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Citation: XIAO Wei-Dong, HE Pei-Xin, HE Ben-Qiao. On the Flame-retarding Mechanism of Al₂O₃·3H₂O Towards Cured Epoxy Resin[J]. Chinese Journal of Applied Chemistry, ;2000, 17(4): 397-400. shu

On the Flame-retarding Mechanism of Al₂O₃·3H₂O Towards Cured Epoxy Resin

1.
Faculty of Chemistry and Materials Science, Hubei University, Wuhan 430062

Received Date: 15 December 1999
Available Online: 6 May 2000

The influence of Al₂O₃·3H₂O on flame-retardation of its mixture with cured epoxy resin was briefly investigated by thermogravimetry and oxygen index determination. The results showed that Al₂O₃·3H₂O losses 2 molecules of its crystal water quickly at 200~310℃, becoming an active alumina, which is capable of transfer the resin into a flame-retarding compound at higher temperatures. The flame-retardation of the mixture is likely due to the synergistic reactions of Al₂O₃·3H₂O with epoxy resin at high temperatures.
- epoxy resin,
- Al₂O₃·3H₂O,
- active alumina,
- flame-retardation mechanism
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沈阳化工大学材料科学与工程学院沈阳 110142

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On the Flame-retarding Mechanism of Al2O3·3H2O Towards Cured Epoxy Resin

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On the Flame-retarding Mechanism of Al₂O₃·3H₂O Towards Cured Epoxy Resin