Influence of Hydroxyl Content on the Functionality Distribution and Gumstock Properties of Polybutadiene

Ninan, K. N.; Balagangadharan, V. P.; Devi, K. Ambika; Catherine, Korah Bina

doi:10.1007/978-1-4615-3856-1_67

Cited by 2 publications

(4 citation statements)

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“…As shown in Table 1, for four samples of HTPB with varying hydroxyl content and molecular weights the gumstock properties (mechanical properties and sol content) cannot be related to functionality distribution as would have been possible in samples of similar hydroxyl value and molecular weight. Gumstock properties depended more on the hydroxyl content [77]. Fillers influence mechanical properties.…”

Section: Mechanical Properties Of Htpb Liners For Composite Propellantsmentioning

confidence: 99%

“…In another study, five different HTPB prepolymers with similar OH numbers gave propellant mechanical properties in a few instances, contrary to the predicted values even though the NCO/OH ratio (R ratio) was within 0.7-0.9. This highlights the attribution of the molar mass and the variation of the molar mass distribution as the root causes for the variation/ uncertainty in the cured mechanical properties of the propellant [77]. In every case, mechanical properties should be measured according to ASTM or other accepted standards, as reported [75].…”

Section: Mechanical Properties Of Htpb Liners For Composite Propellantsmentioning

confidence: 99%

“…Dilsiz and Ünver [76] have shown that enhancing the crosslink densities of liner via a trifunctional aziridine crosslinking agent inhibited migration. Gercel et al [77] found that by using the butylene-imine trimesoylaziridine (BITA) binding promoter in optimized amounts of 1.0 and 1.5 wt % by weight in the elastomer compositions, it is possible to optimize the adhesive and bonding properties. They compared BITA with tris[1-2-methylaziridinyl] phosphine oxide (MAPO).…”

Section: Adhesion Of Htpb Liner To Insulator and Propellantmentioning

confidence: 99%

“…Gercel et al. [77] found that by using the butylene‐imine trimesoylaziridine (BITA) binding promoter in optimized amounts of 1.0 and 1.5 wt % by weight in the elastomer compositions, it is possible to optimize the adhesive and bonding properties. They compared BITA with tris[1‐2‐methylaziridinyl] phosphine oxide (MAPO).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Properties of Hydroxyl‐Terminal Polybutadiene (HTPB) and Its Use as a Liner and Binder for Composite Propellants: A Review of Recent Advances

Amado

Ross

Murakami

et al. 2022

Propellants Explo Pyrotec

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This paper reviews hydroxyl-terminal polybutadiene (HTPB) used as liner and binder for composite propellants, applied in rocket motors studied throughout the last decades, emphasizing the recent advances. The contribution aims to show the importance of HTPB in the propellant composition and on the liner coating of the rocket motor, which is in contact with the propellant grain. This paper also shows that many researchers have thoroughly studied several properties of HTPB, which are rele-vant to its role in liners and propellants. We have also reviewed analytical techniques such as Fourier Transform Infrared Spectroscopy (FTIR) as a characterization technique for HTPB and HTPB-based polyurethanes. Reflection and transfectants FTIR may be a future trend in studies about polymeric matrices for liners and propellants, and in the area of propellant formulations that use energetic binders, graphene and nanomaterials.

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Section: Mechanical Properties Of Htpb Liners For Composite Propellantsmentioning

confidence: 99%

Section: Mechanical Properties Of Htpb Liners For Composite Propellantsmentioning

confidence: 99%