This work employs a similar approach with the use of PA6 as a charring agent to improve the flame retardancy of the flame-retardant PP/MTAPP composites.
In order to solve this problem, PA6 is selected as a charring agent with MTAPP to improve the flame retardancy of the PP composites, where total amount of flame retardants including both MTAPP and PA6 is kept at 30 wt%.
It can be seen from Table 2 that the migration percentage increases with increasing the content of charring agent.
Dependence of the charring rate on the unprotected wood density is also emphasized in Eurocode 5 (LST EN 1995-1-2:2005).
Charring rate is influenced by wood moisture, surface orientation, air movement, thermal load, gaps and etc.
Charring of wood is closely related to the combustion characteristics of wood components--hemicellulose, cellulose and lignin--which influence formation of char.
The start time of charring behind the fire protective cladding and the failure time of cladding are important properties for the fire safety design of timber frame structures.
3], the charring rate values in EN 1995-1-2 are independent of density.
3], then the charring rate under fire-resistance test furnace conditions will be in the range of 0,5-0,8 mm/min.
During the one-step charring
process, the poultry litter is heated to at least 700[degrees]C, or about 1,300[degrees]F.
There is currently one shut-in gas well located within the Charring
Cross Project area.
Excessive heating of the instrument is also associated with burning or charring of tissue and the generation of smoke as the tissue breaks down.
Seedling Enterprises has developed a unique, patented device technology for maintaining the tips of electrosurgical instruments at temperatures below those that cause sticking, burning and charring of tissue.
Sticking and charring have always hampered the effectiveness of electrosurgical instruments.
Unlike other RF tissue coagulation methods that tend to destroy tissue by charring
, searing and narcosis, the CSMG platform technology bonds together incised tissue and avoids charring
, searing and narcosis using a low heat delivery method aimed at restoration of the normal functions of the live organ and tissue.