A polymer-coated mixed woven fabric and its preparation method

Abstract

The present invention provides a polymer-coated hybrid woven fabric and a preparation method thereof, belonging to the technical field of coated fabrics. By optimizing the surface structure of the fabric, the fiber arrangement, and the differential setting of the yarn twist, the bonding strength between the fabric and the polymer coating is improved, solving the problem of insufficient bonding strength between the fibers with an inert surface and the polymer surface layer. Through the differential design of the warp and weft densities, the mesh size of the interlacing points on the fabric surface is increased, improving the penetration and coating effects of the sizing agent. At the same time, it is specified that the proportion of reactive surface fibers in the weft direction of the hybrid woven fabric is greater than that in the warp direction. During the processes of dipping, coating, drying, and compounding, the fabric shrinkage is reduced, and while maintaining high tensile strength, tear resistance, and puncture resistance, good flexibility and processability are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of coated fabrics, and particularly to a polymer-coated mixed woven fabric and a preparation method thereof. Background Art

[0002] At present, polymer-coated fabrics made of fibers with reactive surfaces such as polyester and nylon are widely used in the fields of industry and protective materials due to their low cost and strong durability. However, their mechanical properties such as tensile strength, tear strength, and puncture resistance are poor, making it difficult to meet high-performance requirements. Fibers with inert surfaces such as ultra-high molecular weight polyethylene (UHMWPE) have gradually become preferred materials for composite materials due to their excellent mechanical properties, but the adhesion strength between them and conventional TPU or PVC polymer coatings is insufficient, limiting their application in the field of coated fabrics. The invention patent CN201610004369.9 discloses a new type of ultra-high molecular weight polyethylene woven fire hose and its manufacturing method, in which a tubular fabric is prepared by knitting ultra-high molecular weight polyethylene filament warp and ultra-high molecular weight polyethylene pure-spun staple fiber weft, and a modified polyurethane is coated on its surface, but the key index of coating adhesion strength is not mentioned. In addition, the existing technology improves the interfacial bonding performance between fibers with inert surfaces and the polymer matrix through methods such as plasma treatment and chemical etching, but the equipment cost is high and the processing efficiency is low. Therefore, it has become an urgent problem to develop a polymer-coated fabric with higher coating adhesion strength and better comprehensive mechanical properties through process improvement. Summary of the Invention

[0003] The purpose of the present invention is to provide a polymer-coated mixed woven fabric and a preparation method thereof. The prepared polymer-coated mixed woven fabric has higher coating adhesion strength, excellent comprehensive mechanical properties, and a simple preparation process.

[0004] To achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0005] The present invention provides a preparation method of a polymer-coated mixed woven fabric, comprising the following steps:

[0006] Mixing and weaving a filament yarn with an inert surface fiber and a filament yarn with a reactive surface fiber to obtain a mixed woven fabric;

[0007] Corona-treating the mixed woven fabric to obtain a treated mixed woven fabric;

[0008] After dip-coating the treated mixed woven fabric, standing for defoaming to obtain a dip-coated fabric;

[0009] After coating the dip-coated fabric, laminating and compounding it with a polymer matrix to obtain a polymer-coated mixed woven fabric;

[0010] The inert surface fibers in the inert surface fiber filament yarn include one or more of aramid fiber, ultra-high molecular weight polyethylene fiber, carbon fiber, polybenzimidazole fiber, polyimide fiber, polyether ether ketone fiber, and polyhydrazide fiber;

[0011] The reactive surface fibers in the reactive surface fiber filament yarn include one or more of polyester fiber and polyamide fiber;

[0012] The conditions for the mixed weaving include: the warp density is 15 - 30 threads per inch; the weft density is 15 - 30 threads per inch; the ratio of the number of warp arrangements of the inert surface fiber filament yarn to that of the reactive surface fiber filament yarn is 1 - 2:1; the ratio of the number of weft arrangements of the inert surface fiber filament yarn to that of the reactive surface fiber filament yarn is 1:1 - 2; the twist of the inert surface fiber filament yarn is 50 - 100 twists per meter; the twist of the reactive surface fiber filament yarn is 0 - 10 twists per meter.

[0013] Preferably, the fineness of the inert surface fiber filament yarn is 500 - 1500 D; the fineness of the reactive surface fiber filament yarn is 1000 - 2000 D.

[0014] Preferably, the mixed weaving method is plain weave or twill weave.

[0015] Preferably, the conditions for the corona treatment include: the power is 50 - 150 W·min / m 2 , the treatment speed is 3 - 6 m / min, and the electrode voltage is 10 - 20 kV.

[0016] Preferably, the conditions for the dipping treatment include: the viscosity of the sizing solution is 150 - 300 mPa·s, the coating amount of the sizing solution is 30 - 50 g / m 2 ; the drying temperature after the dipping treatment is 135 - 155 °C.

[0017] Preferably, the standing time for defoaming is 40 - 60 min.

[0018] Preferably, the conditions for the sizing treatment include: the viscosity of the sizing solution scraped is 15000 - 25000 mPa·s; the fabric is scraped on each side by the method of two passes of scraping. The sizing amount of the first pass is 45 - 55 g / m 2 , and the sizing amount of the second pass is 25 - 35 g / m 2 ; the drying temperature after the sizing treatment is 135 - 155 °C.

[0019] Preferably, the sizing solutions used for the dipping treatment and the sizing treatment are independently a mixture of a polyurethane resin adhesive and a curing agent.

[0020] Preferably, the polymer matrix includes TPU or PVC.

[0021] The present invention provides a polymer-coated mixed woven fabric prepared by the preparation method described in the above technical solution.

[0022] The present invention provides a method for preparing a polymer-coated mixed woven fabric. By optimizing the surface structure of the fabric, the fiber arrangement, and the differential setting of the yarn twist, the bonding strength between the fabric and the polymer coating is improved, and the problem of insufficient bonding strength between the fiber with an inert surface and the surface layer of the polymer matrix (TPU or PVC) is solved. Through the differential design of the warp and weft densities, the pore size of the intersection points on the fabric surface is increased, and the penetration and coating effects of the sizing agent are improved. Through the differential design of the yarn fineness and twist of the fiber with an inert surface and the fiber with a reactive surface, the proportion of the area of the fiber with a reactive surface on the fabric surface is increased, and the advantages of the coating bonding strength of the fiber with a reactive surface and the mechanical properties of the fiber with an inert surface are exerted. At the same time, it is specified that the proportion of the fiber with a reactive surface in the weft direction of the mixed woven fabric is greater than the proportion of the fiber with a reactive surface in the warp direction. By reducing the proportion of the fiber with an inert surface in the weft yarn, the fabric shrinkage is reduced during the processes of dipping, coating, drying, and lamination, and the influence of the shrinkage of the fiber with an inert surface at high temperature on the fabric width is reduced.

[0023] In addition, the present invention adds fibers with an inert surface to the fabric, achieving good flexibility and processability while maintaining high tensile, tear, and puncture resistance. Conventional polymer-coated fabrics usually use a fabric with reactive surface fibers as the intermediate layer, but the fabric has poor tensile, tear, and puncture resistance. The negative effect brought by the addition of fibers with an inert surface is the decrease in the coating bonding strength because the surface of the fiber with an inert surface is smooth and it is difficult to form a firm interfacial bond with the sizing agent. Therefore, in the present invention, by means of mixed weaving, the fabric contains both fibers with a reactive surface and fibers with an inert surface, and the exposed proportion of the fiber with a reactive surface on the fabric surface is increased, while the exposed proportion of the fiber with an inert surface on the fabric surface is reduced, so as to minimize the reduction in the coating bonding strength caused by the presence of the fiber with an inert surface.

[0024] The present invention improves the coating bonding strength of the polymer-coated mixed woven fabric through fabric structure design and surface treatment process optimization. The preparation method is simple and suitable for large-scale industrial production.

[0025] The present invention optimizes the surface treatment process by combining multiple methods such as corona treatment, dipping, and coating, achieving better coating adhesion strength and increasing the interfacial bonding between the fabric and the glue solution from multiple aspects. Among them, corona treatment introduces polar functional groups on the fabric surface, especially on the surface of fibers with an inert surface, through high-voltage discharge, increasing the surface energy and enabling the coating material to spread and adhere better. Dipping treatment uses a glue solution with a lower viscosity to penetrate deep into the fabric. After drying, a primer coating layer is formed inside and on the surface of the filaments in the fabric. Using a glue solution with a lower viscosity for dipping can reduce the generation of bubbles due to the volatilization of organic solvents inside the fabric during the drying process, thereby affecting the coating adhesion strength. Coating treatment uses a glue solution with a higher viscosity to coat the surface of the dipped fabric, forming a glue layer to keep the fabric with a high sizing amount, facilitating the calendaring composite with subsequent TPU. Detailed implementation mode

[0026] In the present invention, unless otherwise specified, the raw materials or reagents used are well-known commercially available products in the art.

[0027] The present invention provides a method for preparing a polymer-coated mixed woven fabric, comprising the following steps:

[0028] Mix and weave a filament yarn of fibers with an inert surface and a filament yarn of fibers with a reactive surface to obtain a mixed woven fabric;

[0029] Perform corona treatment on the mixed woven fabric to obtain a treated mixed woven fabric;

[0030] After subjecting the treated mixed woven fabric to dipping treatment, let it stand for defoaming to obtain a dipped fabric;

[0031] After subjecting the dipped fabric to coating treatment, perform calendaring composite with a polymer matrix to obtain a polymer-coated mixed woven fabric;

[0032] The fibers with an inert surface in the filament yarn of fibers with an inert surface include one or more of aramid fiber, ultra-high molecular weight polyethylene fiber, carbon fiber, polybenzimidazole fiber, polyimide fiber, polyether ether ketone fiber, and polyhydrazide fiber;

[0033] The fibers with a reactive surface in the filament yarn of fibers with a reactive surface include one or more of polyester and nylon fibers;

[0034] The conditions for the mixed weaving include: the warp density is 15 - 30 threads per inch; the weft density is 15 - 30 threads per inch; the ratio of the number of warp - arranged inert surface fiber filament yarns to the number of warp - arranged reactive surface fiber filament yarns is 1 - 2:1; the ratio of the number of weft - arranged inert surface fiber filament yarns to the number of weft - arranged reactive surface fiber filament yarns is 1:1 - 2; the twist of the inert surface fiber filament yarn is 50 - 100 twists per meter; the twist of the reactive surface fiber filament yarn is 0 - 10 twists per meter.

[0035] In the present invention, an inert surface fiber filament yarn and a reactive surface fiber filament yarn are mixed - woven to obtain a mixed - woven fabric.

[0036] In the present invention, the fineness of the inert surface fiber filament yarn is preferably 500 - 1500 D; the fineness of the reactive surface fiber filament yarn is preferably 1000 - 2000 D, more preferably 1500 D.

[0037] In the present invention, the preferred mixed - weaving method is plain weave or twill weave.

