PBXN-109 explosive plasticizer hydrolysis inhibition method based on environmental parameter control

Abstract

The invention discloses a PBXN-109 explosive plasticizer hydrolysis inhibition method based on environmental parameter control, and belongs to the technical field of environmental control in the storage and transportation process of PBXN-109 explosives and raw materials of the PBXN-109 explosives, and the method is characterized in that the environmental humidity (below 80% RH) and the acid value (below 1.0086 mg KOH / g) are controlled in the production, transportation and storage process of the PBXN-109 explosives, so that the PBXN-109 explosives are inhibited from hydrolysis. By means of the method, excessive 2-ethylhexanol can be avoided, IPDI is protected to normally participate in HTPB crosslinking, and therefore the problem that curing is difficult is solved; the shelf life and aging life of the explosive are prolonged, and the use safety and reliability are improved.

Description

Technical Field

[0001] This invention belongs to the field of environmental control technology for PBXN-109 explosive and its raw material storage and transportation process, and particularly relates to a method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosive based on environmental parameter control. Background Technology

[0002] PBXN-109, as a high-performance polymer-bonded explosive, has significant application value in related fields. Its core component is based on the energetic material CXM-7, which is mainly composed of RDX. It is combined with a binder system consisting of aluminum powder and hydroxyl-terminated polybutadiene (HTPB), and a small amount of plasticizer diisooctyl adipate (DOA) is added to optimize its processing performance.

[0003] The curing process of PBXN-109 relies on a specific chemical reaction system: under the action of triphenyl bismuth (TPB) catalyst, the hydroxyl groups (-OH) in the binder HTPB molecule undergo a nucleophilic addition reaction with the isocyanate groups (-NCO) in isophorone diisocyanate (IPDI), forming a urethane cross-linked structure, and finally constructing a polyurethane network to achieve complete curing of the explosive. The reaction mechanism can be specifically described as follows: the hydroxyl groups in HTPB (HO-(CH2-CH=CH-CH2)-OH) attack the isocyanate carbon of IPDI (OCN-R-NCO), completing the overall curing through a cross-linking reaction.

[0004] However, the plasticizer DOA in CXM-7 is prone to hydrolysis, which becomes a key issue affecting the curing effect of PBXN-109. DOA decomposes upon contact with water, producing adipic acid (HOOC-(CH2)4-COOH) and 2-ethylhexanol (OH-C8H). 17 The specific reaction formula is: (C8H) 17 OOC)-(CH2)4-(COOC8H 17 )+2H2O→HOOC-(CH2)4-COOH+2OH-C8H 17 Among them, 2-ethylhexanol, as a small molecule monohydric alcohol, has a highly nucleophilic hydroxyl group at its terminal. It will react rapidly with the -NCO group in IPDI to form a secondary carbonate urethane (reaction equation: HO-CH2-CH(C2H5)-C4H9+OCN-R-NCO→OCN-R-NH-CO-O-CH(CH2C2H5)C4H9). This results in a large consumption of the effective -NCO group in IPDI, and the remaining part cannot complete the cross-linking reaction with HTPB, ultimately causing incomplete solidification or even complete failure of the explosive. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control. By controlling the humidity and acidity parameters in the transportation and storage environment, the hydrolysis rate of the plasticizer diisooctyl adipate (DOA, whose hydrolysis products are adipic acid and 2-ethylhexanol) in PBXN-109 is suppressed, thereby ensuring the normal curing and performance stability of the PBXN-109 explosive.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A method for inhibiting the hydrolysis of plasticizer in PBXN-109 explosive based on environmental parameter control is disclosed. During the production, transportation, and storage of PBXN-109 explosive, the hydrolysis of the plasticizer diisooctyl adipate is inhibited by controlling the humidity and acid value of the environment. Specifically, the humidity is controlled below 80%RH ("below" means "≤", i.e., humidity ≤ 80%RH, the same below), preferably below 40%RH; and the acid value is controlled below 1.0086 mg KOH / g.

