Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processes
Few studies have examined the process dependence of the pressure–specific volume–temperature (pvT) behavior of polymers. Especially, the specific volume variation during heating is often ignored, but for certain processing techniques such as plastic welding and additive manufacturing, special consid...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-11-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127520306456 |
| _version_ | 1818256613008474112 |
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| author | Jian Wang Christian Hopmann Malte Röbig Tobias Hohlweck Jonathan Alms |
| author_facet | Jian Wang Christian Hopmann Malte Röbig Tobias Hohlweck Jonathan Alms |
| author_sort | Jian Wang |
| collection | DOAJ |
| description | Few studies have examined the process dependence of the pressure–specific volume–temperature (pvT) behavior of polymers. Especially, the specific volume variation during heating is often ignored, but for certain processing techniques such as plastic welding and additive manufacturing, special consideration should be given. In this study, a new pvT model was proposed to determine the specific volume evolution of polymers during cooling and heating processes. The process dependence of pvT behavior of polymers was discussed in theory, and the influences of starting temperature and cooling/heating rates were considered in the modeling. The pvT behavior of a semi-crystalline polymer, polypropylene (PP), was measured. Mathematical model parameters were determined through the fitting of the experimental pvT data. The fitted results were in good agreement with the experimental data, which showed that the proposed model is accurate and effective. The R2 value of 99.82% and the average absolute percent deviation of 0.21% were obtained. The process dependent pvT model is simple and has broad application prospects in polymer physics and polymer processing. |
| first_indexed | 2024-12-12T17:30:32Z |
| format | Article |
| id | doaj.art-90980e8ab1aa4b159e61e7271e37cffd |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-12T17:30:32Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-90980e8ab1aa4b159e61e7271e37cffd2022-12-22T00:17:24ZengElsevierMaterials & Design0264-12752020-11-01196109110Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processesJian Wang0Christian Hopmann1Malte Röbig2Tobias Hohlweck3Jonathan Alms4State Key Laboratory of Organic-Inorganic Composites, College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Institute for Plastics Processing (IKV), RWTH Aachen University, Aachen 52074, Germany; Corresponding author at: 15 Beisanhuan East Road, Chaoyang, Beijing 100029, China.Institute for Plastics Processing (IKV), RWTH Aachen University, Aachen 52074, GermanyInstitute for Plastics Processing (IKV), RWTH Aachen University, Aachen 52074, GermanyInstitute for Plastics Processing (IKV), RWTH Aachen University, Aachen 52074, GermanyInstitute for Plastics Processing (IKV), RWTH Aachen University, Aachen 52074, GermanyFew studies have examined the process dependence of the pressure–specific volume–temperature (pvT) behavior of polymers. Especially, the specific volume variation during heating is often ignored, but for certain processing techniques such as plastic welding and additive manufacturing, special consideration should be given. In this study, a new pvT model was proposed to determine the specific volume evolution of polymers during cooling and heating processes. The process dependence of pvT behavior of polymers was discussed in theory, and the influences of starting temperature and cooling/heating rates were considered in the modeling. The pvT behavior of a semi-crystalline polymer, polypropylene (PP), was measured. Mathematical model parameters were determined through the fitting of the experimental pvT data. The fitted results were in good agreement with the experimental data, which showed that the proposed model is accurate and effective. The R2 value of 99.82% and the average absolute percent deviation of 0.21% were obtained. The process dependent pvT model is simple and has broad application prospects in polymer physics and polymer processing.http://www.sciencedirect.com/science/article/pii/S0264127520306456pvTSpecific volumePolymerEquation of stateInjection molding |
| spellingShingle | Jian Wang Christian Hopmann Malte Röbig Tobias Hohlweck Jonathan Alms Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processes Materials & Design pvT Specific volume Polymer Equation of state Injection molding |
| title | Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processes |
| title_full | Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processes |
| title_fullStr | Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processes |
| title_full_unstemmed | Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processes |
| title_short | Modeling of pressure-specific volume-temperature behavior of polymers considering the dependence of cooling and heating processes |
| title_sort | modeling of pressure specific volume temperature behavior of polymers considering the dependence of cooling and heating processes |
| topic | pvT Specific volume Polymer Equation of state Injection molding |
| url | http://www.sciencedirect.com/science/article/pii/S0264127520306456 |
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