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一、前言固体发动机的使用期限是火箭导弹类武器的主要技术经济指标之一。使用期限短,势必造成武器装备更换频繁,但若使用业已变质的,或是不正确地延期使用发动机,则会使发动机不能正常工作,甚至导致危险。丁羟推进剂的端羟基聚丁二烯合成胶,其大分子主链上含有不饱和双键(即使在硫化以后仍然存在),使得丁羟胶易和氧、臭氧及其它活性物质反应,从而产生大分子链的断裂或
I. Introduction The use of solid engine life is one of the main technical and economic indicators of rocket and missile weapons. Short period of use will inevitably lead to frequent replacement of weapons and equipment, but if the use has been spoiled, or improper extension of the engine, it will make the engine does not work, or even dangerous. Butyl Hydroxyl Propellant Hydroxyl polybutadiene synthetic gum, whose macromolecule backbone contains an unsaturated double bond (which is still present even after vulcanization), makes it easier to react with oxygen, ozone, and other active substances Produce macromolecular chains broken or