Single-component water-borne epoxy resin, UHMWPE fiber bulletproof composite material and preparation method thereof

Abstract

The invention discloses single-component water-borne epoxy resin, a UHMWPE fiber bulletproof composite material and a preparation method of the UHMWPE fiber bulletproof composite material. The single-component water-borne epoxy resin is prepared by adopting the following preparation steps: step 1, preparing a polyurethane prepolymer: reacting isocyanate with polyether polyol to generate an isocyanate-terminated polyurethane prepolymer with a certain molecular weight; step 2, preparation of polyurethane modified epoxy resin: carrying out copolymerization on the polyurethane prepolymer obtained in the step 1 and bisphenol A glycidyl ether to obtain a macromolecular polyurethane modified epoxy resin emulsion, and adding an emulsifier for emulsification to obtain a macromolecular epoxy emulsion; and step 3, preparing the single-component water-borne epoxy resin: cross-linking amino resin with the macromolecular epoxy emulsion obtained in the step 2 to obtain the single-component water-borne epoxy resin. The single-component epoxy resin in the scheme has no curing reaction at the temperature of 120 DEG C or below, is stable in storage, meets the requirement that a product has good bending modulus after resin curing, and can be massively used in the bulletproof field of UHMWPE fibers.

Description

Technical Field

[0001] The invention relates to the field of bulletproof materials, and in particular to a single-component waterborne epoxy resin and UHMWPE fiber bulletproof composite material and a preparation method thereof. Background Art

[0002] Existing ultra-high molecular weight polyethylene (UHMWPE) fiber composite materials are widely used in bulletproof equipment such as bulletproof vests, bulletproof plates, and bulletproof helmets because of their extremely high bulletproof performance. The preparation process is mainly to first lay the UHMWPE fibers uniformly in one direction and then soak them in resin in the trough to make a unidirectional cloth. After orthogonal treatment, they are laminated and processed into bulletproof products under high temperature and high pressure by a press.

[0003] Among them, the existing UHMWPE bulletproof materials largely use single-component water-based polyurethane resin as adhesive. Although polyurethane has good low-temperature resistance and processing properties, its high-temperature resistance is poor, especially above 55°C, due to its thermoplastic structure, the performance of the bulletproof material decreases significantly. In addition, the bulletproof material using polyurethane resin has low rigidity, which limits the application scope of bulletproof composite materials in high temperature and scenarios where the product has rigidity requirements.

[0004] At present, there are also related applications using water-based epoxy resin as the main resin in UHMWPE bulletproof composite materials. For example, the patent application with publication number CN109735278A discloses a water-based epoxy adhesive and its application in the bonding of high-performance fiber bulletproof plates. The adhesive includes: an epoxy component and a curing component; the epoxy component includes a water-based epoxy resin emulsion, the curing component includes an amine curing agent and a water-based polyurethane emulsion, the water-based polyurethane emulsion is 10% to 40% of the total mass of the curing component, and the solid content of the water-based polyurethane emulsion is 25% to 50%. The present invention adopts an epoxy system in the form of a water-based epoxy resin emulsion, which has good bonding properties and excellent hardness and rigidity. The patent application with publication number CN114395215A discloses a high-performance PE fiber composite non-woven fabric and its production process. The non-woven fabric is formed by pressing surface-modified PE fiber and a binder. The binder includes an oligomeric epoxy resin and a curing agent with a mass content of 2.8%. The oligomeric epoxy resin is block-copolymerized by bisphenol A and 4,4'-dichlorodiphenyl sulfoxide, and then epoxidized and modified by propylene triglycidyl ether. It has high bonding strength and high chemical crosslinking. The surface-modified PE fiber uses UHMWPE raw silk as a raw material, is subjected to oxidation and chlorination treatment to improve surface activity, and is then grafted with siloxane groups by KH550 to improve the compatibility between the fiber and the binder. After hydrolysis, it is cross-linked with the oligomeric epoxy resin to improve the bonding strength between the binder and the fiber. When the sheet is impacted, the arranged fibers The fiber is not easy to debond and slip, so it has good anti-ballistic performance; the patent application with publication number CN118325289A discloses an epoxy resin composition for bulletproof materials and a preparation method thereof, the epoxy resin composition comprises a first composition, the first composition comprises the following components in parts by weight: 40-80 parts of epoxy resin A, 5-15 parts of epoxy resin B, 1-20 parts of diluent, 0.05-2 parts of coupling agent, the epoxy resin A is selected from at least one of bisphenol epoxy resin and modified bisphenol epoxy resin, the epoxy resin B is selected from 4,4'-diaminodiphenylmethane epoxy resin and dicyclopentadiene phenol epoxy resin, etc., the epoxy resin composition has higher bonding performance, heat resistance and aging resistance, excellent impact toughness and other properties, can improve the bonding performance of ceramic and fiber composite materials in bulletproof plates, and can effectively improve the defense performance of ceramic bulletproof plates.

