A high-strength composite roller and its processing method

Abstract

This invention relates to the field of roller manufacturing technology, specifically disclosing a high-strength composite roller and its processing method. The adhesive provided by this invention is first copolymerized with acrylate, styrene, and 1-vinyl-3-methylimidazole p-toluenesulfonate. The introduction of the ionic liquid 1-vinyl-3-methylimidazole p-toluenesulfonate promotes the mutual attraction between the adhesive molecules and the substrate surface through its polar groups, enabling stable adhesion between different material interfaces, thereby effectively improving the bonding effect between the adhesive and the substrate. The introduction of styrene can improve the fluidity and viscosity of the adhesive, further enhancing the adhesion of the adhesive to the substrate. At the same time, styrene also has high thermal stability, significantly improving the adhesion performance of the adhesive under high-temperature conditions. This invention further enhances the stability and heat resistance of the adhesive by adding acrylic-modified silicone resin and epoxy resin to the polymerization reaction product.

Description

Technical Field

[0001] This invention relates to the field of roller manufacturing technology, specifically to a high-strength composite roller and its processing method. Background Technology

[0002] Composite rollers are a type of special roller widely used in various industries. Their main function is to enhance performance, improve durability, and reduce production costs by combining different materials. With the development of industrial technology, research on composite materials has gradually emerged. Studies have found that combining materials with different properties can effectively improve the overall performance of rollers. Especially in fields such as metallurgy, papermaking, plastics processing, and food processing, the application of composite rollers is becoming increasingly widespread, making them one of the essential pieces of equipment in modern production.

[0003] Composite rolls typically consist of an outer layer and an inner layer. The outer layer is usually made of wear-resistant and corrosion-resistant materials, while the inner layer tends to be made of materials with good strength and toughness. This design allows composite rolls to maintain a good appearance while effectively resisting the effects of the external environment, improving the durability of the entire system. For example, in the paper industry, composite rolls often use high-performance polyurethane materials combined with steel to form a roll that can withstand high pressure, is wear-resistant, and is not prone to rust. This type of roll not only extends its service life but also reduces maintenance costs and improves production efficiency.

[0004] In the manufacturing process of composite rollers, the binder plays a crucial role. It not only effectively bonds different material layers but also ensures the overall performance and durability of the composite roller. Commonly used binders include polyurethane, epoxy resin, and ethylene-vinyl acetate copolymer (EVA). Although existing binders for composite rollers perform well in many applications, they still have some significant drawbacks. For example, some binders lack durability under high temperature or humid conditions, easily leading to bond failure and affecting the overall performance and service life of the composite roller. Furthermore, many existing binders have limited application ranges and cannot effectively meet specific industrial needs. Therefore, there is an urgent need to develop a higher-performance binder to meet the demands of modern industry. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a high-strength composite roller and its processing method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-strength composite roller includes a roller core and a composite sleeve, characterized in that the composite sleeve comprises, from the inside out, an inner adhesive layer, a honeycomb panel filling structure layer, an adhesive fixing layer, and an outer sleeve layer; the composite sleeve is bonded to the surface of the roller core via the adhesive layer; and the preparation method of the adhesive used for the inner adhesive layer and the adhesive fixing layer is as follows:

[0008] S1. Acrylate, styrene and 1-vinyl-3-methylimidazolium p-toluenesulfonate are added to an organic solvent and mixed evenly. Then, a crosslinking agent and an initiator are added to the mixture, and the mixture is heated and stirred to obtain reactant A.

[0009] S2. Add acrylic-modified silicone resin, epoxy resin and hydroxylated glass fiber to reactant A, heat and stir to react, and obtain reactant B.

[0010] S3. Add curing agent and accelerator to reactant B, and stir evenly to obtain adhesive.

[0011] In a preferred embodiment of the present invention, the binder preparation raw materials include, by mass parts, 20-40 parts acrylate, 3-5 parts styrene, 3-5 parts 1-vinyl-3-methylimidazolium p-toluenesulfonate, 60-80 parts organic solvent, 1-3 parts crosslinking agent, 0.5-1 part initiator, 2-3 parts acrylic modified silicone resin, 5-10 parts epoxy resin, 10-15 parts hydroxylated glass fiber, 6-12 parts curing agent, and 0.05-1 part accelerator.

[0012] In a preferred embodiment of the present invention, in step S1, the acrylate is selected from at least one of methyl acrylate, hydroxyethyl acrylate, and isooctyl acrylate; the crosslinking agent is selected from acrylic acid or acrylamide; and the initiator is selected from azobisisobutyronitrile.

[0013] In a preferred embodiment of the present invention, in step S1, the temperature of the heating and stirring reaction is 80-85℃, for example, 80℃, 81℃, 82℃, 83℃, 84℃, or 85℃ can be selected; the heating and stirring reaction time is 2-4h, for example, 2h, 2.5h, 3h, 3.5h, or 4h can be selected, but it is not limited to the listed values, and other unlisted values ​​within the range are also applicable.

[0014] In a preferred embodiment of the present invention, in step S2, the temperature of the heating and stirring reaction is 70-78°C, for example, 70°C, 71°C, 72°C, 73°C, 74°C, 75°C, 76°C, 77°C, or 78°C; the heating and stirring reaction time is 1-2 hours, for example, 1 hour, 1.5 hours, or 2 hours; but not limited to the listed values, other unlisted values ​​within the range are also applicable.

[0015] In a preferred embodiment of the present invention, the preparation method of hydroxylated glass fiber in step S2 is as follows: the glass fiber is ultrasonically dispersed in a nitric acid solution and hydrothermally treated at 100-120°C for 1-3 hours, followed by filtration, washing and drying to obtain hydroxylated glass fiber.

[0016] In a preferred embodiment of the present invention, in step S3, the curing agent is selected from diaminodiphenylmethane, and the accelerator is selected from 2-methylimidazole or boron trifluoride ethylamine.

[0017] In a preferred embodiment of the present invention, the roller core includes a hollow roller in the middle and roller supports at both ends.

[0018] In a preferred embodiment of the present invention, the roller core is selected from a metal roller core, a carbon fiber roller core, a fiberglass roller core, or a carbon fiber-fiberglass composite roller core.

[0019] In a preferred embodiment of the present invention, the honeycomb panel filling structure layer is made of aramid honeycomb panel.

[0020] In a preferred embodiment of the present invention, the outer layer of the sleeve is made of polyurethane, synthetic rubber, synthetic resin, metal alloy or ceramic.

[0021] The present invention also provides a processing method for the above-mentioned high-strength composite roller, comprising the following steps:

[0022] S01. Machining the roller core: Machining the roller core according to the design drawings;

[0023] S02, Inner adhesive layer: Apply adhesive to the roller core to obtain the inner adhesive layer;

[0024] S03, honeycomb panel filling structure layer: The thickness of the honeycomb panel filling structure layer is determined according to the outer diameter of the composite roller. The cut honeycomb panel is wrapped around the outer surface of the inner adhesive layer and cured to obtain the honeycomb panel filling structure layer.

[0025] S04, Adhesive and fixing layer: Apply adhesive to the honeycomb panel filling structure layer to obtain the adhesive and fixing layer;

[0026] S05, Composite Sleeve Outer Layer: Select roller surface material and composite sleeve outer layer on the outer surface of the bonding and fixing layer;

[0027] S06. Grind and polish the outer surface of the composite sleeve until it reaches the designed outer diameter.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The adhesive provided by the present invention first uses acrylate, styrene and 1-vinyl-3-methylimidazole toluenesulfonate copolymerization. The introduction of the ionic liquid 1-vinyl-3-methylimidazole toluenesulfonate can promote the mutual attraction between the adhesive molecules and the substrate surface by the polar groups in its molecular structure, so as to form a stable bond between different material interfaces, thereby effectively improving the bonding effect between the adhesive and the substrate. The introduction of styrene can improve the fluidity and viscosity of the adhesive, further improving the adhesion of the adhesive to the substrate. At the same time, styrene also has high thermal stability, which significantly improves the bonding performance of the adhesive under high temperature conditions.

[0030] (2) This invention adds acrylic-modified silicone resin and epoxy resin to the polymerization reaction product. The acrylic-modified silicone resin has the advantages of both acrylic resin and silicone resin, which makes the adhesive have better adhesion and heat resistance. The imidazole group in the ionic liquid can initiate the epoxy resin to react, which increases the crosslinking density of the system and obtains a more compact polymer with better heat resistance, which further improves the stability and heat resistance of the adhesive. This invention improves the dispersion performance of glass fiber in the adhesive by hydroxylating glass fiber, which enables the glass fiber to distribute stress evenly and reduce stress concentration, thereby improving the overall performance of the adhesive and thus improving the service life of the composite roller. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the high-strength composite roller provided by the present invention. Detailed Implementation

[0032] The present invention will be further described in detail below through specific preferred embodiments, but the present invention is not limited to the following embodiments.

[0033] It should be noted that, unless otherwise specified, all chemical reagents involved in this invention were purchased through commercial channels.

[0034] The acrylic-modified silicone resin used in this embodiment of the invention has CAS number 67763-03-5 and was purchased from Shenzhen Jipeng Silicon Fluorine Materials Co., Ltd.; the epoxy resin has grade E-44 and was purchased from Shandong Luxing Chemical Co., Ltd.; the glass fiber is chopped glass fiber with a length of 1-3 mm and was purchased from Changzhou Lingteng Composite Materials Co., Ltd.

[0035] Example 1

[0036] A method for preparing an adhesive includes the following steps:

[0037] S1. Add 15 parts of hydroxyethyl acrylate, 15 parts of isooctyl acrylate, 5 parts of styrene and 5 parts of 1-vinyl-3-methylimidazolium p-toluenesulfonate to 80 parts of organic solvent toluene, mix well, then add 2 parts of crosslinking agent acrylic acid and 0.5 parts of initiator azobisisobutyronitrile, heat and stir at 80°C for 4 hours to obtain reactant A.

[0038] S2. Add 2 parts of acrylic modified silicone resin, 8 parts of epoxy resin E-44 and 10 parts of hydroxylated glass fiber to reactant A, heat and stir at 70°C for 2 hours to obtain reactant B.

[0039] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0040] S3. Add 10 parts of diaminodiphenylmethane and 0.5 parts of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0041] Example 2

[0042] A method for preparing an adhesive includes the following steps:

[0043] S1. Add 10 parts of methyl acrylate, 20 parts of isooctyl acrylate, 3 parts of styrene and 5 parts of 1-vinyl-3-methylimidazolium p-toluenesulfonate to 80 parts of organic solvent toluene, mix well, then add 3 parts of crosslinking agent acrylic acid and 1 part of initiator azobisisobutyronitrile, heat and stir at 85°C for 2 hours to obtain reactant A.

[0044] S2. Add 2 parts of acrylic modified silicone resin, 6 parts of epoxy resin E-44 and 15 parts of hydroxylated glass fiber to reactant A, heat and stir at 78°C for 2 hours to obtain reactant B.

[0045] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0046] S3. Add 6 parts of diaminodiphenylmethane and 1 part of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0047] Example 3

[0048] A method for preparing an adhesive includes the following steps:

[0049] S1. Add 15 parts of methyl acrylate, 15 parts of hydroxyethyl acrylate, 5 parts of styrene and 3 parts of 1-vinyl-3-methylimidazolium p-toluenesulfonate to 80 parts of organic solvent toluene, mix well, then add 1 part of crosslinking agent acrylic acid and 0.5 parts of initiator azobisisobutyronitrile, heat and stir at 85°C for 2 hours to obtain reactant A.

[0050] S2. Add 3 parts of acrylic modified silicone resin, 6 parts of epoxy resin E-44 and 12 parts of hydroxylated glass fiber to reactant A, heat and stir at 75°C for 2 hours to obtain reactant B.

[0051] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0052] S3. Add 8 parts of diaminodiphenylmethane and 0.2 parts of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0053] Example 4

[0054] A method for preparing an adhesive includes the following steps:

[0055] S1. Add 10 parts of methyl acrylate, 10 parts of hydroxyethyl acrylate, 10 parts of isooctyl acrylate, 4 parts of styrene and 4 parts of 1-vinyl-3-methylimidazolium p-toluenesulfonate to 80 parts of organic solvent toluene, mix well, then add 2 parts of crosslinking agent acrylic acid and 1 part of initiator azobisisobutyronitrile, heat and stir at 85°C for 2 hours to obtain reactant A.

[0056] S2. Add 3 parts of acrylic modified silicone resin, 10 parts of epoxy resin E-44 and 12 parts of hydroxylated glass fiber to reactant A, heat and stir at 75°C for 2 hours to obtain reactant B.

[0057] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0058] S3. Add 12 parts of diaminodiphenylmethane and 0.5 parts of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0059] Comparative Example 1

[0060] A method for preparing an adhesive includes the following steps:

[0061] S1. Add 15 parts of hydroxyethyl acrylate and 15 parts of isooctyl acrylate to 80 parts of organic solvent toluene, mix well, then add 2 parts of crosslinking agent acrylic acid and 0.5 parts of initiator azobisisobutyronitrile, heat and stir at 80°C for 4 hours to obtain reactant A.

[0062] S2. Add 2 parts of acrylic modified silicone resin, 8 parts of epoxy resin E-44 and 10 parts of hydroxylated glass fiber to reactant A, heat and stir at 70°C for 2 hours to obtain reactant B.

[0063] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0064] S3. Add 10 parts of diaminodiphenylmethane and 0.5 parts of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0065] Compared to Comparative Example 1 and Example 1, no styrene and 1-vinyl-3-methylimidazolium p-toluenesulfonate were added.

[0066] Comparative Example 2

[0067] A method for preparing an adhesive includes the following steps:

[0068] S1. Add 15 parts of hydroxyethyl acrylate, 15 parts of isooctyl acrylate and 5 parts of 1-vinyl-3-methylimidazolium p-toluenesulfonate to 80 parts of organic solvent toluene and mix well. Then add 2 parts of crosslinking agent acrylic acid and 0.5 parts of initiator azobisisobutyronitrile and heat and stir at 80°C for 4 hours to obtain reactant A.

[0069] S2. Add 2 parts of acrylic modified silicone resin, 8 parts of epoxy resin E-44 and 10 parts of hydroxylated glass fiber to reactant A, heat and stir at 70°C for 2 hours to obtain reactant B.

[0070] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0071] S3. Add 10 parts of diaminodiphenylmethane and 0.5 parts of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0072] Compared to Example 1, no styrene was added in Comparative Example 2.

[0073] Comparative Example 3

[0074] A method for preparing an adhesive includes the following steps:

[0075] S1. Add 15 parts of hydroxyethyl acrylate, 15 parts of isooctyl acrylate and 5 parts of styrene to 80 parts of organic solvent toluene, mix well, then add 2 parts of crosslinking agent acrylic acid and 0.5 parts of initiator azobisisobutyronitrile, heat and stir at 80°C for 4 hours to obtain reactant A.

[0076] S2. Add 2 parts of acrylic modified silicone resin, 8 parts of epoxy resin E-44 and 10 parts of hydroxylated glass fiber to reactant A, heat and stir at 70°C for 2 hours to obtain reactant B.

[0077] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0078] S3. Add 10 parts of diaminodiphenylmethane and 0.5 parts of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0079] Compared with Example 1, Comparative Example 3 did not contain 1-vinyl-3-methylimidazolium p-toluenesulfonate.

[0080] Comparative Example 4

[0081] A method for preparing an adhesive includes the following steps:

[0082] S1. Add 15 parts of hydroxyethyl acrylate, 15 parts of isooctyl acrylate, 5 parts of styrene and 5 parts of 1-vinyl-3-methylimidazolium p-toluenesulfonate to 80 parts of organic solvent toluene, mix well, then add 2 parts of crosslinking agent acrylic acid and 0.5 parts of initiator azobisisobutyronitrile, heat and stir at 80°C for 4 hours to obtain reactant A.

