The Iraq war was cleared of smoke and dust settled, leaving the world with infinite and heavy thinking. As "military workers", especially "army packers," we think more about the packaging of military products in high-tech warfare. In recent years, China's military packaging has made considerable progress. This is an indisputable fact. However, compared with developed countries, there is indeed a big gap. “We must lag behind,†and we must base ourselves on winning the “digital war†in the future. Researchers in military packaging should be clear-headed, study hard, strengthen exchanges, master the use of advanced technologies, and develop advanced packaging technologies to win the war. Military packaging plays an active and effective role in military struggle. This paper discusses newly developed main packaging technologies such as anti-static, anti-electromagnetic radiation, moisture-proof, mold-proof, flame-retardant, compatibility, mechanical strength, and military counterparts.
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First, prevent static electricity
High-tech weapon system high integration of electronic devices, light collection, electromagnetic control, precision instruments in one of the targeting, guidance, surveillance, early warning, command, control systems, and gunpowder, explosives, primers, propellants, pyrotechnics, During production, storage, transportation, and use of military products such as ammunition, explosive devices, and electronic fuses, static electricity accumulates and discharges due to friction, impact, contact, separation, etc., resulting in the failure or misoperation of weapon command systems, and the burning of explosives. The explosion has caused incalculable damage. According to GJB260596 "heat sealable flexible anti-static resistance material specifications" and other technical requirements stipulated by the relevant national military standards, the development of the heat sealable flexible anti-static resistance material, with anti-static, anti-electromagnetic radiation and other technical performance. The technology uses a conductive material such as conductive carbon black, conductive fiber, metal powder, etc. to fill the polymer material in a certain proportion to obtain a heat-sealable flexible packaging material with anti-static and anti-electromagnetic radiation properties. Conductive coatings such as metal, metal oxides, conductive carbon, and composite fillers can also be used as conductive coatings and applied to the surface of polymer materials to form a cured static dissipative layer. It is also possible to form a metal plating layer having a conductive function on the surface of the polymer material by electroplating, electroless plating, physical vapor deposition (PVD), chemical vapor deposition (CVD), thermal spraying (coating), and the like. The heat-sealable and anti-static resistance spacer material produced by the above technique has the surface resistivity, static attenuation, and electrostatic shielding all satisfying the technical requirements specified by the national military standard. 
Second, anti-electromagnetic radiation
The modern informationized warfare of land, sea, air, space, and electromagnetic multidimensional bodies and high-tech weapons and equipment pose new and higher requirements for the packaging of military products. With the adoption of electronic countermeasures, the electromagnetic environment of the battlefield is deteriorating. The electronic warfare has already broken through the scope of interference, such as communications and radar, for the purpose of self-defense, and has developed into confrontation between many systems such as command, accusation, optoelectronics, and computers. When the electromagnetic wave penetrates the sensitive device of the weapon system, the damage is very much like an electrostatic discharge, which causes the control system to fail or malfunction. Explosives, ammunition, explosive devices, electronic fuzes, etc. are susceptible to combustion explosions under the influence of electromagnetic energy. According to the technical requirements stipulated in the GJB260596 "Guidelines for Heat-sealable Flexible Static-resistive Separator Materials", the heat-sealable, flexible, static-resistive barrier material developed has the technical properties of anti-static and anti-electromagnetic radiation. The technology used is the same as anti-static technology. 
Third, moisture resistance
Military products such as gunpowder, explosives, primers, propellants, pyrotechnics, ammunition, etc., are prone to hygroscopic deterioration; electronic instruments and core plates, precision firearms, instrumentation, etc. are susceptible to moisture rust or mold erosion. Our country has a vast territory, border defense lines, and maritime defense lines are very long. We have a cold northern region, a vast sea area near the equator, a southwest region with a bad storage environment, and a southeast coast with high temperature, high humidity, and high salt fog. The moisture-proof performance of military packaging put forward higher requirements. Moisture-proof packaging should comply with the provisions of the national standard GB/T54081999 "moisture-proof packaging"; moisture-proof packaging should be based on product characteristics and climate conditions of storage and transportation environment for alternating heat test. The test was conducted in accordance with the environmental test method for military equipment. After the test, it can ensure that the product performance meets the requirements of the product standard to meet the tactical and technical indicators of the long-term storage weaponry. The production technology of moisture-proof packaging materials is specifically designed according to the inherent properties of the polymer film and the moisture-proof mechanism. The polymer base material with good mechanical strength and good moisture resistance, such as a biaxially oriented polyester (BOPET) film, is used to form a dense metal aluminum layer after vacuum aluminum plating. Aluminum atoms block the voids in the molecular chain or between the molecular chains, greatly enhancing the water vapor barrier properties of the film.
