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Dahiya, J. B.
- Effect of Nanoclays on Thermal and Flame Retardant Properties of Intumescent Coated Cotton Fabric
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Authors
Affiliations
1 Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar 125001, Haryana, IN
2 Thapar Centre for Industrial Research and Development, Paper Mill Campus, Yamuna Nagar- 135001, Haryana, IN
1 Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar 125001, Haryana, IN
2 Thapar Centre for Industrial Research and Development, Paper Mill Campus, Yamuna Nagar- 135001, Haryana, IN
Source
Asian Journal of Research in Chemistry, Vol 6, No 7 (2013), Pagination: 676-682Abstract
The cotton fabric was coated with flame retardant intumescent formulations containing different nanoclays (kaolin, bentonite, nanomer 1.34TCN, nanomer 1.28E) using K-control coater. The thermal behavior of samples was studied using thermogravimetry (TG) and differential scanning calorimetry (DSC). The flame retardant properties were studied using auto flammability test and limiting oxygen index (LOI) to study the effect of different nanoclays with intumescent formulation on cotton fabric. The thermal analysis shows that the onset decomposition temperature of the coated cotton fabric is lowered whereas the temperature at mid of the decomposition is increased on coating. Thermal stability of coated samples is increased after 300 0C, the rate of weight loss is reduced and char yield is increased in comparison to pure cotton fabric. A significant reduction in flame spread time in auto flammability test is observed on inclusion of nanoclays into intumescent system coated onto the cotton fabric. LOI value for pure cotton fabric is increased from 18 % to significant values in the range 27.5-28.5 % on coating fabric with intumescent system containing nanoclays.Keywords
Cotton Fabric, Flame Retardant, Intumescent, Nanoclay, Thermogravimetry, Flammability
References
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- Flame Retarding and Thermal Degradation Study of Intumescent Coated Cotton
Abstract Views :159 |
PDF Views:1
Authors
Affiliations
1 Department of Chemistry, Guru Jambheshwer University of Science and Technology, Hisar, IN
1 Department of Chemistry, Guru Jambheshwer University of Science and Technology, Hisar, IN
Source
Asian Journal of Research in Chemistry, Vol 3, No 4 (2010), Pagination: 911-915Abstract
The effect of intumescent on the thermal degradation and flammability of cotton fabric has been studied in this investigation. The intumescent formulation containing ammonium polyphosphate, melamine, pentaerythritol and metal salts was used for coating the cotton fabric to make it flame retarded. The Thermal analysis (TG and DSC) in nitrogen atmosphere was carried out to study the thermal behaviour of coated cotton. Char yield of cotton fabric at 600 ℃ in nitrogen atmosphere was found increased from 12.8% to 25.4% on coating. The limiting oxygen index value for cotton fabric was found increased from 18.0% to 28.0% on coating with intumescent formulation (40 % w/w of cotton). The increase in char yield and LOI value justified the flame retarding behavior of coated cotton fabric.Keywords
Flame-Retardant, Cotton, Intumescent, Thermal Degradation, Char Yield, Limiting Oxygen Index.- Nanoclay as Thermal Barrier in Coating Intumescent Formulations for Flame Retardant Cotton Fabric
Abstract Views :186 |
PDF Views:0
Authors
Affiliations
1 Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar-125001, IN
1 Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar-125001, IN
Source
Asian Journal of Research in Chemistry, Vol 3, No 4 (2010), Pagination: 1007-1010Abstract
Industrial growths during the last century have led to the use of cellulosics for everyday household and office items (e.g. furniture, fabrics, automotive parts, housings for electronic equipment etc). But high flammability of such materials means that their occurrence could create a fire risk and hazard. Therefore, required fire safety standard needs the materials to be flame retarded. In the present study, the intumescent formulation containing ammonium polyphosphate, melamine, pentaerythritol and nanoclay was used for coating the cotton fabric to make it flame retarded. Thermal analysis in nitrogen atmosphere was carried out to study the thermal behaviour of coated fabric. Limiting oxygen index (LOI) study was also carried out to evaluate the flammability behaviour of the cotton fabric. Char yield of cotton fabric was found increased from 12.8 to 27.4% on coating with Intumescents containing nanoclay at 600 °C in nitrogen atmosphere. The LOI value for cotton fabric increased from 18 to 22.1% on coating with intumescent-nanoclay formulation.Keywords
Nanoclay, Flame-Retardant, Cotton, Intumescent, Thermal Degradation, Char Yield.- Phosphorylated Epoxy Nanocomposites:Study of Structure and Mechanical Properties
Abstract Views :562 |
PDF Views:5
Authors
Priyanka
1,
J. B. Dahiya
1
Affiliations
1 Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar-125001, Haryana, IN
1 Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar-125001, Haryana, IN