DOI: 10.1002/app.25933. Dependence of flame‐retardant properties on density of expandable graphite filled rigid polyurethane foam

Dependence of flame‐retardant properties on density of expandable graphite filled rigid polyurethane foam

10.1002/app.25933

Crossref journal-article

Wiley

Journal of Applied Polymer Science (311)

Abstract

AbstractDifferent density rigid polyurethane foams (RPUF) filled with various expandable graphite loadings were fabricated by cast molding. The flame retardant properties of these composites were assessed by limiting oxygen index and horizontal and vertical burning tests. The results showed that the flame retardant efficiency got better with increase in the foam density at the fixed EG weight percent or with increase in the EG weight percent at the fixed foam density. After burning, the low density (0.065 g/cm3) pure burned RPUF produced the highly collapsed and carbonized material, while the high density (0.510 g/cm3) pure RPUF had little change in size and had reduced destruction of the material. Moreover, the scanning electronic microscope (SEM) observation showed that the higher density EG/RPUF composites had a more compact outer layer (burned layer) after burned, in which more wormlike materials composed of expanded graphite particles appeared. In addition, higher foam density led to less plastic deformation in the interface layer between the burned and the inside layers. These results indicated that a weight percent of a flame retardant additive that achieves satisfactory flame retardancy for a certain density foam cannot effectively be applied for another density foam. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007

Bibliography

Bian, X., Tang, J., Li, Z., Lu, Z., & Lu, A. (2007). Dependence of flameâretardant properties on density of expandable graphite filled rigid polyurethane foam. Journal of Applied Polymer Science, 104(5), 3347â3355. Portico.

Authors 5

Xiang‐Cheng Bian (first)
Jian‐Hua Tang (additional)
Zhong‐Ming Li (additional)
Zhong‐Yuan Lu (additional)
Ai Lu (additional)

References 28 Referenced 120

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{'key': 'e_1_2_5_13_2', 'first-page': '891', 'volume': '19', 'author': 'Park H. S.', 'year': '1995', 'journal-title': 'Polymer (Korea)'} / Polymer (Korea) by Park H. S. (1995)
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Dates

Type	When
Created	18 years, 5 months ago (March 8, 2007, 7:07 p.m.)
Deposited	1 year, 9 months ago (Oct. 31, 2023, 1:32 a.m.)
Indexed	1 week, 2 days ago (Aug. 21, 2025, 2:15 p.m.)
Issued	18 years, 5 months ago (March 8, 2007)
Published	18 years, 5 months ago (March 8, 2007)
Published Online	18 years, 5 months ago (March 8, 2007)
Published Print	18 years, 2 months ago (June 5, 2007)

Funders 0

None

BibTeX

@article{Bian_2007, title={Dependence of flame‐retardant properties on density of expandable graphite filled rigid polyurethane foam}, volume={104}, ISSN={1097-4628}, url={http://dx.doi.org/10.1002/app.25933}, DOI={10.1002/app.25933}, number={5}, journal={Journal of Applied Polymer Science}, publisher={Wiley}, author={Bian, Xiang‐Cheng and Tang, Jian‐Hua and Li, Zhong‐Ming and Lu, Zhong‐Yuan and Lu, Ai}, year={2007}, month=mar, pages={3347–3355} }

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