CN107941655A - The gel simulants formula and preparation method of rocket engine hydrazine gel propellant - Google Patents
The gel simulants formula and preparation method of rocket engine hydrazine gel propellant Download PDFInfo
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- CN107941655A CN107941655A CN201711106407.2A CN201711106407A CN107941655A CN 107941655 A CN107941655 A CN 107941655A CN 201711106407 A CN201711106407 A CN 201711106407A CN 107941655 A CN107941655 A CN 107941655A
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- simulated solution
- gelling agent
- simulants
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- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000003380 propellant Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000009472 formulation Methods 0.000 title description 3
- 239000000499 gel Substances 0.000 claims abstract description 89
- 239000003349 gelling agent Substances 0.000 claims abstract description 43
- 239000011159 matrix material Substances 0.000 claims abstract description 43
- 239000004034 viscosity adjusting agent Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 18
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 17
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 17
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 7
- 229920001817 Agar Polymers 0.000 claims abstract description 6
- 108010010803 Gelatin Proteins 0.000 claims abstract description 6
- 239000008272 agar Substances 0.000 claims abstract description 6
- 229920000159 gelatin Polymers 0.000 claims abstract description 6
- 239000008273 gelatin Substances 0.000 claims abstract description 6
- 235000019322 gelatine Nutrition 0.000 claims abstract description 6
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 6
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical class O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 5
- -1 Carmomer Substances 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 42
- 230000006798 recombination Effects 0.000 claims description 14
- 238000005215 recombination Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920000858 Cyclodextrin Polymers 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 abstract description 9
- 230000036541 health Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 11
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000005543 nano-size silicon particle Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- RHUYHJGZWVXEHW-UHFFFAOYSA-N 1,1-Dimethyhydrazine Chemical compound CN(C)N RHUYHJGZWVXEHW-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0052—Preparation of gels
- B01J13/0056—Preparation of gels containing inorganic material and water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0052—Preparation of gels
- B01J13/0065—Preparation of gels containing an organic phase
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/0006—Calibrating, controlling or cleaning viscometers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention relates to a kind of gel simulants formula of rocket engine hydrazine gel propellant and preparation method thereof, formula includes simulated solution matrix, gelling agent and viscosity modifier, simulated solution matrix is water, alcohol or water and the mixture of alcohol, and simulated solution substrate quality concentration range is 90~99%；Gelling agent is hydroaropic substance, select hydrophilic nano silica, Carmomer, agar, gelatin, cyclodextrine derivatives and nano HA/PVA it is composite porous in one kind, gelling agent mass concentration scope is 0.1~5%；Viscosity modifier is hydroaropic substance, selects one kind in hydroxyethyl cellulose, carboxymethyl cellulose, and viscosity modifier mass concentration scope is 0.1~5%.Gel simulants are prepared by multistep complex technique under certain condition in simulated solution matrix, gelling agent and viscosity modifier.The present invention solves the problem of existing gel viscosity meter field calibration device research process, hydrazine gel propellant produces considerable influence to the safety and health of scientific research personnel.
Description
Technical field
The present invention relates to the preparation of the gel simulants formula and gel simulants of a kind of rocket engine hydrazine gelling agent
Method.
Background technology
Gel propellant has the advantages of liquid propellant and solid propellant concurrently, thus since nearly half a century both at home and abroad all
Making great efforts to develop this new concept propulsion agent, and thus developing advanced colloid Push Technology (gel propulsion), i.e. " spirit
Ingeniously " Push Technology (smart propulsion).The U.S. has successfully carried out ground experiment and the flight of colloid Push Technology
Experiment.The gel propellant that China is applied to Space radiation at present is mainly hydrazine gel propellant, as DT-3 gels push away
Into agent.There are the gel propellant of hydrazine -70, UDMH gel propellants etc. in research.
Gel propellant viscosity data is a very important parameter, and gel propellant is promoted different from conventional liq
The factors such as agent, rheological behavior is stressed, environment temperature, vibration influence, while rheological behavior also significantly affects atomization
Pattern, using standard viscosity liquid metrology and measurement research and data analysis, it is possible to achieve the field calibration of in-line viscometer, fills
Divide systematic error caused by eliminating site environment change, improve in-line viscometer measurement accuracy, accurately, objectively reflect attitude control
The performance indicator of engine, significantly improves the parameter measurement level of gel propellant, is provided for its flow behavior comprehensive, solid
Performance data.Therefore one during accurate viscosity data is just developed as gel propellant under different temperatures experimental condition is obtained
Important research content.
There are the problems such as toxicity big (high poison I~II grade) and inflammable and explosive, environmental pollution for hydrazine gel propellant.But
, it is necessary to carry out viscosity school to a large amount of gel propellant media in the research of liquid-propellant rocket engine gel viscosity meter field calibration device
Quasi- experiment, if will be to safe and environment-friendly and healthy generation considerable influence using existing hydrazine gel propellant.Therefore, develop and make
With hydrazine gel propellant simulated solution, gel viscosity meter field calibration device is studied and application plays an important roll.
The content of the invention
In order to overcome existing gel viscosity meter field calibration device research process, hydrazine gel propellant is to scientific research personnel
Safety and health the problem of producing considerable influence, the present invention provides a kind of gel mold of rocket engine hydrazine gel propellant
Intend formula of liquid and preparation method.
The technical solution of the present invention is as follows：
The gel simulants formula of rocket engine hydrazine gel propellant of the present invention, it is characterized in that：
Including simulated solution matrix, gelling agent and viscosity modifier；
The simulated solution matrix for water, alcohol or water and alcohol mixture, simulated solution substrate quality concentration range for 90~
99%；
The gelling agent is hydroaropic substance, selects hydrophilic nano silica, Carmomer, agar, gelatin, cyclodextrin
One kind during derivative, nano HA/PVA are composite porous, gelling agent mass concentration scope are 0.1~5%；
The viscosity modifier is hydroaropic substance, selects one kind in hydroxyethyl cellulose, carboxymethyl cellulose, viscosity
Conditioning agent mass concentration scope is 0.1~5%.
Further, in order to play the role of preferable viscosity-adjusting agent, the viscosity modifier is hydroxyethyl cellulose, hydroxyl second
The molecular weight of base cellulose is 10,000~400,000.
Meanwhile the present invention provides the gel simulants formula system using above-mentioned rocket engine hydrazine gel propellant
The method of standby gel simulants, it is characterized in that, comprises the following steps：
1) under room temperature, normal pressure, in gel simulants matrix being slowly added to gelling agent is disperseed, and is stirred when disperseing；
2) after gelling agent is disperseed completely, continue to stir certain time, make to produce between gelling agent and simulated solution substrate molecule
Key key interacts, so as to erect network gel skeleton；
3) viscosity modifier is added, is disperseed while stirring, stirring certain time is further continued for after disperseing completely, simulates gel
Liquid compound system state reaches stable, and gel skeleton is further firm, and viscosity reaches stable.
Further, gelling agent jitter time in simulated solution matrix is 0.5~2h, and viscosity modifier is in simulated solution matrix
Middle jitter time is 0.5~2h, and three kinds of material recombination process mixings time are 5h, and gelling agent is real with simulated solution matrix recombination process
Row constant speed stirs, and stir speed (S.S.) is 200~600r/min, and viscosity modifier is carried out constant speed with simulated solution matrix recombination process and stirred
Mix, stir speed (S.S.) is 200~800r/min.
Matched somebody with somebody present invention also offers another using the gel simulants of above-mentioned rocket engine hydrazine gel propellant
The method that side prepares gel simulants, it is characterized in that, comprises the following steps：
1) under room temperature, normal pressure, in gel simulants matrix being slowly added to viscosity modifier is disperseed, and is stirred when disperseing
Mix；
2) after viscosity modifier disperses completely, continue to stir certain time, make viscosity modifier and simulated solution substrate molecule
Between produce the interaction of key key, so as to erect network gel skeleton；
3) gelling agent is added, is disperseed while stirring, stirring certain time is further continued for after disperseing completely, answers gel simulants
Close system status and reach stable, gel skeleton is further firm, and viscosity reaches stable.
Further, gelling agent jitter time in simulated solution matrix is 0.5~2h, and viscosity modifier is in simulated solution matrix
Middle jitter time is 0.5~2h, and three kinds of material recombination process mixings time are 5h, and gelling agent is real with simulated solution matrix recombination process
Row constant speed stirs, and stir speed (S.S.) is 200~600r/min, and viscosity modifier is carried out constant speed with simulated solution matrix recombination process and stirred
Mix, stir speed (S.S.) is 200~800r/min.
Compared with prior art, the present invention beneficial effect is：
1st, the present invention provides a kind of gel propellant simulation formula of liquid and preparation method thereof, according to the formula and preparation side
Simulated solution prepared by method can substitute hydrazine gel propellant, can be securely and reliably live school is carried out to gel viscosity meter
Standard, obtains transmission of quantity value, solves existing gel viscosity meter field calibration device research process hydrazine gel propellant to section
The problem of grinding the safety and health generation considerable influence of personnel.
2nd, the present invention is the calibration of the viscosity measurement of novel universal gel engine and new attitude control power set engine
Technology lays the foundation.
Brief description of the drawings
Fig. 1 is the rheological curve figure of embodiment 1；
Fig. 2 is the rheological curve figure of embodiment 2；
Fig. 3 is the rheological curve figure of embodiment 3；
Fig. 4 is the rheological curve figure of embodiment 4；
Fig. 5 is the rheological curve figure of embodiment 5；
Fig. 6 is the rheological curve figure of embodiment 6；
Fig. 7 is the rheological curve figure of embodiment 7；
Fig. 8 is the rheological curve figure of embodiment 8.
Embodiment
The present invention is described in detail below.
First, simulated solution performance requirement
The gel simulants simulation of the present invention is Hydrazine propellant, and the performance requirement to gel simulants is：
1st, under room temperature, normal pressure, which is non-newtonian fluid, is less than shear pressure in the pressure of use environment
When (i.e. yield stress), performance meets non-newtonian fluid rule；
2nd, range of viscosities is in 1000mPa.s~70000mPa.s；
3rd, physical property is stablized, in room temperature, normal pressure storage process, phenomena such as will not being layered, reunite, decomposing；
4th, good thermal stability, is respectively provided with good thermal adaptability, within this temperature range not at -50 DEG C~150 DEG C
It can reunite and be layered.
2nd, it is formulated
A, simulated solution matrix
The simulation of simulated solution matrix is hydrazine compound, selects hydroaropic substance, such as deionized water, alcohols.
B, gelling agent is screened
When selecting gelling agent, the polarity of gelling agent should be considered first, can be effectively uniformly compound with simulated solution matrix；
Its is secondary big specific surface area and high voidage, there is good dispersiveness and suspension and increasing in simulated solution matrix
Thick, thixotroping, strengthening action；It is to avoid placing generation layering, decomposition for a long time with the compound rear homeostasis of simulated solution matrix again
Phenomena such as.
Gelling agent can choose small molecule oxide, polymer substance, nanocomposite etc..Its polarity and simulated solution matrix
Polarity is similar, and is not chemically reacted with simulated solution matrix, can play gelling.Such as：Modified manometer silicon dioxide, fibre
Dimension element and its derivative, Carmomer, agar, gelatin, acrylic resin, starch derivatives, cyclodextrine derivatives, nano HA/PVA
It is composite porous etc..
B. viscosity modifier screens
The screening of viscosity modifier is identical with gelling agent, and viscosity modifier is sensitive to the response of gel simulants viscosity,
It is the important factor in order of viscosity change." viscosity modifier " is macromolecular cellulose substances, it is similar to simulated solution matrix
It is compatible, gel skeleton is not destroyed, plays the role of viscosity regulation, while play the role of gelling agent.
C. formula determines
Two kinds of materials of gelling agent and viscosity modifier do not chemically react mutually, and ratio is suitable.
3rd, it is to enumerate several specific embodiments to illustrate below, the percentage involved in embodiment is quality percentage
Than.
Embodiment 1
Selection hydrophilic nano silica is gelling agent, and carboxymethyl cellulose is viscosity modifier, gel simulants base
Body is deionized water and alcohol mixture.Under room temperature, normal pressure, 21.406kg deionized waters are injected in 50L reaction kettles, are slowly added
Enter 0.9% carboxymethyl cellulose carry out it is fully dispersed, jitter time 30min, stirs 1h afterwards.Add 1.8% dioxy
SiClx is disperseed, jitter time 30min, is stopped reaction after compound system stirring 20h, is stood 48h, measuring viscosity data is
18976mpa.s。
Embodiment 2
It is gelling agent to select Carmomer, and hydroxyethyl cellulose is viscosity modifier, and gel simulants matrix is deionized water.
