Splicing material for cattle bed, preparation method of splicing material and spliced cattle bed

Abstract

The invention provides a splicing material for a cattle bed, a preparation method of the splicing material and a spliced cattle bed, and relates to the technical field of rubber products. The splicing material for the cattle bed comprises a wear-resistant layer and a hole forming layer, the wear-resistant layer is made of wear-resistant vulcanized rubber; the hole forming layer is vulcanized rubber with a closed hole structure; the upper surface and the side surface of the hole forming layer are completely wrapped by the wear-resistant layer; and the hole forming layer and the wear-resistant layer are combined through co-vulcanization. The wear-resistant vulcanized rubber is used as the wear-resistant layer and is durable, and the vulcanized rubber with a closed-pore structure is used as the pore-forming layer and is soft, comfortable and not prone to mildewing; the upper surface and the side face of the hole forming layer are completely wrapped by the wear-resistant layer and are combined through co-vulcanization, so that the hole forming layer and the wear-resistant layer are integrated, the mildewing phenomenon can be further avoided, when the cattle bed is prepared, the cattle bed is directly spliced through splicing materials, the whole cattle bed is replaced if the whole cattle bed is damaged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of rubber product technology, specifically relating to a splicing material for cattle beds, its preparation method, and a spliced ​​cattle bed. Background Technology

[0002] In livestock farming, cattle bedding plays a crucial role. Comfortable cattle bedding can significantly improve cattle's production performance and farming efficiency by enhancing their rest quality and health. Therefore, selecting suitable cattle bedding is of great importance for sustainable livestock farming.

[0003] Currently, cattle beds typically consist of wear-resistant rubber sheets laid flat on polyurethane foam. Because cattle beds are generally quite large, multiple foam sheets are needed, with adjacent sheets squeezed tightly together without gaps. These sheets are then neatly arranged on a pre-prepared cement platform, and the rubber sheet is laid flat on top, bending to cover the foam on the side where the cow will be on the bed. Finally, the rubber sheet is secured to the cement platform with durable steel nails to form a single, integrated cattle bed.

[0004] When this type of cow bed is in use, milk and urine can easily leak from the sides onto the sponge, causing the sponge to become moldy. Furthermore, when one sponge becomes moldy, the entire cow bed becomes unusable, requiring the rubber panels to be disassembled and replaced, resulting in high maintenance costs. Summary of the Invention

[0005] The purpose of this invention is to provide a splicing material for cattle beds, its preparation method, and a spliced ​​cattle bed. The splicing material for cattle beds provided by this invention is soft and comfortable, not prone to mold, durable, and the spliced ​​cattle bed made from it has low maintenance costs.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: This invention provides a splicing material for cattle beds, comprising a wear-resistant layer and a porous layer; the wear-resistant layer is wear-resistant vulcanized rubber; the porous layer is vulcanized rubber with a closed-cell structure; the upper surface and sides of the porous layer are completely covered by the wear-resistant layer; the porous layer and the wear-resistant layer are bonded together by co-vulcanization.

[0007] Preferably, the raw materials of the wear-resistant layer, by weight, include: 60-80 parts of natural rubber, 25-40 parts of styrene-butadiene rubber, 15-30 parts of cis-butadiene rubber, 40-60 parts of carbon black, 20-35 parts of naphthenic oil, 5-10 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of accelerator, 1-3 parts of antioxidant, 1-3 parts of silane coupling agent, and 1-3 parts of sulfur.

[0008] Preferably, the raw materials of the porous layer, by weight, include: 100-120 parts isoprene rubber, 40-60 parts carbon black, 80-100 parts naphthenic oil, 10-25 parts foaming agent, 5-10 parts zinc oxide, 5-10 parts stearic acid, 0.5-1.5 parts accelerator, and 0.8-1.6 parts sulfur.

[0009] Preferably, the accelerator is CZ.

