摘要
探讨了不同玻纤、PBT、阻燃剂对增强阻燃PBT抗水解性能的影响.结果表明,水煮后增强阻燃PBT材料力学性能的下降幅度主要取决于玻纤和树脂之间的界面,玻纤ECR5303A-2200与PBT具有良好的界面,其增强的阻燃PBT的力学性能保持率最高,拉伸强度、弯曲强度和缺口冲击强度的保持率分别为水煮前的96%、88%和75%;其次取决于阻燃剂,树脂基体影响最小.加入自制增韧剂可显著降低增强阻燃PBT的端羧基浓度,从而有效提高其抗水解性.
The effects of glass fiber,PBT and flame retardants on hydrolysis resistance of reinforced flame retardant PBT was studied.The results showed the drops of mechanical properties mainly depend on the interface of fiber and resin.Thanks to the firm interface,the flame retardant PBT reinforced by glass fiber ECR5303A-2200 had least breakage and holded 96%of tensile strength,88%of flexural strength,75%of impact fracture after being hydrolyzed. Flame retardant had greater influence on the drop of mechanical properties than resin matrix for reinforced flame retardant PBT.The carboxylic end group concentration would decline sharply by inducing the treated plasticizer,which can effectively improve the hydrolysis resistance of glass fiber reinforced flame retardant PBT.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第5期93-97,共5页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
福建省教育厅A类项目(JA09246)
关键词
增强阻燃PBT
耐水解性
力学性能
端羧基浓度
reinforced flame retardant PBT
hydrolysis resistance
mechanical properties
carboxylic end group concentration
