Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Enhancing the performance of HTPB-IPDI-based polyurethane composite liner through effective carbon black dispersion**
Date
2023-01-01
Author
Aslan, Onurcan
Atalar, Taner
Atınç Yılmaz, Gürkan
Özkan, Necati
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
1
views
0
downloads
Cite This
This study aims to improve the dispersion of Carbon Black (CB) filled Hydroxyl-Terminated Polybutadiene (HTPB)-Isophorone Diisocyanate (IPDI) based polyurethane liner by both adding a dispersant and developing a production process to obtain improved mechanical, rheological, thermal, and adhesion properties. Printex-U (CB1) and Thermax N-991 (CB2) carbon blacks were used as fillers. Three different dispersants, which are BYK 9076 (D1), BYK 9077 (D2), and BYK Silclean 3700 (D3) were added to the liner formulation at various amounts. BYK 9076 (D1) was found as the most effective dispersant due to its bifunctional chemical structure. By adding 2 wt.% of BYK 9076 (D1) dispersant to the polyurethane liner comprising 10 wt.% CB1, viscosity was reduced by 45 %, and tensile strength and elongation at break were improved from 1.77 MPa to 1.88 MPa and from 375 % to 385 % respectively. The dispersion of the CB in the polyurethane liner was further improved by the ultrasonication process and tensile strength and elongation at break were increased to 2.03 MPa and 425 %, respectively. This process also contributed to an improved Limiting oxygen index (LOI), elevating it from 20 % to 22 % initially and further by 25 % through ultrasonication. Scanning Electron Microscopy (SEM) verified that the addition of D1 dispersant and ultrasonication effectively reduced CB particle agglomeration. The migration of plasticizer was also assessed over 12 months through bonding testing, TGA, and FTIR analysis. It was noticed that the effective dispersion of CB particles made the liner more resistant to the plasticizer migration.
Subject Keywords
carbon black
,
dispersion
,
plasticizer migration
,
rocket motor liner
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85177575896&origin=inward
https://hdl.handle.net/11511/106825
Journal
Propellants, Explosives, Pyrotechnics
DOI
https://doi.org/10.1002/prep.202300107
Collections
Graduate School of Natural and Applied Sciences, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
O. Aslan, T. Atalar, G. Atınç Yılmaz, and N. Özkan, “Enhancing the performance of HTPB-IPDI-based polyurethane composite liner through effective carbon black dispersion**,”
Propellants, Explosives, Pyrotechnics
, pp. 0–0, 2023, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85177575896&origin=inward.