CN116553988A - Novel emulsion explosive containing titanium hydride and preparation method thereof - Google Patents
Novel emulsion explosive containing titanium hydride and preparation method thereof Download PDFInfo
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- CN116553988A CN116553988A CN202310554749.XA CN202310554749A CN116553988A CN 116553988 A CN116553988 A CN 116553988A CN 202310554749 A CN202310554749 A CN 202310554749A CN 116553988 A CN116553988 A CN 116553988A
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- 239000002360 explosive Substances 0.000 title claims abstract description 114
- 239000000839 emulsion Substances 0.000 title claims abstract description 92
- 229910000048 titanium hydride Inorganic materials 0.000 title claims abstract description 27
- -1 titanium hydride Chemical compound 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 11
- 239000004005 microsphere Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 206010070834 Sensitisation Diseases 0.000 claims description 8
- 230000008313 sensitization Effects 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000001804 emulsifying effect Effects 0.000 claims description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims 2
- 235000010344 sodium nitrate Nutrition 0.000 claims 1
- 239000004317 sodium nitrate Substances 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000005474 detonation Methods 0.000 abstract description 28
- 238000005979 thermal decomposition reaction Methods 0.000 abstract description 11
- 230000004913 activation Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 2
- 235000011837 pasties Nutrition 0.000 abstract 2
- 239000000523 sample Substances 0.000 description 51
- 238000004880 explosion Methods 0.000 description 16
- 238000002474 experimental method Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- 238000009472 formulation Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- LEJBBGNFPAFPKQ-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethoxy)ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOC(=O)C=C LEJBBGNFPAFPKQ-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/285—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with fuel oil, e.g. ANFO-compositions
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/002—Sensitisers or density reducing agents, foam stabilisers, crystal habit modifiers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a novel emulsion explosive containing titanium hydride and a preparation method thereof, wherein the components of the novel emulsion explosive comprise matrix explosive and titanium hydride powder, the matrix explosive is industrial pasty emulsion explosive, and the novel emulsion explosive containing titanium hydride comprises the following raw materials in percentage by weight: 96-98wt% of matrix explosive and 2-4wt% of titanium hydride powder. The formula of the industrial pasty emulsion explosive is the same as the formula of the existing emulsion explosive, and the novel emulsion explosive containing titanium hydride is the same as the preparation method of the glass microsphere added with the physical sensitizer in the prior art. The titanium hydride added in the invention has small influence on detonation velocity, but can effectively improve the detonation heat and the fierce strength of the emulsion explosive, has no obvious influence on the thermal decomposition process of the emulsion matrix, but can reduce the apparent activation energy of the explosive, so the titanium hydride type emulsion explosive has good detonation performance and thermal stability.
Description
Technical Field
The invention relates to the field of explosive preparation, in particular to an emulsion explosive containing titanium hydride and a preparation method thereof.
Background
The emulsion explosive is a W/O type water-containing explosive in the 70 s of the 20 th century, and is widely applied to industry due to the advantages of good water resistance, simple manufacturing process and good detonation performance. Because the emulsion explosive contains one tenth of water, the function is insufficient, and the addition of the high-energy metal powder is a method for effectively improving the detonation performance of the explosive. With the increase of the content of the aluminum powder, the impact wave energy and the air bubbles of the emulsion explosive are increased, but when the content of the aluminum powder in the emulsion explosive is fixed, the specific air bubbles can be positively correlated with the granularity of the aluminum powder, the specific impact wave energy is negatively correlated with the specific air bubbles, and the explosion speed and the acting capacity of the emulsion explosive are not simply positively correlated with the content and the granularity of the aluminum powder. The aluminum powder can improve the power of the explosive and also has an influence on the heat stability of the emulsion explosive. Therefore, how to increase the power of the explosive while maintaining its good stability is a problem to be solved.
The hydrogen storage material may act as both a sensitizer and an energetic additive in the explosive. Wherein MgH is 2 The detonation performance of the explosive can be effectively improved, and the composite sensitization of the glass microspheres and the glass microspheres can greatly improve the detonation velocity and the high degree of the explosive, but the thermal decomposition characteristic of the explosive is not solved. Research on titanium powder has found that titanium powder does not change its thermal decomposability while improving detonation performance.
TiH 2 Compared with other metal additives, the following 4-point advantages are achieved: first, tiH 2 The thermal stability is good. MgH (MgH) 2 Hydrolysis reaction can occur under normal temperature condition and H is generated 2 While TiH 2 The hydrolysis reaction does not occur even under the high temperature condition (25-100 ℃), so that the problem that the stability of the emulsion explosive is affected due to overlarge sensitized bubbles caused by the post-foaming effect does not occur, and the TiH 2 Thermal decomposition starts at 520-640 ℃ and hydrogen and titanium are generated, so that the thermal stability is better than MgH 2 The method comprises the steps of carrying out a first treatment on the surface of the Second, tiH 2 Can improve the power of the emulsion explosive and is suitable for special places. When the temperature reaches 550 ℃, the titanium powder is completely oxidized and TiO is generated 2 And the temperature after explosion of the explosive is much higher than 640 ℃, thus, ifHandle TiH 2 Adding emulsion explosive, using TiH 2 Good thermal stability and oxidation reaction thereof generate a large amount of heat and generate gaseous H 2 O is expected to improve the power of the emulsion explosive while ensuring the good thermal stability of the emulsion explosive, thereby being capable of ensuring the TiH 2 The emulsion explosive is suitable for special places such as high temperature, high rock hardness and the like; third, tiH 2 The economic benefit is better. TiH (TiH) 2 Compared with MgH 2 In other words, tiH 2 Lower cost and more readily available; fourth, tiH 2 The manufacturing process of the emulsion explosive is simple. TiH (TiH) 2 Does not undergo hydrolysis reaction, thus eliminating the need for TiH 2 Coating is carried out, and the emulsion explosive can be directly doped.
TiH 2 The emulsion explosive can effectively improve detonation performance of the explosive and maintain good stability, so that the emulsion explosive with high power and good stability is obtained, and the application range and the application field of the emulsion explosive are greatly widened.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a material containing TiH 2 The novel emulsion explosive and the preparation method thereof ensure the stability of the emulsion explosive while exerting high power.
The invention realizes the aim by adopting the following technical scheme:
TiH-containing material 2 Novel emulsion explosive of (2) is prepared from TiH 2 The novel emulsion explosive comprises the following raw materials in percentage by weight based on the total weight of the raw materials of the emulsion explosive: 96-98wt% of matrix explosive and TiH 2 2-4wt％。
In one embodiment of the invention, tiH is used 2 The novel emulsion explosive comprises the following raw materials in percentage by weight based on the total weight of the raw materials of the emulsion explosive: 96-98wt% matrix explosive, e.g. as TiH 2 The novel emulsion explosive comprises the following raw materials in percentage by weight based on the total weight of the raw materials of the emulsion explosive: 96wt% of matrix explosive and 98wt%.
In one embodiment of the invention, tiH is used 2 The total weight of the emulsion explosive raw materials is calculated as followsThe novel emulsion explosive comprises the following raw materials in percentage by weight: tiH (TiH) 2 2-4wt%, e.g. as TiH 2 The novel emulsion explosive comprises the following raw materials in percentage by weight based on the total weight of the raw materials of the emulsion explosive: tiH (TiH) 2 2wt％，4wt％。
A preparation process of an emulsion explosive containing titanium hydride comprises the following steps:
first, preparing an emulsion matrix;
secondly, adding titanium hydride with different mass fractions into the emulsified base material and uniformly stirring;
thirdly, adding glass microspheres for sensitization to obtain titanium hydride-containing emulsion explosive with different mass fractions.
The invention has the beneficial effects that:
TiH added by the invention 2 The impact on the detonation velocity of the emulsion explosive is small, but the detonation heat and the high degree of the emulsion explosive can be effectively improved.
TiH added by the invention 2 Has no obvious influence on the thermal decomposition process of the emulsion matrix, but can reduce the apparent activation energy of the emulsion explosive.
TiH of the invention 2 The emulsion explosive has good detonation performance and thermal stability.
TiH of the invention 2 The production process of the emulsion explosive is simple and convenient, tiH2 is added into the emulsion matrix, then the emulsion explosive is uniformly stirred, and then glass microspheres are added to prepare the emulsion explosive.
Drawings
FIG. 1 is a graph showing the real-time temperature difference between the temperature (DeltaT) of the inner and outer barrels of the explosive heat bullet after the sample explosive is detonated and the reaction time in example 1 of the present invention.
FIG. 2 is a graph of TG for the sample of example 4 of the invention.