Under room temperature, normal pressure, 21.01kg deionized waters are injected in 50L reaction kettles, are slowly added to 2.5% hydroxyethyl cellulose progress
Fully dispersed, jitter time 40min, stirs 2h afterwards.The Carmomer for adding 2% disperses, jitter time 30min, compound
Stop reaction after system stirring 24h, stand 48h, it is 52381mpa.s to measure viscosity data.
Embodiment 3
It is gelling agent to select agar, and carboxymethyl cellulose is viscosity modifier, and gel simulants matrix is glycerine.Often
Temperature, under normal pressure, inject 21.12kg glycerine in 50L reaction kettles, be slowly added to 2% agar carry out it is fully dispersed, when disperseing
Between 40min, stir 3h afterwards.The carboxymethyl cellulose for adding 2% disperses, jitter time 40min, compound system stirring
Stop reaction after 30h, stand 48h, it is 37680mpa.s to measure viscosity data.
Embodiment 4
Selection nano silicon dioxide is gelling agent, and hydroxyethyl cellulose is viscosity modifier, and gel simulants matrix is to go
Ionized water.Under room temperature, normal pressure, 21.56kg substrate mixtures are injected in 50L reaction kettles, are slowly added to 1% hydroxy ethyl fiber
Element is disperseed, and jitter time 40min, stirs 3h afterwards.Add 1% nano silicon dioxide it is fully dispersed, jitter time
For 40min, compound system stops reaction after stirring 30h, stands 48h, it is 25769mpa.s to measure viscosity data.
Embodiment 5
Selection nano silicon dioxide is gelling agent, and hydroxyethyl cellulose is viscosity modifier, and gel simulants matrix is to go
Ionized water.Under room temperature, normal pressure, 21.67kg matrixes are injected in 50L reaction kettles, be slowly added to 0.5% hydroxyethyl cellulose into
Row is scattered, and jitter time 40min, stirs 3h afterwards.Add 1% nano silicon dioxide it is fully dispersed, jitter time is
Stop reaction after 40min, compound system stirring 30h, stand 48h, it is 12302mpa.s to measure viscosity data.
Embodiment 6
It is gelling agent to select gelatin, and hydroxyethyl cellulose is viscosity modifier, and gel simulants matrix is deionized water.Often
Under temperature, normal pressure, 21.516kg matrixes are injected in 50L reaction kettles, the hydroxyethyl cellulose for being slowly added to 1.2% is disperseed,
Jitter time 40min, stirs 3h afterwards.Add 1% gelatin it is fully dispersed, jitter time 40min, compound system stirring
Stop reaction after 30h, stand 48h, it is 18691mpa.s to measure viscosity data.
Embodiment 7
It is gelling agent to select cyclodextrin, and hydroxyethyl cellulose is viscosity modifier, and gel simulants matrix is deionized water.
Under room temperature, normal pressure, 21.098kg matrixes are injected in 50L reaction kettles, the hydroxyethyl cellulose for being slowly added to 1.1% is divided
Dissipate, jitter time 40min, stirs 3h afterwards.Add 3% cyclodextrin it is fully dispersed, jitter time 40min, complex
Stop reaction after system stirring 30h, stand 48h, it is 35427mpa.s to measure viscosity data.
Embodiment 8
Selection nano HA/PVA be gelling agent, and hydroxyethyl cellulose is viscosity modifier, gel simulants matrix be go from
Sub- water.Under room temperature, normal pressure, 21.098kg matrixes are injected in 50L reaction kettles, are slowly added to 1% hydroxyethyl cellulose progress
Scattered, jitter time 40min, stirs 3h afterwards.Add 2% nano HA/PVA it is fully dispersed, jitter time 40min,
Stop reaction after compound system stirring 30h, stand 48h, it is 22202mpa.s to measure viscosity data.
The methods of concussion, ultrasound can also be used in multiphase recombination process, is equal by gelling agent and viscosity modifier and matrix
Even compound, recombination time is 1~30h.
4th, performance detection
1st, simulated solution viscosity test
Viscosity data in 1-8 of the embodiment of the present invention is measured using dedicated gel viscosity meter NDJ-4 type gyrators viscosity
Examination, can viscosimetric scope：2#Rotor：500mPa.s~100000mPa.s, test environment are 20 DEG C.
2nd, simulated solution rheology testing
Using 6000 rheometer test gel simulants of HAAKE RbeoStress viscosity with shear rate rheological characteristic
Energy.First with titer calibrate rheometer, then correction coefficient is modified, last sample viscosity with shear rate change
Figure.Each sample measures three times, each 100s.
