Preparation process of polymer bulletproof material laminated fabric

Abstract

The invention provides a polymer bulletproof material laminated fabric preparation technology, and relates to the technical field of cloth preparation, and the polymer bulletproof material laminated fabric preparation technology is characterized by comprising the following steps: 1, uniformly mixing resin, an accelerator and a curing agent in a vacuum stirring device; step 2, feeding the cloth and the lower film into a corresponding mixing and dipping device, uniformly spraying a glue solution at the upper end of the cloth through a glue solution discharge port, flatly spreading the glue solution through a scraper for dipping glue, and then heating the surface of the cloth; step 3, flatly laying an upper film on the upper layer of the cloth, integrally feeding the cloth into a roller press to extrude bubbles in the glue solution, and compressing the overall thickness of the cloth; 4, detecting the thickness of the cloth by using a scale; 5, feeding the cloth into a curing oven for heating, so that the interlayer of the cloth is cured and shaped; and step 6, feeding the cloth into a corresponding cutting machine for cutting according to use requirements, and then performing arrangement and detection. The bulletproof fabric has the advantages that the bulletproof effect of the fabric is improved, meanwhile, the production process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cloth preparation, and in particular to a preparation process of polymer bulletproof material laminated fabric. Background Art

[0002] With the maturity of material technology and the development of composite preparation technology, more and more fabric preparation and production processes have been greatly improved. The bulletproof fabric made of Kevlar fiber commonly seen on the market is lighter overall, but when facing bullets with greater kinetic energy, its overall protective effect is poor and cannot meet actual use needs. Therefore, some bulletproof vest materials are replaced by fabrics with a higher strength cured glue layer. This composite fabric can absorb a certain amount of bullet kinetic energy and greatly improve the overall bulletproof effect. However, the current related preparation process has low processing efficiency and cannot meet actual production needs. Summary of the invention

[0003] The purpose of the present invention is to provide a preparation process of polymer bulletproof material laminated fabric, which solves the technical problems of complicated processing technology and low production efficiency of bulletproof fabric in the prior art, and achieves the technical effect of simplifying the production process and improving production efficiency.

[0004] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0005] A process for preparing a polymer bulletproof material laminated fabric comprises the following steps: Step 1, accurately measuring a resin, an accelerator and a curing agent through a proportional pump and then putting them into a vacuum stirring device for uniform mixing to form a mixed glue solution;

[0006] Step 2: Send the fabric and the lower film to the corresponding mixing and impregnation device, lay the fabric and the lower film flat, and then spray the glue evenly on the upper end of the fabric through the discharge port. At the same time, the glue is spread flat by an adjustable scraper for impregnation, and then the surface of the fabric is heated to preliminarily shape the glue and reduce liquid flow;

[0007] Step 3: After laying the upper film flat on the upper layer of the fabric, the entire fabric is sent into a roller press to squeeze out the bubbles in the glue and compress the overall thickness of the fabric;

[0008] Step 4: Use a ruler to measure the thickness of the fabric;

[0009] Step 5: Send the fabric into a curing furnace for heating to solidify the fabric interlayer;

[0010] Step 6: Feed the fabric into the corresponding cutting machine for cutting according to the use requirements, and then perform sorting and testing.

[0011] As an improvement, the glue in step one is composed of the following ingredients: 60% to 80% epoxy vinyl ester resin, 20% to 40% photoinitiator and photocuring agent mixed additives, and the glue can also be added with flame retardants, color pastes and fillers. The mixing processing time of the glue is one hour.

[0012] As an improvement, the cloth material in step 2 includes glass fiber, carbon fiber, PE fiber and aramid fiber. When the cloth is mixed with the glue, it needs to be placed in a corresponding coating mold to reduce glue waste.

[0013] As an improvement, the initial heating temperature in step 2 is controlled between 70° C. and 90° C., and the overall heating time is 3 to 5 minutes.

[0014] As an improvement, the heating and curing temperature in step five is 90°C to 130°C, and the heating time is 30 to 60 minutes. During the heating process, it is necessary to ensure that the fabric is evenly heated, and at the same time, a rapid heat dissipation device is required to quickly cool down the local areas where the temperature is too high.

[0015] As an improvement, the cutting in step six requires the use of water-cooled cutting to cool and remove dust from the cutting saw blade, and the water slurry containing dust will be recovered, precipitated and discharged.

[0016] The beneficial effects of the present invention are as follows: by applying curable glue on the fabric, the overall toughness of the fabric can be improved after curing, and the anti-ballistic performance of the fabric can be improved; by preliminarily heat-curing the fabric, the waste of glue can be reduced; the overall structural connection strength can be further improved by extrusion; the overall structural strength can be further improved by heat curing, and the overall processing and preparation time can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a flow chart of a process for preparing a polymer bulletproof material laminated fabric. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] It should be noted that the terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0020] like Figure 1 As shown, a process for preparing a polymer bulletproof material laminated fabric comprises the following steps:

