Work station Sampling

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Hollow fiber leaving the oven

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Extruder Area

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Results

Results are proprietary and unable to be published

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Solutions

Solutions are proprietary and unable to be shared publicly

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Quality Control

Qualare proprietary and unable to be shared publicly