Fig. 3 is a DTG plot of a sample in example 4 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown, in which some, but not all embodiments of the invention are shown. Based on the embodiments of the present invention, other embodiments obtained by those of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
Example 1:
preparation of emulsion explosive: weighing ammonium nitrate, urea, pure water and a composite oil phase with corresponding mass fractions to prepare a water phase and an oil phase, setting the rotating speed of the JFS-550 variable speed dispersing agent to be 1200r/min, and after the preparation of the emulsified matrix is completed, preparing the TiH 2 Adding the powder into the emulsified matrix, stirring uniformly, adding Q-CEL5020 glass microspheres for sensitization, and obtaining TiH with different mass fractions 2 Is designated as sample # 1, sample # 2, and sample # 3, respectively. And respectively carrying out a detonation heat experiment, a detonation velocity experiment, a high-strength experiment and a thermal decomposition characteristic experiment on the prepared emulsion explosive, and comparing and analyzing the influence of titanium hydride on the explosion performance and the thermal stability of the emulsion explosive.
Table 1 emulsion matrix formulation used in example 1
TABLE 2 example 1 sample formulations and oxygen balance values
Measurement of actual Heat explosion Using Large Heat explosion bullets (100 g eq., developed by the West Ann modern chemical institute) for three different groups of TiH 2 The content of emulsion explosive is subjected to a detonation heat experiment, and the detonation heat bomb comprises an inner barrel and an outer barrel with a jacket. And (3) taking 30.0g of sample emulsion explosive to detonate in the inner barrel, wherein the generated heat can heat distilled water in the gap of the inner barrel and the outer barrel, and the detonation heat value of the sample is obtained according to the temperature difference (delta T) of the inner barrel and the outer barrel.
In the detonation heat experiment, the difference (delta T) between the temperature of the inner barrel and the temperature of the outer barrel of the detonation heat bomb after detonation of the explosive and the reaction time are plotted into a real-time temperature difference change chart in FIG. 1. The heat of detonation data are shown in Table 3.
TABLE 3 sample experimental burst value tables
As can be seen from tables 2 and 3, it can be seen from table 3 that sample # 2 (TiH 2 Mass fraction of 2%) compared to sample # 1 (TiH) 2 The actual heat value was increased by about 4.21% by mass and sample # 3 (TiH) 2 The heat of detonation of 4% by mass increased by about 5.66% compared to sample 1# and by only about 1.39% compared to sample 2 #. That is to say as TiH in the sample 2 The content is increased, and the peak value of the curve shows an ascending trend, which indicates that the explosion heat of the sample is also increased; but when TiH in explosive 2 When the content of (2) is continuously increased, the detonation heat is not obviously improved. By comparing the heat explosion values measured by different sample heat explosion bombs, it can be seen that TiH is within a certain range 2 The detonation heat of the emulsion explosive can be effectively improved.
Example 2:
preparation of emulsion explosive: weighing ammonium nitrate, urea, pure water and a composite oil phase with corresponding mass fractions to prepare a water phase and an oil phase, setting the rotating speed of the JFS-550 variable speed dispersing agent to 1200r/min, and after the preparation of the emulsified matrix is completed, preparing the TiH 2 Adding the powder into the emulsified matrix, stirring uniformly, adding Q-CEL5020 glass microspheres for sensitization, and obtaining TiH with different mass fractions 2 Is designated as sample # 1, sample # 2, and sample # 3, respectively. And respectively carrying out explosion velocity experiments on the prepared emulsion explosive, and comparing and analyzing the influence of titanium hydride on the explosion performance of the emulsion explosive.
TABLE 4 emulsified base formulation used in example 2
TABLE 5 sample formulations and oxygen balance values for example 2
The three different TiHs are processed by adopting a BSW-3A intelligent 5-section explosion velocity meter in an explosion pillbox 2 The explosive speed experiment is carried out on the content emulsion explosive, the diameter of the explosive coil used in the experiment is 35+/-1 cm, and the length is 25+/-1 cm. The test adopts a probe method to measure two sections of explosion speeds, then the average value is taken as the explosion speed of the group, the target distance of the two sections adopted by the test is 40mm, each group of samples is subjected to two tests, and the average value of the two tests is taken as the explosion speed of the sample test.
