A composite material for explosives protection equipment and preparation method thereof

Abstract

The present invention provides a composite material for pyrotechnic protective equipment and a preparation method thereof, which is composed of a waterproof layer, a heat insulation layer, an electromagnetic shielding layer and an antistatic layer that are bonded and connected in sequence from the inside to the outside, wherein the waterproof layer adopts PVC mesh cloth, the heat insulation layer adopts aramid aluminum foil cloth, the electromagnetic shielding layer adopts shielding fabric, and the antistatic layer adopts conductive fabric; the preparation method adopts special equipment containing multiple sets of unwinding rollers, traction rollers, and pressure rollers. The composite material for pyrotechnic protective equipment prepared by the present invention has excellent waterproofness, electromagnetic shielding capability, heat insulation, flame retardancy, and antistatic properties, meeting the needs of pyrotechnic protective equipment. The present invention not only has the advantages of being able to quickly prepare a composite material for pyrotechnic protective equipment with a multi-layered structure, and has the advantages of low cost, simplicity and speed, but also has the advantages of flexibly adjusting the tension of the belt.

Description

Technical Field

[0001] The present invention relates to the technical field of pyrotechnic protection materials for amphibious scenarios, and in particular to a composite material for pyrotechnic protection equipment and a preparation method thereof. Background Art

[0002] Pyrotechnic protective gear is mainly used to ensure the supply and protection of ammunition and other materials during the armed swimming or beach landing of infantry units, to meet the carrying and protection of field ammunition such as light weapons ammunition, individual rockets and blasting equipment under amphibious conditions, and to reduce the impact of oceans, rivers, lakes and other environments on the quality and performance of ammunition. Pyrotechnic protective gear materials must meet special requirements such as waterproofness, electromagnetic shielding, heat insulation, flame retardancy, and anti-static properties, but a single material structure is difficult to meet the above requirements at the same time. The emergence of composite materials provides ideas for pyrotechnic protective gear materials. The composite process and equipment of heterogeneous materials are one of the most important factors affecting the comprehensive performance of composite materials. Therefore, in addition to the reasonable design of composite materials and structures, the molding process and equipment of composite materials are also the top priority of research.

[0003] The existing document CN113635627A provides a multifunctional layered aluminum-plastic cloth composite film, including an aluminum foil layer, the upper surface of the aluminum foil layer is bonded with a thermoplastic polymer outer film layer, the upper surface of the thermoplastic polymer outer film layer is bonded with a cloth base layer; the lower surface of the aluminum foil layer is bonded with a thermoplastic polymer inner film layer, the lower surface of the thermoplastic polymer inner film layer is bonded with an antistatic polyethylene layer for antistatic. This scheme focuses on the antistatic and moisture barrier properties of composite packaging materials for general products. Its application is essentially different from the use scenario of pyrotechnic protective equipment and cannot be used as a material for making pyrotechnic protective equipment.

[0004] More importantly, there is currently no low-cost, simple, fast and stable preparation method for composite materials of pyrotechnic protective equipment with a multi-layered structure. Summary of the invention

[0005] In view of the technical problems mentioned in the background technology, the present invention aims to provide a composite material for pyrotechnic protective equipment and a preparation method thereof.

[0006] The technical solution adopted by the present invention is as follows.

[0007] A composite material for explosive device protection equipment, which is composed of a waterproof layer, a heat insulation layer, an electromagnetic shielding layer and an antistatic layer bonded and connected in sequence from the inside to the outside, wherein the waterproof layer is made of PVC mesh cloth, the heat insulation layer is made of aramid aluminum foil cloth, the electromagnetic shielding layer is made of shielding fabric, and the antistatic layer is made of conductive fabric. Preferably, the thickness of the waterproof layer is 0.25-0.45 mm, the thickness of the heat insulation layer is 0.15-0.35 mm, the thickness of the electromagnetic shielding layer is 0.05-0.25 mm, and the thickness of the antistatic layer is 0.05-0.10 mm.

[0008] Preferably, the PVC mesh cloth material is one or both of PVC polyester fiber cloth and PVC nylon fiber cloth; the aramid aluminum foil cloth material is one or both of para-aramid staple fiber aluminum foil cloth and meta-aramid staple fiber aluminum foil cloth; the shielding fabric is one or more of copper-nickel plated fiber cloth, silver fiber shielding cloth, stainless steel fiber radiation-proof cloth, and carbon fiber cloth; the conductive fabric is one or both of aromatic-carbon mixed cloth and stainless steel wire mixed cloth.

[0009] Preferably, the adhesive for bonding adjacent layers is one or two of Crown high temperature resistant oily glue, Crown hot melt embroidery glue, UBISHENG butter glue, 3M9448A white glue, and 3M9080 white glue.

[0010] Preferably, the adhesive for bonding adjacent layers is a double-sided adhesive tape, and a dense adhesive layer is formed after the release paper of the double-sided adhesive tape is torn off and the adhesive is compressed.

