Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
Thermal behavior of polymers during intermitent heating measured by thermocouple and Arduino® microcontroller
Submission Author:
Felipe dos Anjos Rodrigues Campos , MG
Co-Authors:
Felipe dos Anjos Rodrigues Campos, Kenji Fabiano Ávila Okada, José Ricardo Ferreira Oliveira, Leonardo Rosa Ribeiro da Silva
Presenter: Felipe dos Anjos Rodrigues Campos
doi://10.26678/ABCM.ENCIT2020.CIT20-0576
Abstract
The combination of relatively low production costs and a versatility make polymers one of the most used classes of engineering materials. The complexity of their chemical bounds, however, make the thermomechanical processing of these materials a challenge, since thermal flux from manufacturing might significantly alter their properties. In this paper was evaluated the use of thermocouple with Arduino® compatible hardware for measurement and control of an intermittent heating system for processing of Nylon-6 and polycarbonate thermoplastics. A 2² factorial design was created for using K-type thermocouple for the two polymers at two different surface finishes obtained by sanding with mesh #80 and #600 abrasives. The results indicate that the Arduino interface has satisfactory processing capacity for monitoring heating cycles and temperature logging, making it possible to know how temperature variated and at what level it stabilized for the heating conditions presented. The difference in material specific heat capacity and thermal conductivity will affect the observed temperature profile. Roughness might present a considerable effect on the material heating since it is directly linked to the heat exchange area of the process.
Keywords
Thermoplastics, thermocouple, Arduino® microcontroller, intermittent heating, MAX31855 module
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