Thermal Degradation and Fire Performance of Water-Based Intumescent Coatings with Flake Fillers in Humid Tropical Conditions

2007 ◽  
Vol 46 (1) ◽  
pp. 89-94 ◽  
Author(s):  
Zhenyu Wang ◽  
Enhou Han ◽  
Wei Ke
Keyword(s):  
Thermal Degradation ◽  
Fire Performance ◽  
Intumescent Coatings ◽  
Tropical Conditions ◽  
Water Based

scholarly journals Waterborne Intumescent Coatings Containing Industrial and Bio-Fillers for Fire Protection of Timber Materials

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 757 ◽  
Author(s):  
Abderrahman Aqlibous ◽  
Svetlana Tretsiakova-McNally ◽  
Talal Fateh
Keyword(s):  
Wood Sample ◽  
Rice Husk Ash ◽  
Thermal Flux ◽  
Back Surface ◽  
Cone Calorimetry ◽  
Protective Properties ◽  
Intumescent Coatings ◽  
Water Based ◽  
Effective Heat Of Combustion ◽  
Wood Surfaces

Flammability and combustion of softwood treated with intumescent coatings were studied in the present work. The formulations applied onto wood surfaces contained different ratios of industrial fillers, titanium dioxide TiO2 and aluminium trihydroxide Al(OH)3, and/or bio-fillers, eggshell and rice husk ash. Combustion behaviours of unprotected and protected wood samples have been examined with the aid of cone calorimetry performed under the varied levels of thermal flux ranging from 30 to 50 kW/m². The char residues obtained after the completion of cone calorimetry test at 40 kW/m² were analysed by the Raman spectroscopy. The fire protective properties of the studied coatings were strongly influenced by the nature of the fillers as well as by the intensity of thermal irradiance. The incorporation of bio-based fillers into the water-based intumescent formulations significantly improved fire resistance of wood substrates. For example, at 30 kW/m², the Effective Heat of Combustion was reduced by more than 40%, whilst the average Peak to Heat Release Rate had dropped from 193.2 to 150.3 kW/m² for the wood sample protected with the formulation incorporating two industrial and two bio-fillers. Moreover, an application of the studied coatings resulted in a notable reduction of the back surface temperature of the wood specimens.

scholarly journals A chain is no stronger than its weakest link: Weathering resistance of water-based intumescent coatings for steel applications

2020 ◽  
pp. 073490412096106
Author(s):  
Lars-Hendrik Daus ◽  
Bernhard Schartel ◽  
Volker Wachtendorf ◽  
Rolf Mangelsdorf ◽  
Manfred Korzen
Keyword(s):  
Polyvinyl Acetate ◽  
Water Soluble ◽  
Weakest Link ◽  
Intumescent Coatings ◽  
Water Based ◽  
Water Soluble Substance ◽  
A Chain ◽  
New Generation ◽  
Steel Substrates ◽  
Weathering Resistance

A systematic approach was used to investigate the weathering-induced degradation of a common water–based intumescent coating. In this study, the coatings are intended for humid indoor applications on steel substrates. The coating contains ammonium polyphosphate, pentaerythritol, melamine, and polyvinyl acetate. By replacing each ingredient with a less water-soluble substance, the most vulnerable substances, polyvinyl acetate and pentaerythritol, were identified. Furthermore, the weathering resistance of the system was improved by exchanging the ingredients. The coatings were stressed by artificial weathering tests and evaluated by fire tests. Thermogravimetry and Fourier-transform infrared spectroscopy were used to study the thermal decomposition. This study lays the foundation for the development of a new generation of water-based intumescent coatings.

Thermal degradation and fire performance of wood treated with various inorganic salts

2010 ◽  
Vol 35 (8) ◽  
pp. 569-576 ◽  
Author(s):  
Hongqiang Qu ◽  
Weihong Wu ◽  
Hongjuan Wu ◽  
Yunhong Jiao ◽  
Jianzhong Xu
Keyword(s):  
Thermal Degradation ◽  
Inorganic Salts ◽  
Fire Performance

Influences of nano bio-filler on the fire-resistive and mechanical properties of water-based intumescent coatings

2018 ◽  
Vol 124 ◽  
pp. 33-40 ◽  
Author(s):  
Ming Chian Yew ◽  
Ming Kun Yew ◽  
Lip Huat Saw ◽  
Tan Ching Ng ◽  
Rajkumar Durairaj ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Intumescent Coatings ◽  
Water Based

Thermal degradation and fire performance of newphosphonate polyurethanes

2002 ◽  
Vol 78 (2) ◽  
pp. 211-218 ◽  
Author(s):  
M Spirckel ◽  
N Regnier ◽  
B Mortaigne ◽  
B Youssef ◽  
C Bunel
Keyword(s):  
Thermal Degradation ◽  
Fire Performance

Effect of Two Polymer Phases on Improved Fire Performance of ABS Filled with Surface Treated Magnesium Hydroxide

2013 ◽  
Vol 798-799 ◽  
pp. 147-150
Author(s):  
Pei Bang Dai ◽  
Yu Ru He ◽  
Yue Qun Lu ◽  
Zhang Ting Li
Keyword(s):  
Thermal Stability ◽  
Thermal Degradation ◽  
Magnesium Hydroxide ◽  
Fire Performance ◽  
Styrene Acrylonitrile ◽  
Ul 94 ◽  
Decomposition Behavior ◽  
Thermal Stability Of

With the aim of invesgating effect of the two polymer phases of ABS on improved fire performance of ABS filled with magnesium hydroxide, we have prepared ABS filled with surface-treated magnesium hydroxide (MH) via compounding poly (styrene-acrylonitrile) (SAN) and polybutadiene filled with MH as well as by compounding ABS and MH. These ABS filled with MH were compared with unfilled ABS by investigating their fire performance and thermal degradation with LOI test, UL-94 test, DSC and FTIR. The dehydration of MH did not effectively increase fire performance and thermal stability of ABS filled with 60.0wt% MH when MH resided in SAN of ABS due to compounding of ABS and MH. The dehydration of MH was clearly able to change the decomposition behavior of the two polymer phases of ABS in ABS filled with 60.0wt% MH when MH resided in the polybutadiene of ABS, resulting in an efficient enhancement of fire performance.

Thermal degradation and fire performance of plywood treated with expanded vermiculite

2015 ◽  
Vol 40 (3) ◽  
pp. 427-433 ◽  
Author(s):  
Fei Wang ◽  
Zhenzhong Gao ◽  
Min Zheng ◽  
Jin Sun
Keyword(s):  
Thermal Degradation ◽  
Fire Performance ◽  
Expanded Vermiculite
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