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Intrinsic viscosity testing is an extremely important part of polymer quality control. Manual determination is accurate but time-consuming, and can lead to significant differences depending on different users. Since then, the advent of digital intrinsic viscosity meter has greatly changed the status quo of intrinsic viscosity testing in terms of measurement accuracy and management methods. As a nationally recognized high-tech enterprise with over 80 independent intellectual property rights, Hangzhou Zhongwang Technology Co., Ltd. Provides a digital viscometry measurement method.
Superior Measurement Accuracy and Repeatability
Quality control laboratories need to know with high certainty how molecules differ and whether an error during synthesis means all your products are out of spec. While manual measurement of Intrinsic Viscosity can give good enough readings there’s something digital measurement does exceptionally well which human measurement simply can’t compete with. Reliability and Repeatability.
Using a high precision temperature control unit to regulate the constant temperature water bath, precise automated liquid level sensing and high speed photoelectric timing sensors. Together these remove human variation. Precision Temperature Control Systems maintain constancy up to 0.01 °C. Intrinsic Viscosity values are extremely temperature dependent and even small deviations can mean huge errors in calculated Molecular Weight.
Automated Level Sensing and Photoelectric timing The motion of the liquid as it falls is sensed more accurately by photo electric sensors and controlled automatically rather than by your eye looking for the passage of the liquid level across a mark. This allows more reliable data in quality control laboratories and can lead to a significant reduction in the amount of repeating measurements required.
Automated Workflow and Increased Laboratory Productivity
The task of manually determining intrinsic viscosity calls for dedicated operator skills for the process that includes preparing sample to a solution state in specified solvent; dilution of the solution; cleaning and drying the viscometer tubes for the test. It involves manual input for almost all steps which becomes time consuming and limits the efficiency in large scale laboratory operations for better process output. However, a digital intrinsic viscosity meter helps to carry out process that are more efficient.
In fact most of the digital intrinsic viscosity instruments include facilities for automating the most part of the preparation of samples like preparation by means of dilution, filtration and dissolution by applying set time and temperature.
Once the sample preparation gets over, the sample is ready for loading. The process of measurement gets done with manual loading. The instruments automatically record the readings & can provide in built provision for washing down the test vessels in between the measurements. Moreover some of the advanced digital intrinsic viscometers carry out measurement on multi samples simultaneously making it possible to save precious time and to increase the productivity significantly.
Advanced Data Management and Traceability
Manual measurements need expertise When intrinsically determining viscosity manually, every aspect including preparation and maintenance must be carried out diligently. Sample preparation – even washing and drying of viscometer tubes – needs careful hand work. This can result in a slow process in high demand labs that leads to significant throughput limitations.
Digital intrinsic viscosity measuring instruments Digital instruments take over most of the manual tasks Many digital intrinsic viscosity measuring devices support many-handed automation of Sample Preparation - for instance with the complete automated Sample dissolution, dilution and Filtration.
They independently carry out the measurements of your samples and the logging of the measurement values, as well as providing efficient cleaning functions for the subsequent Sample measurement. They often also process multiple samples simultaneously. High-throughput measurement capability Even high requirements in a high-demand working process do not represent a challenge, if the multi sample devices allow the simultaneous processing of several samples batches in parallel measurement. In this case, time-consuming Manual measurements are the time. This increases Laboratory efficiency.
Enhanced User Safety and Comfort
TraditionalIntrinsicViscosityMethodsTypicallyInvolveworkingwithpotentiallyhazardoussolvents. Commonly used solvents are often phenol based blends (for polymer analysis), but other solvents such as tetrachloroethane, and other organic reagents can be dangerous to work with, particularly over long periods. A digital intrinsic viscometer is much safer because it allows for less manual solvent and sample interaction.
Often many automated viscometers operate with a fully sealed system of liquid and the flow never comes into contact with the atmosphere until a measurement is complete thus preventing spills and emissions.
They are often auto cleaning thus minimizing exposure to cleaning agents. Digital viscometer models also have ergonomic design benefits, eliminating repetitive actions, no timed flows by an operator, less sample transfer and no manual data logging by hand. The benefits of a Digital Viscometer multiple so why not find out more?
Summary
Compared with traditional hand operated measurement, Digital intrinsic viscosity meter provides such numerous benefits as higher accuracy and repeatability, auto work process, improved data management, more safety and so on to realize higher reliability of lab work , more lab productivity, more regulatory compliant. Hangzhou Zhongwang Technology Co., Ltd. is developing more and more digital intrinsic viscosity meters for best lab practice of polymer quality test. Call for details.