Thermoplastic heating produces toxic suspended solids and poses health risks
recently, researchers at the University of Illinois and technology in the United States and the National Institute of Applied Sciences in Lyon, France, found that 3D printers using fused deposition molding (FDM) technology may pose health risks. Finish the experiment that is usually required
their research, published in the Journal of atmospheric environment, pointed out that "the process of heating thermoplastic and spraying it through the nozzle will produce a large number of toxic suspended substances."
"at present, fdm3d printers sold on the market are not equipped with extraction ventilation devices or filters, so it is necessary to be extra careful when using them in indoor environments or unventilated places."
researchers tested five printers with the same convergence trend in the development of completely bio based industries at the 3D printer experience center in Chicago. Two use polylactic acid and three use ABS ink
experiments have proved that fdm3d printers have potential health risks
researchers admit that the scale of the experiment and limited research are safe to use. Let me simply say that a few minutes (nearly 2.5 hours) is not enough to draw an absolute conclusion. However, the test found that the number of ultrafine particles released by the five 3D printers is amazing, and if inhaled by the human body, it will pose a serious threat to human health
the report points out that in animal tests, the thermal decomposition substances of ABS have been proved to have toxic effects on rats and mice
researchers conducted three experiments. In the first experiment, two printers were turned on and polylactic acid was used for low-temperature printing. The results showed that at least 20billion ultra-fine particles were released per minute. In the second experiment, two printers used polylactic acid and the other three used ABS. As a result, the number of ultrafine particles released per minute increased sharply. In the third experiment, three printers used ABS to print, and the release of ultrafine particles per minute was also surprising
the test results show that when only two printers with polylactic acid as raw material are turned on, the ultrafine particles in the air will increase three times. When five machines work at the same time, the ultrafine particles increase nearly 15 times. Ultrafine particles can be deposited in the lungs and directly absorbed into the blood. When the concentration is high, it may cause lung disease, blood and nervous system diseases and even death
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