[0083] S2. Add 8 parts of epoxy resin E-44 and 10 parts of hydroxylated glass fiber to reactant A, heat and stir at 70°C for 2 hours to obtain reactant B;

[0084] The preparation method of hydroxylated glass fiber is as follows: 10g of glass fiber is ultrasonically dispersed in 150mL of 1mol / L nitric acid solution, and hydrothermally treated at 120℃ for 2h. After filtration, washing and drying, hydroxylated glass fiber is obtained.

[0085] S3. Add 10 parts of diaminodiphenylmethane and 0.5 parts of boron trifluoride ethylamine to reactant B, and stir until homogeneous to obtain the binder.

[0086] Compared with Example 1, no acrylic-modified silicone resin was added in Comparative Example 4.

[0087] The adhesives prepared in Examples 1-4 and Comparative Examples 1-4 were subjected to performance tests, and the specific steps are as follows;

[0088] Adhesion test: A tensile testing machine was used at a test temperature of 24℃ and a relative humidity of 50%. The adhesive was applied to a stainless steel plate and heat-cured. The thickness of the cured dry adhesive was 100μm. After rolling back and forth twice with a 2kg roller, a 180° peel test was performed to test the 180° peel strength of the test sample.

[0089] Temperature resistance test: A high-temperature holding force tester was used. The adhesive was coated onto a stainless steel plate and heat-cured. The cured dry adhesive thickness was 100μm. The plate was rolled back and forth twice with a 2kg roller and left for 20 minutes. Then, it was hung vertically with a 1kg weight suspended from the bottom. The drop time of the test sample at 150℃ and 200℃ was measured. The test results are shown in Table 1 below.

[0090] Table 1 Performance test results of the adhesive

[0091] 180° peel strength (N / 25mm) Holding time at 150℃ (h) Holding time at 200℃ (h) Example 1 19.8 ＞72h 26 Example 2 19.1 ＞72h 22 Example 3 20.3 ＞72h 29 Example 4 19.6 ＞72h 25 Comparative Example 1 13.5 ＞36h 11 Comparative Example 2 16.2 ＞72h 15 Comparative Example 3 15.7 ＞72h 18 Comparative Example 4 18.3 ＞72h 23

[0092] As can be seen from Table 1, compared with Comparative Examples 1-4, the adhesive prepared in the embodiments of the present invention has good bonding performance and high temperature resistance.

[0093] like Figure 1 As shown, the present invention also provides a high-strength composite roller, including a roller core 1 and a composite sleeve; the roller core 1 includes a hollow roller in the middle and roller supports symmetrically arranged at both ends, and the roller core is made of metal roller core, carbon fiber roller core, fiberglass roller core or carbon fiber fiberglass composite roller core; the composite sleeve consists of an inner adhesive layer 2, a honeycomb panel filling structure layer 3, an adhesive fixing layer 4 and an outer sleeve layer 5 from the inside to the outside, the honeycomb panel filling structure layer 3 is made of aramid honeycomb panel, and the outer sleeve layer 5 is made of polyurethane, synthetic rubber, synthetic resin, metal alloy or ceramic; the composite sleeve is bonded to the surface of the roller core 1 through the inner adhesive layer 2.

[0094] The adhesives used in the inner adhesive layer 2 and the adhesive fixing layer 4 are prepared by the above preparation method.

[0095] The present invention also provides a processing method for the above-mentioned high-strength composite roller, comprising the following steps:

[0096] S01. Machining Roller Core 1: Machining roller core 1 according to the design drawings;

[0097] S02, Inner adhesive layer 2: Apply adhesive to the roller core 1 to obtain inner adhesive layer 2;

[0098] S03, honeycomb panel filling structure layer 3: The thickness of the honeycomb panel filling structure layer 3 is determined according to the outer diameter of the composite roller. The cut honeycomb panel is wrapped around the outer surface of the inner adhesive layer 2 and cured to obtain the honeycomb panel filling structure layer 3.

[0099] S04, Adhesive fixing layer 4: Apply adhesive to the honeycomb panel filling structure layer 3 to obtain adhesive fixing layer 4;

[0100] S05, Composite Sleeve Outer Layer 5: Select roller surface material and composite sleeve outer layer 5 on the outer surface of adhesive fixing layer 4;

[0101] S06. Grind and polish the outer surface of the composite sleeve until it reaches the designed outer diameter.