[0005] However, the above-mentioned UHMWPE bulletproof composite materials all have the following problems: the resins all use a two-component formula, and the two component resins need to be mixed before being put into the trough. The resin will react in the trough, resulting in a curing reaction of the resin during the production of the unidirectional composite material, which is likely to cause a change in the viscosity of the epoxy resin, which has a great impact on the quality stability of the UHMWPE fiber prepreg. In addition, the curing reaction in the trough results in a short window period for production operations, making it difficult to achieve large-scale continuous production. Ultimately, its efficiency, cost and performance stability are lower than those of single-component polyurethane resins, thereby limiting the application of epoxy resins in UHMWPE fiber bulletproof composite materials. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide a one-component waterborne epoxy resin, a UHMWPE fiber bulletproof composite material and a preparation method thereof. The one-component waterborne epoxy resin is stable in storage and can realize the continuous production of the UHMWPE fiber bulletproof composite material.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] A one-component waterborne epoxy resin is prepared by the following preparation steps:

[0009] Step 1, preparation of polyurethane prepolymer: isocyanate reacts with polyether polyol to generate isocyanate-terminated polyurethane prepolymer with a certain molecular weight;

[0010] Step 2, preparation of polyurethane modified epoxy resin: copolymerizing the polyurethane prepolymer obtained in step 1 with bisphenol A glycidyl ether to obtain a macromolecular polyurethane modified epoxy resin emulsion, adding an emulsifier for emulsification to obtain a macromolecular epoxy emulsion;

[0011] Step 3, preparation of one-component waterborne epoxy resin: amino resin is cross-linked with the macromolecular epoxy emulsion obtained in step 2 to obtain a one-component waterborne epoxy resin.

[0012] Preferably, the preparation steps are as follows:

[0013] Step 1, preparation of polyurethane prepolymer: add polyether polyol into a three-necked flask, heat to 50-60°C, then drop isocyanate therein, maintain the temperature and continue the reaction for 4-6 hours after the dropwise addition is completed, to obtain a polyurethane prepolymer;

[0014] Step 2, preparation of polyurethane modified epoxy resin emulsion: add bisphenol A glycidyl ether to the polyurethane prepolymer obtained in step 1, heat to 80-120° C., react for 1-5 hours to obtain a macromolecular polyurethane modified epoxy resin emulsion, then add an emulsifier to the system, stir evenly, add 30%-40% deionized water, emulsify and stir at 50-60° C. for 2-3 hours, and cool to obtain a macromolecular epoxy emulsion;

[0015] Step 3, preparation of one-component waterborne epoxy resin: add amino resin to a three-necked flask, then add an equal amount of deionized water to a beaker, stir evenly, add the macromolecular epoxy emulsion obtained in step 2 to the system, continue stirring for 1-2 hours, and a milky white one-component waterborne epoxy resin can be obtained.

[0016] Preferably, in step 1, the molar ratio of polyether polyol to isocyanate is 1:1.3-1.5.

[0017] Preferably, in step 1, the isocyanate is selected from one or more of HDI, TDI, MDI and HMDI.

[0018] Preferably, in step 1, the polyether polyol is one or more of polyethylene glycol, polypropylene glycol, polytetramethylene glycol and polybutylene glycol.

[0019] Preferably, in step 2, the molecular weight of the polyurethane prepolymer is 2000-4000, and the ratio of bisphenol A glycidyl ether to the polyurethane prepolymer is 1:0.1-3.

