Energetic hybrid polymer network (EHPN) through facile sequential polyurethane curation based on the reactivity differences between glycidyl azide polymer and hydroxyl terminated polybutadiene

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 11032-11039 ◽  
Author(s):  
Abbas Tanver ◽  
Fida Rehman ◽  
Aisha Wazir ◽  
Syed Khalid ◽  
Song Ma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Network ◽  
Hybrid Polymer ◽  
Glycidyl Azide Polymer ◽  
Glycidyl Azide

To improve the thermo-mechanical properties of glycidyl azide polymer and hydroxyl terminated polybutadiene based propellants, a facile sequential polymerization approach was used to prepare an energetic hybrid polymer network by stepwise curation.

A kind of bonding functional energetic thermoplastic elastomers based on glycidyl azide polymer

2016 ◽  
Vol 48 (8) ◽  
pp. 728-738 ◽  
Author(s):  
Zaijuan Zhang ◽  
Nan Luo ◽  
Jingke Deng ◽  
Zhen Ge ◽  
Yunjun Luo
Keyword(s):  
Mechanical Properties ◽  
Thermoplastic Elastomers ◽  
Work Of Adhesion ◽  
Solid Propellants ◽  
Glycidyl Azide Polymer ◽  
Chain Extenders ◽  
Glycidyl Azide

A kind of bonding functional energetic thermoplastic elastomers (ETPEs) were synthesized as the binder of solid propellants using the mixture of chain extenders including diethyl bis(hydroxymethyl) malonate (DBM). The results showed that the mechanical properties of ETPEs decreased with increasing percent of DBM in the chain extenders. On the contrary, the work of adhesion between solid ingredients hexogen (RDX) and ETPEs increased. In order to test the comprehensive impacts of two elements, the RDX/ETPE propellants were prepared. The results showed when the percent of DBM was 25%, the overall properties of the propellants were optimum.

Energetic interpenetrating polymer network based on orthogonal azido–alkyne click and polyurethane for potential solid propellant

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64478-64485 ◽  
Author(s):  
Abbas Tanver ◽  
Mu-Hua Huang ◽  
Yunjun Luo ◽  
Syed Khalid ◽  
Tariq Hussain
Keyword(s):  
Low Temperature ◽  
Mechanical Strength ◽  
Solid Propellant ◽  
Polymer Network ◽  
Aerospace Industry ◽  
Interpenetrating Polymer Network ◽  
Glycidyl Azide Polymer ◽  
Energetic Polymer ◽  
Glycidyl Azide

High energetic propellants with synergistic mechanical strength are the prerequisites for aerospace industry and missile technology; though glycidyl azide polymer (GAP) is a renowned and a promising energetic polymer which shows poor mechanical and low-temperature properties.

Structure and mechanical properties of fluorine-containing glycidyl azide polymer-based energetic binders

2017 ◽  
Vol 66 (9) ◽  
pp. 1318-1323 ◽  
Author(s):  
Minghui Xu ◽  
Zhongxue Ge ◽  
Xianming Lu ◽  
Hongchang Mo ◽  
Yueping Ji ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glycidyl Azide Polymer ◽  
Glycidyl Azide

Compatibility of energetic plasticizers with the triblock copolymer of polypropylene glycol-glycidyl azide polymer-polypropylene glycol (PPG-GAP-PPG)

2020 ◽  
Vol 40 (10) ◽  
pp. 797-805
Author(s):  
Fahimeh Ghoroghchian ◽  
Yadollah Bayat ◽  
Fatemeh Abrishami
Keyword(s):  
Mechanical Properties ◽  
Triblock Copolymer ◽  
Polypropylene Glycol ◽  
Scanning Calorimetry ◽  
Glycidyl Azide Polymer ◽  
Sem Images ◽  
Rheological Analysis ◽  
Vacuum Stability Test ◽  
Energetic Plasticizers ◽  
Glycidyl Azide

AbstractGlycidyl azide polymer (GAP) is well known as an energetic prepolymer, but its application as a binder in propellants is limited due to its relatively high glass transition temperature and relatively poor mechanical properties. Copolymerization of GAP with polypropylene glycol (PPG) has been shown to improve GAPs properties because of the good thermal and mechanical properties of PPG. In this research we synthesized triblock copolymer of PPG-GAP-PPG and the compatibilities of this copolymer were investigated with energetic plasticizers (20% w/w) n-butyl nitroxyethylnitramine (BuNENA), trimethylolethane trinitrate (TMETN), and butanetriol trinitrate (BTTN) by solubility parameter, differential scanning calorimetry (DSC), rheological analysis, scanning electron microscopy (SEM) and vacuum stability test (VST). The DSC results showed that BuNENA had better compatibility with the triblock copolymer in comparison to TMETN and BTTN. It reduced the Tg of PPG-GAP-PPG from −58 to −63 °C. The rheological analysis was in good agreement with the DSC results obtained for the compatibility of the plasticizers. In the case of the addition of 20% w/w BuNENA, the viscosity of copolymer/plasticizer decreased from 550 to 128 mPa s, indicating appropriate compatibility of plasticizer with the copolymer. SEM images showed a better distribution of BuNENA in the copolymer matrix.

Sign in / Sign up

Export Citation Format

Share Document