HTPB-based polyurethanes for inhibition of composite-modified double-base (CMDB) propellants

✍ Scribed by D.C. Gupta; P.K. Divek Ar; V.K. Phadke

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 162 KB
• Volume: 65
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19970711)65:2<355::aid-app16>3.0.co;2-z

✦ Synopsis

Polyurethanes were synthesized by the reaction of hydroxy-terminated polybutadiene (HTPB) and diisocyanates such as toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HMDI), and isophorone diisocyanate (IPDI). Carbon black and antimonytrioxide (Sb 2 O 3 ) were incorporated into these formulations as fillers. Dioctyladipate (DOA) and trimethyllolpropane (TMP) were also added as a plasticizer and crosslinker, respectively. These polyurethanes were investigated as inhibitors for composite-modified double-base (CMDB) propellants. Due to superior mechanical properties, thermal properties, and low nitroglycerine absorption, HTPB-MDI-TMP-derived filled polyurethane was selected and evaluated as an inhibitor for a CMDB propellant.