Malleable Solid Explosive Using Polyol Polymer Binder
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Solution Overview
Problem
Current plastic explosives require plasticizers for malleability and mechanical resistance, which do not contribute to the explosive effect and complicate the manufacturing process, especially when used in larger masses.
Innovation Solution
A malleable solid explosive composed of at least 98% powdery explosive charge and a liquid polyol polymer, without plasticizers, allowing for shaping and stability from -40°C to 70°C, achieved by molding or cutting a paste of these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If plasticizers are added to plastic explosives to improve malleability and mechanical resistance, then the explosive becomes more workable and structurally sound, but the manufacturing process becomes more complex and the explosive performance is diluted
Solution Approach 1:
The patent removes the plasticizer component entirely from the explosive formulation. Instead of adding plasticizers to achieve malleability, the invention uses a binder polymer that provides structural integrity without requiring separate plasticizer additives, thereby simplifying the manufacturing process while maintaining workability
Solution Approach 2:
The binder polymer serves multiple functions simultaneously: it acts as the structural matrix, provides malleability through its rheological properties, and eliminates the need for separate plasticizers. This multi-functional approach reduces the number of components and simplifies manufacturing
2Strength
If plasticizers are included in plastic explosives to enhance mechanical resistance, then the explosive maintains structural integrity, but the explosive effect is diluted due to the inert nature of plasticizers
Solution Approach 1:
The invention extracts and removes the plasticizer component that dilutes the explosive charge. By using a binder polymer that provides mechanical strength without being inert, the formulation achieves high explosive charge concentration (95-99% explosive material) while maintaining structural integrity
Solution Approach 2:
The patent uses a composite formulation of explosive charge particles embedded in a binder polymer matrix. This composite structure provides both high explosive concentration and mechanical strength, as the binder polymer reinforces the explosive particles rather than diluting them
3Quantity of substance
If plastic explosives are used in large masses without packaging, then the explosive can be stored and transported, but the explosive deforms under gravity due to insufficient cold plasticity
Solution Approach 1:
The invention changes the rheological parameters of the binder polymer to provide adequate cold plasticity. The polymer is selected and formulated to maintain its malleable properties at low temperatures (-40°C to +70°C), allowing large explosive masses to be stored and transported without deformation while maintaining shape stability
4Ease of operation
If rubber binders and plasticizers are used in plastic explosives, then the explosive achieves plastic nature and workability, but the manufacturing process becomes complicated due to controlled dosing requirements
Solution Approach 1:
The patent extracts and eliminates the plasticizer component that requires controlled dosing. The binder polymer alone provides the necessary workability and structural properties, simplifying the manufacturing process to a single mixing step without the complexity of dosing multiple components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides superior rheological qualities and performance, enabling the explosive to be used in large masses without deformation, with enhanced mechanical strength and simplified manufacturing compared to traditional plastic explosives.
Implementation Method 1
a liquid, chosen from the polyol polymers... which serves as a binder for the powdery explosive charge
Implementation Method 2
The plasticizer (generally present at mass rates of 2 to 5%) has the role of conferring on plastic explosives their malleability and a better mechanical resistance
Data Source
AI summary
One subject of the present invention is a malleable solid explosive in the form of a solid block consisting, for at least 98% of its mass, of a powdered explosive charge and a liquid chosen from polyol polymers from the group of polyol polyisobutylenes, polyol polybutadienes, polyol polyethers, polyol polyesters and polyol polysiloxanes, the number-average molecular weight of which is between 500 and 10 000, and blends thereof. Another subject of the invention is a method for obtaining such an explosive.