Off-gassing, the release of volatile components from materials into the air, is a critical consideration for many industries. Often recognized by the persistent chemical smell of newly manufactured products, off-gassing can result from multiple mechanisms, including:
- Physical Evaporation: Volatiles such as residual solvents, impurities, oligomers, or additives trapped within the polymer escape over time.
- Surface Solvent Evaporation: Similar to the drying of paint or varnish, solvents evaporate from the external surface of the material.
- Slow Chemical Reactions: Processes like ongoing poly-condensation or curing within the polymer can lead to gradual off-gassing.
- Surface Reactions: Hydrolysis, oxidation, or biodegradation of the polymer surface in contact with air can contribute to emissions.
Testing Services for Polymer Off-Gassing
LCS Laboratory offers specialized testing to measure the off-gassing rate of polymers under various controlled conditions. Our services help identify and quantify the release of vapours, enabling manufacturers to better understand the chemical behaviour of their materials.
Key Testing Options
- Off-Gassing Screening
- Measure Total Volatile Organic Compounds (TVOC) using a PID detector for a quick overview of emissions.
- Open Characterization
- An add-on to the TVOC test that provides a broader profile of off-gassing products.
- In-Depth Off-Gassing Study
- Focuses on the monitoring of individual organic and inorganic compounds emitted by polymers for precise characterization.
Test Conditions and Parameters
- Test Durations: Choose from 6, 30, or 55-hour tests.
- Temperature Control: Normal or elevated temperatures to simulate real-world conditions.
- Humidity Variability: Relative humidity can be adjusted from 0% to ambient levels, up to 80%.
- Sample Form: Materials can be tested as finished products or as dust.
- Vapour Analysis: Emissions can be analysed as total vapours or broken down into individual chemical components. If unknown, we provide identification services for emitted compounds.
Benefits of Choosing LCS Laboratory
With over 20 years of experience in analytical chemistry and air testing, our expertise ensures accurate and actionable results. Whether you need a quick screening or a comprehensive kinetic study, we tailor our testing to suit your unique requirements.
Contact Us to Explore Your Project
LCS Laboratory is here to help you understand the off-gassing properties of your materials. Email us today to discuss your project and select the best testing approach for your product. Protect your processes and ensure compliance with industry standards through precise and insightful analysis.
