Influence of Organoclay on the Flame Retardancy and Thermal Insulation Property of Expandable Graphite/Polyurethane Foam

Autor: Nhung Hac Thi, Duy Linh Pham, Nguyen Thi Hanh, Ho Thi Oanh, Thi Hai Yen Duong, Thanh Nhan Nguyen, Nguyen Duc Tuyen, Dinh Long Phan, Ha Thu Trinh, Ha Tran Nguyen, Tung Ngo Trinh, Mai Ha Hoang
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Chemistry, Vol 2019 (2019)
Druh dokumentu: article
ISSN: 2090-9063
2090-9071
DOI: 10.1155/2019/4794106
Popis: The rigid polyurethane foams (RPUFs) filled with organoclay cloisite 20A and expandable graphite (EG) were prepared by the one-step expanding foam method. Flame behavior, mechanical properties, and thermal conductivity of the composites were investigated. The vertical burning test (UL-94V) and limiting oxygen index (LOI) showed that the flame retardancy was increased proportionally with the content of EG in PU composite. However, the presence of EG filler impaired the thermal insulation and the compressive strength of the composite. In this report, we proved that organoclay could improve the compressive strength, thermal insulation, and flame retardancy of EG/polyurethane composites. This work can contribute to the development of environment-friendly flame-retardant products for green growth.
Databáze: Directory of Open Access Journals
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