高性能阻燃环氧灌封胶的制备  

Preparation of high performance flame retardant epoxy pouring sealant

作　　者：曹礼淦 邓丹[1] 吴慧珍 罗秋兰[2] CAO Li-gan;DENG Dan;WU Hui-zhen;LUO Qiu-lan(Department of Polymer Science and Engineering,Jiaxing University,Jiaxing 314001,China;Department of Chemical Textile,Jiaxing University Nanhu College,Jiaxing 314001,China)

机构地区：[1]嘉兴学院高分子材料与工程系,浙江嘉兴314001 [2]嘉兴学院南湖学院化纺系,浙江嘉兴314001

出　　处：《热固性树脂》2021年第4期44-47,共4页Thermosetting Resin

基　　金：嘉兴学院南湖学院院内科研重点课题(N41472001-49);嘉兴学院重点SRT项目(CD8517193248)。

摘　　要：采用双酚A型环氧树脂CY5995为基体树脂,酸酐HY227为固化剂,聚磷酸铵(APP)/氢氧化铝(ATH)为复配阻燃剂,硅微粉为填料,脂环族环氧树脂S-186为改性剂制备了环氧灌封胶。通过示差扫描量热分析、热失重分析和氧指数、阻燃级别、弯曲和拉伸强度等测试研究了阻燃剂配比、填料以及脂环族环氧树脂用量等对灌封胶性能的影响。结果表明:聚磷酸铵,氢氧化铝,硅微粉,S-186树脂的添加质量分数分别为15%,5%,280%,15%的CY5995/HY227体系的综合性能优异,灌封胶的极限氧指数为31.5%,阻燃等级达到UL94 V-0级,弯曲强度和拉伸强度分别达到135.2 MPa和75.6 MPa。The epoxy pouring sealant was prepared using bisphenol A epoxy resin CY5995 as matrix resin,acid anhydride HY227 as curing agent,ammonium polyphosphate(APP)/aluminum hydroxide(ATH)as compound flame retardant,silica powder powder as filler and alicyclic epoxy resin as modifier.The effects of flame retardant ratio,filler and alicyclic epoxy resin S-186 amounts on the properties of potting sealant were investigated by DSC,TGA and tests of oxygen index,flame retardant grade,flexural strength and tensile strength,etc.The results showed that the CY5995/HY227 system with 15 wt%,5 wt%,280 wt% and 15 wt% of ammonium polyphosphate,aluminum hydroxide,silica powder powder and S-186 resin respectively had excellent comprehensive performance.The limiting oxygen index was 31.5%,and the flame retardant grade reached UL94 V-0.The flexural strength and tensile strength was 135.2 MPa and 75.6 MPa,respectively.

关 键 词：环氧灌封胶 聚磷酸铵 氢氧化铝 硅微粉 脂环族环氧树脂 阻燃性 弯曲强度 拉伸强度 

分 类 号：TQ433.437[化学工程]