[0011] The preparation method of the composite material of pyrotechnic protective equipment of the present invention comprises the following steps:

[0012] Step 1, respectively install the PVC mesh cloth roll, the aramid aluminum foil cloth roll, the shielding fabric roll and the conductive fabric roll on the No. 1 unwinding roller, the No. 2 unwinding roller, the No. 3 unwinding roller and the No. 4 unwinding roller of the special equipment; install the adhesive roll A on the No. 5 unwinding roller of the special equipment, install the adhesive roll B on the No. 6 unwinding roller of the special equipment, and install the adhesive roll C on the No. 7 unwinding roller of the special equipment;

[0013] Step 2, the adhesive roll A passes through the second traction roller, and the PVC mesh cloth roll passes through the first traction roller. When the unfolded parts of the adhesive roll A and the PVC mesh cloth roll simultaneously pass through the supporting pressure rollers No. Ⅰ and No. Ⅱ, the gluing of the waterproof layer is completed;

[0014] Step 3, peel off the release paper of the adhesive layer on the surface of the waterproof layer in step 2, and reel it up through the No. 1 release paper reeling roller, and the remaining product 1 (i.e., the waterproof layer with the adhesive layer) passes through the third traction roller; the aramid aluminum foil cloth roll passes through the fourth traction roller, and the adhesive roll B passes through the fifth traction roller. When the unfolded parts of the remaining product 1, the aramid aluminum foil cloth roll and the adhesive roll B simultaneously pass through the supporting pressure rollers No. Ⅲ and No. Ⅳ, the preparation and gluing of the waterproof layer-thermal insulation layer are completed;

[0015] Step 4, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer in step 3, and reel it up through the No. 2 release paper reeling roller, and the remaining product 2 (i.e., the waterproof layer-insulating layer with an adhesive layer) passes through the sixth traction roller; the shielding fabric roll passes through the seventh traction roller, and the adhesive roll C passes through the eighth traction roller. When the unfolded parts of the remaining product 2, the shielding fabric roll and the adhesive roll C simultaneously pass through the matching pressure roller No. V and pressure roller No. VI, the preparation and gluing of the waterproof layer-insulating layer-electromagnetic shielding layer are completed;

[0016] Step 5, peeling off the release paper of the surface adhesive layer of the waterproof layer-thermal insulation layer-electromagnetic shielding layer in step 4, and winding it through the No. 3 release paper winding roller, the remaining product 3 (i.e., the waterproof layer-thermal insulation layer-electromagnetic shielding layer with an adhesive layer) passes through the ninth traction roller, and the conductive fabric roll passes through the tenth traction roller. When the remaining product 3 and the unfolded part of the conductive fabric roll simultaneously pass through the matching pressure roller No. VII and pressure roller No. VIII, a composite material of the waterproof layer-thermal insulation layer-electromagnetic shielding-antistatic layer is obtained;

[0017] Step 6, winding the obtained composite material through an eleventh traction roller and a winding roller.

[0018] In the present invention, the special equipment includes: from left to right, the No. 1 unwinding roller, the No. 5 unwinding roller, the No. 2 unwinding roller, the No. 6 unwinding roller, the No. 3 unwinding roller, the No. 7 unwinding roller, and the No. 4 unwinding roller are arranged side by side and at intervals; the first traction roller, the second traction roller, the fourth traction roller, the fifth traction roller, the seventh traction roller, the eighth traction roller, the tenth traction roller, and the eleventh traction roller are arranged side by side and at intervals, and each set of traction rollers is equipped with a deviation corrector; the No. 1 release paper winding roller, the No. 2 release paper winding roller, and the No. 3 release paper winding roller are arranged side by side and at intervals; the No. Ⅰ pressure roller-No. Ⅱ pressure roller, the No. Ⅲ pressure roller-No. Ⅳ pressure roller, the No. Ⅴ pressure roller-No. Ⅵ pressure roller, the No. Ⅶ pressure roller-No. Ⅷ pressure roller are arranged in matching arrangement; A third traction roller is arranged between pressure roller No. Ⅰ-pressure roller No. Ⅱ and pressure roller No. Ⅲ-pressure roller No. Ⅳ, a sixth traction roller is arranged between pressure roller No. Ⅲ-pressure roller No. Ⅳ and pressure roller No. Ⅴ-pressure roller No. Ⅵ, and a ninth traction roller is arranged between pressure roller No. Ⅴ-pressure roller No. Ⅵ and pressure roller No. Ⅶ-pressure roller No. Ⅷ respectively; the traction roller and release paper winding roller used for traction of adhesive rolls are both located on the inner side of the corresponding pressure rollers, and the traction roller and release paper winding roller used for traction of adhesive rolls and their corresponding pressure rollers are respectively arranged at the three vertices of the same acute-angle triangle structure; each unwinding roller, traction roller, deviation corrector, winding roller and pressure roller are respectively connected to the control system and operated through the control system controller.

[0019] In the present invention, the special equipment further includes a tension sensor for monitoring the tension of each material strip, and a pressure sensor for monitoring the pressure of each matching pressure roller; the memory of the control system stores a program that can be run on the processor, and the processor implements the following steps when executing the program:

[0020] S1, when it is first detected that the tension of a single-layer material strip is too small, the unwinding roller corresponding to the single-layer material strip is controlled to rotate in the reverse direction, until the tension of the single-layer material strip reaches the threshold range, and then the corresponding unwinding roller is controlled to rotate in the forward direction at a preset speed;

[0021] S2, when it is first detected that the tension of a single-layer material strip is too large, the unwinding roller corresponding to the single-layer material strip is controlled to accelerate, and then the corresponding unwinding roller is controlled to rotate at a preset speed until the tension of the single-layer material strip reaches a threshold range;

[0022] S3, when it is first detected that the tension of a multi-layer material strip is too small, the unwinding roller upstream of the multi-layer material strip is controlled to slow down, and then the unwinding roller upstream of the multi-layer material strip is controlled to run at a preset speed until the tension of the multi-layer material strip reaches the threshold range; when it is first detected that the tension of a multi-layer material strip is too large, execute according to step S2;

[0023] S4, when it is simultaneously monitored that the tension of a single-layer material strip and a multi-layer material strip deviates from the threshold range, the dedicated equipment is controlled to stop;

[0024] S5, when it is monitored that the pressure of a matching pressure roller is too small, the matching pressure rollers are controlled to move closer to each other until their pressure reaches the preset range; when it is monitored that the pressure of a matching pressure roller is too large, the matching pressure rollers are controlled to move away from each other until their pressure reaches the preset range. Among them, the matching pressure roller values ​​are "pressure roller No. I - pressure roller No. II", "pressure roller No. III - pressure roller No. IV", "pressure roller No. V - pressure roller No. VI" or "pressure roller No. VII - pressure roller No. VIII".

[0025] In order to further improve the stability of the prepared composite material of pyrotechnic protective equipment, the preset pressure of pressure roller No. Ⅰ-pressure roller No. Ⅱ is less than or equal to the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ, the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ is equal to the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ, and the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ is greater than or equal to the preset pressure of pressure roller No. Ⅶ-pressure roller No. Ⅷ.

[0026] Beneficial effects: The composite material for pyrotechnic protective equipment prepared by the present invention has excellent waterproofness, electromagnetic shielding ability, heat insulation, flame retardancy, and antistatic properties, meeting the needs of pyrotechnic protective equipment, and its surface resistivity can reach (2.4-9.8)*10 7 Ω, thermal conductivity is 0.025-0.030W / (m·k); the scheme of the present invention not only has the advantages of being able to quickly prepare a composite material for pyrotechnic protective equipment with a multi-layered structure, but also has the advantages of being low-cost and simple and fast. A composite material for pyrotechnic protective equipment with a length of 70-120 meters and a width of 1.5 meters can be prepared per minute, and the tension of the belt can be flexibly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the composite material structure of the pyrotechnic protective equipment in the embodiment;

[0028] Figure 2 Schematic diagram of special equipment in the embodiment. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the description of the following embodiments is only used to help understand the principle and core idea of ​​the present invention, and is not intended to limit the scope of protection of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, improvements made to the present invention also fall within the scope of protection of the claims of the present invention.

[0030] A composite material for explosives protection equipment, such as Figure 1As shown, it is composed of a waterproof layer, a heat insulation layer, an electromagnetic shielding layer and an antistatic layer which are bonded and connected in sequence from the inside to the outside, wherein the waterproof layer adopts PVC mesh cloth 400, the heat insulation layer adopts aramid aluminum foil cloth 100, the electromagnetic shielding layer adopts shielding fabric 200, and the antistatic layer adopts conductive fabric 300. The material of PVC mesh cloth 400 is one or two of PVC polyester fiber cloth and PVC nylon fiber cloth; the material of aramid aluminum foil cloth 100 is one or two of para-aramid short fiber aluminum foil cloth and meta-aramid short fiber aluminum foil cloth; the shielding fabric 200 is one or more of copper-nickel plated fiber cloth, silver fiber shielding cloth, stainless steel fiber radiation-proof cloth, and carbon fiber cloth; the conductive fabric 300 is one or two of aromatic carbon mixed cloth and stainless steel wire mixed cloth. The adhesive for bonding and connecting adjacent layers adopts one or two of Crown high temperature resistant oily glue, Crown hot melt embroidery glue, Ubisheng butter glue, 3M9448A white glue, and 3M9080 white glue. The adhesive for bonding adjacent layers is a double-sided adhesive. After the release paper of the double-sided adhesive is torn off and the adhesive is compressed, a dense adhesive layer 500 is formed, that is, the adjacent layers are bonded together through the adhesive layer 500.

[0031] Special equipment for preparing composite materials for explosives protective equipment, such as Figure 2 As shown, it includes: from left to right, the No. 1 unwinding roller ( Figure 2 No. 1 in the middle), No. 5 unwinding roller ( Figure 2 No. 5 in the middle), No. 2 unwinding roller ( Figure 2 No. 2 in the middle), No. 6 unwinding roller ( Figure 2 No. 6 in the middle), No. 3 unwinding roller ( Figure 2 No. 3 in the middle), No. 7 unwinding roller ( Figure 2 No. 7 in the middle), No. 4 unwinding roller ( Figure 2 The first traction rollers (indicated by number 4 in the figure); arranged side by side and at intervals Figure 2 Indicated by number ①), the second traction roller ( Figure 2 Indicated by the number ②), the fourth traction roller ( Figure 2 The fifth traction roller ( Figure 2 The seventh traction roller ( Figure 2 The eighth traction roller ( Figure 2 The number ⑧ indicates), the tenth traction roller ( Figure 2 The eleventh traction roller ( Figure 2 Each set of traction rollers is equipped with a deviation corrector; the No. 1 release paper take-up roller ( Figure 2 Number (1) indicates), No. 2 release paper take-up roller ( Figure 2 Number (2) in the middle), No. 3 release paper take-up roller ( Figure 2 Medium No.( Indicated); the matching arrangement of No. Ⅰ pressure roller ( Figure 2 Symbol Ⅰ in the middle)-No. Ⅱ pressure roller ( Figure 2 Symbol Ⅱ), pressure roller Ⅲ ( Figure 2 Symbol Ⅲ)-No. Ⅳ pressure roller ( Figure 2 The symbol Ⅳ indicates), No. Ⅴ pressure roller ( Figure 2 Symbol V in the middle)-No. VI pressure roller ( Figure 2 The symbol Ⅵ indicates), Ⅶ pressure roller ( Figure 2 Symbol Ⅶ in the middle)-No. Ⅷ pressure roller ( Figure 2 The third traction roller is arranged between pressure rollers Ⅰ and Ⅱ and pressure rollers Ⅲ and Ⅳ, the sixth traction roller is arranged between pressure rollers Ⅲ and Ⅳ and pressure rollers Ⅴ and Ⅵ, and the ninth traction roller is arranged between pressure rollers Ⅴ and Ⅵ and pressure rollers Ⅶ and Ⅷ; the traction rollers and release paper winding rollers for traction of adhesive rolls are located on the inner side of the corresponding pressure rollers, and the traction rollers, release paper winding rollers and their corresponding pressure rollers for traction of adhesive rolls are arranged at the three vertices of the same acute triangle structure; each unwinding roller, traction roller, deviation corrector, winding roller and pressure roller are connected to the control system respectively and run through the control system controller. It also includes a tension sensor for monitoring the tension of each material strip and a pressure sensor for monitoring the pressure of each matching pressure roller; the memory of the control system stores a program that can be run on the processor, and the processor implements the following steps when executing the program:

