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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 | *MG200 recycled soda-lime glass powder, by Vitro Minerals | ||
crushed polypropylene | *crushed polypropylene stored in a closed, airtight plastic bag | ||
*respirator | |||
*ANSI Z87.1+ certified safety glasses with side shield | |||
*fume hood | |||
*2 cups for more careful massing of samples | |||
*several containers with closable lids (30-100 ml volume) | |||
*spoon for adding small amounts of glass powder | |||
* | |||
* | |||
* | |||
==Calibration & Tolerances== | ==Calibration & Tolerances== | ||
*zero balance w/ empty container before each measurement | *zero balance w/ empty container before each measurement | ||
Revision as of 16:39, 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 stored in a closed, airtight plastic bag
- respirator
- ANSI Z87.1+ certified safety glasses with side shield
- fume hood
- 2 cups for more careful massing of samples
- several containers with closable lids (30-100 ml volume)
- spoon for adding small amounts of glass powder
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: