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*small particle size of glass powder poses a health hazard-- operate in fume hood if possible, wear safety glasses and respirator. | *small particle size of glass powder poses a health hazard-- operate in fume hood if possible, wear safety glasses and respirator. | ||
==Equipment or Bill of Materials== | ==Equipment or Bill of Materials== | ||
MG200 recycled soda-lime glass powder, by Vitro Minerals | |||
crushed polypropylene | |||
==Calibration & Tolerances== | ==Calibration & Tolerances== | ||
*zero balance w/ empty container before each measurement | |||
*tolerance of MyWeigh iM01 balance is 1000+/- 0.01 grams | |||
*sample mass should fall within a tolerance of +/- 0.1g, preferrably within 0.01 or 0.02 for more precision | |||
==Operation & Procedure== | ==Operation & Procedure== | ||
# prepare sample compositions, starting with 100% polypropylene and increasing glass content in increments of 10% by weight, measured on a balance | # prepare sample compositions, starting with 100% polypropylene and increasing glass content in increments of 10% by weight, measured on a MyWeigh iM01 balance | ||
# store measured glass for each composition in a plastic container with closed lid | # | ||
# store measured glass for each composition in a correctly labeled plastic container with closed lid | |||
*if containers of proper size are in short supply, use multiple smaller containers and label correctly | |||
# email Dr. Paul Fraley (pdfraley@mtu.edu) | # email Dr. Paul Fraley (pdfraley@mtu.edu) | ||
# take this safety training: | # take this safety training: | ||
Revision as of 16:34, 24 November 2018
Introduction
polymer and glass have very different particle sizes (glass powder <44 micron, polymer ~5mm diameter) these particles will not mix evenly unless the polymer melts
Safety
- small particle size of glass powder poses a health hazard-- operate in fume hood if possible, wear safety glasses and respirator.
Equipment or Bill of Materials
MG200 recycled soda-lime glass powder, by Vitro Minerals crushed polypropylene
Calibration & Tolerances
- zero balance w/ empty container before each measurement
- tolerance of MyWeigh iM01 balance is 1000+/- 0.01 grams
- sample mass should fall within a tolerance of +/- 0.1g, preferrably within 0.01 or 0.02 for more precision
Operation & Procedure
- prepare sample compositions, starting with 100% polypropylene and increasing glass content in increments of 10% by weight, measured on a MyWeigh iM01 balance
- store measured glass for each composition in a correctly labeled plastic container with closed lid
- if containers of proper size are in short supply, use multiple smaller containers and label correctly
- email Dr. Paul Fraley (pdfraley@mtu.edu)
- take this safety training: