摘要
为改善聚叠氮缩水甘油醚(GAP)的性能,选用聚乙二醇(PEG),以三羟甲基丙烷为交联剂,异佛尔酮二异氰酸酯(IPDI)为固化剂,制备出GAP/PEG/TMP/IPDI双软段含能黏合剂胶片,并采用FTIR,DSC,XRD等方法进行表征.GAP胶片中引入聚乙二醇,拉伸强度提高到3.11MPa,其延伸率可达475%.随交联程度的增大,黏合剂胶片中软段的玻璃化转变温度先增大后降低,DSC和XRD表明此类黏合剂胶片为非晶聚合物,热分解温度为183℃.
The GAP/PEG/TMP/IPDI energetic binder film was synthesized by using PEG and GAP as raw materials,trimethylolpropane as crosslinking agent,and isophorone diisocyanate as curing agent.The binder film was characterized by FTIR,DSC and XRD.Because of the introduction of PEG,the tensile strength of GAP/PEG binder film was raised to 3.11 MPa and the breaking elongation was 475%.With the increasing degree of crosslinking of the binder film,the vitrified temperature of soft segment in the binder film decreased after an initial increase.The DSC and XRD results show that the GAP/PEG binder film is an amorphous polymer and the initial decomposition temperature of copolymer was 183 ℃.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2011年第2期216-219,235,共5页
Transactions of Beijing Institute of Technology
基金
国家部委基金资助项目(A2220061373)
关键词
聚叠氮缩水甘油醚
聚氨酯
共聚
热性能
glycidyl azide polymer
polyurethane
copolymerization
thermal properties
