Effect of γ-irradiation on the thermo-oxidative behavior of nano-silica based urea-formaldehyde hybrid composite with 4-chloro-3-nitro-2H-chromen-2-one

被引：9

作者：

Jovanovic, Vojislav ^{[1
]}

Samarzija-Jovanovic, Suzana ^{[1
]}

Dekic, Biljana ^{[1
]}

Dekic, Vidoslav ^{[1
]}

Konstaninovic, Sandra ^{[2
]}

Markovic, Gordana ^{[3
]}

Marinovic-Cincovic, Milena ^{[4
]}

机构：

[1] Univ Pristina, Fac Nat Sci & Math, Kosovska Mitrovica 28220, Serbia

[2] Tigar, Pirot 18300, Serbia

[3] Univ Nis, Fac Technol, Leskovac 16000, Serbia

[4] Univ Belgrade, Inst Nucl Sci Vinca, Belgrade 11000, Serbia

来源：

COMPOSITES PART B-ENGINEERING | 2013年 / 45卷 / 01期

关键词：

Hybrid; Nano-structures; Resins; Thermal analysis; gamma-Irradiation; THERMAL-DECOMPOSITION; FUNCTIONALIZED POLYBENZOXAZOLES; STABILITY; RADIATION; RESINS;

D O I：

10.1016/j.compositesb.2012.07.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two types of nano-silica based urea-formaldehyde (UF) hybrid composite materials with formaldehyde to urea (F/U) ratio (0.8) were synthesized without (UF + SiO2) and with coumarin (UF + SiO2 + 4-chloro-3-nitro-2H-chromen-2-one). Nano-silica based UF hybrid composites have been irradiated (50 kGy) and effect of gamma-irradiation was evaluated on the basis of thermo-oxidative behavior before and after irradiation. The thermo-oxidative behavior of materials was studied by non-isothermal thermo-gravimetric analysis (TG), differential thermo-gravimetry (DTG) and differential thermal analysis (DTA) supported by data from IR spectroscopy. After gamma-irradiation, the shift of temperature values for selected mass loss to a higher temperature indicates that thermo-oxidative stability of modified nano-silica based UF resin with coumarin 4-chloro-3-nitro-2H-chromen-2-one is increase. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：864 / 870

页数：7