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Nehra, Saroj
- 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
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