Kinetics of glycidyl azide polymer-based urethane network formation

2008 ◽  
Vol 110 (2) ◽  
pp. 908-914 ◽  
Author(s):  
S. K. Manu ◽  
V. Sekkar ◽  
K. J. Scariah ◽  
T. L. Varghese ◽  
S. Mathew
Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 637 ◽  
Author(s):  
Liming He ◽  
Jun Zhou ◽  
Sulan Dai ◽  
Zhongliang Ma

To investigate the influence of combustion modifiers on the curing of glycidyl azide polymer spherical propellants (GAPSPs), the curing process of the GAPSPs was explored using an isothermal rheological measurement method. The parameters of cure kinetics were solved to further establish a kinetic model for the curing reaction of GAPSPs. The results showed that the curing process of GAPSPs under isothermal conditions conformed to the Kamal and LSK (Lu–Shim–Kim) models. The model data indicated significant agreement with the experimental data. The influence of four kinds of combustion performance modifiers on the curing process was explored and the results demonstrated that lead phthalate had a catalytic effect on the curing reaction of GAPSPs, whilst oxides of lead and copper, and copper adipate had no influence on the curing reaction.


Author(s):  
Yutaka Wada ◽  
S. Hatano ◽  
Ayana Banno ◽  
Yo Kawabata ◽  
Hiroshi Hasegawa ◽  
...  

2021 ◽  
Vol 126 (9) ◽  
Author(s):  
Nafisa Begam ◽  
Anastasia Ragulskaya ◽  
Anita Girelli ◽  
Hendrik Rahmann ◽  
Sivasurender Chandran ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 278 ◽  
Author(s):  
Jinghui Hu ◽  
Weiqiang Tang ◽  
Yonghui Li ◽  
Jiyu He ◽  
Xiaoyan Guo ◽  
...  

A new energetic curing reagent, Glycidyl azide polymer grafted tetrafunctional isocyanate (N100-g-GAP) was synthesized and characterized by FT-IR and GPC approaches. Polytriazole polyethylene oxide-tetrahydrofuran (PTPET) elastomer was prepared by N100-g-GAP and alkynyl terminated polyethylene oxide-tetrahydrofuran (ATPET). The resulting PTPET elastomer was fully characterized by TGA, DMA, FTIR and mechanical test. The above analysis indicates that PTPET elastomers using N100-g-GAP as curing reagent have the potential for use in propellants. The overall formulation test of the composite propellants shows that this curing system can effectively enhance mechanical strength and bring a significant improvement in the interface interaction between the RDX & AP particles and binder matrix.


2009 ◽  
Vol 114 (6) ◽  
pp. 3360-3368 ◽  
Author(s):  
S. K. Manu ◽  
T. L. Varghese ◽  
S. Mathew ◽  
K. N. Ninan

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