Polymeric Foams

Ruiz‐Herrero, J.L.; Estravís, Sergio; Rodríguez‐Pérez, Miguel Ángel

doi:10.1002/0471238961.06150113192108.a01.pub2

Cited by 1 publication

(1 citation statement)

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“…The samples with a thickness of 6 mm and the content of blowing agents 1 and 3 wt% have a higher cell density in the core of the molding than samples with a thickness of 8.4 mm. The cell density in the section of the molded part is closely related to their size in a given layer -the lower the pore density, the larger their size [11]. The 6 mm thick sample foamed with the use of 1 wt% of CBA indicated smaller pores in the noticed core zone than the corresponding 8.4 mm thick sample.…”

Section: Resultsmentioning

confidence: 92%

Numerical analysis of chemically foamed thick-walled PA66 GF30 moldings

2021

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The paper presents a numerical analysis of thick-walled PA66 GF30 moldings with the addition of a chemical blowing agent with a content of 1-3 wt%, and the obtained results were compared with the real object. Computer simulations were performed using Moldex3D® software. Based on the numerical analysis, it was found that regardless of the dose of the blowing agent used, the largest pores were place in the core of the sample. Moreover, it was found that the size of the pores depends on their number in the cross-section of moldings. Compositions containing a higher cross-sectional pore density were characterized by smaller pore sizes. The results of the computer simulation also showed that increasing the blowing agent dose above 2 wt% does not significantly affect the size of the pores in the structure. The experimentally determined pore size of the composition containing 3 wt% chemical blowing agent slightly differs from the pore size obtained based on numerical analysis.

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Section: Resultsmentioning

confidence: 92%