[0020] Preferably, in step 2, the emulsifier is a Span series non-ionic emulsifier, which can be one of span-20, span-40, span-65, span-80 and span-85. The amount of the emulsifier added is 1-3% of the macromolecular polyurethane modified epoxy resin emulsion.

[0021] Preferably, in step 3, the ratio of the amino resin to the macromolecular epoxy emulsion is 1:4-8, and the amino resin is one or more of urea-formaldehyde resin, melamine formaldehyde resin, and benzoguanamine resin.

[0022] A UHMWPE fiber bulletproof composite material is made of the following raw materials in parts by weight: 80-85 parts of ultra-high molecular weight polyethylene fibers; 10-15 parts of the above-mentioned single-component waterborne epoxy resin; and 5-10 parts of polyethylene film.

[0023] A method for preparing the UHMWPE fiber bulletproof composite material as described above comprises the following steps:

[0024] Step 1, fiber laying: the ultra-high molecular weight polyethylene fiber bundle on the creel is placed into the laying device for uniform laying in the 0° direction;

[0025] Step 2, gluing: entering the gluing area and applying a single-component water-based epoxy resin on the surface of the wire laying;

[0026] Step 3, film attachment: attaching a polyethylene film to the surface of the laid wire soaked with the single-component waterborne epoxy resin;

[0027] Step 4, baking: put into the oven, the oven temperature is 60-80℃ to dry the moisture;

[0028] Step 5: Roll up after cooling.

[0029] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0030] 1. The one-component waterborne epoxy resin prepared by the present invention is a polyurethane prepolymer terminated with an isocyanate having a certain molecular weight generated by the reaction of isocyanate and polyether polyol, which is then copolymerized with bisphenol A glycidyl ether to obtain a macromolecular polyurethane modified epoxy resin emulsion, and then the macromolecular polyurethane modified epoxy resin emulsion is emulsified by an emulsifier to obtain a macromolecular epoxy emulsion, and then an amino resin cross-linking agent is added to the macromolecular epoxy emulsion to obtain the one-component epoxy resin. The one-component epoxy resin is a waterborne epoxy resin, and the one-component epoxy resin is terminated by capping the curing group in the resin so that the curing reaction does not occur below 120°C, which is beneficial to the moisture drying process, and the storage is stable, which greatly extends the production window of the composite material, and can realize the continuous production of one-component waterborne epoxy resin reinforced UHMWPE fiber bulletproof composite materials; and the one-component epoxy resin has special large molecular weight isocyanate and epoxy groups, which meet the requirements that the product has a good bending modulus after the resin is cured, and can be used in large quantities in the field of UHMWPE fiber bulletproof;

[0031] 2. The one-component waterborne epoxy resin prepared by the present invention has two curing modes, (1) the hydroxyl group and the epoxy group are cured under the catalytic action of the tertiary amine in the amino resin, and (2) the cross-linking curing between the amino resin and the hydroxyl group. The reaction temperature of the epoxy group and the hydroxyl group needs to be above 200°C, and the curing can be carried out at a lower temperature under the catalytic action of the amine; the tertiary amine in the amino resin has a weak alkalinity and a small catalytic effect on the reaction of epoxy and hydroxyl groups. After the amino resin and the hydroxyl groups are partially cross-linked, the chemical epoxy of the tertiary amine in the amino resin changes, and the catalytic effect becomes stronger, thereby playing a better catalytic role in the curing reaction of epoxy and hydroxyl groups; at the same time, the required temperature for the cross-linking of the amino resin and the hydroxyl group is about 130°C, so the design curing temperature of the one-component waterborne epoxy resin is about 130°C, and it can be stored at room temperature, has high body strength, and has a high performance retention rate after aging;

[0032] 3. The UHMWPE fiber bulletproof composite material prepared by the present invention has a good bending modulus, which can reach 10046Mpa. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a graph showing the change in bonding strength of the single-component waterborne epoxy resin over time in Example 1 (60°C). DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] A one-component waterborne epoxy resin, the preparation steps are as follows:

[0037] Step 1, preparation of polyurethane prepolymer: 100 g of polypropylene glycol is added to a three-necked flask, the temperature is raised to 50° C., 20 g of hexamethylene diisocyanate (HDI) is then added dropwise thereto, and after the addition is completed, the reaction is continued at 50° C. for 4 hours to obtain a polyurethane prepolymer, the molecular weight of the polyurethane prepolymer is 2000-4000;

