Preparation and Thermal Properties of Phosphorus-containing Copolyester Nanocomposites with Carbon Nanotube

关键词：

carbon nanotube phosphorus-containing copolyeste

类别：

橡胶 >> 橡胶原料

来源：

2009高分子先进制造业论坛（青岛）

资料类型：

pdf文件

资料大小：

520K

简介：

Flame retardant nanocomposites were synthesized by melt-blending phosphoruscontaining
copolymer (PET-co-DDP) with multi-wall carbon nanotubes. PET-co-DDP was
copolymerized with terephthalic acid (TPA), ethylene glycol (EG) and 9, 10-dihydro-10[2, 3-di-
(hydroxy carbonyl)propyl]-10-phosphaphenanthrene-10-oxide (DDP). The structure of the
nanocomposites was characterized by scan electron microscopy (SEM). Fire property
measurements by cone calorimeter revealed that the incorporation of multi wall carbon nanotubes
into PET-co-DDP significantly reduced the peak heat release rates compared with the PET-co-DDP.
The thermal properties of the nanocomposites were investigated by thermogravimetric analysis
(TGA). It was found that the thermal stability of copolyester was improved by the addition of the
multi-wall carbon nanotubes. Char formation is the main factor for these improvements. The flame
retardant performance was achieved through the formation of a relatively uniform networkstructured
floccule layer covering the entire sample surface without any cracks or gaps. This layer
re-emitted much of the incident radiation back into the gas phase from its hot surface.

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chem2000

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2009-11-02 17:10:47

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