A polymer-based molten explosive

Abstract

The invention discloses a polymer-based molten explosive to solve the problems of low detonation velocity and oil leakage in the prior art. The invention is composed of 6.5% of butanediol-succinic acid-adipic acid copolymer (PBSA), 3.5% of fluorine oil, 65% of octogold and 25% of metal powder. The charge density of the present invention is not less than 1.75g / cm 3 ;The detonation heat is not lower than 7600J / g, the detonation velocity is 7800m / s, and there is no oil leakage problem at -50°C-95°C.

Description

technical field

[0001] The present invention relates to a polymer-based molten explosive, which is mainly used for general-purpose blasting warheads. Background technique

[0002] With the development of polymers, combining polymers with energetic crystals has become an important direction for the development of explosives. In the 1960s and 1970s, thermosetting polymers such as epoxy resin and polyurethane were introduced into explosives to form thermosetting explosives. This explosive has good mechanical properties, energy properties and environmental adaptability, but because of the crosslinking characteristics of thermosetting resins, thermosetting explosives There are problems such as long production cycle, sensitivity to ambient temperature and humidity, poor repeatability between batches, and difficulty in recycling waste materials. The patent "explosive for penetrating warhead" ZL 201010047787.9 has solved the above problems, but it also has low detonation velocity an...

Examples

Embodiment 1

[0012] The present invention is carried out with reference to the following composition by mass: butanediol-succinic acid-adipic acid copolymer (PBSA) 6.5%, fluorine oil 3.5%, octogold 65%, aluminum powder 25%.

[0013] (1) Raw material pretreatment

[0014] Add butanediol-succinic acid-adipic acid copolymer and fluorine oil into a high-speed rotary mixer according to the formula ratio, mix for 120min at 100°C and 800r / min, and discharge for use.

[0015] Oktogold was placed at 60°C for 72h, and aluminum powder was placed at 60°C for 48h.

[0016] (2) Syrup preparation

[0017] First, add 80.0g of the liquid phase prepared in step 1 and 200g of aluminum powder into the mixer, mix at 120°C for 30 minutes, and finally add 520g of octogold, and continue mixing for 90 minutes under vacuum at 120°C to obtain a uniformly mixed material .

Embodiment 2

[0019] The present invention is carried out with reference to the following composition by mass percentage: butanediol-succinic acid-adipic acid copolymer (PBSA) 6.5%, fluorine oil 3.5%, octogold 65%, boron powder 25%.

[0020] (1) Raw material pretreatment

[0021] Add butanediol-succinic acid-adipic acid copolymer and fluorine oil into a high-speed rotary mixer according to the formula ratio, mix for 120min at 100°C and 800r / min, and discharge for use.

[0022] Oktogold was placed at 60°C for 72h, and boron powder was placed at 60°C for 48h.

[0023] (2) Syrup preparation

[0024] First, add 80.0g of the liquid phase prepared in step 1 and 200g of boron powder into the mixer, mix at 120°C for 30 minutes, and finally add 520g of octogold, and continue mixing for 90 minutes under vacuum at 120°C to obtain a uniformly mixed material .

technical field

[0001] The present invention relates to a polymer-based molten explosive, which is mainly used for general-purpose blasting warheads. Background technique

[0002] With the development of polymers, combining polymers with energetic crystals has become an important direction for the development of explosives. In the 1960s and 1970s, thermosetting polymers such as epoxy resin and polyurethane were introduced into explosives to form thermosetting explosives. This explosive has good mechanical properties, energy properties and environmental adaptability, but because of the crosslinking characteristics of thermosetting resins, thermosetting explosives There are problems such as long production cycle, sensitivity to ambient temperature and humidity, poor repeatability between batches, and difficulty in recycling waste materials. The patent "explosive for penetrating warhead" ZL 201010047787.9 has solved the above problems, but it also has low detonation velocity an...

Examples

Embodiment 1

[0012] The present invention is carried out with reference to the following composition by mass: butanediol-succinic acid-adipic acid copolymer (PBSA) 6.5%, fluorine oil 3.5%, octogold 65%, aluminum powder 25%.

[0013] (1) Raw material pretreatment

[0014] Add butanediol-succinic acid-adipic acid copolymer and fluorine oil into a high-speed rotary mixer according to the formula ratio, mix for 120min at 100°C and 800r / min, and discharge for use.

[0015] Oktogold was placed at 60°C for 72h, and aluminum powder was placed at 60°C for 48h.

[0016] (2) Syrup preparation

[0017] First, add 80.0g of the liquid phase prepared in step 1 and 200g of aluminum powder into the mixer, mix at 120°C for 30 minutes, and finally add 520g of octogold, and continue mixing for 90 minutes under vacuum at 120°C to obtain a uniformly mixed material .

Embodiment 2

[0019] The present invention is carried out with reference to the following composition by mass percentage: butanediol-succinic acid-adipic acid copolymer (PBSA) 6.5%, fluorine oil 3.5%, octogold 65%, boron powder 25%.

[0020] (1) Raw material pretreatment

[0021] Add butanediol-succinic acid-adipic acid copolymer and fluorine oil into a high-speed rotary mixer according to the formula ratio, mix for 120min at 100°C and 800r / min, and discharge for use.

[0022] Oktogold was placed at 60°C for 72h, and boron powder was placed at 60°C for 48h.

[0023] (2) Syrup preparation

[0024] First, add 80.0g of the liquid phase prepared in step 1 and 200g of boron powder into the mixer, mix at 120°C for 30 minutes, and finally add 520g of octogold, and continue mixing for 90 minutes under vacuum at 120°C to obtain a uniformly mixed material .