摘要
为了解决不饱和聚酯树脂(UPR)在固化过程中固化速度随凝胶时间延长而变慢的问题,采用过氧化甲乙酮/过氧化环己酮和异辛酸钴/2,4-戊二酮组成的氧化还原固化体系在室温下对UPR进行固化,对苯二酚作为阻聚剂,研究了固化体系中各组分用量对UPR凝胶时间、峰值时间和最大放热峰温度的影响,得出各个组分的最适宜用量。在工程中应用此工艺条件,使UPR在工程应用中有较长的施工期,后期快速固化,且固化程度较高。
In order to solve the problem about the curing speed slow with the extension of gel time in the cure reaction of the unsaturated polyester resin（ UPR）,the UPR was cured with redox curing system which consisted of methyl ethyl ketone peroxide,cyclohexanone peroxide,cobalt bitter and 2,4-pentanedione at room temperature in this paper,hydroquinone was regarded as an additive at the same time. The amount of each component in the redox curing system on the influence of UPR gel time,peak time and exothermic peak temperature were studied,whereby the most suitable dosage of each component which including methyl ethyl ketone peroxide,cyclohexanone peroxide,cobalt bitter,2,4-pentanedione and hydroquinone was obtained. And,UPR has long induction period,fasted curing in the late,and cure degree high when applying this technology condition which got through the experiment in the engineering application.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2015年第3期70-72,34,共4页
Fiber Reinforced Plastics/Composites
关键词
不饱和聚酯树脂
过氧化甲乙酮
过氧化环己酮
异辛酸钴
凝胶时间
unsaturated polyester resin
methyl ethyl ketone peroxide
cyclohexanone peroxide
cobalt bitter
gel time