[0007] Humidity is a major factor affecting DOA hydrolysis. This invention controls the humidity of the storage and transportation environment to below the critical value of 80% RH, preferably below 40% RH. Experiments show that under conditions of 40-100% RH, the DOA decomposition rate increases sharply with increasing humidity. Under high humidity, the condensation film in the air thickens, significantly accelerating the hydrolysis rate, while a low humidity environment can greatly inhibit DOA hydrolysis. Avoid the presence of highly acidic media in the environment or raw materials, so that the DOA acid value tends to be neutral (preferably maintained below ≤1.0086 mg KOH / g). Increased acidity will protonate ester bonds, accelerating DOA hydrolysis. Therefore, by buffering the pharmaceutical product and surrounding media or selecting materials free of acidic impurities, the possibility of DOA being hydrolyzed by acid catalysis can be reduced.

[0008] Furthermore, the methods for controlling humidity and acid value include: packaging and sealing measures and monitoring and early warning.

[0009] Furthermore, the specific operational steps of the packaging and sealing measures are as follows: use packaging bags made of high-density polyethylene (HDPE) material and tie the packaging opening tightly to seal it; and place silica gel desiccant in the storage environment to absorb moisture and acidic impurities.

[0010] This invention uses high-density polyethylene (HDPE) packaging bags instead of low-density bags and seals the packaging opening tightly. For long-term storage or transportation, a desiccant is placed outside the packaging bag to absorb moisture from the air and external acidic impurities. By using HDPE packaging with good water-resistant properties and sealing it tightly, moisture can be effectively prevented from entering the packaging. The desiccant (such as silica gel) can continuously absorb residual moisture, further reducing environmental humidity and acidic impurities.

[0011] Furthermore, the specific operational steps for the monitoring and early warning are as follows: Temperature and humidity recorders are installed in storage or transportation areas to monitor ambient humidity, and the acid value, volatile 2-ethylhexanol concentration, or odor of the explosive products are periodically tested. Intervention measures are taken when the monitored values ​​exceed preset thresholds. These intervention measures specifically include replacing packaging, replenishing desiccant, ventilating to reduce humidity, or neutralizing acidity.

[0012] Furthermore, the method for controlling the acid value also includes one of the following: Method 1: Add neutral raw materials to the system for buffering, such as polymeric epoxy plasticizers, carbodiimide acid scavengers, layered double hydroxides / hydrotalcites, and weakly basic oxides; buffering the drug and the surrounding medium can reduce the possibility of DOA being hydrolyzed by acid catalysis. Method 2: Select low-acid-value RDX as the main raw material of PBXN-109 explosive base (CXM-7); the low acid value refers to acid value ≤0.0042mg KOH / g. Specifically, use recrystallization to prepare low-acid-value RDX (tending to 0, neutral) as the main raw material of CXM-7, and avoid using high-acid-value RDX to avoid increasing the acid value of the CXM-7 system.

[0013] Furthermore, the production, transportation, and storage of PBXN-109 explosives also include accelerated aging warning, specifically by controlling the ambient temperature below 29°C.

[0014] Based on accelerated aging test results and the Arrhenius model, this invention estimates the accelerated aging life of CXM-7 at different temperatures as follows: approximately 4.5 years at 30℃, approximately 1.6 years at 40℃, and approximately 0.6 years at 50℃. Storage at temperatures above 38℃ results in an accelerated life of less than 2 years; however, controlling the temperature below 29℃ can potentially achieve a stable period exceeding 5 years. Therefore, storage temperatures should be controlled as low as possible below 29℃ to significantly extend the explosive's storage life and reduce the risk of DOA decomposition. In high-temperature environments, the storage period needs to be shortened to ensure that the explosive is used within its expected lifespan at that temperature.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects: This invention significantly reduces the hydrolysis rate of the plasticizer component DOA in explosives during transportation and storage by controlling the humidity and acid value of the environment, avoiding the generation of excessive 2-ethylhexanol, protecting IPDI to participate normally in HTPB crosslinking, thereby solving the problem of difficult curing; extending the shelf life and aging life of explosives, and improving the safety and reliability of use.

