Back to Search
Start Over
SYNERGISTIC EFFECT OF Cu-ZSM-5 ZEOLITE ON FLAME RETARDED PP BY MELAMINE SALT OF DIPENTAERYTHRIOL PHOSPHATE.
- Source :
-
Chinese Journal of Polymer Science (World Scientific Publishing Company) . Mar2009, Vol. 27 Issue 2, p241-252. 12p. 1 Black and White Photograph, 2 Diagrams, 3 Charts, 10 Graphs. - Publication Year :
- 2009
-
Abstract
- A novel intumnescent flame melamine salt of dipentaerythriol phosphate (MDP), was prepared from dipentaerythritol (DPE) polyphosphoric acid, and melamine. The flammability, combustion behavior, and thermal degradation and stability of PP-MDP were characterized. When MDP loading was 20 wt%, LOI values of the composites reached up to 27%, and UL94 rating, V-2. PP-MDP containing 1 wt%; Cu-ZSM-5 presented the highest LOI value of 30.5%; and UL94 rating, V-0, and released lest heat during cone test. TG data showed that the thermal degradation of PP was improved by the addition of MDP. While the loading of ZSM-5 was 1 wt%; or higher, the main weight loss delayed with 50°C, and 80°C, compared with PP and PP-MDP respectively. The appropriate loading Cu-ZSM-5 made PP-MDP possess higher thermal oxidative stability. By SEM, the formation of a dense and thick char layer was observed on the char layer of PP-MDP-containing Cu-ZSM-5, responsible for high flame retardancy. So, the synergistic flame retardancy effects of MDP and Cu-ZSM-5 on PP existed. The mechanism of synergistic effect of Cu-ZSM-5 zeolite on flame retarded PP by MDP was discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02567679
- Volume :
- 27
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Chinese Journal of Polymer Science (World Scientific Publishing Company)
- Publication Type :
- Academic Journal
- Accession number :
- 36879211
- Full Text :
- https://doi.org/10.1142/S025676790900387X