[0038] Step 2, preparation of polyurethane modified epoxy resin emulsion: add 150g of bisphenol A glycidyl ether to the polyurethane prepolymer obtained in step 1, heat to 90°C, react for 3 hours to obtain a macromolecular polyurethane modified epoxy resin emulsion, then add 4g of span-40 to the system, stir evenly, add 35g of deionized water, emulsify and stir at 50°C for 2 hours, and cool to obtain a macromolecular epoxy emulsion;

[0039] Step 3, preparation of one-component waterborne epoxy resin: add 50 grams of urea-formaldehyde resin to a three-necked flask, then add 50 grams of water, stir evenly, add 350 grams of the macromolecular epoxy emulsion obtained in step 2 to the system, continue stirring for 1 hour to obtain a milky white one-component waterborne epoxy resin.

[0040] Embodiment 2:

[0041] A one-component waterborne epoxy resin, the preparation steps are as follows:

[0042] Step 1, preparation of polyurethane prepolymer: 100 g of polyethylene glycol is added to a three-necked flask, the temperature is raised to 50° C., 20 g of hexamethylene diisocyanate (HDI) is then added dropwise thereto, and after the addition is completed, the reaction is continued at 50° C. for 4 hours to obtain a polyurethane prepolymer, the molecular weight of the polyurethane prepolymer is 2000-4000;

[0043] Step 2, preparation of polyurethane modified epoxy resin emulsion: add 180g of bisphenol A glycidyl ether to the polyurethane prepolymer obtained in step 1, heat to 90°C, react for 3 hours to obtain a macromolecular polyurethane modified epoxy resin emulsion, then add 4g of span-65 to the system, stir evenly, add 40g of deionized water, emulsify and stir at 50°C for 2 hours, and cool to obtain a macromolecular epoxy emulsion;

[0044] Step 3, preparation of one-component waterborne epoxy resin: add 50 g of benzoguanamine resin to a three-necked flask, then add 50 g of water, stir evenly, add 350 g of the macromolecular epoxy emulsion obtained in step 2 to the system, continue stirring for 1 hour to obtain a milky white one-component waterborne epoxy resin.

[0045] Embodiment 3:

[0046] A one-component waterborne epoxy resin, the preparation steps are as follows:

[0047] Step 1, preparation of polyurethane prepolymer: 100 g of polybutylene glycol is added to a three-necked flask, the temperature is raised to 50° C., 20 g of diphenylmethane diisocyanate (MDI) is then added dropwise thereto, and after the addition is completed, the reaction is continued at 50° C. for 4 hours to obtain a polyurethane prepolymer, the molecular weight of the polyurethane prepolymer is 2000-4000;

[0048] Step 2, preparation of polyurethane modified epoxy resin emulsion: add 160g of bisphenol A glycidyl ether to the polyurethane prepolymer obtained in step 1, heat to 90°C, react for 3 hours to obtain a macromolecular polyurethane modified epoxy resin emulsion, then add 3g of span-65 to the system, stir evenly, add 40g of deionized water, emulsify and stir at 50°C for 2 hours, and cool to obtain a macromolecular epoxy emulsion;

[0049] Step 3, preparation of one-component waterborne epoxy resin: add 50 grams of melamine formaldehyde resin to a three-necked flask, then add 50 grams of water, stir evenly, add 350 grams of the macromolecular epoxy emulsion obtained in step 2 to the system, continue stirring for 1 hour to obtain a milky white one-component waterborne epoxy resin.

[0050] Embodiment 4:

[0051] A UHMWPE fiber bulletproof composite material is made from the following raw materials in parts by weight: 84 parts of ultra-high molecular weight polyethylene fibers; 10 parts of the single-component waterborne epoxy resin described in Example 1; and 6 parts of polyethylene films.

[0052] A method for preparing a UHMWPE fiber bulletproof composite material comprises the following steps:

[0053] Step 1, fiber laying: the ultra-high molecular weight polyethylene fiber bundle on the creel is placed into the laying device for uniform laying in the 0° direction;

[0054] Step 2, gluing: entering the gluing area and applying a single-component water-based epoxy resin on the surface of the wire laying;

[0055] Step 3, film attachment: attaching a polyethylene film to the surface of the laid wire soaked with the single-component waterborne epoxy resin;

[0056] Step 4, baking: put into the oven, the oven temperature is 70℃, dry the moisture;

[0057] Step 5: Roll up after cooling.