TABLE 6 different TiHs 2 Density and detonation velocity of emulsion explosive with mass fraction
As can be seen from Table 4, as TiH in emulsion explosive 2 The mass fraction is increased, and the detonation velocity of the emulsion explosive is gradually reduced. By comparing the detonation velocities measured with different samples, tiH can be seen 2 The detonation velocity of the emulsion explosive is reduced.
Embodiment 3:
preparation of emulsion explosive: weighing ammonium nitrate, urea, pure water and a composite oil phase with corresponding mass fractions to prepare a water phase and an oil phase, setting the rotating speed of the JFS-550 variable speed dispersing agent to 1200r/min, and after the preparation of the emulsified matrix is completed, preparing the TiH 2 Adding the powder into the emulsified matrix, stirring uniformly, adding Q-CEL5020 glass microspheres for sensitization, and obtaining TiH with different mass fractions 2 Is designated as sample # 1, sample # 2, and sample # 3, respectively. And respectively carrying out a high-strength experiment on the prepared emulsion explosive, and comparing and analyzing the influence of titanium hydride on the explosion performance of the emulsion explosive.
TABLE 7 emulsion matrix formulation used in example 3
TABLE 8 example 3 sample formulations and oxygen balance values
The degree of violence of the sample emulsion explosive was determined by the GB12440-1990 lead column compression method, the lead column used for the experiment being 60mm in height. 50.0g of sample emulsion explosive is placed in kraft cartridge, placed on lead column via steel sheet, and then number 8 electric detonator is inserted into cartridge, the whole is fixed on steel base, and detonated in explosive pillbox.
TABLE 9 different TiHs 2 Emulsion explosive lead column compression value based on mass fraction
As can be seen from the data in table 9, the brisance of sample No. 2 was increased by about 15.29% compared to sample No. 1, and the brisance of sample No. 3 was increased by about 17.20% compared to sample No. 1. The above results indicate that TiH 2 Can effectively improve the fierce degree of the emulsion explosive.
Embodiment 4:
preparation of emulsion explosive: weighing ammonium nitrate, urea, pure water and a composite oil phase with corresponding mass fractions to prepare a water phase and an oil phase, setting the rotating speed of the JFS-550 variable speed dispersing agent to 1200r/min, and after the preparation of the emulsified matrix is completed, preparing the TiH 2 Adding the powder into the emulsified matrix, stirring uniformly, adding Q-CEL5020 glass microspheres for sensitization, and obtaining TiH with different mass fractions 2 Is designated as sample # 1, sample # 2, and sample # 3, respectively. And respectively carrying out a thermal decomposition characteristic test and a storage test on the prepared emulsion explosive, and comparing and analyzing the influence of titanium hydride on the thermal stability of the emulsion explosive.
Table 10 emulsion matrix formulation used in example 4
TABLE 11 sample formulations and oxygen balance values for example 4
The apparatus used in the thermal decomposition test was a TGA 2 thermogravimetric analyzer manufactured by METTLER TOLEDO, switzerland, the crucible used in the test was an open alumina crucible, and the test atmosphere was N 2 The flow rate was 50mL/min. Taking 2.5+/-0.2 mg of each emulsion explosive sample, placing the emulsion explosive samples into an open crucible of an alumina crucible, respectively using three heating rates of 5 ℃/min, 10 ℃/min and 15 ℃/min, and comparing the quality of the samples before and after the experiment at the heating interval of 25-400 ℃ for observing the thermal decomposition characteristics of the samples.
In the thermal decomposition experiment, a sample TG curve is shown in fig. 2, and a sample DTG curve is shown in fig. 3.
As can be seen from fig. 2 and 3, the TG and DTG curve trends of the three samples are substantially consistent. The TG curve of the sample can be divided into three phases, the first phase being 25-175 ℃, the mass loss of the sample at this phase being about 15%, and showing a relatively gentle loss-in-weight peak in the DTG curve, mainly due to evaporation of water in the emulsified matrix and decomposition of a very small fraction of the unstable emulsified matrix; the second stage is 175-325 ℃, the mass loss of the sample in the second stage is about 75%, and the mass loss in the DTG curve shows a sharp weightlessness peak, and the mass loss in the second stage is mainly due to the severe decomposition reaction of AN, SN, oil phase and other components in the sample emulsion matrix at high temperature; the third stage is 325-400 deg.C, the curve is kept stable, and the sample quality is not changed. The TG and DTG curve change trend of the emulsified base samples with different TiH2 contents are basically consistent, so that it can be seen that the TiH 2 Has little effect on the thermal decomposition properties of the emulsified base.
