摘要
分别以脲醛树脂(UF)和纯丙乳液(PEA)树脂为基料,三聚氰胺聚磷酸盐(MPOP)、三聚氰胺(MEL)、季戊四醇(PER)为膨胀阻燃体系,制备了膨胀型阻燃涂料。通过热重分析仪对制备的MPOP热稳定性及阻燃机理进行了表征,利用锥形量热仪、极限氧指数测试仪对涂料阻燃性能进行分析。结果表明,与PEA/MPOP相比,UF/MPOP对木材具有更好的阻燃性能,热稳定性和抑烟性能,极限氧指数提高了9.4%,热释放速率、总热释放量、烟气释放速率降低,在木材表面形成的炭层更加完整。
A flame-retardant coating was prepared by using of urea-formaldehyde resin （UF） or pure acrylic emulsion resin （ PEA）, melamine polyphosphate （ MPOP）, melamine （ MEL）, and pentaerythritol （PER）. The thermal stability and flame-retardant mechanism of the flame retardant coating were investigated by thermogravimetric analysis. The flame-retardant properties of the wood coated with this flame retardant coating were evaluated by cone calorimetry and limited oxygen index. Compared with UF/MPOP system, PEA/MPOP exhibited better flame-retardant properties, higher thermal stabilities, and stronger smoke suppression, and its limited oxygen index value was increased by 9.4%. Moreover, its heat release rate, total heat release rate and rate of flue gas were reduced due to the integrated carbon laver formed on the surface nf the wood.
作者
姜定
杨成志
秦军
田瑶珠
JIANG Ding YANG Chengzhi QIN Jun TIAN Yaozhu(School of Materials and Metallurgy, Guizhou University, Guiyang 550003, China Key Laboratory of Karst Environment and Geohazard Prevention of Ministry of Education, Guizhou University, Guiyang 550003, China Bureau of Industry and Information Technology of Weng＇ an of Ouizhou Province,Weng＇ an 550400, China)
出处
《中国塑料》
CAS
CSCD
北大核心
2016年第10期32-35,共4页
China Plastics
关键词
脲醛树脂
纯丙乳液
膨胀型阻燃涂料
阻燃机理
urea-formaldehyde resin
pure acrylic emulsion
instumescent flame-retardant coating
flame retardant mechanism
