邻苯二甲酸二烯丙酯预聚体的制备及其对光固化不饱和聚酯树脂的改性研究  

PREPARATION OF DIALLYL PHTHALATE PREPOLYMER AND APPLICATION IN UV-CURABLE UNSATURATED POLYESTER RESIN

作　　者：芦璐[1] 郑永泽[1] 庄熙杰 廖泽承 廖正福[1] 

机构地区：[1]广东工业大学材料与能源学院,广东广州510006

出　　处：《精细石油化工》2015年第6期28-31,共4页Speciality Petrochemicals

基　　金：广州市科技计划项目(20134400217);广东工业大学大学生创新创业项目(xj201311845097)

摘　　要：以邻苯二甲酸二烯丙酯(DAP)为单体,过氧化苯甲酰(BPO)为引发剂,采用本体聚合方法制备了邻苯二甲酸二烯丙酯预聚体(PDAP),并研究了PDAP对紫外光固化不饱和聚酯树脂的改性作用。结果表明,BPO用量为单体用量3%、聚合温度80℃时,聚合转化率可达到50%。根据Arrhenius经验方程计算得到DAP单体聚合反应活化能为E_a=154.2kJ/mol,指前因子A为1.82×10^(10)。在光固化不饱和聚酯树脂体系内加入一定量的PDAP,固化膜的硬度、耐水性、附着力和抗冲击性都有较大程度提高。The diallyl phthalate prepolymer was prepared by bulk polymerization with diethyl phthalate as monomer and benzoyl peroxide as initiator, and it was employed in UV-curable unsaturated polyester resin coatings. Results showed that the conversion of diallyl phthalate could reach 50% by adding 3% weight of BPO under 80 ℃. According to Arrhenius＇ equation, the activation energy （Ea） and pre-exponential factor （A） of diallyl phthalate is 154. 2 kJ/mol and 1. 82 × 10^10 respectively. The scratch resistance, impact resistance, pencil hardness and adhesion could be improved with the introduction of diallyl phthalate prepolymer.

关 键 词：苯二甲酸二烯丙酯 预聚体 不饱和聚酯树脂 改性 

分 类 号：TQ245.24[化学工程—有机化工]