| Download | - View final version: Thermal degradation of cellulose and levoglucosan: the effect of inorganic stalts (PDF, 1.9 MiB)
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| DOI | Resolve DOI: https://doi.org/10.4224/40001747 |
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| Author | Search for: Fung, D. P.; Search for: Tsuchiya, Y.1; Search for: Sumi, K. |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Article |
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| Subject | cellulose; fire retardants; flame resistance; salts; flammability tests |
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| Abstract | The effects of eleven inorganic flame retardants on the flammability of cellulose have been investigated, and these flammability data were compared with the tar (levoglucosan) formation from the pyrolysis process. There was no correlation between the effectiveness of these flame retardants as determined by a minimum oxygen concentration flammability test at 1 percent treatment level and the amount of levoglocosan formed. This finding is contrary to the suggestions made by previous workers. A study of the pyrolysis of levoglucosan in the presence of potassium bromide (neutral), potassium carbonate (basic), and phosphoric acid (acidic) was made. Phosphoric acid had the most pronounced effect on the breakdown of levoglucosan; and carbon monoxide, carbon dioxide, water, and residual char were among the major products. The data from the DP study indicate that both basic and acidic additives, soduim tetraborate decahydrate, and ammonium monohydrogen orthophosphate, accelerate the depolymerization in the early stages of the pyrolysis of cellulose. |
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| Publication date | 1972-11-01 |
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| Publisher | National Research Council of Canada. Division of Building Research |
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| Series | |
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| Note | Reprinted from: Wood Science, v. 5, no. 1, July 1972, p. 38-43. ISSN: 0043-7700 |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 12906
NRC-IRC-3882 |
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| NPARC number | 20375762 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 45e7b5e8-aae4-44da-9509-5134a9898c96 |
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| Record created | 2012-07-23 |
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| Record modified | 2024-01-16 |
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