A novel DOPO-g-KH550 modification wood fibers and its effects on the properties of composite phenolic foams

• Autorzy: Ma Y. , Geng X. , Zhang X. , Wang C. , Chu F.

Identyfikatory

DOI

10.2478/pjct-2018-0022

• Języki publikacji: EN

Abstrakty

EN

A novel 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) graft γ-amino propyl triethoxy silane (KH550) was synthesized and introduced on the surface of wood fi ber. Finally DOPO-g-KH550 treated wood fi ber (DKTWF) was used to prepare DKTWF composite phenolic foams (DKTWFCPF). The structures of DOPO-g- KH550 was acknowledged by Fourier transform infrared (FT-IR) and nuclear magnetic resonance (¹ H-NMR). The structures of DKTWF were confirmed by FT-IR. Compared with wood fi ber, the diffraction peaks’ position was basically unchanged, but the crystallinity was slightly increased and thermal stability were dramatically improved, T_5%  and T_max  increased by 21.9° and 36.1° respectively. But the char yield (800°) was slightly reduced. With the dosage of DKWF, there were different degrees of improvement including the mechanical properties, flame retardancy and microstructure of DKTWFCPF. Comprehensive analysis, the interfacial compatibility was signifi cantly improved between DKTWF and phenolic resin, and the suitable content of DKTWF was 4%.

Słowa kluczowe

EN

DOPO; Wood Fiber; Γ-amino propyl triethoxy silane; composites; characterization

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2018
• Tom: Vol. 20, nr 2
• Strony: 47--53
• Opis fizyczny: Bibliogr. 46 poz., rys., tab.

Twórcy

autor

Ma Y.

• Nanjing Forestry University, College of Materials Science and Engineering, Nanjing 210037;

autor

Geng X.

• Nanjing Forestry University, College of Materials Science and Engineering, Nanjing 210037;

autor

Zhang X.

• Nanjing Forestry University, College of Materials Science and Engineering, Nanjing 210037;

autor

Wang C.

• Institute of Chemical Industry of Forestry Products, CAF, Jiangsu Province, Nanjing 210042, China

autor

Chu F.

• Chinese Academy of Forestry, Beijing 100091, China

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).