[0010] This invention also provides a method for preparing the splicing material for cattle beds described in the above technical solution, comprising the following steps: The raw materials for the wear-resistant layer are first mixed and then first calendered to obtain a wear-resistant layer calendered sheet. The raw material for the porous layer is subjected to a second mixing and a second calendering to obtain a porous layer calendered sheet. The wear-resistant calendered sheet is placed on top of the perforated calendered sheet, and the edges of the wear-resistant calendered sheet are used to wrap around the sides of the perforated calendered sheet to obtain a composite. The composite is vulcanized to obtain a splicing material for cattle beds.

[0011] Preferably, the temperature of the first mixing is 65~75℃; and the temperature of the first rolling is 85~95℃.

[0012] Preferably, the temperature of the second mixing is 45~55℃; and the temperature of the second rolling is 55~65℃.

[0013] Preferably, the thickness of the wear-resistant calendered sheet is 4.9~5.1mm; the thickness of the porous calendered sheet is 9.9~10.1mm.

[0014] Preferably, the vulcanization temperature is 145~155℃, the pressure is 7.8~8.2MPa, and the time is 28~32min.

[0015] The present invention also provides a spliced ​​cattle bed, which is spliced ​​together from cattle bed splicing materials, characterized in that the cattle bed splicing material is the cattle bed splicing material described in the above technical solution or the cattle bed splicing material prepared by the preparation method described in the above technical solution.

[0016] This invention provides a splicing material for cattle beds, comprising a wear-resistant layer and a porous layer; the wear-resistant layer is wear-resistant vulcanized rubber; the porous layer is vulcanized rubber with a closed-cell structure; the upper surface and sides of the porous layer are completely covered by the wear-resistant layer; the porous layer and the wear-resistant layer are bonded together by co-vulcanization. The wear-resistant layer of this invention is made of wear-resistant vulcanized rubber, which is durable. The porous layer of this application is made of vulcanized rubber with a closed-cell structure, which is soft and comfortable. Compared with open-cell sponges, the closed-cell porous layer is less prone to mold growth. Furthermore, the upper surface and sides of the porous layer are completely covered by the wear-resistant layer. The porous layer and the wear-resistant layer are bonded together through co-vulcanization, making the porous layer and the wear-resistant layer an integral whole. Therefore, milk and urine will not easily enter the interior of the cow bedding splicing material, which can prevent mold growth. Moreover, since the upper layer of the cow bedding splicing material of this invention is a wear-resistant layer, the cow bedding splicing material can be directly spliced ​​together during the preparation of the cow bedding, without the need to lay rubber sheets. The construction is simple, and only the damaged part of the entire cow bedding needs to be replaced, which greatly reduces maintenance costs. Detailed Implementation

[0017] This invention provides a splicing material for cattle beds, comprising a wear-resistant layer and a porous layer; the wear-resistant layer is wear-resistant vulcanized rubber; the porous layer is vulcanized rubber with a closed-cell structure; the upper surface and sides of the porous layer are completely covered by the wear-resistant layer; the porous layer and the wear-resistant layer are bonded together by co-vulcanization.

[0018] The splicing material for cattle beds provided by this invention includes a wear-resistant layer, which is wear-resistant vulcanized rubber. The wear-resistant layer of this invention, being wear-resistant vulcanized rubber, is durable.

[0019] In this invention, the raw materials of the wear-resistant layer, by weight, preferably include: 60-80 parts of natural rubber, 25-40 parts of styrene-butadiene rubber, 15-30 parts of butadiene rubber, 40-60 parts of carbon black, 20-35 parts of naphthenic oil, 5-10 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of accelerator, 1-3 parts of antioxidant, 1-3 parts of silane coupling agent, and 1-3 parts of sulfur.

[0020] The raw material of the wear-resistant layer, by weight, preferably includes 60-80 parts of natural rubber, more preferably 60-70 parts. In embodiments of the present invention, the natural rubber may specifically be 60 parts, 65 parts, 70 parts, 75 parts, or 80 parts. Natural rubber has good wear resistance; its addition can enhance the wear resistance of vulcanized rubber. An appropriate amount of natural rubber can improve the network structure of the rubber and increase its tensile strength.

[0021] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 25-40 parts of styrene-butadiene rubber (SBR), more preferably 25-30 parts. In embodiments of the present invention, the SBR may specifically be 25, 30, 35, or 40 parts. The presence of butadiene units in the molecular chain of SBR endows it with excellent wear resistance. The addition of the above-mentioned amounts of SBR can enhance the wear resistance of vulcanized rubber, thus extending its service life in environments subjected to friction and wear.

[0022] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 15-30 parts of butadiene rubber, more preferably 15-20 parts. In embodiments of the present invention, the butadiene rubber may specifically be 15 parts, 20 parts, 25 parts, or 30 parts. The molecular chain of butadiene rubber is composed of butadiene units and has a highly cis structure. This structure endows butadiene rubber with excellent wear resistance. Adding the above-mentioned amount of butadiene rubber can significantly improve the wear resistance of vulcanized rubber, making it have a longer service life in environments subjected to friction and wear.

[0023] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 40-60 parts of carbon black, more preferably 40-50 parts. In embodiments of the present invention, the carbon black may specifically be 40 parts, 45 parts, 50 parts, 55 parts, or 60 parts. Carbon black has an extremely high specific surface area and a complex microstructure, which can significantly improve the wear resistance of rubber. Its particles form a network structure in the rubber matrix, dispersing stress and reducing local stress concentration, thereby reducing wear. The carbon black content mentioned above can form an effective stress dispersion network, improving wear resistance.

[0024] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 20-35 parts of naphthenic oil, more preferably 20-30 parts. In embodiments of the present invention, the naphthenic oil may specifically be 20 parts, 25 parts, 30 parts, or 35 parts. Naphthenic oil has good lubricity, can reduce the viscosity of rubber, improve the processing performance of rubber, and make it easier to handle during compounding, calendering, and other processing. The addition of the above-mentioned amount of naphthenic oil can reduce the hardness and modulus of rubber, so that it has better flexibility and elasticity while maintaining good wear resistance.

[0025] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 5-10 parts of zinc oxide, more preferably 5-7 parts. In embodiments of the present invention, the zinc oxide may specifically be 5 parts, 7 parts, 9 parts, or 10 parts. Zinc oxide is a key activator in the sulfur vulcanization system. It works synergistically with stearic acid to generate soluble zinc soap, which can significantly improve vulcanization efficiency. The synergistic use of zinc oxide and carbon black can enhance the wear resistance of rubber.

[0026] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 1-3 parts of stearic acid, more preferably 1-2 parts. In embodiments of the present invention, the stearic acid may specifically be 1 part, 2 parts, or 3 parts. The addition of stearic acid can significantly improve vulcanization efficiency and processing performance.

[0027] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 1-3 parts of an accelerator, more preferably 1-2 parts. In embodiments of the present invention, the accelerator may specifically be 1 part, 2 parts, or 3 parts. The accelerator can significantly accelerate the vulcanization rate and improve wear resistance and anti-aging properties.

[0028] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 1-3 parts of antioxidant, more preferably 1-2 parts. In embodiments of the present invention, the antioxidant may specifically be 1 part, 2 parts, or 3 parts. The antioxidant can significantly improve the rubber's resistance to oxidation, ozone, heat, light, and flexural cracking, thereby extending its service life.

[0029] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 1-3 parts of silane coupling agent, more preferably 1-2 parts. In embodiments of the present invention, the silane coupling agent may specifically be 1 part, 2 parts, or 3 parts. The silane coupling agent enhances the interaction between inorganic fillers such as zinc oxide and carbon black and the rubber, enabling stress to be transmitted more evenly, reducing stress concentration, and thereby improving the resistance to tensile failure.

[0030] Based on 60-80 parts by weight of natural rubber, the raw material of the wear-resistant layer preferably includes 1-3 parts of sulfur, more preferably 1-2 parts. In embodiments of the present invention, the sulfur may specifically be 1 part, 2 parts, or 3 parts. Sulfur is a core component of the rubber vulcanization reaction and can undergo cross-linking reactions with rubber molecular chains to form a three-dimensional network structure. This cross-linking structure significantly improves the mechanical properties, wear resistance, and aging resistance of the rubber.