[0058] Comparative Example 1:

[0059] The difference from Example 4 is that the one-component waterborne epoxy resin in step 2 of Example 4 is replaced by a commercially available polyurethane resin, and the rest is exactly the same.

[0060] Performance testing of single-component waterborne epoxy resin samples:

[0061] Viscosity: The viscosity is tested according to GBT1723-1993-Determination of Coating Viscosity.

[0062] Bond strength: GB / T 7124-2008 Shear Strength is used for bond strength testing.

[0063] The above viscosity and bonding strength test methods were used to test the performance of the single-component waterborne epoxy resin samples in Examples 1 to 3. The test results are shown in Table 1 below:

[0064] Table 1: Performance test table of the single-component waterborne epoxy resin samples in Examples 1 to 3

[0065] Group Viscosity (s, Yantian Cup 3#) Bonding strength(Mpa) Example 1 70 22.5 Example 2 60 17 Example 3 55 18

[0066] After testing, the single-component water-based epoxy resin sample provided in Example 1 has a bonding strength of 22.5 MPa when it is just produced. After being placed at room temperature for 12 months, the bonding strength is 21 MPa. It has a high performance retention rate and high storage stability, and can be stored stably for a long time at room temperature.

[0067] The one-component waterborne epoxy resin sample in Example 1 was subjected to an aging test. The experimental method was as follows: 100 grams of the one-component waterborne epoxy resin sample in Example 1 was placed in a 200 mL black PP bottle, which was placed in a 60°C aging oven. The samples were taken at different times to test the bonding strength. The test results are shown in Figure 2. Figure 1 ,Depend on Figure 1 It can be seen that the single-component water-based epoxy resin sample provided in Example 1 has high body strength and high performance retention rate after heat aging, and can be stably stored for a long period of time.

[0068] Performance testing of resin reinforced UHMWPE fiber bulletproof composite materials.

[0069] Ballistic Limit V50: Resin-reinforced UHMWPE fiber bulletproof composite material is pressed into a surface density of 5.5kg / m 2 , use "GA / T 950-2019 V50 Test Method for Ballistic Materials and Products" to conduct ballistic limit V50 testing;

[0070] Flexural modulus: The flexural modulus is tested according to ISO 14125 Flexural properties of fiber reinforced plastic composites.

[0071] The above-mentioned ballistic limit V50 and bending modulus detection methods were used to perform performance tests on the resin reinforced UHMWPE fiber bulletproof composite material samples in Example 4 and Comparative Example 1. The test results are shown in Table 2 below:

[0072] Table 2: Performance test results of the resin-reinforced UHMWPE fiber bulletproof composite material samples in Example 4 and Comparative Example 1:

[0073]

[0074] As shown in Table 1, in the V50 room temperature test, the V50 value of the resin-reinforced UHMWPE fiber bullet-proof composite material sample provided in Example 4 is 694 m / s, which is slightly higher than the resin-reinforced UHMWPE fiber bullet-proof composite material sample provided in Comparative Example 1. The bending modulus of the resin-reinforced UHMWPE fiber bullet-proof composite material sample provided in Example 4 is 36% higher than that of the resin-reinforced UHMWPE fiber bullet-proof composite material sample provided in Comparative Example 1. Moreover, by comparing the resin-reinforced UHMWPE fiber bullet-proof composite material sample prepared after aging at 70° C. for 4 hours with the polyurethane resin in Comparative Example 1, it can be seen that the V50 value of the resin-reinforced UHMWPE fiber bullet-proof composite material sample provided in Example 4 is about 30 m / s higher than that of the resin-reinforced UHMWPE fiber bullet-proof composite material sample provided in Comparative Example 1, which fully demonstrates that the use of the present single-component waterborne epoxy resin can stably produce resin-reinforced UHMWPE fiber bullet-proof composite materials with excellent high temperature performance, and has better high temperature performance than conventional polyurethane resin systems.

[0075] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Ordinary technicians in the field can change, modify, replace, modify, delete some features, add features or re-combine features to form a technical solution in the above embodiments without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the innovative principles of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A one-component waterborne epoxy resin, characterized in that: The preparation steps are as follows: Step 1, preparation of polyurethane prepolymer: isocyanate reacts with polyether polyol to generate isocyanate-terminated polyurethane prepolymer with a certain molecular weight; Step 2, preparation of polyurethane modified epoxy resin: copolymerizing the polyurethane prepolymer obtained in step 1 with bisphenol A glycidyl ether to obtain a macromolecular polyurethane modified epoxy resin emulsion, adding an emulsifier for emulsification to obtain a macromolecular epoxy emulsion; Step 3, preparation of one-component waterborne epoxy resin: amino resin is cross-linked with the macromolecular epoxy emulsion obtained in step 2 to obtain a one-component waterborne epoxy resin.

2. A one-component waterborne epoxy resin according to claim 1, characterized in that: The preparation steps are as follows: Step 1, preparation of polyurethane prepolymer: add polyether polyol into a three-necked flask, heat to 50-60°C, then drop isocyanate therein, maintain the temperature and continue the reaction for 4-6 hours after the dropwise addition is completed, to obtain a polyurethane prepolymer; Step 2, preparation of polyurethane modified epoxy resin emulsion: add bisphenol A glycidyl ether to the polyurethane prepolymer obtained in step 1, heat to 80-120° C., react for 1-5 hours to obtain a macromolecular polyurethane modified epoxy resin emulsion, then add an emulsifier to the system, stir evenly, add 30%-40% deionized water, emulsify and stir at 50-60° C. for 2-3 hours, and cool to obtain a macromolecular epoxy emulsion; Step 3, preparation of one-component waterborne epoxy resin: add amino resin to a three-necked flask, then add an equal amount of deionized water, stir evenly, add the macromolecular epoxy emulsion obtained in step 2 to the system, continue stirring for 1-2 hours, and a milky white one-component waterborne epoxy resin can be obtained.

3. A one-component waterborne epoxy resin according to claim 2, characterized in that: In step 1, the molar ratio of polyether polyol to isocyanate is 1:1.3-1.

5.

4. A one-component waterborne epoxy resin according to claim 2, characterized in that: In step 1, the isocyanate is selected from one or more of HDI, TDI, MDI and HMDI.

5. A one-component waterborne epoxy resin according to claim 2, characterized in that: In step 1, the polyether polyol is one or more of polyethylene glycol, polypropylene glycol, polytetramethylene glycol and polybutylene glycol.

6. A one-component waterborne epoxy resin according to claim 2, characterized in that: In step 2, the molecular weight of the polyurethane prepolymer is 2000-4000, and the molar ratio of bisphenol A glycidyl ether to the polyurethane prepolymer is 1:0.1-3.

7. A one-component waterborne epoxy resin according to claim 2, characterized in that: In step 2, the emulsifier is a Span series non-ionic emulsifier, and one of span-20, span-40, span-65, span-80 and span-85 can be selected. The amount of the emulsifier added is 1-3% of the macromolecular polyurethane modified epoxy resin emulsion.

8. A one-component waterborne epoxy resin according to claim 2, characterized in that: In step 3, the ratio of the amino resin to the macromolecular epoxy emulsion is 1:4-8, and the amino resin is one or more of urea-formaldehyde resin, melamine formaldehyde resin, and benzoguanamine resin.

9. A UHMWPE fiber bulletproof composite material, characterized in that: The invention is made of the following raw materials in parts by weight: 80-85 parts of ultra-high molecular weight polyethylene fiber; 10-15 parts of the single-component waterborne epoxy resin as claimed in any one of claims 1 to 8; and 5-10 parts of polyethylene film.

10. A method for preparing the UHMWPE fiber bulletproof composite material according to claim 9, characterized in that: The steps include: Step 1, fiber laying: the ultra-high molecular weight polyethylene fiber bundle on the creel is placed into the laying device for uniform laying; Step 2, gluing: entering the gluing area and applying a single-component water-based epoxy resin on the surface of the wire laying; Step 3, film attachment: attaching a polyethylene film to the surface of the laid wire soaked with the single-component waterborne epoxy resin; Step 4, baking: put into the oven, the oven temperature is 60-80℃, dry the moisture; Step 5: Roll up after cooling.

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