[0032] S1, when it is first detected that the tension of a single-layer material strip is too small, the unwinding roller corresponding to the single-layer material strip is controlled to rotate in the reverse direction, until the tension of the single-layer material strip reaches the threshold range, and then the corresponding unwinding roller is controlled to rotate in the forward direction at a preset speed;

[0033] S2, when it is first detected that the tension of a single-layer material strip is too large, the unwinding roller corresponding to the single-layer material strip is controlled to accelerate, and then the corresponding unwinding roller is controlled to rotate at a preset speed until the tension of the single-layer material strip reaches a threshold range;

[0034] S3, when it is first detected that the tension of a multi-layer material strip is too small, the unwinding roller upstream of the multi-layer material strip is controlled to slow down, and then the unwinding roller upstream of the multi-layer material strip is controlled to run at a preset speed until the tension of the multi-layer material strip reaches the threshold range; when it is first detected that the tension of a multi-layer material strip is too large, execute according to step S2;

[0035] S4, when it is simultaneously monitored that the tension of a single-layer material strip and a multi-layer material strip deviates from the threshold range, the dedicated equipment is controlled to stop;

[0036] S5, when it is monitored that the pressure of a matching pressure roller is too small, the matching pressure rollers are controlled to move closer to each other until the pressure reaches a preset range; when it is monitored that the pressure of a matching pressure roller is too large, the matching pressure rollers are controlled to move away from each other until the pressure reaches a preset range.

[0037] During use, the preset pressure of pressure roller No. Ⅰ and pressure roller No. Ⅱ is smaller than the preset pressure of pressure roller No. Ⅲ and pressure roller No. Ⅳ, the preset pressure of pressure roller No. Ⅲ and pressure roller No. Ⅳ is smaller than the preset pressure of pressure roller No. Ⅴ and pressure roller No. Ⅵ, the preset pressure of pressure roller No. Ⅴ and pressure roller No. Ⅵ is smaller than the preset pressure of pressure roller No. Ⅶ and pressure roller No. Ⅷ, and the pressure difference between any adjacent matching pressure rollers is 100-150N.

[0038] Example 1

[0039] A method for preparing a composite material for pyrotechnic protective equipment, comprising the following steps:

[0040] Step 1, respectively install the PVC polyester fiber cloth roll, the para-aramid aluminum foil cloth roll, the copper-nickel fiber cloth roll and the aromatic-carbon mixed cloth roll on the No. 1 unwinding roller, the No. 2 unwinding roller, the No. 3 unwinding roller and the No. 4 unwinding roller of the special equipment; install the adhesive roll A on the No. 5 unwinding roller of the special equipment, install the adhesive roll B on the No. 6 unwinding roller of the special equipment, and install the adhesive roll C on the No. 7 unwinding roller of the special equipment; each adhesive roll adopts 3M9080 white film material;

[0041] Step 2, the adhesive roll A passes through the second traction roller, and the PVC mesh cloth roll passes through the first traction roller. When the unfolded parts of the adhesive roll A and the PVC mesh cloth roll pass through the pressure roller No. I and the pressure roller No. II at the same time, the gluing of the waterproof layer (PVC polyester fiber cloth) is completed;

[0042] Step 3, peel off the release paper of the surface adhesive layer of the waterproof layer in step 2, and reel it up through the No. 1 release paper reeling roller, and the remaining product 11 passes through the third traction roller; the aramid aluminum foil cloth roll passes through the fourth traction roller, and the adhesive roll B passes through the fifth traction roller. When the unfolded parts of the remaining product 11, the aramid aluminum foil cloth roll and the adhesive roll B pass through the No. III pressure roller and the No. IV pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer are completed, that is, the PVC sandwich polyester fiber cloth / para-aramid aluminum foil cloth composite material is obtained, and the gluing of the para-aramid aluminum foil cloth is completed at the same time;

[0043] Step 4, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer in step 3, and reel it up through the No. 2 release paper reeling roller, and the remaining product 2 12 passes through the sixth traction roller; the shielding fabric roll passes through the seventh traction roller, and the adhesive roll C passes through the eighth traction roller. When the unfolded parts of the remaining product 2 12, the shielding fabric roll and the adhesive roll C pass through the No. Ⅴ pressure roller and the No. Ⅵ pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer-electromagnetic shielding layer are completed, that is, the PVC sandwich polyester fiber cloth / para-aramid aluminum foil cloth / copper-nickel plated fiber cloth composite material is obtained, and the gluing of the copper-nickel plated fiber cloth is completed at the same time;

[0044] Step 5, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer-electromagnetic shielding layer in step 4, and reel it up through the No. 3 release paper reeling roller, the remaining product three 13 passes through the ninth traction roller, and the conductive fabric roll passes through the tenth traction roller. When the remaining product three 13 and the unfolded part of the conductive fabric roll simultaneously pass through the No. VII pressure roller and the No. VIII pressure roller, a composite material of a waterproof layer-insulating layer-electromagnetic shielding-antistatic layer is obtained, that is, a composite material of PVC sandwiched with polyester fiber cloth / para-aramid aluminum foil cloth / copper-nickel-plated fiber cloth / aromatic-carbon mixed cloth is obtained;

[0045] Step 6, winding the obtained composite material through an eleventh traction roller and a winding roller.