[0021] Step 1: After the resin, accelerator and curing agent are accurately measured by a proportional pump, they are put into a vacuum stirring device for uniform mixing to form a mixed glue solution; Step 2: The cloth and the lower film are sent to the corresponding mixing and impregnation device, and after the cloth and the lower film are laid flat, the glue solution is evenly sprayed on the upper end of the cloth through the discharge port, and at the same time, the glue solution is spread flat by an adjustable scraper for impregnation, and then the surface of the cloth is heated to preliminarily shape the glue solution and reduce liquid flow; Step 3: After the upper film is laid flat on the upper layer of the cloth, the entire cloth is sent into a roller press to squeeze out the bubbles in the glue solution and compress the overall thickness of the cloth; Step 4: Use a ruler to measure the thickness of the cloth; Step 5: Send the cloth into a curing furnace for heating to cure and shape the cloth interlayer; Step 6: Send the cloth into a corresponding cutting machine for cutting according to the use requirements, and then carry out sorting and inspection. During the process of spreading the cloth flat, a corresponding cleaning device needs to be used to clean the upper and lower surfaces of the cloth to reduce impurities in the gap between the panel and the cloth. The amount of glue applied can be controlled by adjusting the scraper height.

[0022] In the step 1, the glue is composed of the following ingredients: 60% to 80% epoxy vinyl ester resin, 20% to 40% photoinitiator and photocuring agent mixed additives. The glue can also add flame retardants, color pastes and fillers. The mixing processing time of the glue is one hour. In the step 2, the fabric material includes glass fiber, carbon fiber, PE fiber and aramid fiber. When the fabric is mixed with the glue, it needs to be placed in the corresponding coating mold to reduce the waste of glue. In the step 2, the initial heating temperature is controlled between 70°C and 90°C, and the overall heating time is 3 to 5 minutes. In the step 5, the heating and curing temperature is 90°C to 130°C, and the heating time is 30 to 60 minutes. During the heating process, it is necessary to ensure that the fabric is evenly heated, and at the same time, it is necessary to cooperate with a rapid heat dissipation device to quickly cool down the local position where the temperature is too high. In the step 6, cutting requires the use of water-cooled cutting to cool and remove dust from the cutting saw blade, and the water slurry containing dust will be recycled and precipitated and discharged. The fabric product is considered complete when the curing degree reaches 85%. The strength of the fabric increases continuously within one year after production as the glue solidifies.

[0023] When in use, the glue liquid raw materials are filtered through the filter tank after mixing and then enter the proportional pump. At this time, the cleaned cloth will be bonded to the lower film, and the glue liquid will be sprayed at the upper end. After being evenly applied by the scraper, the hot air blower will preheat and press the material that has been bonded to the upper film. Then the cloth enters the curing furnace for reheating and curing. When cooling is completed, the film can be removed and cut and rolled up.

[0024] During use, two sets of cloth without top film can be bonded together to achieve the processing and fixation of double-layer cloth; the cloth can also be replaced with chopped glass fiber mat with a thickness of 0.8mm to 3mm, and the heating temperature of the curing furnace is 130°C.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A process for preparing a polymer bulletproof material laminated fabric, characterized in that: The following steps are involved: Step 1: accurately measure the resin, accelerator and curing agent through a proportional pump and put them into a vacuum stirring device for uniform mixing to form a mixed glue solution; Step 2: Send the fabric and the lower film to the corresponding mixing and impregnation device, lay the fabric and the lower film flat, and then spray the glue evenly on the upper end of the fabric through the discharge port. At the same time, the glue is spread flat by an adjustable scraper for impregnation, and then the surface of the fabric is heated to preliminarily shape the glue and reduce liquid flow; Step 3: After laying the upper film flat on the upper layer of the fabric, the entire fabric is sent into a roller press to squeeze out the bubbles in the glue and compress the overall thickness of the fabric; Step 4: Use a ruler to measure the thickness of the fabric; Step 5: Send the fabric into a curing furnace for heating to solidify the fabric interlayer; Step 6: Feed the fabric into the corresponding cutting machine for cutting according to the use requirements, and then perform sorting and testing.

2. The process for preparing a polymer bulletproof material laminated fabric according to claim 1, characterized in that: The glue in step 1 is composed of the following ingredients: 60% to 80% epoxy vinyl ester resin, 20% to 40% photoinitiator and photocuring agent mixed additives, and the glue can also be added with flame retardants, color pastes and fillers. The mixing processing time of the glue is one hour.

3. The process for preparing a polymer bulletproof material laminated fabric according to claim 1, characterized in that: The cloth material in step 2 includes glass fiber, carbon fiber, PE fiber and aramid fiber. When the cloth is mixed with the glue, it needs to be placed in a corresponding coating mold to reduce glue waste.

4. The process for preparing a polymer bulletproof material laminated fabric according to claim 1, characterized in that: In the step 2, the initial heating temperature is controlled between 70° C. and 90° C., and the overall heating time is 3 to 5 minutes.

5. The process for preparing a polymer bulletproof material laminated fabric according to claim 1, characterized in that: In the step 5, the heating curing temperature is 90° C. to 130° C., and the heating time is 30 to 60 minutes. During the heating process, the fabric must be heated evenly, and a rapid heat dissipation device must be used to quickly cool down the local areas where the temperature is too high.

6. The process for preparing a polymer bulletproof material laminated fabric according to claim 1, characterized in that: The cutting in step six requires the use of water-cooled cutting to cool and remove dust from the cutting saw blade, and the water slurry containing dust will be recovered, precipitated and discharged.

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