|本期目录/Table of Contents|

[1]高文博,李永辉,何吉宇,等.端丙炔基聚丁二烯预聚物的贮存稳定性[J].火炸药学报,2019,42(5):460-464.[doi:10.14077/j.issn.1007-7812.2019.05.007]
 GAO Wen-bo,LI Yong-hui,HE Ji-yu,et al.Study on the Storage Stability of Propargyl-Terminated Polybutadiene Prepolymer[J].,2019,42(5):460-464.[doi:10.14077/j.issn.1007-7812.2019.05.007]
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端丙炔基聚丁二烯预聚物的贮存稳定性()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
42卷
期数:
2019年第5期
页码:
460-464
栏目:
出版日期:
2019-10-31

文章信息/Info

Title:
Study on the Storage Stability of Propargyl-Terminated Polybutadiene Prepolymer
作者:
高文博 李永辉 何吉宇 杨荣杰
北京理工大学材料学院, 北京 100081
Author(s):
GAO Wen-bo LI Yong-hui HE Ji-yu YANG Rong-jie
School of Materials, Beijing University of Technology, Beijing 100081, China
关键词:
分析化学端丙炔基聚丁二烯PTPB弹性体贮存稳定性GAP
Keywords:
analytical chemistrypropargyl-terminated polybutadienePTPBelastomerstorage stabilityGAP
分类号:
TJ55;O632.14
DOI:
10.14077/j.issn.1007-7812.2019.05.007
文献标志码:
-
摘要:
为确定端丙炔基聚丁二烯(PTPB)在常温下的贮存稳定性,通过跟踪测试研究了PTPB在室温(15~30℃)、5℃他-10℃下的贮存稳定性。采用13C-NMR、FT-IR、TG、GPC和黏度测试对贮存在不同温度下、不同时间的PTPB的化学结构和性质进行了表征分析,并将贮存的PTPB预聚物分别与聚叠氮缩水甘油醚(GAP)制成PTPB弹性体,采用FTIR、DMA和力学测试对弹性体进行表征。结果表明,在室温下贮存4个月的PTPB,与在5℃和-10℃贮存4个月的PTPB化学结构及性质一致,未发生聚合、交联、断链、氧化反应,黏度也未发生变化;由其制成的PTPB弹性体在3种温度下贮存4个月后,其分子结构、动态力学性能及室温力学性能也保持一致。因此PTPB能够在常温下稳定贮存,不需在低温贮存。
Abstract:
In order to determine the storage stability of propargyl-terminated polybutadiene (PTPB) at room temperature, the storage stability of PTPB at room temperature(15-30℃), 5℃ and -10℃ was investigated by tracking test. The chemical structures and properties of PTPB stored at different temperatures and times were characterized by 13C-NMR, FTIR, TG, GPC and viscosity tests. The PTPB elastomers were prepared from the stored PTPB prepolymer and azido-glycidyl ether (GAP) and the properties of elastomers were characterized by FT-IR, DMA and mechanical tests. The results show that the PTPB stored at room temperature for four months has the same chemical structure and properties as that of PTPB stored at 5℃ and -10℃, no polymerization, cross-linking, oxidation and other reactions have taken place, and the viscosity has not changed. After storing for four months under three different temperatures, the molecular structure, dynamic mechanics performance, mechanics performance at room temperature of PTPB elastomers made from stored PTPB are also consistent. Therefore, PTPB can be stored stably at room temperature.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-03-27;改回日期:2019-05-13。
作者简介:高文博(1993-),男,硕士研究生,从事固体推进剂黏合剂方面的研究。E-mail:13701029032@163.com
通讯作者:杨荣杰(1963-),男,教授,博导,从事含能材料、阻燃材料、高分子及功能材料研究。E-mail:yrj@bit.edu.cn
更新日期/Last Update: 1900-01-01