[0031] This invention does not have any special limitations on the source of the raw materials used; commercially available materials are acceptable. In the embodiments of this invention, the carbon black is 375 carbon black, the accelerator is CZ, the antioxidant is 4010NA, and the silane coupling agent is KH550.

[0032] The splicing material for cattle beds provided by this invention also includes a porous layer, which is a vulcanized rubber with a closed-cell structure. The porous layer of this invention, being a vulcanized rubber with a closed-cell structure, is soft and comfortable, and the closed-cell porous layer is less prone to mold growth.

[0033] In this invention, the raw materials of the porous layer preferably include, by weight parts: 100-120 parts isoprene rubber, 40-60 parts carbon black, 80-100 parts naphthenic oil, 10-25 parts foaming agent, 5-10 parts zinc oxide, 5-10 parts stearic acid, 0.5-1.5 parts accelerator, and 0.8-1.6 parts sulfur.

[0034] The raw material of the pore-forming layer preferably includes 100-120 parts of isoprene rubber, more preferably 100-110 parts, by weight. In embodiments of the present invention, the isoprene rubber may specifically be 100 parts, 105 parts, 110 parts, 115 parts, or 120 parts. Isoprene rubber has excellent elasticity and flexibility, which can significantly improve the elasticity and flexibility of the pore-forming rubber, enabling it to better adapt to volume changes during the pore-forming process and reduce internal stress.

[0035] Based on 100-120 parts by weight of isoprene rubber, the raw material of the porous layer preferably includes 40-60 parts of carbon black, more preferably 40-50 parts. In embodiments of the present invention, the carbon black may specifically be 40, 45, 50, 55, or 60 parts. The addition of carbon black can significantly improve the reinforcing effect, processing performance, wear resistance, aging resistance, and the uniformity and stability of the pore structure.

[0036] Based on 100-120 parts by weight of isoprene rubber, the raw material for the porous layer preferably includes 80-100 parts of naphthenic oil, more preferably 80-90 parts. In embodiments of the present invention, the naphthenic oil may specifically be 80, 85, 90, 95, or 100 parts. The addition of naphthenic oil can improve the low-temperature performance of the rubber, enabling it to maintain good elasticity and flexibility at low temperatures, reducing brittleness caused by low temperatures, and improving processing performance.

[0037] Based on 100-120 parts by weight of isoprene rubber, the raw material of the porous layer preferably includes 10-25 parts of a foaming agent, more preferably 10-20 parts. In embodiments of the present invention, the foaming agent may specifically be 10 parts, 15 parts, 20 parts, or 25 parts. The foaming agent is key to achieving closed-cell foaming; it can form a closed porous structure, reduce rubber density, and improve elasticity.

[0038] Based on 100-120 parts by weight of isoprene rubber, the raw material of the porous layer preferably includes 5-10 parts of zinc oxide, more preferably 5-7 parts. In embodiments of the present invention, the zinc oxide may specifically be 5 parts, 7 parts, 9 parts, or 10 parts. Zinc oxide can significantly improve vulcanization efficiency, enhance reinforcing effect, improve aging resistance, enhance thermal stability, and improve pore structure.

[0039] Based on 100-120 parts by weight of isoprene rubber, the raw material for the porous layer preferably includes 5-10 parts of stearic acid, more preferably 5-7 parts. In embodiments of the present invention, the stearic acid may specifically be 5 parts, 7 parts, 9 parts, or 10 parts. The addition of stearic acid can significantly improve vulcanization efficiency and processing performance.

[0040] Based on 100-120 parts by weight of isoprene rubber, the raw material of the porous layer preferably includes 0.5-1.5 parts of an accelerator, more preferably 0.5-1.0 parts. In embodiments of the present invention, the accelerator may specifically be 0.5 parts, 1.0 parts, or 1.5 parts. The accelerator plays an important role in achieving closed-cell foaming, and can significantly accelerate the vulcanization rate and improve wear resistance and anti-aging properties.