By taking Fig. 1 as an example, can be seen that from rheological curve figure, shear rate from small to large when, the mobility of gel simulants
Can show as shear shinning, shear rate from large to small when, gel viscosity returns to original state, and meets non-newtonian fluid
Characteristic is identical with the mobile performance of hydrazine gel propellant.The curve map trend of Fig. 2 to Fig. 8 is identical with Fig. 1, no longer illustrates.
3rd, other performance
The simulated solution physical property of the present invention is stablized, and in room temperature, normal pressure storage process, will not be layered, reunite, decomposing etc. and show
As；Good thermal stability, is respectively provided with good thermal adaptability at -50 DEG C~150 DEG C, will not roll into a ball within this temperature range
Poly- and layering.
Claims (6)
1. the gel simulants formula of rocket engine hydrazine gel propellant, it is characterised in that：
Including simulated solution matrix, gelling agent and viscosity modifier；
The simulated solution matrix is water, alcohol or water and the mixture of alcohol, and simulated solution substrate quality concentration range is 90~99%；
The gelling agent is hydroaropic substance, selects hydrophilic nano silica, Carmomer, agar, gelatin, cyclodextrin to derive
One kind during thing, nano HA/PVA are composite porous, gelling agent mass concentration scope are 0.1~5%；
The viscosity modifier is hydroaropic substance, selects one kind in hydroxyethyl cellulose, carboxymethyl cellulose, viscosity-adjusting agent
Agent mass concentration scope is 0.1~5%.
2. the gel simulants formula of rocket engine hydrazine gel propellant according to claim 1, it is characterised in that：
The viscosity modifier is hydroxyethyl cellulose, and the molecular weight of hydroxyethyl cellulose is 10,000~400,000.
3. prepare gel using the gel simulants formula of the rocket engine hydrazine gel propellant described in claim 1 or 2
The method of simulated solution, it is characterised in that comprise the following steps：
1) under room temperature, normal pressure, in gel simulants matrix being slowly added to gelling agent is disperseed, and is stirred when disperseing；
2) after gelling agent is disperseed completely, continue to stir certain time, make to produce key key between gelling agent and simulated solution substrate molecule
Interaction, so as to erect network gel skeleton；
3) viscosity modifier is added, is disperseed while stirring, stirring certain time is further continued for after disperseing completely, answers gel simulants
Close system status and reach stable, gel skeleton is further firm, and viscosity reaches stable.
4. the method according to claim 3 for preparing gel simulants, it is characterised in that：
Gelling agent jitter time in simulated solution matrix is 0.5~2h, and viscosity modifier jitter time in simulated solution matrix is
0.5~2h, three kinds of material recombination process mixings time are 5h, and gelling agent carries out constant speed stirring with simulated solution matrix recombination process,
Stir speed (S.S.) is 200~600r/min, and viscosity modifier carries out constant speed stirring with simulated solution matrix recombination process, and stir speed (S.S.) is
200~800r/min.
5. prepare gel using the gel simulants formula of the rocket engine hydrazine gel propellant described in claim 1 or 2
The method of simulated solution, it is characterised in that comprise the following steps：
1) under room temperature, normal pressure, in gel simulants matrix being slowly added to viscosity modifier is disperseed, and is stirred when disperseing；
2) after viscosity modifier disperses completely, continue to stir certain time, make between viscosity modifier and simulated solution substrate molecule
The interaction of key key is produced, so as to erect network gel skeleton；
3) gelling agent is added, is disperseed while stirring, stirring certain time is further continued for after disperseing completely, makes gel simulants complex
It is that state reaches stable, gel skeleton is further firm, and viscosity reaches stable.
6. the method according to claim 5 for preparing gel simulants, it is characterised in that：
Gelling agent jitter time in simulated solution matrix is 0.5~2h, and viscosity modifier jitter time in simulated solution matrix is
0.5~2h, three kinds of material recombination process mixings time are 5h, and gelling agent carries out constant speed stirring with simulated solution matrix recombination process,
Stir speed (S.S.) is 200~600r/min, and viscosity modifier carries out constant speed stirring with simulated solution matrix recombination process, and stir speed (S.S.) is
200~800r/min.
Priority Applications (1)
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| CN111289403A (en) * | 2018-12-10 | 2020-06-16 | 北京航天试验技术研究所 | Method for analyzing content of gelling agent in colloidal propellant |
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