Method for representation of surface and interface characteristics of azide polyether elastomer

A technology of interface characteristics, nitrogen polyether, applied in the direction of surface/boundary effect, measurement device, instrument, etc., can solve the big difference between HTPB and NEPE propellant, lack of quantitative characterization method of azide polyether propellant, filler-matrix interface The mechanism of action is difficult to determine and other problems, to achieve the effect of easier instrument conditions, less error in test data, and easy operation
CN109406344AInactive Publication Date: 2019-03-01SHANGHAI AEROSPACE CHEM ENG INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI AEROSPACE CHEM ENG INST
Publication Date
2019-03-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for representation of surface and interface characteristics of azide polyether elastomer. The method includes: a plurality of azide polyether films containing different AP, RDX, HMX and aluminum powder, and a dynamic contact angle process is employed to test the contact angles of the six different reference solutions on the surfaces of the different azide polyether films, the reference solutions including polar reference solutions of water, ethylene glycol and formamide and nonpolar reference solutions of diiodomethane, alpha-bromonaphthalene and cyclohexane;wherein the polar reference solutions and nonpolar reference solutions are grouped in pairs, and calculation is carried out to acquire the surface energy of the azide polyether films, with different packing. In the method, the acquired solid surface energy used for evaluating the packing-substrate surface and interface characteristics of an azide polyether propellant has excellent effect. The method is simple and is high in test precision.
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Description

technical field

[0001] The invention relates to the interaction mechanism of the azide polyether propellant filler-matrix interface, in particular to a method for characterizing the surface and interface characteristics of the azide polyether matrix-filler. Background technique

[0002] Azide polyether propellant is a high-performance solid propellant with high energy, insensitivity, and low characteristic signal. It meets the needs of various advanced missile weapons and is the focus of current research in the industry. PBT propellant is a composite energetic material with polyurethane elastomer as the binder matrix, and the adjustment of mechanical properties has become one of the key technologies in the research and development of this type of propellant. Because the PBT side chain contains a large number of rigid azide groups, the polymer molecular chain is short, the flexibility is poor, especially the low temperature mechanical properties, which have become the technic...

Claims

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