MATERIALS TESTING & QC | MACHINERY


The core of the system is an integrated, contactless IR pyrometer, which measures and assigns the surface temperature of each specimen and can operate continuously during the complete exposure.


Mobile sorting BASF Thailand has presented a mobile NIR spectroscopy device – from its subsidiary Trinamix – to the Plastic Institute of Thailand, during a workshop on mechanical recycling and sorting of plastics. The partners say this will help to advance plastics circularity in Thailand. The device accurately identifies a broad range of plastic types on-site, optimising the recycling process by ensuring high-quality sorting from the outset. The institute provides knowledge, R&D and


training to the local plastics industry. Integrating the Trinamix device will help it improve plastic sorting and support local recycling projects by enhancing efficiency. “Through this initiative, we can advance the


circular economy in Thailand, aligning with our goal of achieving net zero emissions by 2050 alongside our partners,” said Panuwat Triyangkulsri, acting president of the Plastic Institute of Thailand.


Foam solution Promix Solutions says that its Visco-P inline viscometer is gaining increasing interest from extruders of foams. It is particularly relevant for companies


producing light foams – such as XPS, XPE, XPP and XPET – where line productivity, foam density and the mechanical properties of the final products are critical. From the heating phase of the line, until


standard production conditions are reached, the operator uses the Visco-P in a similar way to how an explorer in the forest traces a path with a map and a compass. The displayed graph of the melt viscosity shows, in real time, the effects of every small change in the process parameters – from temperature and throughput adjustments to variations in the amount of blowing agent and raw material composition. The Visco-P, in combination with a P1 cooling


mixer, can improve the process. The P1 cooling mixer can homogenise and lower the melt temperature. With the Visco-P, this setup allows precise adjustment and control of melt viscosity before the polymer enters the extrusion die. This increases output, improves cell structure and can lower foam density. It also enables safe processing


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Left: Nordson says FilmPro gauge offers accurate thickness measurement of film and sheet


of cheaper, lower-viscosity raw materials – which can reduce production costs.


Profile control Nordson Measurement & Control (formerly NDC Technologies) says its FilmPro gauge can accurately measure the thickness of film and sheet. The infrared gauge is engineered to deliver


accurate, repeatable, high-resolution thickness measurements for film, sheet and coated products. It is designed to provide reliable measurements under varying conditions, including fluctuating light, temperature and humidity. FilmPro does not require special radiation


licenses, protective guarding or interlocked safety gates. Its calibration techniques ensure measurement accuracy, and it can measure various materials including clear, pigmented, voided, pearlized and coloured films (including black). It can measure the true thickness of voided, microporous, or breathable films, as well as their weight and density. It can also measure barrier materials such as nylon, EVOH and PVDC. Another benefit is its ability to measure thin,


clear films – which often generate reflected light and create a phenomenon called Optical Interference (OI), which can affect the accuracy of infrared film measurements. To overcome this, FilmPro includes an optional Fringe Suppression Optics (FSO) module, tailored for thin films. This module features a new, more efficient optical system that is unaffected by changes in film thickness, scanner misalignment or run-out.


Melt testing ZwickRoell says its new Mflow extrusion plastome- ter sets new standards in melt flow testing in accordance with ASTM D1238 and ISO 1133-1/-2. In its base version, it performs melt mass flow rate (MFR) and melt volume flow rate (MVR) – using


January/February 2025 | FILM & SHEET EXTRUSION 33


IMAGE: NORDSON


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