Flame-retardant finishing of cotton fabrics using DOPO functionalized alkoxy- and amido alkoxysilane

被引：40

作者：

Ali, Wael ^{[1
,2
]}

Zilke, Olga ^{[1
]}

Danielsiek, Dominic ^{[1
]}

Salma, Alaa ^{[1
]}

Assfour, Bassem ^{[3
]}

Shabani, Valbone ^{[1
,2
]}

Caglar, Seden ^{[2
]}

Phan, Hung Minh ^{[1
]}

Kamps, Leonie ^{[1
]}

Wallmeier, Ruth ^{[1
]}

Feng, Ying ^{[2
]}

Textor, Torsten ^{[4
]}

Gutmann, Jochen S. ^{[1
,2
,5
]}

Mayer-Gall, Thomas ^{[1
,2
,5
]}

机构：

[1] Deutsch Textilforsch Zentrum Nord West gGmbH, Adlerstr 1, D-47798 Krefeld, Germany

[2] Univ Duisburg Essen, Inst Phys Chem, Univ Str 2, D-45117 Essen, Germany

[3] Atom Energy Commiss, Dept Chem, POB 6091, Damascus, Syria

[4] Reutlingen Univ, Texoversum Sch Text, Alteburgstr 150, D-72762 Reutlingen, Germany

[5] Ctr Nanointegrat Duisburg Essen CENIDE, Carl Benz Str 199, D-47048 Duisburg, Germany

来源：

CELLULOSE | 2023年 / 30卷 / 04期

关键词：

Flame retardant; DOPO; Sol-gel; Textile finishing; Semi-durable treatment; THERMAL-DECOMPOSITION; EPOXY-RESINS; SOL-GEL; PHOSPHORUS; CELLULOSE; DEGRADATION; COMPOSITES; STABILITY; MECHANISM; AGENT;

D O I：

10.1007/s10570-022-05033-3

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

In the present study, DOPO-based alkoxysilane (DOPO-ETES) and amido alkoxysilane (DOPO-AmdPTES) were synthesized by one-step and without by-products as halogen-free flame retardants. The flame retardants were applied on cotton fabric utilizing sol-gel method and pad-dry-cure finishing process. The flame retardancy, the thermal stability and the combustion ehaviour of treated cotton were evaluated by surface and bottom edge ignition flame test (according to EN ISO 15025), thermogravimetric analysis (TGA) and micro-scale combustion calorimeter (MCC). Unlike CO/DOPO-ETES sample, cotton treated with DOPO-AmdPTES nanosols exhibits self-extinguishing ehaviour with high char residue, an improvement of the LOI value and a significant reduction of the PHRR, HRC and THR compared to pristine cotton. Cotton finished with DOPO-AmdPTES reveals a semi-durability after ten laundering cycles keeping the flame-retardant properties unchanged. According to the results obtained from TGA-FTIR, Py-GC/MS and XPS, the major activity of flame retardant occurs in the condensed phase via catalytic induced char formation as physical barrier along with the activity in the gas phase derived mainly from the dilution effect. The early degradation of CO/DOPO-AmdPTES compared to CO/DOPO-ETES, triggered by the cleavage of the weak bond between P and C=O, as the DFT study indicated, provides the beneficial effect of this flame retardant on the fire resistance of cellulose.[Graphical Abstract]

引用

页码：2627 / 2652

页数：26

共 63 条

[1] COMPETITIVE REACTIONS IN THERMAL DECOMPOSITION OF CELLULOSE [J].