Kinetics of the thermal degradation mechanisms in urea-formaldehyde cellulose composites filled with zinc particles

被引：11

作者：

Arshad, Muhammad Azeem ^{[1
]}

Maaroufi, AbdelKrim ^{[1
]}

Benavente, Rosario ^{[2
]}

Pinto, Gabriel ^{[3
]}

机构：

[1] Univ Mohammed 5, Dept Chem, Lab Composite Mat Polymers & Environm, Fac Sci, Ibn Batouta Ave,POB 1014, Rabat, Morocco

[2] ICTP, Juan de la Cierva 3, Madrid 28006, Spain

[3] Univ Politecn Madrid, ETSI Ind, Dept Ingn Quim Ind & Medio Ambiente, E-28006 Madrid, Spain

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2017年 / 28卷 / 16期

关键词：

JOHNSON-MEHL-AVRAMI; TEMPERATURE; STABILITY; MODELS;

D O I：

10.1007/s10854-017-6991-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper reports a study on the structural characterization, thermal stability, and thermal degradation kinetics of urea-formaldehyde cellulose (UFC) composites filled with zinc particles. Structural characterization of UFC/Zn composites carried out by SEM, XRD and FTIR analyses reveals that the composites are fairly homogenous, and the interactions between UFC and zinc in the composites are physical in nature. Afterwards, measurements of inherent thermal stabilities, probing reaction complexity, and thermal degradation kinetics of UFC/Zn composites have been carried out. The integral procedure decompositions temperature elucidates significantly higher thermal stabilities of UFC/Zn composites. Isoconversional kinetic analysis suggests multi-step reaction pathways of UFC/Zn composites in terms of the substantial variations in their activation energies with the reaction advancement. Advanced reaction model determination methodology with the help of an innovative kinetic function F(alpha, T) reveals that the thermal degradation of UFC goes to completion by following complicated multi-step nucleation/growth mechanisms. A detailed account of the mechanistic information regarding to the thermal degradation processes taking place in UFC/Zn composites is given and discussed in the present study.

引用

页码：11832 / 11845

页数：14

共 51 条

[1]

Akahira T., 1971, RES REPORT CHIBA I T, V16, P22

[2]

[Anonymous], 1998, SYSTEMATIC APPROACH

[3]

[Anonymous], 2015, ISOCONVERSIONAL KINE, DOI [DOI 10.1007/978-3-319-14175-6, 10.1007/978-3-319-14175-6]

[4] Sol-gel preparation and properties of interpenetrating, encapsulating and blend silica-based urea-formaldehyde hybrid composite materials [J].

Arafa, IM ;

Fares, MM ;

Barham, AS .

EUROPEAN POLYMER JOURNAL, 2004, 40 (07) :1477-1487

[5] Heterogeneous Catalyst Deactivation and Regeneration: A Review [J].

Argyle, Morris D. ;

Bartholomew, Calvin H. .

CATALYSTS, 2015, 5 (01) :145-269

[6] Morphology, thermal stability and thermal degradation kinetics of cellulose-modified urea-formaldehyde resin [J].

Arshad, M. A. ;

Maaroufi, A. ;

Pinto, G. ;

El-Barkany, S. ;

Elidrissi, A. .

BULLETIN OF MATERIALS SCIENCE, 2016, 39 (06) :1609-1618

[7]

Arshad M.A., 2017, J APP POLYM SCI, V134, P1

[8]

Arshad M.A., 2015, SOC PLAST ENG, DOI [10. 2417/spepro. 006183, DOI 10.2417/SPEPRO.006183]

[9]

Arshad MA, 2016, POLYM COMPOSITE, V37, P5

[10]

Arshad MA, 2014, J MAT ENV SCI, V5, P1342

← 1 2 3 4 5 6 →