[0016] The method provided by this invention is simple to operate, can be implemented in existing production and transportation systems, and has good industrial applicability and promotional value. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 The image shows the cured state of CXM-7 prepared using DOA with a low decomposition rate as raw material in Example 1, which was subjected to simulated curing of PBXN-109. Figure 2 The image shows the uncured state of CXM-7 prepared using DOA with a low decomposition rate as raw material in Example 1, which was subjected to simulated curing of PBXN-109. Figure 3 The graph shows the relationship between storage temperature and accelerated aging life calculated based on the CXM-7 aging test results in Example 1. Detailed Implementation

[0018] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0019] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0020] Unless otherwise stated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. While only preferred methods and materials have been described herein, any methods and materials similar or equivalent to those described herein may be used in the implementation or testing of this invention. All references to this specification are incorporated by way of citation to disclose and describe methods and / or materials associated with those references. In the event of any conflict with any incorporated reference, the content of this specification shall prevail.

[0021] Various modifications and variations can be made to the specific embodiments described in this specification without departing from the scope or spirit of the invention, as will be apparent to those skilled in the art. Other embodiments derived from this specification will also be apparent to those skilled in the art. This specification and embodiments are merely exemplary.

[0022] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0023] This invention provides a method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control. The method primarily involves controlling the humidity and acid value of the environment during the production, transportation, and storage of PBXN-109 explosives to inhibit the hydrolysis of the plasticizer diisooctyl adipate. Specifically, the humidity is controlled below 80% RH, preferably below 40% RH; and the acid value is controlled below 1.0086 mg KOH / g. The following measures are specifically taken to control the humidity and acid value: Measure 1: Humidity Control. Maintain the humidity of the storage and transportation environment below the critical value of 80% RH, preferably below 40% RH. Humidity is a major factor affecting DOA hydrolysis. Experiments show that under conditions of 40-100% RH, the DOA decomposition rate increases sharply with increasing humidity. At high humidity, the condensation film in the air thickens, significantly accelerating the hydrolysis rate, while a low humidity environment can greatly inhibit DOA hydrolysis.

[0024] Measure 2: Acid Value Control: Avoid the presence of highly acidic media in the environment or raw materials, so that the DOA acid value tends to be neutral (preferably maintained below ≤1.0086 mg KOH / g). Increased acidity will protonate ester bonds, accelerating DOA hydrolysis. Therefore, by buffering the drug and surrounding media or selecting materials free of acidic impurities, the possibility of DOA being hydrolyzed by acid catalysis can be reduced.

[0025] Measure 3: Control of acid value of raw materials and products: Use low acid value RDX (tending to 0, neutral) prepared by recrystallization as the main raw material of CXM-7, and avoid using high acid value RDX to avoid increasing the acid value of the CXM-7 system.

[0026] Measure 4: Packaging and Sealing Measures: Replace low-density bags with high-density polyethylene (HDPE) bags and seal the packaging openings tightly. For long-term storage or transportation, place a desiccant outside the packaging bag to absorb moisture from the air and external acidic impurities. Using HDPE packaging with good water-resistant properties and ensuring tight sealing effectively prevents moisture from entering the packaging. The desiccant (such as silica gel) will continuously absorb residual moisture, further reducing environmental humidity and acidity.

[0027] Measure 5: Monitoring and Early Warning: Install temperature and humidity recorders at the packaging, transportation, or storage locations to monitor ambient humidity, and regularly sample and test the acid value of the explosive products (or detect the volatile concentration of 2-ethylhexanol by odor detection). The release of a strong odor of 2-ethylhexanol from the sample can be considered an early warning signal that the DOA has undergone hydrolysis. Once excessive humidity or acid value, or an increased concentration of 2-ethylhexanol odor is detected, immediate measures should be taken, such as replacing the packaging, replenishing desiccant, ventilating to reduce humidity, or neutralizing the acid value, to terminate the hydrolysis reaction.