[0041] Based on 100-120 parts by weight of isoprene rubber, the raw material for the porous layer preferably includes 0.8-1.6 parts of sulfur, more preferably 0.8-1.3 parts. In embodiments of the present invention, the sulfur may specifically be 0.8 parts, 1.0 parts, 1.3 parts, or 1.6 parts. Sulfur is a core component of the rubber vulcanization reaction and can undergo cross-linking reactions with rubber molecular chains to form a three-dimensional network structure. This cross-linking structure significantly improves the mechanical properties, abrasion resistance, and aging resistance of the rubber.

[0042] This invention does not impose any special limitations on the raw materials used; commercially available materials are acceptable. In the embodiments of this invention, the carbon black is 375 carbon black, the foaming agent is AC, and the accelerator is CZ.

[0043] In this invention, the upper surface and sides of the pore layer are completely covered by the wear-resistant layer. This covering method ensures that the durable wear-resistant layer adequately protects the soft pore layer, and prevents milk and urine from easily entering the pore layer, thus avoiding mold growth.

[0044] In this invention, the porous layer and the wear-resistant layer are bonded together through co-vulcanization. Through co-vulcanization, a uniform cross-linked network is formed between the wear-resistant layer and the porous layer, which enhances the adhesion between layers and improves the mechanical strength and durability of the splicing material for cattle beds, making it long-lasting.

[0045] In this invention, the thickness of the splicing material for the cattle bed is preferably 24-26 mm. In an embodiment of this invention, the thickness of the splicing material for the cattle bed is 25 mm, the width is 1.25 m, and the length is 1.9 m.

[0046] The splicing material for cattle beds provided by this invention is soft and comfortable, not easy to mold, durable, and can be directly spliced ​​into cattle beds without the need for a rubber cover.

[0047] This invention also provides a method for preparing the splicing material for cattle beds described in the above technical solution, comprising the following steps: The raw materials for the wear-resistant layer are first mixed and then first calendered to obtain a wear-resistant layer calendered sheet. The raw material for the porous layer is subjected to a second mixing and a second calendering to obtain a porous layer calendered sheet. The wear-resistant calendered sheet is placed on top of the perforated calendered sheet, and the edges of the wear-resistant calendered sheet are used to wrap around the sides of the perforated calendered sheet to obtain a composite. The composite is vulcanized to obtain a splicing material for cattle beds.

[0048] The present invention involves first mixing the raw materials of the wear-resistant layer and then first calendering them to obtain a wear-resistant layer calendered sheet.

[0049] In this invention, the temperature of the first mixing is preferably 65~75℃, more preferably 70~75℃.

[0050] In one embodiment of the present invention, the first mixing can be as follows: natural rubber, styrene-butadiene rubber, and butadiene rubber are added to a mixer and then subjected to a first mixing; carbon black and naphthenic oil are added and then subjected to a second mixing; zinc oxide, stearic acid, accelerator, antioxidant, and silane coupling agent are added and then subjected to a third mixing; sulfur is added and then subjected to a fourth mixing. The mixture is then discharged, the mixed rubber is sheeted, cooled, and neatly stacked to obtain a wear-resistant layer sheet. The time for the first mixing can be 3 minutes; the time for the second mixing can be 5 minutes; the time for the third mixing can be 1 minute; and the time for the fourth mixing can be 2 minutes.

[0051] In one embodiment of the present invention, the first calendering can be as follows: in an open rubber mixing mill, a wear-resistant layer rubber sheet is added for the first re-processing; after the re-processing is completed, the sheet is calendered for the first time in a calender; after calendering, the sheet is wound up by a winding machine and spread out to obtain a wear-resistant layer calendered sheet; the temperature of the first re-processing can be 65~75℃ or 70~75℃; the temperature of the first calendering can be 85~95℃ or 90~95℃; the thickness of the wear-resistant layer calendered sheet can be 4.9~5.1mm or 5.0~5.1mm.

[0052] The present invention involves a second mixing and a second calendering of the raw material for the porous layer to obtain a porous layer calendered sheet.

