In-line optical and ultrasonic viscometry solutions for PET molding
Innovative optical and ultrasonic in-line sensing solutions enable real-time viscosity monitoring during PET injection molding, enhancing quality control and efficiency, especially in recycled PET applications.
Overview
The proposed in-line viscometry solutions offer a transformative approach to monitoring viscosity in PET injection molding processes. By utilizing both optical and ultrasonic methods, these solutions provide real-time, non-intrusive monitoring that can withstand the demanding conditions of high-temperature and high-pressure environments typical of PET molding. This innovation is particularly beneficial for quality control, offering the ability to correlate measurements with molecular weight and intrinsic viscosity, thereby ensuring consistency, especially in recycled PET applications.
Technical specifications
Optical Solution:
- Non-intrusive sensing elements integrated within the nozzle
- Capable of tracking flow-related changes at high temperatures
- Sub-second response time
Ultrasonic Solution:
- Acoustic transducers capture time-resolved signatures
- Correlates acoustic data with viscosity behavior
- Designed to withstand harsh molding conditions
Both solutions are designed to operate without manual intervention, providing seamless integration into existing PET molding processes.
Technology readiness level
This technology is currently at TRL 4, indicating that the core components have been validated in laboratory environments. Future development plans include benchtop simulations and prototype testing under controlled injection-like conditions to refine the technology for in-process evaluation.
About New Mexico Institute of Mining and Technology
New Mexico Tech is a STEM-focused public research university in Socorro with an applied, field-scale research profile. Its Energetic Materials Research and Testing Center runs expansive test ranges adjacent to campus for research, evaluation, and training. The Petroleum Recovery Research Center and the New Mexico Bureau of Geology and Mineral Resources provide industry-facing labs, data, and services, while a co-op program links employers to student talent. Research is supported by competitive federal funding from agencies such as the National Science Foundation, Department of Energy, and Department of Defense. An Office of Innovation Commercialization and a university research park support IP, licensing, and startup formation.
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