热收缩带热熔胶组分对物性的影响  

Impact of hot melt adhesive components of heat shrinkable sleeve on physical property

作　　者：赵吉诗[1] 冯少广[1] 李睿[1] 赵国星[1] 林伟[2] 邹威[2] 杜中杰[2] 刘淑聪[3] 

机构地区：[1]油气管道输送安全国家工程实验室·中国石油管道科技研究中心,河北廊坊065000 [2]北京化工大学,北京100029 [3]防灾科技学院,河北三河065201

出　　处：《油气储运》2012年第9期681-684,3-4,共4页Oil & Gas Storage and Transportation

摘　　要：热收缩带广泛应用于油气管道3PE防腐结构中的补口防腐,易发生热收缩带补口短期失效现象。热收缩带补口过程中形成的粘接界面均与热熔胶层相关,因此热熔胶组分及其性能对热收缩带补口质量具有显著影响。采用红外光谱分析、差示扫描量热分析(DSC)、电子扫描电镜(SEM)及能谱分析等方法,对5种代表性热收缩带产品的热熔胶组分进行组分分析,结果表明各种产品组分差异较大。研究了产品组分对热熔胶硬度、吸水率及外观变形性的影响,并对热熔胶的性能改进和持续研究提出建议。Heat shrinkable sleeve is widely used for joint coating in 3PE anticorrosive structure of oil and gas pipelines,and is prone to short-term failure.Bonding interfaces formed during the joint coating of heat shrinkable sleeve all are related to the hot melt adhesive layer,so components and performance of hot melt adhesive have a significant impact on the joint coating quality of heat shrinkable sleeve.Infrared spectroscopic analysis,differential scanning calorimetry analysis(DSC),scanning electron microscopy(SEM),energy spectrum analysis and other methods are used for analyzing hot melt adhesive components of 5 representative heat shrinkable products.Results indicate that the products have a larger component difference.In the paper,the impact of product components on the hot melt adhesive hardness,water absorption and appearance deformation is researched and recommendations are proposed for hot melt adhesive performance improvement and continuous research.

关 键 词：管道 热收缩带 补口 热熔胶 组分 物性 

分 类 号：TB988[一般工业技术—计量学]