[0102] Finally, it should be noted that the above embodiments do not limit the present invention in any way. Those skilled in the art can make modifications and improvements based on the present invention. Therefore, any modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A high-strength composite roller, comprising a roller core (1) and a composite sleeve, characterized in that, The composite sleeve consists of an inner adhesive layer (2), a honeycomb panel filling structure layer (3), an adhesive fixing layer (4), and an outer sleeve layer (5) from the inside out. The composite sleeve is bonded to the surface of the roller core (1) through the adhesive layer (2). The preparation method of the adhesive used in the inner adhesive layer (2) and the adhesive fixing layer (4) is as follows: S1. Acrylate, styrene and 1-vinyl-3-methylimidazolium p-toluenesulfonate are added to an organic solvent and mixed evenly. Then, a crosslinking agent and an initiator are added to the mixture, and the mixture is heated and stirred to obtain reactant A. S2. Add acrylic-modified silicone resin, epoxy resin and hydroxylated glass fiber to reactant A, heat and stir to react, and obtain reactant B. S3. Add curing agent and accelerator to reactant B, and stir evenly to obtain adhesive.

2. The high-strength composite roller according to claim 1, characterized in that, The binder preparation raw materials, by mass, include 20-40 parts acrylate, 3-5 parts styrene, 3-5 parts 1-vinyl-3-methylimidazolium p-toluenesulfonate, 60-80 parts organic solvent, 1-3 parts crosslinking agent, 0.5-1 part initiator, 2-3 parts acrylic modified silicone resin, 5-10 parts epoxy resin, 10-15 parts hydroxylated glass fiber, 6-12 parts curing agent, and 0.05-1 part accelerator.

3. The high-strength composite roller according to claim 1, characterized in that, In step S1, the acrylate is selected from at least one of methyl acrylate, hydroxyethyl acrylate, and isooctyl acrylate; the crosslinking agent is selected from acrylic acid or acrylamide; and the initiator is selected from azobisisobutyronitrile.

4. The high-strength composite roller according to claim 1, characterized in that, In step S1, the temperature for heating and stirring the reaction is 80-85℃, and the reaction time is 2-4 hours.

5. The high-strength composite roller according to claim 1, characterized in that, In step S2, the temperature for heating and stirring the reaction is 70-78℃, and the reaction time is 1-2 hours.

6. The high-strength composite roller according to claim 1, characterized in that, In step S3, the curing agent is selected from diaminodiphenylmethane, and the accelerator is selected from 2-methylimidazole or boron trifluoride ethylamine.

7. The high-strength composite roller according to claim 1, characterized in that, The roller core (1) includes a hollow roller in the middle and roller supports at both ends.

8. The high-strength composite roller according to claim 1, characterized in that, The roller core (1) is selected from metal roller core, carbon fiber roller core, fiberglass roller core or carbon fiber fiberglass composite roller core.

9. The high-strength composite roller according to claim 1, characterized in that, The outer layer (5) of the sleeve is made of synthetic rubber, synthetic resin, metal alloy or ceramic.

10. A method for processing the high-strength composite roller according to claim 1, comprising the following steps: S01. Processing the roller core (1): Process the roller core (1) according to the design drawings; S02, Inner adhesive layer (2): Apply adhesive to the roller core (1) to obtain inner adhesive layer (2); S03, wrapping the honeycomb panel filling structure layer (3): determine the thickness of the honeycomb panel filling structure layer (3) according to the outer diameter of the composite roller, wrap the cut honeycomb panel sheet around the outer surface of the inner adhesive layer (2), and obtain the honeycomb panel filling structure layer (3) after curing. S04, Covering and bonding fixing layer (4): Apply adhesive to the honeycomb panel filling structure layer (3) to obtain the bonding fixing layer (4). S05, Composite sleeve outer layer (5): Select roller surface material and composite sleeve outer layer (5) on the outer surface of adhesive fixing layer (4); S06. Grind and polish the outer surface of the composite sleeve until it reaches the designed outer diameter.

Images