Influence of high temperature fillers on activation energy of coating for wood protection
DOI:
https://doi.org/10.31548/forest2019.03.098Abstract
The article reflects the results of research on influence of a number of fillers on weight loss of wood protected with a coating based on inorganic and organic substances in the process of thermal impact. A specific feature was the research of fire retardant efficiency of a coating composition. The solution to this problem was searched for by the standardized methods. The influence of the fillers under conditions of a high-temperature heat flux on the dynamics of weight loss of wood treated with fire retardants was revealed, and the mechanism of the kinetics of the influence of the filler was determined. The latter is characterized by lowering rate and weight loss. Inter alia, for a sample of wood with fire retardant coating containing high-temperature filler a gradual temperature decrease occurs, i.e., the functioning of the coating was noted, and hence, the lowering of smoke formation ability was revealed. To determine the fire retardant efficiency when using high-temperature fillers of coating, the combustibility groups of wood were established by loss of weight and increase of smoke fumes temperature. It was revealed that the treated wood has become a hardly combustible material. The loss of weight of coatings versus temperature was determined as a result of the thermogravimetric analysis. Based on the named analysis, the activation energy was studied under conditions of thermal decomposition of the coatings. It was found that the latter was equal to 21.87 kJ/mole for the coating based on organic and inorganic substances, but in case of introduction of high-temperature substances, it increased three times. This fact makes it possible to draw a conclusion on the expedience of application of fillers based on high-temperature substances for raising the efficiency of coatings based on organic and inorganic substances.
Keywords: fire resistance, coating, wood, weight loss, temperature, activation energy.
References
Broido, A. (1969). A simple sensitive graphical method of treating thermogravimetry analyse data. J. Polym. Sci, 7 (2), 1761-1773. https://doi.org/10.1002/pol.1969.160071012
But, V. P. (2004). A new approach to firebiosis products from cellulozi. Overvoltage protection, 5, 31-32 [in Russian].
Carosio, F., Kochumalayil, J., Cuttica, F., Camino, G., & Berglund, L. (2015). Oriented Clay Nanopaper from Biobased Components Mechanisms for Superior Fire Protection Properties. ACS Appl. Mater. & Interfaces, 7 (10), 5847-5856. https://doi.org/10.1021/am509058h
Khalili, P., Tshai, K. Y., Hui, D., & Kong, I. (2017). Synergistic of ammonium polyphosphate and alumina trihydrate as fire retardants for natural fiber reinforced epoxy comp. Composites Part B: Engineering, 114, 101-110. https://doi.org/10.1016/j.compositesb.2017.01.049
Leonovich, A. A. (1996). Chemical approach to the problem of perceiving the prevalence of wood materials. Predictable damage to the soles and materials, 3, 10-14 [in Russian].
Subasinghe, A., Das, R., & Bhattacharyya, D. (2016). Study of thermal, flammability and mechanical properties of intumescent flame retardant PP/kenaf nanocomposites. International Journal of Smart and Nano Materials, 7:3, 202-220. https://doi.org/10.1080/19475411.2016.1239315
Tsapko, Yu., & Tsapko, А. (2017). Simulation of the phase transformation front advancement during the swelling of fire retardant coatings. Eastern-European Journal Enterprise Technologies, 2/11 (86), 50-55. https://doi.org/10.15587/1729-4061.2017.73542
Tsapko, Ju., & Tsapko, А. (2017a). Establishment of the mechanism and fireproof efficiency of wood treated with an impregnating solution and coatings. Eastern-European Journal Enterprise Technologies, 3/10 (87), 50-55. https://doi.org/10.15587/1729-4061.2017.102393
Tsapko, Yu., & Tsapko, А. (2018). Installation of fire fighting efficiency of processed processing solution and coverage. Eastern-European Journal Enterprise Technologies, 4/10 (94), 62-68. https://doi.org/10.15587/1729-4061.2018.141030
Tychino, N. A. (2002). Features of practical application of fire and bio-protective means for impregnation of wood. Predictable damage to the soles and materials, 6, 38-43.
Downloads
Published
Issue
Section
License
Relationship between right holders and users shall be governed by the terms of the license Creative Commons Attribution – non-commercial – Distribution On Same Conditions 4.0 international (CC BY-NC-SA 4.0):https://creativecommons.org/licenses/by-nc-sa/4.0/deed.uk
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