[0053] In this invention, the temperature of the second mixing is preferably 45~55°C, more preferably 50~55°C.

[0054] In one embodiment of the present invention, the second mixing can be as follows: in an internal mixer, isoprene rubber is added and then the mixture is pressed for a first internal mixing; then carbon black, naphthenic oil, and foaming agent are added and the mixture is pressed for a second internal mixing; then zinc oxide, stearic acid, and an accelerator are added and the mixture is pressed for a third internal mixing; then sulfur is added and the mixture is pressed for a fourth internal mixing; the mixture is discharged, the mixed rubber is sheeted, cooled, and neatly stacked to obtain a porous layer rubber sheet; the time for the first internal mixing can be 2 minutes; the time for the second internal mixing can be 5 minutes; the time for the third internal mixing can be 1 minute; and the time for the fourth internal mixing can be 2 minutes.

[0055] In one embodiment of the present invention, the second calendering can be as follows: in an open rubber mixing mill, a second re-processing of the foamed layer rubber sheet is added; after the re-processing is completed, a second calendering is performed in a calender; after the calendered sheet is produced, it is wound up by a winding machine and spread out to obtain a foamed layer calendered sheet; the temperature of the second re-processing can be 45~55℃ or 50~55℃; the temperature of the second calendering can be 55~65℃ or 60~65℃; the thickness of the foamed layer calendered sheet can be 9.9~10.1mm or 10.0~10.1mm.

[0056] After obtaining the wear-resistant calendered sheet and the porous calendered sheet, the present invention covers the porous calendered sheet with the wear-resistant calendered sheet and wraps the side of the porous calendered sheet with the edge of the wear-resistant calendered sheet to obtain a composite.

[0057] In this invention, when the wear-resistant calendered sheet is placed over the porous calendered sheet, it is preferable to start placing the wear-resistant calendered sheet from one end. The wear-resistant calendered sheet preferably leaves the same width or length on both sides (e.g., left, right, top, bottom) of the porous calendered sheet. In this invention, the width left on both sides is preferably 50-70 mm, and the length left on both sides is preferably 90-150 mm. In this invention, when the edge of the wear-resistant calendered sheet is used to wrap around the side of the porous calendered sheet, it is preferable to fold the excess wear-resistant calendered sheet behind the porous calendered sheet to obtain a composite. By starting the placement of the wear-resistant calendered sheet from one end, this invention can expel air and prevent the formation of bubbles during vulcanization; by leaving the aforementioned length or width of wear-resistant calendered sheet on both sides of the porous calendered sheet, this invention can achieve sufficient wrapping of the porous calendered sheet.

[0058] After obtaining the composite, the present invention vulcanizes the composite to obtain a splicing material for cattle beds.

[0059] In this invention, the vulcanization is preferably carried out in a flat vulcanizing machine, the vulcanization temperature is preferably 145~155℃, the pressure is preferably 7.8~8.2MPa, and the time is preferably 28~32min. Through the above vulcanization conditions, this invention enables the porous layer and the wear-resistant layer to fuse together.

[0060] As one embodiment of the present invention, after vulcanization is completed, the vulcanized product can be naturally cooled to room temperature to obtain the splicing material for cattle beds.

[0061] The cattle bedding splicing material prepared by the above method has a durable wear-resistant layer and a soft and comfortable pore layer with a closed-cell structure. The pore layer and the wear-resistant layer are integrated, preventing milk and urine from easily entering the interior of the cattle bedding splicing material and avoiding mold growth. When preparing the cattle bedding, the cattle bedding splicing material can be directly spliced ​​together.

[0062] The present invention also provides a modular cattle bed, which is assembled from a modular cattle bed material, wherein the modular cattle bed material is the modular cattle bed material described in the above technical solution or the modular cattle bed material prepared by the preparation method described in the above technical solution.

[0063] The modular cattle bed of this invention is soft, comfortable, resistant to mold, and durable. It can be directly assembled with splicing materials without the need for additional rubber sheets, making construction simple. Damaged sections of the cattle bed can be replaced only, greatly reducing maintenance costs.