[0038] In the present invention, the conditions for the mixed weaving include: the warp density is 15 - 30 threads per inch, more preferably 18 - 22 threads per inch, and further preferably 20 threads per inch; the weft density is 15 - 30 threads per inch, more preferably 16 - 18 threads per inch; the ratio of the number of warp - arranged inert surface fiber filament yarns to the number of warp - arranged reactive surface fiber filament yarns is 1 - 2:1, more preferably 1:1; the ratio of the number of weft - arranged inert surface fiber filament yarns to the number of weft - arranged reactive surface fiber filament yarns is 1:1 - 2, more preferably 1:1; the twist of the inert surface fiber filament yarn is 50 - 100 twists per meter, more preferably 50 - 80 twists per meter; the twist of the reactive surface fiber filament yarn is 0 - 10 twists per meter, more preferably 0 - 5 twists per meter. The present invention has no special limitation on the arrangement method of the reactive surface fiber filament yarn and the inert surface fiber yarn in the warp and weft, and they can be arranged in a manner well - known in the art. In the embodiments of the present invention, specifically, they are arranged alternately in sequence, that is, the inert surface fiber and the reactive surface fiber are arranged adjacent to each other alternately. The inert surface fiber provides high mechanical properties, and the reactive surface fiber provides high interfacial bonding properties.

[0039] After obtaining the mixed - woven fabric, the present invention corona - treats the mixed - woven fabric to obtain a treated mixed - woven fabric.

[0040] In the present invention, the conditions for the corona treatment preferably include: the power is 50 - 150 W·min / m 2 , more preferably 80 - 100 min / m2 ; The processing speed is 3 - 6 m / min, more preferably 5 m / min, and the electrode voltage is 10 - 20 kV, more preferably 10 - 15 kV. The present invention improves the adhesion performance of the coating through corona treatment.

[0041] After obtaining the treated mixed woven fabric, the present invention impregnates the treated mixed woven fabric, then stands it still to defoam, and obtains the impregnated fabric.

[0042] In the present invention, the conditions for the impregnation treatment preferably include: the viscosity of the sizing solution is 150 - 300 mPa·s, more preferably 200 mPa·s, and the coating amount of the sizing solution is 30 - 50 g / m 2 , more preferably 30 - 40 g / m 2 .

[0043] In the present invention, after the impregnation treatment, standing still to defoam and drying are carried out in sequence; the time for standing still to defoam is preferably 40 - 60 min, more preferably 40 - 50 min; the drying temperature after the impregnation treatment is preferably 135 - 155 °C, more preferably 140 °C.

[0044] After obtaining the impregnated fabric, the present invention applies a coating treatment to the impregnated fabric and then performs a casting composite with a polymer matrix to obtain a polymer-coated mixed woven fabric.

[0045] In the present invention, the conditions for the coating treatment preferably include: the viscosity of the blade-coated sizing solution is 15000 - 25000 mPa·s, more preferably 15000 - 20000 mPa·s; the fabric is blade-coated on each side in a way of two passes of blade coating. The sizing amount of the first pass of blade coating is 45 - 55 g / m 2 , more preferably 45 - 50 g / m 2 , and the sizing amount of the second pass of blade coating is 25 - 35 g / m 2 , more preferably 25 - 30 g / m 2 ; the drying temperature after the coating treatment is 135 - 155 °C, more preferably 140 °C.

[0046] In the present invention, the sizing solutions used for the impregnation treatment and the coating treatment are independently preferably a mixture of a polyurethane resin adhesive and a curing agent.

[0047] In terms of mass percentage, the components of the polyurethane resin adhesive include: 60 - 70% of polyurethane prepolymer, 25 - 35% of solvent, and 2 - 5% of tackifier; the content of the polyurethane prepolymer is more preferably 60 - 65%, the content of the solvent is more preferably 30 - 35%, and the content of the tackifier is more preferably 3 - 5%.

[0048] The polyurethane prepolymer is preferably a PTMG prepolymer and / or a PPG prepolymer; the solvent is preferably one or more of toluene, methyl ethyl ketone, and ethyl acetate; the tackifier is preferably one or more of polyester polyol and low molecular weight polyurethane resin. The present invention does not have special limitations on the specific models and sources of the polyester polyol and low molecular weight polyurethane resin, and commercially available products well-known in the art can be used.