[0028] Measure Six: Accelerated Aging Early Warning In summary, the present invention establishes a humidity-acidity dual-factor environmental control system. Experimental and theoretical analyses show that when environmental parameters meet the criteria of 80% RH humidity and 1.0086 mg KOH / g acid value, DOA hydrolysis will be accelerated, causing a rapid increase in the DOA decomposition rate and the generation of sufficient 2-ethylhexanol, thereby destroying the PBXN-109 curing system. Therefore, the present invention, by controlling the transportation and storage environment below this critical condition, can inhibit DOA hydrolysis and ensure the normal curing of PBXN-109. If the environment is uncontrolled or exceeds the threshold, and the DOA decomposition rate exceeds 31.3% (corresponding to the generation of approximately 1.10 wt% 2-ethylhexanol), it will completely consume the -NCO in IPDI, leading to curing failure. The present invention, through comprehensive environmental parameter control and monitoring, effectively avoids this destructive competitive reaction, ensuring reliable curing and long-term stability of the explosive.

[0029] Unless otherwise specified, "room temperature" in this invention refers to 25±2℃.

[0030] All raw materials used in this invention were purchased from the market.

[0031] The technical solution of the present invention will be further illustrated by the following embodiments.

[0032] Example 1 To clarify the influence of environmental parameters humidity and acid value on DOA hydrolysis, this embodiment uses pure DOA as the test object to conduct a critical condition test for DOA decomposition based on a humidity-acid dual-factor triggering mechanism. The critical conditions are also verified by simulating the curing process of PBXN-109 (without Al powder, as Al powder does not affect the curing results). The specific operating steps are as follows: 1) Humidity and acid value control: Using pure DOA as the research object, 1.0 mL of DOA (0.92 g) was dispensed into each chromatographic bottle, totaling 36 bottles in 3 groups, numbered 1 / 3 / 5-1 to 12. The humidity chamber conditions were set at 40-100% RH, and the acid value conditions were set at 0.5-1.6 mg KOH / g, with a step size of approximately 0.5 mg KOH / g. The acid value was adjusted using 14.8 mol / L nitric acid. According to Table 1, the decomposition experiments were carried out on each group of 36 chromatographic bottles under the established experimental conditions. After the experiment, the chromatographic bottles were removed, and the pure DOA was titrated with acid. The titration procedure is as follows: Using dimethyl sulfoxide (DMSO) as the solvent, first tare a 40 mL beaker, then place all samples from the chromatographic vial into the beaker. Accurately measure 10.0 mL of DMSO into the beaker, and stir thoroughly to ensure that DOA, isooctyl alcohol, adipic acid, dilute nitric acid, water, and other decomposition products are fully dissolved in the DMSO to form the titration system. The mass of the solution is recorded as follows: m sampleDilute 1% standard phenolphthalein solution (ethanol) to volume as a titration indicator, and take 0.1 mol / L (0.1 N, denoted as ) c KOH Using potassium hydroxide solution (ethanol) as the titrant, add 2 drops of phenolphthalein solution to the titration system and gently shake to mix thoroughly. Use a 10.0 mL PTFE burette for titration, gently shaking the beaker during the process. The titration is complete when the color of the titration system changes from colorless to a slightly pinkish hue. Record the volume of potassium hydroxide solution consumed. V KOH .

[0033] To prevent the solvent from affecting the acid value of the titration system solution, a blank titration of the solvent DMSO was performed before titration. Specifically, 10.0 mL of DMSO was titrated under the same titration conditions, and the volume of potassium hydroxide solution consumed was recorded as follows: V blank After titration, the acid value of the titration system is calculated according to formula (1). AV total .

[0034] (1) Since dilute nitric acid was used to adjust the acid value in this embodiment, the dilute nitric acid will affect the final solution acid value. Therefore, it needs to be removed by calculation, that is, the true acid value provided by adipic acid, the decomposition product of DOA, is obtained by formula (2) and formula (3).

[0035] (2) (3) In equations (1)-(3): Take 14.8 mol / L; Take 56.10 g / mol.

