Flame retardant effect of cellulose xanthate additive on semi-rigid polyurethane foam by hybrid application method

Guliyev R., TEKİN N., BORA M. Ö., Yagci Y. E.

POLYMER ENGINEERING AND SCIENCE, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1002/pen.27189
  • Dergi Adı: POLYMER ENGINEERING AND SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Kocaeli Üniversitesi Adresli: Evet

Özet

The use of high levels of additive-type flame-retardant (FR) adversely affects the foaming process and the mechanical properties of PUFs. LBL coating offers a solution to this problem but requires additional time. In this study, a hybrid application method combining additive and coating methods is proposed. In the hybrid application method, an FR containing anionic groups in its structure is added as an additive at the production stage at a level that does not affect the properties of the PU. After foaming the PU, the foam is dipped into the cationic FR solution and coated in a short time. In this study, the flame-retardant effect of cellulose xanthate (CX) and chitosan on PU foam was investigated. The effects of CX and chitosan on the flammability, thermal stability, and morphological properties of PU foam were evaluated using LOI, cone calorimetry, UL94, TGA, and SEM. According to the results of UL94 and LOI analyses, it was found that as the CX content increased to 6%, the complete combustion time increased from 30 to 90 s, and the LOI value increased from 17% to 19.7%. TGA results showed that the mass loss of PUF at 600 degrees C decreased from 95.5% to 76.4%.