北京林业大学学报2012，Vol.34Issue(4)：160-164,5.
MUF-PVAc共混树脂基膨胀型水性木材阻燃涂料的研究
MUF-PVAc共混树脂基膨胀型水性木材阻燃涂料的研究Fire retardant properties of intumescent waterborne fire-retardant coatings based on MUF-PVAc mixed resin for wood
摘要
Abstract
An intumescent waterborne fire-retardant coating for wood was prepared using the blend of melamine urea-formaldehyde resin（MUF） and polyvinyl acetate resin（PVAc） as film-forming resin,and the mixture of guanylurea phosphate（GUP）,ammonium polyphosphate（APP）,melamine（MEL） and pentaerythritol（PER） as intumescent fire retardant system.The fire retarding performance of three batch plywood specimens,which were painted with the prepared waterborne intumescent fire-retardant coating（A）,with the film-forming resin（M） and without any coating（S） respectively,was evaluated comparatively by cone calorimetry combined with thermogravimetric analysis（TGA） and Fourier transform infrared spectroscopy analysis（FTIR）.The results showed that the heat release rate（HRR）,the total heat release（THR） and the smoke release rate（SPR） of specimen A decreased more considerably than S and M.The highest value of mass of residual char（Mass） and markedly postponed time to ignition（TTI） were observed for specimen A.TGA analysis showed that GUP and APP played a catalytic charring effect in different temperature ranges,and the combination of two enhanced fire retarding performance of the coating by synergistic effects.FTIR analysis shows that the coating layer of A is thoroughly carbonized,further indicating that GUP-APP-MEL-PER is the effective fire retardant system of MUF-PVAc mixed resin.关键词
水性木材阻燃涂料/膨胀型阻燃涂料/锥形量热仪/阻燃性能Key words
waterborne wood fire-retardant coatings/intumescent fire-retardant coatings/cone calorimeter/fire-retardant分类
化学化工引用本文复制引用
冯建稳,王奉强,孙理超,王清文..MUF-PVAc共混树脂基膨胀型水性木材阻燃涂料的研究[J].北京林业大学学报,2012,34(4):160-164,5.基金项目
基金项目：中央高校基本科研业务费专项（DLl2BBl3）、东北林业大学研究生论文资助项目（STIPl0）. （）
