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Development of emission factors for polycarbonate processing.

Verne L Rhodes¹, George Kriek, Nelson Lazear

¹Product Regulatory Services, Inc., Gulf Breeze, Florida, USA.

Journal of the Air & Waste Management Association (1995)

|July 26, 2002

Summary

This study developed emission factors for volatile organic compounds (VOCs) and particulate matter during polycarbonate (PC) and PC/ABS blend processing. These factors help estimate industrial emissions from polymer extrusion operations.

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Area of Science:

Polymer Processing
Environmental Science
Chemical Engineering

Background:

Polycarbonate (PC) and PC/ABS blends are widely used polymers.
Industrial processing of these polymers can release volatile organic compounds (VOCs) and particulate matter.
Accurate emission factors are needed for environmental impact assessments and regulatory compliance.

Purpose of the Study:

To quantify emission factors for selected volatile organic compounds (VOCs) and particulate emissions.
To provide data for estimating atmospheric releases during commercial polycarbonate processing.
To support environmental management in the polymer processing industry.

Main Methods:

Processing eight commercial grades of polycarbonate (PC) and one PC/ABS blend using a small commercial-type extruder.
Maintaining a constant extrusion temperature of 304 degrees C.
Calculating emission factors as pounds released per million pounds of polymer resin processed (ppm (wt/wt)).

Main Results:

Emission factors were determined for specific volatile organic compounds (VOCs) and particulate emissions.
Data were collected for various PC and PC/ABS formulations.
Calculated emission factors are reported in ppm (wt/wt).

Conclusions:

The developed emission factors are applicable to similar PC processing operations.
Processors can use these factors to estimate emission quantities from their operations.
This research contributes to better environmental stewardship in polymer manufacturing.