[0046] In this example, the preset pressure of pressure roller No. Ⅰ-pressure roller No. Ⅱ is controlled to be 100 N, the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ is controlled to be 150 N, the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ is controlled to be 150 N, and the preset pressure of pressure roller No. Ⅶ-pressure roller No. Ⅷ is controlled to be 100 N. In this example, the thickness of the waterproof layer of the composite material obtained is 0.25 mm, the thickness of the heat insulation layer is 0.15 mm, the thickness of the electromagnetic shielding layer is 0.15 mm, and the thickness of the antistatic layer is 0.10 mm.

[0047] Example 2

[0048] A method for preparing a composite material for pyrotechnic protective equipment, comprising the following steps:

[0049] Step 1, respectively install the PVC polyester fiber cloth coil, the para-aramid aluminum foil cloth coil, the silver fiber shielding cloth coil and the stainless steel wire mixed cloth coil on the No. 1 unwinding roller, the No. 2 unwinding roller, the No. 3 unwinding roller and the No. 4 unwinding roller of the special equipment; install the adhesive coil A on the No. 5 unwinding roller of the special equipment, install the adhesive coil B on the No. 6 unwinding roller of the special equipment, and install the adhesive coil C on the No. 7 unwinding roller of the special equipment; each adhesive coil adopts the Ubisheng butter adhesive coil;

[0050] Step 2, the adhesive roll A passes through the second traction roller, and the PVC mesh cloth roll passes through the first traction roller. When the unfolded parts of the adhesive roll A and the PVC mesh cloth roll pass through the pressure roller No. I and the pressure roller No. II at the same time, the gluing of the waterproof layer (PVC polyester fiber cloth) is completed;

[0051] Step 3, peel off the release paper of the surface adhesive layer of the waterproof layer in step 2, and reel it up through the No. 1 release paper reeling roller, and the remaining product 11 passes through the third traction roller; the aramid aluminum foil cloth roll passes through the fourth traction roller, and the adhesive roll B passes through the fifth traction roller. When the unfolded parts of the remaining product 11, the aramid aluminum foil cloth roll and the adhesive roll B pass through the No. III pressure roller and the No. IV pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer are completed, that is, the PVC sandwich polyester fiber cloth / para-aramid aluminum foil cloth composite material is obtained, and the gluing of the para-aramid aluminum foil cloth is completed at the same time;

[0052] Step 4, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer in step 3, and reel it up through the No. 2 release paper reeling roller, and the remaining product 2 12 passes through the sixth traction roller; the shielding fabric roll passes through the seventh traction roller, and the adhesive roll C passes through the eighth traction roller. When the unfolded parts of the remaining product 2 12, the shielding fabric roll and the adhesive roll C pass through the No. Ⅴ pressure roller and the No. Ⅵ pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer-electromagnetic shielding layer are completed, that is, the PVC sandwich polyester fiber cloth / para-aramid aluminum foil cloth / silver fiber shielding cloth composite material is obtained, and the gluing of the silver fiber shielding cloth is completed at the same time;

[0053] Step 5, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer-electromagnetic shielding layer in step 4, and reel it up through the No. 3 release paper reeling roller, the remaining product three 13 passes through the ninth traction roller, and the conductive fabric roll passes through the tenth traction roller. When the remaining product three 13 and the unfolded part of the conductive fabric roll simultaneously pass through the No. VII pressure roller and the No. VIII pressure roller, a composite material of a waterproof layer-insulating layer-electromagnetic shielding-antistatic layer is obtained, that is, a composite material of PVC sandwiched with polyester fiber cloth / para-aramid aluminum foil cloth / silver fiber shielding cloth / stainless steel wire mixed cloth is obtained;

[0054] Step 6, winding the obtained composite material through an eleventh traction roller and a winding roller.

[0055] In this example, the preset pressure of pressure roller No. Ⅰ-pressure roller No. Ⅱ is controlled to be 150 N, the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ is controlled to be 150 N, the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ is controlled to be 150 N, and the preset pressure of pressure roller No. Ⅶ-pressure roller No. Ⅷ is controlled to be 150 N. In this example, the thickness of the waterproof layer of the composite material obtained is 0.25 mm, the thickness of the heat insulation layer is 0.15 mm, the thickness of the electromagnetic shielding layer is 0.05 mm, and the thickness of the antistatic layer is 0.10 mm.