[0049] Based on 100% by mass of the polyurethane resin adhesive, the curing agent preferably includes 3-10% of isocyanate curing agent and 0.05-0.1% of catalyst; the isocyanate curing agent is more preferably 3-8%, and the catalyst is more preferably 0.08-0.1%; the isocyanate curing agent is preferably one or more of HDI trimer and IPDI prepolymer; the catalyst is preferably one or more of dibutyltin dilaurate and triethylamine.

[0050] After the coating treatment, the fabric is dried, and the present invention preferably laminates the obtained fabric with a polymer matrix.

[0051] In the present invention, the polymer matrix preferably includes TPU (thermoplastic polyurethane elastomer) or PVC. The present invention does not have special limitations on the specific process of the lamination, and the conventional process well-known in the art can be used for lamination, specifically laminating the mixed woven fabric after coating and drying with thermoplastic polyurethane.

[0052] The present invention provides a polymer-coated mixed woven fabric prepared by the preparation method described in the above technical solution.

[0053] The technical solutions provided by the present invention will be described in detail below with reference to the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0054] In the following examples, PTMG prepolymer: polytetrahydrofuran glycol (PTMG) prepolymer, BASF PTMG-2000;

[0055] Methyl ethyl ketone solvent: methyl ethyl ketone;

[0056] Low molecular weight polyurethane resin tackifier: Bayer Desmocoll 540;

[0057] Isocyanate curing agent: Bayer Desmodur N75;

[0058] Catalyst: triethylenediamine (DABCO). Example 1

[0059] 1) The ultra-high molecular weight polyethylene filament yarn and the polyester filament yarn are mixed woven in a plain weave, and the ultra-high molecular weight polyethylene filament yarn and the polyester filament yarn are arranged alternately to prepare a mixed woven fabric;

[0060] The fineness of the ultra-high molecular weight polyethylene filament yarn is 1500D; the fineness of the polyester filament yarn is 1500D; the warp density is 20 threads / inch; the weft density is 18 threads / inch; the ratio of the number of warp arrangements of the ultra-high molecular weight polyethylene filament yarn to the polyester filament yarn is 1:1; the ratio of the number of weft arrangements of the ultra-high molecular weight polyethylene filament yarn to the polyester filament yarn is 1:1; the twist of the ultra-high molecular weight polyethylene is 50 turns / m; the twist of the polyester is 0 turns / m.

[0061] 2) Corona treatment is carried out on the surface of the mixed woven fabric to obtain the treated mixed woven fabric:

[0062] Corona treatment power: 100 W·min / m 2 ; treatment speed 5 m / min; electrode voltage 10 kV.

[0063] 3) Immerse the treated mixed woven fabric in glue:

[0064] The composition of the glue solution is: PTMG prepolymer: methyl ethyl ketone solvent: low molecular weight polyurethane resin tackifier: isocyanate curing agent: catalyst mass ratio = 60:35:5:8:0.1;

[0065] Viscosity of the glue solution: 200 mPa·s; coating amount of the glue solution: 30 g / m²; drying temperature 140 °C. After dip coating is completed, stand for 40 min to defoam to obtain the impregnated fabric.

[0066] 4) Apply glue to the impregnated fabric:

[0067] The composition of the doctor blade glue solution is: PTMG prepolymer: methyl ethyl ketone solvent: low molecular weight polyurethane resin tackifier: isocyanate curing agent: catalyst = 70:25:5:8:0.1, and the viscosity of the doctor blade glue solution is 15000 mPa·s; each side of the fabric is doctor blade coated in 2 passes. The amount of glue applied in the first pass is 45 g / m 2 ; the amount of glue applied in the second pass is 25 g / m 2 ; drying temperature 140 °C.

[0068] 5) Casting compounding:

[0069] Heat and cast the thermoplastic polyurethane elastomer (TPU) masterbatch into a film, lay it online on the fabric coated with the base glue, and then complete the compounding by pressing with a pressure roller to obtain the polymer-coated mixed woven fabric.

[0070] Comparative Example 1

[0071] The difference from Example 1 is that: the impregnation treatment is not carried out, and only the mixed woven fabric in step 2) is coated with glue and then casting compounded.

