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Vol.1 , No. 1, Publication Date: Jul. 7, 2014, Page: 14-19
 was prepared with ammonium polyphosphate(APP) dimethyl methylphosphonate(DMMP),and their compounded systems as fire retardant(FR) additives. The effect of these additives on the properties of RPUF such as physic-mechanical, morphological, LOI and smoke density were studied. The mechanical properties such as compressive strength and tensile strength of filled RPUF shows inferior properties as that of neat RPUF. In order to evaluate flame retardant properties of the filled RPUF with various amounts of FRs, limit oxygen index(LOI) and maximum smoke density(MSD) were measured. The flame retardant property of filled RPUF was improved with respect to the neat RPUF. The LOI of DMMP filled RPUF was higher than that of the APP filled RPUF, and their compounded systems display well synergy effects. However, the APP filled RPUF emanates less quantity of smoke as compared to the DMMP filled RPUF. Moreover, we can also see from their compounded systems, the higher loading of DMMP with APP filled RPUF, the less MSD release compared to DMMP filled RPUF.&picture=http://www.aascit.org/aascit/decorators/img/journal/916.jpg)
| [1] | Fengjiao Liu , The Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, China. |
| [2] | Xuejia Ding , The Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, China. |
| [3] | Yu Su , The Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, China. |
Water blown rigid polyurethane foam(RPUF) was prepared with ammonium polyphosphate(APP) dimethyl methylphosphonate(DMMP),and their compounded systems as fire retardant(FR) additives. The effect of these additives on the properties of RPUF such as physic-mechanical, morphological, LOI and smoke density were studied. The mechanical properties such as compressive strength and tensile strength of filled RPUF shows inferior properties as that of neat RPUF. In order to evaluate flame retardant properties of the filled RPUF with various amounts of FRs, limit oxygen index(LOI) and maximum smoke density(MSD) were measured. The flame retardant property of filled RPUF was improved with respect to the neat RPUF. The LOI of DMMP filled RPUF was higher than that of the APP filled RPUF, and their compounded systems display well synergy effects. However, the APP filled RPUF emanates less quantity of smoke as compared to the DMMP filled RPUF. Moreover, we can also see from their compounded systems, the higher loading of DMMP with APP filled RPUF, the less MSD release compared to DMMP filled RPUF.
Keywords
Rigid Polyurethane Foam(RPUF), Phosphorus Compounds, Flame Retardancy, Dmmp, APP
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