[0056] Example 3

[0057] A method for preparing a composite material for pyrotechnic protective equipment, comprising the following steps:

[0058] Step 1, respectively install the PVC polyester fiber cloth roll, the para-aramid aluminum foil cloth roll, the stainless steel fiber radiation protection cloth roll and the stainless steel wire mixed cloth roll on the No. 1 unwinding roller, the No. 2 unwinding roller, the No. 3 unwinding roller and the No. 4 unwinding roller of the special equipment; install the adhesive roll A on the No. 5 unwinding roller of the special equipment, install the adhesive roll B on the No. 6 unwinding roller of the special equipment, and install the adhesive roll C on the No. 7 unwinding roller of the special equipment; each adhesive roll adopts 3M9080 white film material;

[0059] Step 2, the adhesive roll A passes through the second traction roller, and the PVC mesh cloth roll passes through the first traction roller. When the unfolded parts of the adhesive roll A and the PVC mesh cloth roll pass through the pressure roller No. I and the pressure roller No. II at the same time, the gluing of the waterproof layer (PVC polyester fiber cloth) is completed;

[0060] Step 3, peel off the release paper of the surface adhesive layer of the waterproof layer in step 2, and reel it up through the No. 1 release paper reeling roller, and the remaining product 11 passes through the third traction roller; the aramid aluminum foil cloth roll passes through the fourth traction roller, and the adhesive roll B passes through the fifth traction roller. When the unfolded parts of the remaining product 11, the aramid aluminum foil cloth roll and the adhesive roll B pass through the No. III pressure roller and the No. IV pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer are completed, that is, the PVC sandwich polyester fiber cloth / para-aramid aluminum foil cloth composite material is obtained, and the gluing of the para-aramid aluminum foil cloth is completed at the same time;

[0061] Step 4, peel off the release paper of the surface adhesive layer of the waterproof layer-insulation layer in step 3, and reel it up through the No. 2 release paper reeling roller, and the remaining product 2 12 passes through the sixth traction roller; the shielding fabric roll passes through the seventh traction roller, and the adhesive roll C passes through the eighth traction roller. When the unfolded parts of the remaining product 2 12, the shielding fabric roll and the adhesive roll C pass through the No. Ⅴ pressure roller and the No. Ⅵ pressure roller at the same time, the preparation and gluing of the waterproof layer-insulation layer-electromagnetic shielding layer are completed, that is, the PVC sandwich polyester fiber cloth / para-aramid aluminum foil cloth / stainless steel fiber radiation-proof cloth composite material is obtained, and the gluing of the stainless steel fiber radiation-proof cloth is completed at the same time;

[0062] Step 5, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer-electromagnetic shielding layer in step 4, and reel it up through the No. 3 release paper reeling roller, the remaining product 3 13 passes through the ninth traction roller, and the conductive fabric roll passes through the tenth traction roller. When the remaining product 3 13 and the unfolded part of the conductive fabric roll simultaneously pass through the No. VII pressure roller and the No. VIII pressure roller, a composite material of the waterproof layer-insulating layer-electromagnetic shielding-antistatic layer is obtained, that is, a composite material of PVC sandwiched with polyester fiber cloth / para-aramid aluminum foil cloth / stainless steel fiber radiation protection cloth / stainless steel wire mixed cloth is obtained;

[0063] Step 6, winding the obtained composite material through an eleventh traction roller and a winding roller.

[0064] In this example, the preset pressure of pressure roller No. Ⅰ-pressure roller No. Ⅱ is controlled to be 100 N, the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ is controlled to be 100 N, the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ is controlled to be 100 N, and the preset pressure of pressure roller No. Ⅶ-pressure roller No. Ⅷ is controlled to be 100 N. In this example, the thickness of the waterproof layer of the composite material obtained is 0.35 mm, the thickness of the heat insulation layer is 0,35 mm, the thickness of the electromagnetic shielding layer is 0.15 mm, and the thickness of the antistatic layer is 0.08 mm.

[0065] Example 4

[0066] A method for preparing a composite material for pyrotechnic protective equipment, comprising the following steps:

[0067] Step 1, respectively install the PVC polyester fiber cloth roll, meta-aramid aluminum foil cloth roll, carbon fiber cloth roll and stainless steel wire mixed cloth roll on the No. 1 unwinding roller, No. 2 unwinding roller, No. 3 unwinding roller and No. 4 unwinding roller of the special equipment; install the adhesive roll A on the No. 5 unwinding roller of the special equipment, install the adhesive roll B on the No. 6 unwinding roller of the special equipment, and install the adhesive roll C on the No. 7 unwinding roller of the special equipment; the adhesive roll A adopts 3M9448A white film, and the adhesive roll B and the adhesive roll C both adopt Crown high temperature resistant oily film;

[0068] Step 2, the adhesive roll A passes through the second traction roller, and the PVC mesh cloth roll passes through the first traction roller. When the unfolded parts of the adhesive roll A and the PVC mesh cloth roll pass through the pressure roller No. I and the pressure roller No. II at the same time, the gluing of the waterproof layer (PVC polyester fiber cloth) is completed;

[0069] Step 3, peel off the release paper of the surface adhesive layer of the waterproof layer in step 2, and reel it up through the No. 1 release paper reeling roller, and the remaining product 11 passes through the third traction roller; the aramid aluminum foil cloth roll passes through the fourth traction roller, and the adhesive roll B passes through the fifth traction roller. When the unfolded parts of the remaining product 11, the aramid aluminum foil cloth roll and the adhesive roll B pass through the No. III pressure roller and the No. IV pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer are completed, that is, the PVC sandwich polyester fiber cloth / para-aramid aluminum foil cloth composite material is obtained, and the gluing of the meta-aramid aluminum foil cloth is completed at the same time;

[0070] Step 4, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer in step 3, and reel it up through the No. 2 release paper reeling roller, and the remaining product 2 12 passes through the sixth traction roller; the shielding fabric roll passes through the seventh traction roller, and the adhesive roll C passes through the eighth traction roller. When the unfolded parts of the remaining product 2 12, the shielding fabric roll and the adhesive roll C pass through the No. Ⅴ pressure roller and the No. Ⅵ pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer-electromagnetic shielding layer are completed, that is, the PVC sandwich polyester fiber cloth / meta-aramid aluminum foil cloth / carbon fiber cloth composite material is obtained, and the gluing of the carbon fiber cloth is completed at the same time;

[0071] Step 5, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer-electromagnetic shielding layer in step 4, and reel it up through the No. 3 release paper reeling roller, the remaining product 3 13 passes through the ninth traction roller, and the conductive fabric roll passes through the tenth traction roller. When the remaining product 3 13 and the unfolded part of the conductive fabric roll simultaneously pass through the No. VII pressure roller and the No. VIII pressure roller, a composite material of the waterproof layer-insulating layer-electromagnetic shielding-antistatic layer is obtained, that is, a composite material of PVC sandwiched with polyester fiber cloth / meta-aramid aluminum foil cloth / carbon fiber cloth / stainless steel wire mixed cloth is obtained;

[0072] Step 6, winding the obtained composite material through an eleventh traction roller and a winding roller.