[0072] Comparative Example 2

[0073] The difference from Example 1 is that one pass of knife coating is used for knife coating.

[0074] Comparative Example 3

[0075] The difference from Example 1 is that the drying temperature after dipping and knife coating is set to 160 °C.

[0076] Comparative Example 4

[0077] The difference from Example 1 is that the warp density and weft density are both set to 22 threads per inch.

[0078] Comparative Example 5

[0079] The difference from Example 1 is that neither the warp nor the weft is twisted.

[0080] Comparative Example 6

[0081] The difference from Example 1 is that in step 1), the fabric is woven with pure polyester, the fineness of the polyester filament yarn is 1500 D, the warp density is 20 threads per inch, the weft density is 18 threads per inch, the polyester twist is 0 turns per meter, and no mixed weaving is performed.

[0082] Comparative Example 7

[0083] The difference from Example 1 is that in step 1), the fabric is woven with pure ultra-high molecular weight polyethylene, the fineness of the ultra-high molecular weight polyethylene filament yarn is 1500 D, the warp density is 20 threads per inch, the weft density is 18 threads per inch, the ultra-high molecular weight polyethylene twist is 50 turns per meter, and no mixed weaving is performed.

[0084] Performance Test

[0085] Using HG / T 3052-2008 Determination of Coating Adhesion Strength of Rubber or Plastic Coated Fabrics (peeling strength generated by peeling TPU from the mixed woven fabric after coating), HG / T 2580-2022 Determination of Tensile Strength and Elongation at Break of Rubber or Plastic Coated Fabrics, HG / T 2581.1-2009 Determination of Tear Resistance of Rubber or Plastic Coated Fabrics Part 1 - Constant Rate Tear Method, GB / T 31064-2014 Test Method for Anti-Puncture of Rubber or Plastic Coated Fabrics and other methods, the performance of the mixed woven fabrics prepared in Example 1 and Comparative Examples 1-7 was detected, and the results are shown in Table 1.

[0086] Table 1 Detection Results of Mixed Woven Fabrics in Example 1 and Comparative Examples 1-7

[0087] Number Peeling Strength (N / 25mm) Tensile Strength in Warp Direction (N / 50mm) Tensile Strength in Weft Direction (N / 50mm) Tear Strength in Warp Direction (N / 50mm) Tear Strength in Weft Direction (N / 50mm) Puncture Resistance (N) Example 1 74 10161 7296 1929 1797 1149 Comparative Example 1 56 10098 7183 1901 1731 1109 Comparative Example 2 52 10045 7154 1867 1728 1097 Comparative Example 3 65 7540 5479 1287 1355 1124 Comparative Example 4 54 10743 10637 1988 1980 1551 Comparative Example 5 50 10104 7266 1919 1765 1156 Comparative Example 6 98 4203 3834 729 597 687 Comparative Example 7 35 11460 10364 1845 1833 1979

[0088] As can be seen from Table 1, the polymer-coated hybrid woven fabric obtained in Example 1 has better comprehensive properties. The difference between Comparative Example 1 and Example 1 is that no sizing treatment was carried out, and only high-viscosity glue was used for scraping coating in the gluing process. It is difficult for the glue to penetrate into the yarn interior, which is not conducive to improving the coating adhesion strength. The difference between Comparative Example 2 and Example 1 is that 1-pass scraping coating was used. Since the coating thickness of the glue in a single scraping is relatively large, the volatile solvents in the glue are difficult to be fully removed, resulting in many bubbles in the glue layer, which has a negative impact on the coating adhesion strength. The difference between Comparative Example 3 and Example 1 is that the drying temperature during the sizing and scraping processes was set at 160 °C. Since the hybrid woven fabric contains ultra-high molecular weight polyethylene, the excessively high processing temperature exceeds its glass transition temperature, resulting in fiber thermal damage, a decrease in mechanical properties, and serious shrinkage. The difference between Comparative Example 4 and Example 1 is that the warp and weft densities were both set at 22 threads per inch. The warp and weft yarn densities were set too high, resulting in the fabric being too tight, which is not conducive to the infiltration of the glue. The difference between Comparative Example 5 and Example 1 is that neither the warp nor the weft was twisted. Without twisting the ultra-high molecular weight polyethylene, its proportion on the fabric surface is equivalent to that of polyester, and the advantage of the coating adhesion strength of polyester is difficult to be fully exerted, and the coating adhesion strength is still insufficient. The difference between Comparative Example 6 and Example 1 is that the fabric was woven with pure polyester. Although the coating adhesion strength is very high, other mechanical properties are seriously insufficient. The difference between Comparative Example 7 and Example 1 is that the fabric was woven with pure ultra-high molecular weight polyethylene. Although the tensile, tear, and puncture resistance properties are relatively good, the coating adhesion strength is seriously insufficient.

