Influence of injection molding process parameters on the mechanical properties of polypropylene and polyethylene parts
Апстракт
Polypropylene (PP) and high-density polyethylene (HDPE) are the most common polymers in modern industrial plastic part production. Both materials can be easily shaped through injection molding, which is one of the most widespread processing methods for polymer materials. When manufacturing parts from PP and HDPE, it is necessary to achieve the required mechanical characteristics that depend on processing parameters (melt temperature, tool temperature, cooling time, etc.). This paper presents research on the impact of tool temperature on the tensile strength of injection-molded test specimens made from PP and HDPE. Since both materials contain amorphous and crystalline phases, changes in the ratio of phases are possible depending on the tool temperature, which leads to mechanical properties (tensile strength) changes. In the experimental assessment of tensile strength for polypropylene (PP) and high-density polyethylene (HDPE) specimens, conducted at varying tool temperatures (20°C, 50°...C, and 80°C), notable disparities in tensile strength values were observed. These variations were attributed to alterations in the crystalline phase content within the materials, instigated by disparate cooling rates resulting from utilizing distinct tool temperatures.
Кључне речи:
Polypropylene / high-density polyethylene / injection molding / mechanical characteristics / tensile testing / tensile strengthИзвор:
39th International Conference on Production Engineering of Serbia, 2023, 295-300Издавач:
- Society of Production Engineering
- University of Novi Sad, faculty of Technical Sciences
Финансирање / пројекти:
- Развој нове генерације домаћих обрадних система (RS-MESTD-Technological Development (TD or TR)-35022)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Stefanović, Ljiljana AU - Movrin, Dejan AU - Milutinović, Mladomir AU - Popović, Mihajlo AU - Pjević, Miloš PY - 2023 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7313 AB - Polypropylene (PP) and high-density polyethylene (HDPE) are the most common polymers in modern industrial plastic part production. Both materials can be easily shaped through injection molding, which is one of the most widespread processing methods for polymer materials. When manufacturing parts from PP and HDPE, it is necessary to achieve the required mechanical characteristics that depend on processing parameters (melt temperature, tool temperature, cooling time, etc.). This paper presents research on the impact of tool temperature on the tensile strength of injection-molded test specimens made from PP and HDPE. Since both materials contain amorphous and crystalline phases, changes in the ratio of phases are possible depending on the tool temperature, which leads to mechanical properties (tensile strength) changes. In the experimental assessment of tensile strength for polypropylene (PP) and high-density polyethylene (HDPE) specimens, conducted at varying tool temperatures (20°C, 50°C, and 80°C), notable disparities in tensile strength values were observed. These variations were attributed to alterations in the crystalline phase content within the materials, instigated by disparate cooling rates resulting from utilizing distinct tool temperatures. PB - Society of Production Engineering PB - University of Novi Sad, faculty of Technical Sciences C3 - 39th International Conference on Production Engineering of Serbia T1 - Influence of injection molding process parameters on the mechanical properties of polypropylene and polyethylene parts EP - 300 SP - 295 UR - https://hdl.handle.net/21.15107/rcub_machinery_7313 ER -
@conference{ author = "Stefanović, Ljiljana and Movrin, Dejan and Milutinović, Mladomir and Popović, Mihajlo and Pjević, Miloš", year = "2023", abstract = "Polypropylene (PP) and high-density polyethylene (HDPE) are the most common polymers in modern industrial plastic part production. Both materials can be easily shaped through injection molding, which is one of the most widespread processing methods for polymer materials. When manufacturing parts from PP and HDPE, it is necessary to achieve the required mechanical characteristics that depend on processing parameters (melt temperature, tool temperature, cooling time, etc.). This paper presents research on the impact of tool temperature on the tensile strength of injection-molded test specimens made from PP and HDPE. Since both materials contain amorphous and crystalline phases, changes in the ratio of phases are possible depending on the tool temperature, which leads to mechanical properties (tensile strength) changes. In the experimental assessment of tensile strength for polypropylene (PP) and high-density polyethylene (HDPE) specimens, conducted at varying tool temperatures (20°C, 50°C, and 80°C), notable disparities in tensile strength values were observed. These variations were attributed to alterations in the crystalline phase content within the materials, instigated by disparate cooling rates resulting from utilizing distinct tool temperatures.", publisher = "Society of Production Engineering, University of Novi Sad, faculty of Technical Sciences", journal = "39th International Conference on Production Engineering of Serbia", title = "Influence of injection molding process parameters on the mechanical properties of polypropylene and polyethylene parts", pages = "300-295", url = "https://hdl.handle.net/21.15107/rcub_machinery_7313" }
Stefanović, L., Movrin, D., Milutinović, M., Popović, M.,& Pjević, M.. (2023). Influence of injection molding process parameters on the mechanical properties of polypropylene and polyethylene parts. in 39th International Conference on Production Engineering of Serbia Society of Production Engineering., 295-300. https://hdl.handle.net/21.15107/rcub_machinery_7313
Stefanović L, Movrin D, Milutinović M, Popović M, Pjević M. Influence of injection molding process parameters on the mechanical properties of polypropylene and polyethylene parts. in 39th International Conference on Production Engineering of Serbia. 2023;:295-300. https://hdl.handle.net/21.15107/rcub_machinery_7313 .
Stefanović, Ljiljana, Movrin, Dejan, Milutinović, Mladomir, Popović, Mihajlo, Pjević, Miloš, "Influence of injection molding process parameters on the mechanical properties of polypropylene and polyethylene parts" in 39th International Conference on Production Engineering of Serbia (2023):295-300, https://hdl.handle.net/21.15107/rcub_machinery_7313 .