[0036] Record the DOA mass of the feed in the experiment as follows: In an ideal reaction, if 1 mol of DOA decomposes to produce 1 mol of adipic acid, then the decomposition rate of DOA is... α The calculation formula is: (4) While conducting the wet-acid two-factor experiment, a time scale was introduced to observe the degree of DOA decomposition over time. Therefore, 36 chromatographic bottles in the humidity chamber were taken out in batches at 1 day, 3 days, and 5 days for measurement to further verify the critical conditions corresponding to the DOA decomposition phenomenon. The experimental conditions and results are shown in Table 1.

[0037] Table 1. Results of acid value titration experiments on DOA decomposition rate at different number of days. According to stoichiometric calculations of the cured system, when the isooctyl alcohol content generated by DOA decomposition reaches 1.10 wt% (corresponding to a DOA decomposition rate of 31.3%), it just consumes all the -NCO in IPDI. That is, once the DOA decomposition rate exceeds 31.3%, the PBXN-109 cured system will be completely destroyed. Therefore, it is necessary to avoid the cumulative decomposition of DOA above this threshold during transportation and storage. In the aforementioned two-factor experiment, on day 5, the DOA decomposition rate under the critical conditions of humidity ≥80%RH and acid value ≥1.0086 mg KOH / g was higher than this threshold, and the influence of humidity was much greater than that of acid value. Based on the curing test results, it was verified that PBXN-109 products using DOA stored under these conditions as raw material could not be cured. The curing states of successfully cured (CXM-7 prepared using DOA from batches 1 / 3 / 5-5 to 12) and uncurable (CXM-7 prepared using DOA from batches 1 / 3 / 5-1 to 4) PBXN-109 (without Al powder, Al powder does not affect the curing results) are as follows: Figure 1 and Figure 2 As shown.

[0038] Meanwhile, the results of the wet-acid dual-factor experiment show that when the humidity is below 40%RH, the decomposition rate of DOA on day 5 is less than 1.88%, which is about an order of magnitude different from the maximum decomposition rate of 10.20% at 60%RH. Therefore, 40%RH can be considered as the preferred humidity for stable storage and transportation of DOA.

[0039] In summary, 80% RH and 1.0086 mg KOH / g are the threshold conditions for triggering DOA hydrolysis and damage to the curing system, while 40% RH and 1.0086 mg KOH / g are the preferred conditions for triggering the threshold conditions for triggering DOA hydrolysis and damage to the curing system.

[0040] 2) Control of acid value of raw materials and products: When PBXN-109 (without Al powder, Al powder does not affect the curing result) is used as the main raw material of CXM-7, the low acid value RDX (average acid value of 0.0042mgKOH / g) prepared by recrystallization method has a higher Shore hardness of 4-9HA than the high acid value RDX (average acid value of 0.0190mgKOH / g) prepared by nitration method.

[0041] 3) Packaging and sealing measures: High-density polyethylene (HDPE, e.g., density 0.96 g / cm³) is used. 3 Packaging bags made of this material can replace low-density polyethylene (LDPE, density less than 0.96 g / cm³) bags. 3By sealing the packaging tightly, moisture can be introduced into the system from the air or by unexpected circumstances, preventing an increase in humidity. For long-term storage or transportation, place a desiccant outside the packaging bag to absorb moisture from the air and external acidic impurities. Using HDPE packaging with good water-resistant properties and sealing it tightly can effectively prevent moisture from entering the packaging. Desiccants (such as silica gel) can continuously absorb residual moisture, further reducing ambient humidity.

[0042] 4) Accelerated aging warning: Taking CXM-7 / LDPE and CXM-7 / HDPE packaging bag systems as research objects, accelerated aging tests were conducted in accordance with GJB 736.8-90 "Test Methods for Pyrotechnic Products 71℃ Test Method". The DOA decomposition rate in CXM-7 was used as a sensitive parameter to obtain the expected aging life of pure CXM-7 / LDPE and CXM-7 / HDPE packaging bag systems under transportation and storage conditions.