[0089] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A method for preparing a polymer-coated mixed woven fabric, characterized in that: The following steps are involved: Mixing and weaving fiber filament yarns with inert surfaces and fiber filament yarns with reactive surfaces to obtain a mixed knitted fabric; The mixed braided fabric is subjected to corona treatment to obtain a treated mixed braided fabric; The treated mixed woven fabric is dipped in glue, and then allowed to stand for defoaming to obtain a dipped fabric; After the dipped fabric is treated with glue, it is cast and compounded with a polymer matrix to obtain a polymer-coated mixed woven fabric; The fiber with inert surface in the fiber filament yarn with inert surface includes one or more of aramid fiber, ultra-high molecular weight polyethylene fiber, carbon fiber, polybenzimidazole fiber, polyimide fiber, polyetheretherketone fiber and polyhydrazide fiber; The reactive surface fibers in the reactive surface fiber filament yarn include one or more of polyester and nylon fibers; The mixed conditions include: the warp density is 15-20 yarns / inch; the weft density is 15-18 yarns / inch; the warp arrangement ratio of the fiber filament yarn with an inert surface to the fiber filament yarn with a reactive surface is 1-2:1; the weft arrangement ratio of the fiber filament yarn with an inert surface to the fiber filament yarn with a reactive surface is 1:1-2; the twist of the fiber filament yarn with an inert surface is 50-100 twists / meter; the twist of the fiber filament yarn with a reactive surface is 0-10 twists / meter; The conditions of the dipping treatment include: the viscosity of the glue solution is 150-300 mPa·s, the coating amount of the glue solution is 30-50 g / m 2 ; The drying temperature after the dipping process is 135~155℃; The conditions of the glue coating treatment include: the viscosity of the scraping glue solution is 15000-25000 mPa·s; two scraping passes are applied on each side of the fabric, and the amount of glue applied in the first scraping pass is 45-55 g / m 2 The second coating amount is 25~35g / m 2 ; The drying temperature after the gluing process is completed is 135~155℃.

2. The preparation method according to claim 1, characterized in that: The fineness of the fiber filament yarn with an inert surface is 500-1500D; the fineness of the fiber filament yarn with a reactive surface is 1000-2000D.

3. The preparation method according to claim 1 or 2, characterized in that: The mixed weaving method is plain weave or twill weave.

4. The preparation method according to claim 1, characterized in that: The conditions of the corona treatment include: power of 50~150W·min / m 2 , processing speed is 3~6m / min, and electrode voltage is 10~20kV.

5. The preparation method according to claim 1, characterized in that: The standing defoaming time is 40 to 60 minutes.

6. The preparation method according to claim 1, characterized in that: The glue used in the glue dipping process and the glue coating process is independently a mixture of a polyurethane resin adhesive and a curing agent.

7. The preparation method according to claim 1, characterized in that: The polymer matrix includes TPU or PVC.

8. The polymer coated hybrid fabric prepared by the preparation method according to any one of claims 1 to 7.