ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Seven unsaturated chloropolyesters based on tetrachlorophthalic anhydride (TCPAn) maleic anhydride (MAn), and propylene glycol (PG) (designated as CP-1) and TCPAn, MAn, and polyethylene glycol molecular weight 200 (PEG-200) (designated as CP-2), and TCPAn, MAn, and mixed glycols (PG & PEG-200 in different molar proportions) and designated as CPM-2, CPM-4, CPM-6, etc. (depending upon molar proportions) have been synthesized. The flameretardant characteristics have been assigned by measuring heat resistance (loss in weight) and flame retardance (burning rate), and it is found that in these chloropolyesters thermal stability increases as chlorine percentage increases. In addition, these chloropolyesters have been characterized for gel time, exotherm peak temperature, tensile strength, percentage elongation and bond strength, nitroglycerine absorption, and cross-link density. Based on these properties, CPM-9 with 30% styrene (designated as CPM-9s) has been selected for inhibition and static evaluation trials, after conditioning at ambient, cold (-40°C), and hot (+50°C) temperatures. The nature of pressure-time profiles indicate the suitability of “CPM-9s” for the inhibition of double-base (containing 2-NDPA) propellants.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1986.070320535
