耐热阻燃亚克力浇筑板制备及改性研究  

Preparation and Modification Studies of Flame-retardant Acrylic Casting Board with Enhanced Thermal Property

作　　者：田统帅 刘够生 TIAN Tong-shuai;LIU Gou-sheng(Nanchang University College of Chemistry,Nanchang 330029,China)

机构地区：[1]南昌大学化学学院,江西南昌330029

出　　处：《塑料工业》2021年第6期169-173,共5页China Plastics Industry

摘　　要：将甲基磷酸二甲酯(DMMP)用于聚甲基丙烯酸甲酯材料阻燃,并通过物理交联和化学交联改性提高阻燃材料耐热稳定性和物理性能。采用极限氧指数(LOI)、UL94、锥型量热测试(CCT)研究复合材料阻燃性能和燃烧行为。研究结果表明,当DMMP质量分数为25%时,阻燃材料的极限氧指数达到24.6%,垂直燃烧性能达到UL94 V-0级。化学交联剂EGDMA和物理交联剂甲基丙烯酸甲酯(MAA)质量分数分别为6%时,复合材料具有优异的耐热稳定性、物理性能和透光性能。此方法制备的阻燃亚克力浇筑板材料具有较强工业生产和实际应用价值。Dimethyl methyl phosphate(DMMP)was used for flame retardant polymethyl methacrylate,and the thermal stability and physical properties of composites were improved through physical crosslinking and chemical crosslinking modification.Flame retardancy and combustion behavior of composites was test by limiting oxygen index(LOI),UL94,cone calorimetry(CCT).The results show when the content of DMMP is 25%,the LOI value of PMMA/DMMP composite could reach 24.6%,and a UL94 rating could achieve V-0 level.When the content of EGDMA and MAA is 6%,the composite has excellent thermal property stability,physical properties,and light transmittance.The flame retardant acrylic pouring board material prepared by this method has strong industrial production and practical application value.

关 键 词：亚克力 阻燃 耐热稳定性 交联改性 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]