[0073] In this example, the preset pressure of pressure roller No. Ⅰ-pressure roller No. Ⅱ is controlled to be 100 N, the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ is controlled to be 150 N, the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ is controlled to be 150 N, and the preset pressure of pressure roller No. Ⅶ-pressure roller No. Ⅷ is controlled to be 100 N. In this example, the thickness of the waterproof layer of the composite material obtained is 0.45 mm, the thickness of the heat insulation layer is 0.25 mm, the thickness of the electromagnetic shielding layer is 0.25 mm, and the thickness of the antistatic layer is 0.08 mm.

[0074] According to industry standards, the performance of the composite materials obtained in each embodiment was tested, and the test results are shown in Table 1. Among them, the flame retardancy was tested with reference to the 9th experimental step of GB / T 5455-2014, the electromagnetic shielding capability was tested with reference to the shielding effectiveness measurement method of large shields in GJB 5792-2006, the surface resistivity was tested with reference to the 8.3 surface resistivity in GB / T 12703.4-2010, the thermal conductivity was tested with reference to the 6th experimental step in GB / T 37796-2019, and the peel strength of the composite material was tested with reference to the 7th experimental step in FZ / T 60011-2016.

[0075] Table 1, Performance of Composite Materials for Explosive Equipment Protection Equipment in Examples

[0076]

[0077]

[0078]

[0079] The composite material for pyrotechnic protective equipment prepared by the present invention has excellent waterproofness, electromagnetic shielding ability, heat insulation, flame retardancy, and antistatic properties, meeting the requirements of pyrotechnic protective equipment, and its surface resistivity can reach (2.4-9.8)*10 7 Ω, thermal conductivity is 0.025-0.030W / (m·k); the scheme of the present invention not only has the advantage of being able to quickly prepare a composite material for pyrotechnic protective equipment with a multi-layered structure, which has the advantage of low cost, but also has the advantages of being simple, fast and efficient. A composite material for pyrotechnic protective equipment with a length of 70-120 meters and a width of 1.5 meters can be prepared per minute, and it also has the advantage of flexibly adjusting the tension of the belt.

Claims

1. A composite material for explosive device protection equipment, characterized in that: It is composed of a waterproof layer, a heat insulation layer, an electromagnetic shielding layer and an antistatic layer which are bonded and connected in sequence from the inside to the outside, wherein the waterproof layer is made of PVC mesh cloth (400), the heat insulation layer is made of aramid aluminum foil cloth (100), the electromagnetic shielding layer is made of shielding fabric (200), and the antistatic layer is made of conductive fabric (300); The material of the PVC mesh cloth (400) is one or both of PVC polyester fiber cloth and PVC nylon fiber cloth; the material of the aramid aluminum foil cloth (100) is one or both of para-aramid staple aluminum foil cloth and meta-aramid staple aluminum foil cloth; the shielding fabric (200) is one or more of copper-nickel plated fiber cloth, silver fiber shielding cloth, stainless steel fiber radiation protection cloth, and carbon fiber cloth; the conductive fabric (300) is one or both of aromatic-carbon mixed cloth and stainless steel wire mixed cloth.

2. The composite material for explosive device protection equipment according to claim 1, characterized in that: The adhesive for bonding adjacent layers is one or two of Crown high temperature resistant oily glue, Crown hot melt embroidery glue, UBISHENG butter glue, 3M9448A white glue, and 3M9080 white glue.

3. The composite material for pyrotechnic protective equipment according to claim 2, characterized in that: The adhesive for bonding adjacent layers is a double-sided adhesive. After the release paper of the double-sided adhesive is torn off and the adhesive is compressed, a dense adhesive layer (500) is formed.