In the thermal decomposition experiment, the apparent activation energy of each sample was obtained by plotting according to Ozawa method and performing a linear fitting as shown in table 6:
table 12 Ozawa calculated apparent activation energy for each sample in example 4:
as can be seen from the data in Table 12, the apparent activation energy of the sample No. 1 emulsion matrix was 111.70kJ/mol, whereas when 2% TiH was added to the emulsion matrix 2 (2 #) the apparent activation energy was 21.04% less decay than sample 1#, with TiH in the emulsified matrix 2 The content is increased, and the decay rate of apparent activation energy is reduced. When emulsifying TiH in a matrix 2 When the content of (3 #) was 4%, the apparent activation energy was 12.61% as compared with sample 1 #. It follows that the addition of TiH2 to an explosive reduces its apparent activation energy.
The present invention is not described in detail in part as being well known to those skilled in the art. The above examples are merely illustrative of preferred embodiments of the invention, which are not exhaustive of all details, nor are they intended to limit the invention to the particular embodiments disclosed. Various modifications and improvements of the technical scheme of the present invention will fall within the protection scope of the present invention as defined in the claims without departing from the design spirit of the present invention.
Claims (6)
1. The novel titanium hydride-containing emulsion explosive is characterized by comprising the following raw materials in percentage by weight based on the total weight of the novel titanium hydride-containing emulsion explosive raw materials: 96.00-98.00wt% of matrix explosive and 2.00-4.00wt% of titanium hydride.
2. The explosive of claim 1, wherein the matrix explosive is made of an emulsion matrix plus a sensitizer;
preferably, the emulsifying matrix comprises ammonium nitrate, sodium nitrate, urea and a composite oil phase;
preferably, the sensitizer refers to a physical sensitizer;
preferably, the physical sensitizer is glass microsphere.
3. An explosive as claimed in claim 1 wherein the titanium hydride used is 99% pure.
4. An explosive as claimed in claim 1 wherein the titanium hydride powder is added directly.
5. The explosive of claim 1, wherein the novel explosive is subjected to complex sensitization.
6. A method of preparing a novel titanium hydride containing emulsion explosive as claimed in any one of claims 1 to 3 comprising the steps of:
(1) Preparing an emulsified base material;
(2) Adding titanium hydride with different mass fractions into an emulsifying substrate and uniformly stirring;
(3) And adding glass microspheres for sensitization to obtain the novel titanium hydride-containing emulsion explosive with different mass fractions.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432408A (en) * | 2011-09-19 | 2012-05-02 | 中国科学技术大学 | Titanium hydride hydrogen storage emulsion explosive |
| CN106883083A (en) * | 2017-04-18 | 2017-06-23 | 攀枝花学院 | Emulsion and the mixed medicine granulation all-in-one of the method and physical sensitization of granulation |
| CN107540486A (en) * | 2017-10-09 | 2018-01-05 | 安徽理工大学 | A kind of hydrogen storage type emulsion seismic charge and the hypocentrum cartridge using the explosive-source explosive post |
| US20220119323A1 (en) * | 2020-07-14 | 2022-04-21 | VK Integrated Systems, Inc. | Plasticized, Adhesive Binary Explosive |
| CN114621042A (en) * | 2022-03-10 | 2022-06-14 | 安徽理工大学 | Powdery emulsion explosive for explosive welding |
-
2023
- 2023-05-17 CN CN202310554749.XA patent/CN116553988A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432408A (en) * | 2011-09-19 | 2012-05-02 | 中国科学技术大学 | Titanium hydride hydrogen storage emulsion explosive |
| CN106883083A (en) * | 2017-04-18 | 2017-06-23 | 攀枝花学院 | Emulsion and the mixed medicine granulation all-in-one of the method and physical sensitization of granulation |
| CN107540486A (en) * | 2017-10-09 | 2018-01-05 | 安徽理工大学 | A kind of hydrogen storage type emulsion seismic charge and the hypocentrum cartridge using the explosive-source explosive post |
| US20220119323A1 (en) * | 2020-07-14 | 2022-04-21 | VK Integrated Systems, Inc. | Plasticized, Adhesive Binary Explosive |
| CN114621042A (en) * | 2022-03-10 | 2022-06-14 | 安徽理工大学 | Powdery emulsion explosive for explosive welding |
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