A kind of trifunctional end alkenyl energetic adhesive and its synthesis method

A technology of trifunctionality and synthesis method, which is applied in the direction of polyether adhesives, adhesive types, adhesives, etc., and can solve the problems of elastomers without energy
CN108559434BActive Publication Date: 2020-10-27XIAN MODERN CHEM RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN MODERN CHEM RES INST
Publication Date
2020-10-27

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Abstract

The invention discloses a three-degree-of-functionality terminal alkenyl energetic adhesive and a synthesis method thereof. The structural formula of the three-degree-of-functionality terminal alkenylenergetic adhesive is shown in a formula (I). The synthesis process comprises the following steps: taking three-degree-of-functionality poly3-methyl nitrate-3-methoxy heteroxane as a raw material, adding 3-propylene isocyanate and performing addition reaction to obtain the three-degree-of-functionality terminal alkenyl energetic adhesive. The synthesis method is convenient to prepare on a large scale, and double bonds give room-temperature curing ability to the adhesive. The three-degree-of-functionality terminal alkenyl energetic adhesive is mainly applied to a composite solid propellant. The formula is as shown in the description, wherein m is an integer of 5 to 10.
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Description

technical field

[0001] The invention relates to a trifunctional alkenyl-terminated energetic adhesive, which belongs to the field of solid propellants. Background technique

[0002] At present, the isocyanate curing system has the problem of high curing temperature. The isocyanate curing system used in the curing of hydroxyl-terminated polybutadiene (HTPB) can be cured to produce polyurethane, and the curing temperature is high and sensitive to moisture. For example, the isocyanate curing agent system composed of toluene diisocyanate (TDI) and HTPB has a curing temperature of 60 ℃.

[0003] In order to solve the problem of high curing temperature and sensitivity to moisture in traditional curing methods, room temperature curing technology of nitrile oxide was developed. Due to the high activity of the curing agent nitrile oxide, it is very easy to undergo a curing crosslinking reaction with the double bond-containing adhesive, so the curing temperature of this curing syste...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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