http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-980009430-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C06D5-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C06B45-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C06D5-00 |
| filingDate | 1996-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1998-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-980009430-A |
| titleOfInvention | Propellants using a polyethylene glycol-based binder and a nitramine-based oxidizing agent and a method for producing the same |
| abstract | The present invention relates to a propellant using a nitrile-based oxidizing agent to reduce the color smoke of a combusted gas while using a polyethylene glycol as a prepolymer. Herein, the present invention relates to a mixed solid propellant comprising a large amount of a nitrided plasticizer for promoting energy such as the propellant specific power and a method for producing the same.n n n The present invention also relates to a process for preparing a mixed solid propellant comprising the steps of mixing and dissolving polyethylene glycol, a solid powder, with a nitrided plasticizer, adding a stabilizer, and uniformly mixing a neutral polymer type adhesive in order to improve the mechanical properties of the final product Followed by further mixing of the oxidizer in the form of solid powder and mixing of the curing agent.n n n Mixed type solid propellants using polyethylene glycol and nitramine oxidizer have very low coloring of the burned gas and have high performance because of high propellant propellant. Therefore, It is used as solid fuel.n n n Particularly, since polyethylene glycol having a molecular weight of about 3000 to 8000 is a solid state powder at room temperature, it is phase-changed to liquid phase by raising the temperature to be mixed with a curing agent to be cured, One or more kinds of nitrided liquid plasticizers capable of increasing the density, stabilizers for enhancing the aging properties of the propellant and curing auxiliaries are mixed together and heated to about 55 to 65 ° C to obtain a uniform liquid state. This solution is referred to as a premix solution, in which a neutral polymer type pressure-sensitive adhesive capable of enhancing the mechanical properties of the propellant is dissolved and dissolved in a suitable solvent, then the solvent is removed by vacuum, and a nitrile-based oxidizing agent in the form of solid powder and other inorganic The oxidizing agent is mixed, and a combustion stabilizer is added to the propellant to improve the combustion characteristics of the propellant. Thereafter, the curing agent and the curing auxiliary agent are added and mixed to form a hardened propellant, which is cast into a desired shape mold and cured for 5 to 10 days in a curing chamber controlled at a desired temperature of 20 to 60 DEG C, Propellants are made.n n n Since the premixed liquid composed mainly of polyethylene glycol and a nitriding plasticizer is a locally sourced material, the curing reaction of the binder is affected by the acidity of the mixture before the addition of the solution and the curing agent and the acidity of various materials used as the raw material of the propelling material, The pot life is controlled, which indicates the time for casting the uncured propellant into a desired mold, so that the acidity of the premixed liquid is adjusted in advance with the curing aid, and then, in the final mixing step, Another feature is the addition of curing auxiliaries to control the desired port life. Since the mixed type solid propellant using the conventional hydroxy terminated polybutadiene type binder is nonpolar, it is difficult to control the curing reaction rate and port life because the change of the curing reaction rate due to the acidity of the various raw materials used in the propellant is very small. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101532637-B1 |
| priorityDate | 1996-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.