Effect of fillers and fire retardant compounds on hydroxy terminated polybutadiene based insulators

Defence Science Journal

S. D. Kakade¹  M. Gupta¹  U. B. Kadam¹  S. B. Navale¹ 

[1] High Energy Materials Research Laboratory, Pune

关键词: Insulators;    Explosives;    Military technology;    Polymeric binders;    Fillers;    Propellants;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

A series of polyurethane compositions havebeen formulated using hydroxy-terminated polybutadiene as polymericbinder and carbon black as a major filler. Various binder-to-fillerratios of the formulations were evaluated to get calendered sheets. Theformulations have been characterised for pot-life and rollability andthe calendered sheets for mechanical and thermal properties, bUm rate,glass transition temperature, shore hardness and density . The differentfillers tried were varieties of carbon black as a major filler; metaloxides, silicates and organic compounds; and fire retardants, such aszinc borate, sodium metaborate, ammonium dihydrogen phosphate andantimony trioxide. The structure and morphology of the fillers have beencorrelated with the properties. The optimised composition has beenevaluated in an end-burning motor, as an insulator for case-bondedapplication, using a typical composite propellant. The results ofinterface bonding between the propellant and the insulator have alsobeen presented.

【 授权许可】

Unknown