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Mechanical stability of intumescent chars

✍ Scribed by Igor S. Reshetnikov; Marina Yu. Yablokova; Elena V. Potapova; Nikolay A. Khalturinskij; Valerii Ya. Chernyh; Leonid N. Mashlyakovskii


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
122 KB
Volume
67
Category
Article
ISSN
0021-8995

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✦ Synopsis


Intumescent fire-retardant systems have been studied in detail from all points of view. However, all works passed around questions of mechanical stability of foamed chars produced during burning. In the present work, mechanical properties of intumescent chars has been discussed. Technique and method of such investigations have been supposed. It was supposed that mechanical stability of foamed chars correlates with high molecular fraction in char residue.


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## Abstract A novel intumescent flame retardant: tetra‐spirophosphoryl‐benzoguanamine (TSPB) containing three constituents was used as a new flame retardant for polypropylene to prepare flame‐retardant materials, whose flammability and thermal behavior were studied by the limited oxygen index (LOI)