4. The method for preparing the composite material for pyrotechnic protective equipment according to any one of claims 1 to 3, characterized in that: Here are the steps: Step 1, respectively install the PVC mesh cloth roll, the aramid aluminum foil cloth roll, the shielding fabric roll and the conductive fabric roll on the No. 1 unwinding roller, the No. 2 unwinding roller, the No. 3 unwinding roller and the No. 4 unwinding roller of the special equipment; install the adhesive roll A on the No. 5 unwinding roller of the special equipment, install the adhesive roll B on the No. 6 unwinding roller of the special equipment, and install the adhesive roll C on the No. 7 unwinding roller of the special equipment; Step 2, the adhesive roll A passes through the second traction roller, and the PVC mesh cloth roll passes through the first traction roller. When the unfolded parts of the adhesive roll A and the PVC mesh cloth roll pass through the pressure roller No. I and the pressure roller No. II at the same time, the gluing of the waterproof layer is completed; Step 3, peel off the release paper of the surface adhesive layer of the waterproof layer in step 2, and reel it up through the first release paper reeling roller, and the remaining product 1 (11) passes through the third traction roller; the aramid aluminum foil cloth roll passes through the fourth traction roller, and the adhesive roll B passes through the fifth traction roller. When the remaining product 1 (11), the aramid aluminum foil cloth roll and the unfolded part of the adhesive roll B pass through the third pressure roller and the fourth pressure roller at the same time, the preparation and gluing of the waterproof layer-heat insulation layer are completed; Step 4, peel off the release paper of the surface adhesive layer of the waterproof layer-insulating layer in step 3, and reel it up through the No. 2 release paper reeling roller, and the remaining product 2 (12) passes through the sixth traction roller; the shielding fabric roll passes through the seventh traction roller, and the adhesive roll C passes through the eighth traction roller. When the unfolded parts of the remaining product 2 (12), the shielding fabric roll and the adhesive roll C pass through the No. V pressure roller and the No. VI pressure roller at the same time, the preparation and gluing of the waterproof layer-insulating layer-electromagnetic shielding layer are completed; Step 5, peeling off the release paper of the surface adhesive layer of the waterproof layer-thermal insulation layer-electromagnetic shielding layer in step 4, and winding it through the No. 3 release paper winding roller, the remaining product three (13) passes through the ninth traction roller, and the conductive fabric roll passes through the tenth traction roller. When the remaining product three (13) and the unfolded part of the conductive fabric roll pass through the No. VII pressure roller and the No. VIII pressure roller at the same time, a composite material of the waterproof layer-thermal insulation layer-electromagnetic shielding-antistatic layer is obtained; Step 6, winding the obtained composite material through an eleventh traction roller and a winding roller.

5. The preparation method according to claim 4, characterized in that: The special equipment includes: from left to right, the No. 1 unwinding roller, the No. 5 unwinding roller, the No. 2 unwinding roller, the No. 6 unwinding roller, the No. 3 unwinding roller, the No. 7 unwinding roller, and the No. 4 unwinding roller arranged side by side and at intervals; the first traction roller, the second traction roller, the fourth traction roller, the fifth traction roller, the seventh traction roller, the eighth traction roller, the tenth traction roller, and the eleventh traction roller arranged side by side and at intervals, and each set of traction rollers is equipped with a deviation corrector; the No. 1 release paper winding roller, the No. 2 release paper winding roller, and the No. 3 release paper winding roller arranged side by side and at intervals; the matching arrangement of the No. Ⅰ pressure roller-No. Ⅱ pressure roller, the No. Ⅲ pressure roller-No. Ⅳ pressure roller, the No. Ⅴ pressure roller-No. Ⅵ pressure roller, the No. Ⅶ pressure roller-No. Ⅷ pressure roller; in the No. Ⅰ A third traction roller is arranged between pressure roller No. Ⅱ and pressure roller No. Ⅲ-pressure roller No. Ⅳ, a sixth traction roller is arranged between pressure roller No. Ⅲ-pressure roller No. Ⅳ and pressure roller No. Ⅴ-pressure roller No. Ⅵ, and a ninth traction roller is arranged between pressure roller No. Ⅴ-pressure roller No. Ⅵ and pressure roller No. Ⅶ-pressure roller No. Ⅷ; the traction roller and release paper winding roller used for traction of adhesive rolls are both located on the inner side of the corresponding pressure rollers, and the traction roller and release paper winding roller used for traction of adhesive rolls and their corresponding pressure rollers are respectively arranged at the three vertices of the same acute-angle triangle structure; each unwinding roller, traction roller, deviation corrector, winding roller and pressure roller are respectively connected to the control system, and their operation is controlled by the control system.

6. The preparation method according to claim 5, characterized in that It also includes a tension sensor for monitoring the tension of each material strip, and a pressure sensor for monitoring the pressure of each matching pressure roller; the memory of the control system stores a program that can be run on the processor, and when the processor executes the program, the following steps are implemented: S1, when it is detected that the tension of a single-layer material strip is too small, the unwinding roller corresponding to the single-layer material strip is controlled to rotate in the reverse direction, until the tension of the single-layer material strip reaches the threshold range, and then the corresponding unwinding roller is controlled to rotate in the forward direction at a preset speed; S2, when it is detected that the tension of a single-layer material strip is too large, the unwinding roller corresponding to the single-layer material strip is first controlled to accelerate, and then the corresponding unwinding roller is controlled to rotate at a preset speed until the tension of the single-layer material strip reaches the threshold range; S3, when it is detected that the tension of a multi-layer material strip is too low, first control the unwinding roller upstream of the multi-layer material strip to slow down, until the tension of the multi-layer material strip reaches the threshold range, then control the unwinding roller upstream to run at a preset speed; when it is detected that the tension of a multi-layer material strip is too high, execute according to step S2; S4, when it is simultaneously monitored that the tension of a single-layer material strip and a multi-layer material strip deviates from the threshold range, the dedicated equipment is controlled to stop; S5, when it is monitored that the pressure of a matching pressure roller is too small, the matching pressure rollers are controlled to move closer to each other until the pressure reaches a preset range; when it is monitored that the pressure of a matching pressure roller is too large, the matching pressure rollers are controlled to move away from each other until the pressure reaches a preset range.

7. The preparation method according to claim 5, characterized in that: The preset pressure of pressure roller No. Ⅰ-pressure roller No. Ⅱ is less than or equal to the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ, the preset pressure of pressure roller No. Ⅲ-pressure roller No. Ⅳ is equal to the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ, and the preset pressure of pressure roller No. Ⅴ-pressure roller No. Ⅵ is greater than or equal to the preset pressure of pressure roller No. Ⅶ-pressure roller No. Ⅷ.

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