[0043] If the sensitivity parameter of the sample does not change significantly (verified by the significance test-t test), the storage time at room temperature (or other temperatures below the high temperature) is calculated from the test time at high temperature (71℃) using the modified Arrhenius equation (5).

[0044] (5) In the formula: This refers to the storage time at room temperature, expressed in days (d). The test durations for high temperatures were 28 days, 56 days, and 84 days, respectively. It is the acceleration coefficient, calculated according to formula (6).

[0045] (6) In the formula: r It is the temperature coefficient of reaction rate, which is specified in the standard as 2.7; It is the high-temperature test temperature, K; It is the ambient temperature test temperature, K; A This is the temperature change corresponding to the reaction temperature coefficient, taken as 10K.

[0046] Table 2 Results of Accelerated Aging Test As can be seen from the aging test results in Table 2, the DOA decomposition rate of CXM-7 packaged in HDPE bags is lower than that of CXM-7 packaged in LDPE bags.

[0047] Using Equation 5, the relationship between storage temperature and accelerated aging life is calculated based on the CXM-7 aging test results. Figure 3 As shown.

[0048] Calculations show that the accelerated lifespan under normal temperature conditions is approximately 4.5 years at 30℃, 1.6 years at 40℃, and 0.6 years at 50℃. This means that the accelerated lifespan is less than 2 years when stored above 38℃; however, if the temperature is controlled below 29℃, a stable period of over 5 years is expected. Therefore, this invention stipulates that the storage environment temperature for PBXN-109 explosive must not exceed the expected value during production, transportation, and storage.

[0049] 5) Monitoring and Early Warning: Install temperature and humidity recorders at the packaging, transportation, or storage locations to monitor ambient humidity, and periodically sample and test the acid value of PBXN-109 explosive products (or detect the volatile concentration of 2-ethylhexanol by odor detection). A strong odor of 2-ethylhexanol released from the sample can be considered an early warning signal that the DOA has undergone hydrolysis. If humidity or acid value exceeds the standard, or the concentration of 2-ethylhexanol odor increases, immediate measures should be taken, such as replacing the packaging, replenishing desiccant, ventilating to reduce humidity, or neutralizing the acid value, to terminate the hydrolysis reaction.

[0050] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control, characterized in that, During the production, transportation, and storage of PBXN-109 explosives, the hydrolysis of the plasticizer diisooctyl adipate is inhibited by controlling the humidity and acid value of the environment. Wherein, the humidity is ≤80%RH; and the acid value is ≤1.0086mg KOH / g.

2. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 1, characterized in that, The humidity is ≤40%RH.

3. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 1, characterized in that, The methods for controlling humidity and acid value include: packaging and sealing measures and monitoring and early warning.

4. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 3, characterized in that, The specific operational steps of the packaging and sealing measures are as follows: use packaging bags made of high-density polyethylene material and tie the packaging opening tightly to seal; and place silica gel desiccant in the storage environment to absorb moisture and acidic impurities; The density of the high-density polyethylene packaging bag is 0.96 g / cm³. 3 .

5. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 3, characterized in that, The specific operation steps of the monitoring and early warning are as follows: real-time monitoring of ambient humidity and system acid value, detection of volatile concentration or odor of 2-ethylhexanol, and intervention measures when the monitored value exceeds the preset threshold.

6. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 5, characterized in that, The specific intervention measures include replacing packaging, replenishing desiccant, ventilating to reduce humidity, or neutralizing acidity.

7. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 1, characterized in that, The method for controlling acid value also includes one of the following: Method 1: Add neutral raw materials to the system; Method 2: Select RDX (Rhodium) with low acid value as the main raw material for the base material of PBXN-109 explosive; the low acid value refers to an acid value ≤ 0.0042 mg KOH / g.

8. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 1, characterized in that, The production, transportation, and storage of the PBXN-109 explosive also include an accelerated aging warning system.

9. The method for inhibiting the hydrolysis of plasticizers in PBXN-109 explosives based on environmental parameter control according to claim 8, characterized in that, The specific operating steps for the accelerated aging warning are as follows: control the ambient temperature to ≤29℃.

Images