The PVDC (polyvinylidene chloride) emulsion, which is extremely excellent in moisture resistance, is then plasticized, dried and cured to form a composite material with excellent barrier properties. 
Fourth, anti-mildew
Chemical products, optical lenses, communication devices, instrumentation and other military products are prone to fungal attack under conditions of suitable temperature, humidity, nutrients, light, and oxygen during transportation, use, and storage. The national standard GB/T4768-95 "Moldproof packaging" stipulates that the anti-mildew packaging grade should be based on the product's anti-mold invasive ability, the environmental conditions involved in transportation, storage, the structure of the package, the anti-mildew properties of the selected packaging materials, and the results of the mold test. And other factors to determine. The mold test is based on the national standard GB/T4857-21-95 "Measuring Test Method for Packages for Transport and Packaging"; or based on the test method for fusible environments and performances, conducted in accordance with the specified temperature, humidity, strain, and test cycle. Anti-mold agent is an additive that can inhibit the growth of mold and kill mold. The mechanism of action is mainly to reduce or eliminate the activity of various enzymes in the fungal cells, destroy the energy release system in the cells, and hinder the growth of the electron transfer system and aminotransferase. Polymer materials such as polyethylene (PE), polypropylene (PP), etc. must obtain anti-mildew properties. Anti-mold agents such as phenolic compounds, organometallic compounds, nitrogen compounds, halogenated compounds, and sulfur compounds are required The proportion is evenly mixed, plasticized, compounded and granulated to obtain anti-mold resin; anti-mildew resin is used to make anti-mildew polymer material, and a three-layer co-extrusion blow molding process is often used. 
Fifth, flame retardant
Military products, especially gunpowder, explosives, primers, propellants, pyrotechnics, and ammunition, must be fire-retardant. The technology uses the introduction of impurity atoms in polymers such as polyethylene (PE), polypropylene (PP), etc., and the oxygen index increases to achieve the flame retardant function. The commonly used flame-retardant smoke-removing substances include AL (OH)  3, Mg (OH) 2, MoO  3, CaCo3, and the like. Determination of oxygen index according to GB/T24061993 "Plastic combustion performance test method oxygen index method". Silicon-containing flame retardants or graphite can also be added to the polymer. The silicon-containing flame retardant is a condensed phase flame-retardant mechanism, and flame retarding is achieved by generating a cracked carbon layer and improving the oxidation resistance of the carbon layer. The flame-retardant mechanism of graphite is: graphite has an adsorption function, forms a network structure after blending with the polymer, and plays a certain role of skeleton support in the combustion process, so that the material does not drip when it is burned, slowing the burning tendency; The gas dilutes the oxygen concentration, reduces the flame intensity, and enhances the gas phase flame retardant effect. 
Sixth, compatibility and contact corrosion
Military products have good compatibility with gunpowder, explosives, primers, propellants, pyrotechnics, and ammunition because of tactical technical performance, long-term storage, and other special requirements; and metals such as low-carbon steels, aluminum alloys, etc. Copper foil, stainless steel, iron-nickel-cobalt alloy and other non-contact corrosion. The compatibility of the packaging material with the explosive is tested according to the thermal explosive compatibility test and differential scanning calorimetry. Corrosion-resistance to mild steel, aluminum alloy, copper foil, stainless steel, iron-nickel-cobalt alloy, etc. The requirements of GJB260596 "Standard for Heat-sealable Flexible Static Resistant Separator Materials" are performed. Therefore, in the design of the military packaging inner material, a material that has good compatibility with the packaged product is selected. 
Seven, mechanical strength
The military product packaging materials must have sufficient mechanical strength to ensure that the military products will not be damaged by crushing, friction, impact, vibration, or falling during stacking, loading, unloading, transportation, and storage. Therefore, during the design process of military packaging, according to relevant military standards, a combination of optimized materials with good mechanical strength was selected to enhance the mechanical properties of packaging materials such as breaking force, right-angled tearing force, friction resistance, puncture resistance, and cushioning performance to ensure military products. The tactical technical performance is conducive to long-term storage. After the military product's packaging is tested according to the military transport package test method, the internal military products meet the requirements of the corresponding product standards. 
The development of military product packaging technology must also be based on the characteristics of the material's aging resistance and environmental weatherability to ensure that military products’ tactical and technical performance in various harsh natural environments such as high temperature, low temperature, high humidity and high salt spray. . According to the characteristics of large intensity in wartime and bad environment, it is necessary to focus on the issue of military packaging protection under field conditions, and to give full play to packaging is not only a "bearing body" that adverse environmental factors affect the quality of equipment, but also the realization of logistics support and equipment support capabilities. The functions of "body" and "transmission of information" "connectors" and other functions give the PLA its existing equipment and equipment to meet the needs of modern local high-tech warfare. It also meets the requirements for the protection of mechanized loading and unloading and containerized transport, and realizes the storage equipment and equipment guarantees. "Maintenance," "enclosed guarantees" for carrying equipment and equipment, "integration of equipment and equipment supply" guarantees, and "controllability" for the entire process ensure that military packaging plays an active and effective role in military struggle.

First, prevent static electricity
High-tech weapon system high integration of electronic devices, light collection, electromagnetic control, precision instruments in one of the targeting, guidance, surveillance, early warning, command, control systems, and gunpowder, explosives, primers, propellants, pyrotechnics, During production, storage, transportation, and use of military products such as ammunition, explosive devices, and electronic fuses, static electricity accumulates and discharges due to friction, impact, contact, separation, etc., resulting in the failure or misoperation of weapon command systems, and the burning of explosives. The explosion has caused incalculable damage. According to GJB260596 "heat sealable flexible anti-static resistance material specifications" and other technical requirements stipulated by the relevant national military standards, the development of the heat sealable flexible anti-static resistance material, with anti-static, anti-electromagnetic radiation and other technical performance. The technology uses a conductive material such as conductive carbon black, conductive fiber, metal powder, etc. to fill the polymer material in a certain proportion to obtain a heat-sealable flexible packaging material with anti-static and anti-electromagnetic radiation properties. Conductive coatings such as metal, metal oxides, conductive carbon, and composite fillers can also be used as conductive coatings and applied to the surface of polymer materials to form a cured static dissipative layer. It is also possible to form a metal plating layer having a conductive function on the surface of the polymer material by electroplating, electroless plating, physical vapor deposition (PVD), chemical vapor deposition (CVD), thermal spraying (coating), and the like. The heat-sealable and anti-static resistance spacer material produced by the above technique has the surface resistivity, static attenuation, and electrostatic shielding all satisfying the technical requirements specified by the national military standard. 
Second, anti-electromagnetic radiation
The modern informationized warfare of land, sea, air, space, and electromagnetic multidimensional bodies and high-tech weapons and equipment pose new and higher requirements for the packaging of military products. With the adoption of electronic countermeasures, the electromagnetic environment of the battlefield is deteriorating. The electronic warfare has already broken through the scope of interference, such as communications and radar, for the purpose of self-defense, and has developed into confrontation between many systems such as command, accusation, optoelectronics, and computers. When the electromagnetic wave penetrates the sensitive device of the weapon system, the damage is very much like an electrostatic discharge, which causes the control system to fail or malfunction. Explosives, ammunition, explosive devices, electronic fuzes, etc. are susceptible to combustion explosions under the influence of electromagnetic energy. According to the technical requirements stipulated in the GJB260596 "Guidelines for Heat-sealable Flexible Static-resistive Separator Materials", the heat-sealable, flexible, static-resistive barrier material developed has the technical properties of anti-static and anti-electromagnetic radiation. The technology used is the same as anti-static technology. 
Third, moisture resistance
Military products such as gunpowder, explosives, primers, propellants, pyrotechnics, ammunition, etc., are prone to hygroscopic deterioration; electronic instruments and core plates, precision firearms, instrumentation, etc. are susceptible to moisture rust or mold erosion. Our country has a vast territory, border defense lines, and maritime defense lines are very long. We have a cold northern region, a vast sea area near the equator, a southwest region with a bad storage environment, and a southeast coast with high temperature, high humidity, and high salt fog. The moisture-proof performance of military packaging put forward higher requirements. Moisture-proof packaging should comply with the provisions of the national standard GB/T54081999 "moisture-proof packaging"; moisture-proof packaging should be based on product characteristics and climate conditions of storage and transportation environment for alternating heat test. The test was conducted in accordance with the environmental test method for military equipment. After the test, it can ensure that the product performance meets the requirements of the product standard to meet the tactical and technical indicators of the long-term storage weaponry. The production technology of moisture-proof packaging materials is specifically designed according to the inherent properties of the polymer film and the moisture-proof mechanism. The polymer base material with good mechanical strength and good moisture resistance, such as a biaxially oriented polyester (BOPET) film, is used to form a dense metal aluminum layer after vacuum aluminum plating. Aluminum atoms block the voids in the molecular chain or between the molecular chains, greatly enhancing the water vapor barrier properties of the film.
The PVDC (polyvinylidene chloride) emulsion, which is extremely excellent in moisture resistance, is then plasticized, dried and cured to form a composite material with excellent barrier properties. 
Fourth, anti-mildew
Chemical products, optical lenses, communication devices, instrumentation and other military products are prone to fungal attack under conditions of suitable temperature, humidity, nutrients, light, and oxygen during transportation, use, and storage. The national standard GB/T4768-95 "Moldproof packaging" stipulates that the anti-mildew packaging grade should be based on the product's anti-mold invasive ability, the environmental conditions involved in transportation, storage, the structure of the package, the anti-mildew properties of the selected packaging materials, and the results of the mold test. And other factors to determine. The mold test is based on the national standard GB/T4857-21-95 "Measuring Test Method for Packages for Transport and Packaging"; or based on the test method for fusible environments and performances, conducted in accordance with the specified temperature, humidity, strain, and test cycle. Anti-mold agent is an additive that can inhibit the growth of mold and kill mold. The mechanism of action is mainly to reduce or eliminate the activity of various enzymes in the fungal cells, destroy the energy release system in the cells, and hinder the growth of the electron transfer system and aminotransferase. Polymer materials such as polyethylene (PE), polypropylene (PP), etc. must obtain anti-mildew properties. Anti-mold agents such as phenolic compounds, organometallic compounds, nitrogen compounds, halogenated compounds, and sulfur compounds are required The proportion is evenly mixed, plasticized, compounded and granulated to obtain anti-mold resin; anti-mildew resin is used to make anti-mildew polymer material, and a three-layer co-extrusion blow molding process is often used. 
Fifth, flame retardant
Military products, especially gunpowder, explosives, primers, propellants, pyrotechnics, and ammunition, must be fire-retardant. The technology uses the introduction of impurity atoms in polymers such as polyethylene (PE), polypropylene (PP), etc., and the oxygen index increases to achieve the flame retardant function. The commonly used flame-retardant smoke-removing substances include AL (OH)  3, Mg (OH) 2, MoO  3, CaCo3, and the like. Determination of oxygen index according to GB/T24061993 "Plastic combustion performance test method oxygen index method". Silicon-containing flame retardants or graphite can also be added to the polymer. The silicon-containing flame retardant is a condensed phase flame-retardant mechanism, and flame retarding is achieved by generating a cracked carbon layer and improving the oxidation resistance of the carbon layer. The flame-retardant mechanism of graphite is: graphite has an adsorption function, forms a network structure after blending with the polymer, and plays a certain role of skeleton support in the combustion process, so that the material does not drip when it is burned, slowing the burning tendency; The gas dilutes the oxygen concentration, reduces the flame intensity, and enhances the gas phase flame retardant effect. 
Sixth, compatibility and contact corrosion
Military products have good compatibility with gunpowder, explosives, primers, propellants, pyrotechnics, and ammunition because of tactical technical performance, long-term storage, and other special requirements; and metals such as low-carbon steels, aluminum alloys, etc. Copper foil, stainless steel, iron-nickel-cobalt alloy and other non-contact corrosion. The compatibility of the packaging material with the explosive is tested according to the thermal explosive compatibility test and differential scanning calorimetry. Corrosion-resistance to mild steel, aluminum alloy, copper foil, stainless steel, iron-nickel-cobalt alloy, etc. The requirements of GJB260596 "Standard for Heat-sealable Flexible Static Resistant Separator Materials" are performed. Therefore, in the design of the military packaging inner material, a material that has good compatibility with the packaged product is selected. 
Seven, mechanical strength
The military product packaging materials must have sufficient mechanical strength to ensure that the military products will not be damaged by crushing, friction, impact, vibration, or falling during stacking, loading, unloading, transportation, and storage. Therefore, during the design process of military packaging, according to relevant military standards, a combination of optimized materials with good mechanical strength was selected to enhance the mechanical properties of packaging materials such as breaking force, right-angled tearing force, friction resistance, puncture resistance, and cushioning performance to ensure military products. The tactical technical performance is conducive to long-term storage. After the military product's packaging is tested according to the military transport package test method, the internal military products meet the requirements of the corresponding product standards. 
The development of military product packaging technology must also be based on the characteristics of the material's aging resistance and environmental weatherability to ensure that military products’ tactical and technical performance in various harsh natural environments such as high temperature, low temperature, high humidity and high salt spray. . According to the characteristics of large intensity in wartime and bad environment, it is necessary to focus on the issue of military packaging protection under field conditions, and to give full play to packaging is not only a "bearing body" that adverse environmental factors affect the quality of equipment, but also the realization of logistics support and equipment support capabilities. The functions of "body" and "transmission of information" "connectors" and other functions give the PLA its existing equipment and equipment to meet the needs of modern local high-tech warfare. It also meets the requirements for the protection of mechanized loading and unloading and containerized transport, and realizes the storage equipment and equipment guarantees. "Maintenance," "enclosed guarantees" for carrying equipment and equipment, "integration of equipment and equipment supply" guarantees, and "controllability" for the entire process ensure that military packaging plays an active and effective role in military struggle.
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