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Yang X, Pei XL, Xu JJ, Yang ZP, Gong W, Zhong JC. Influence of temperature distribution on the foaming quality of foamed polypropylene composites. E-POLYMERS 2023. [DOI: 10.1515/epoly-2022-8093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Abstract
The foamed polypropylene (PP) composites were prepared by injection molding process. Fourier’s law and software were used to calculate and simulate the internal temperature distribution of PP composites, respectively, and the influence of the temperature distribution on the foaming quality of foamed PP composites was further analyzed. The result showed that the calculative and simulated results of temperature distribution in different thermal transfer directions had great reproducibility. In different isothermal planes, the temperature from the nozzle to the dynamic mold gradually decreased. The isothermal plane with a temperature of 370.36 K had a better foaming quality, average diameter of cell and cell density were 28.46 µm and 3.7 × 1010 cells·cm−3, respectively. In different regions of the same isothermal plane, the temperature gradually decreased from the center to the edge. The foaming quality in the region (c) at a temperature of 335.86 K was ideal, and the average diameter of cell and the cell density were 26.5 µm and 2.39 × 1010 cells·cm−3, respectively. This work could provide prediction for improving the foaming quality of foamed polyolefin composites.
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Affiliation(s)
- Xin Yang
- School of Materials and Architectural Engineering, Guizhou Normal University , Guiyang 550025 , China
| | - Xiang-lin Pei
- School of Materials and Architectural Engineering, Guizhou Normal University , Guiyang 550025 , China
| | - Jia-jie Xu
- School of Mechanical and Electrical Engineering, Guizhou Normal University , Guiyang 550025 , China
| | - Zhi-peng Yang
- School of Mechanical and Electrical Engineering, Guizhou Normal University , Guiyang 550025 , China
| | - Wei Gong
- School of Materials and Architectural Engineering, Guizhou Normal University , Guiyang 550025 , China
- National Engineering Research Center for Compounding and Modification of Polymer Materials , Guiyang 550025 , China
- School of Mechanical and Electrical Engineering, Guizhou Normal University , Guiyang 550025 , China
| | - Jin-cheng Zhong
- School of Materials and Architectural Engineering, Guizhou Normal University , Guiyang 550025 , China
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Dippold M, Ruckdäschel H. Influence of pressure-induced temperature drop on the foaming behavior of amorphous polylactide (PLA) during autoclave foaming with supercritical CO2. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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