Affiliation of Author(s):

材料科学与工程学院

Journal:

Polymer Degradation and Stability

Key Words:

中文关键字：APP-PER-MEL 涂料;热降解;膨胀涂料;膨胀石墨;二硅化钼，英文关键字：APP-PER-MEL coating; Thermal degradation; Intumesc

Abstract:

An intumescent flame retardant coating was prepared with resin, solvent and flame retardant system composed of ammonium polyphosphate-APP, pentaerythritol-PER and melamine-MEL. The modifiers such as molybdenum disilicide (MoSi2) and expandable graphite (EG) were used to improve the performances of the APP-PER-MEL coating. The effects of EG, MoSi2 and MoSi2/EG on the fireproofing time, char formation of the coating were investigated by using heat insulation test, thermo-gravimetric analysis (TGA), differential thermal analysis (DTA), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electric microscope (SEM). The results showed that by adding modifiers, the fireproofing time was prolonged and char formation rate was evidently enhanced. The largest improvement was achieved with 9 wt. % MoSi2/5 wt. % EG, XPS analysis indicated that the performance of anti-oxidation of the coating was improved by adding EG and MoSi2, and SEM images showed that a good synergistic effect was obtained through a ceramic-like layer produced by MoSi2 covered on the surface of “open-cellular” structural char.

Note:

李国新

Co-author:

梁国正,杨秦莉

First Author:

songxuefeng,hetingshu,liguoxin

Indexed by:

Journal paper

Volume:

卷：92

Issue:

期：4

Page Number:

页：569-579

Translation or Not:

no

Date of Publication:

2007-04-01