[0064] The technical solutions of this invention will be clearly and completely described below with reference to the embodiments thereof. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0065] Example 1 The splicing material for cattle beds consists of a wear-resistant layer and a porous layer. The wear-resistant layer is wear-resistant vulcanized rubber, and the porous layer is vulcanized rubber with a closed-cell structure. The upper surface and sides of the porous layer are completely covered by the wear-resistant layer, and the porous layer and the wear-resistant layer are bonded together by co-vulcanization.

[0066] The raw materials of the wear-resistant layer, by weight parts, are: 60 parts natural rubber, 25 parts styrene-butadiene rubber, 15 parts butadiene rubber, 40 parts 375 carbon black, 20 parts naphthenic oil, 5 parts zinc oxide, 1 part stearic acid, 1 part accelerator CZ, 1 part antioxidant 4010NA, 1 part silane coupling agent KH550, and 1 part sulfur; the raw materials of the porous layer, by weight parts, are: 100 parts isoprene rubber, 40 parts 375 carbon black, 80 parts naphthenic oil, 10 parts foaming agent AC, 5 parts zinc oxide, 5 parts stearic acid, 0.5 parts accelerator CZ, and 0.8 parts sulfur.

[0067] The preparation method of splicing material for cattle beds is as follows: The raw materials for the wear-resistant layer undergo a first mixing process at a temperature of 70°C. In an internal mixer, natural rubber, styrene-butadiene rubber, and butadiene rubber are added and the mixture is then subjected to a first mixing process for 3 minutes. Next, carbon black and naphthenic oil are added and the mixture is subjected to a second mixing process for 5 minutes. Then, zinc oxide, stearic acid, accelerator, antioxidant, and silane coupling agent are added and the mixture is subjected to a third mixing process for 1 minute. Finally, sulfur is added and the mixture is subjected to a fourth mixing process for 2 minutes. The mixture is then discharged, the rubber is sheeted, cooled, and neatly stacked to obtain the wear-resistant layer sheet. Next, a first calendering process is performed: In an open mixing mill at a temperature of 70°C, the wear-resistant layer sheet is added and the mixture undergoes a first re-mixing process. After this re-mixing, the mixture is calendered for the first time in a calender at a temperature of 90°C to a thickness of 5.0 mm. After calendering, the sheet is wound up by a winding machine and spread out to obtain the wear-resistant layer calendered sheet. The raw materials for the porous layer undergo a second mixing process at a temperature of 50°C. In an internal mixer, isoprene rubber is added and the mixture is first mixed for 2 minutes. Then, carbon black, naphthenic oil, and a foaming agent are added and the mixture is second mixed for 5 minutes. Next, zinc oxide, stearic acid, and an accelerator are added and the mixture is third mixed for 1 minute. Finally, sulfur is added and the mixture is fourth mixed for 2 minutes. The mixture is then discharged, the rubber is sheeted, cooled, and neatly stacked to obtain the porous layer sheet. Next, a second calendering process is performed: In an open mixing mill at 50°C, the porous layer sheet is added and the mixture is second-re-mixed. After re-mixing, the mixture is second-calendered in a calender at 60°C with a calender thickness of 10.0 mm. After calendering, the sheet is wound up and spread out to obtain the porous layer calendered sheet. Cover the porous calendered sheet (1.1m wide, 1.7m long) with the wear-resistant calendered sheet (1.21m wide, 1.9m long). Start placing the wear-resistant calendered sheet from one end, leaving the same width or length on both sides (e.g., left, right, top, bottom) of the porous calendered sheet. The width is 0.055m and the length is 0.1m. Fold the excess wear-resistant calendered sheet behind the porous calendered sheet and wrap the sides of the porous calendered sheet with the edge of the wear-resistant calendered sheet to obtain the composite. The composite is vulcanized by laying a layer of padding cloth on it, rolling it up, and placing it in a flat vulcanizing machine. The mold cover plate is engraved with the fabric texture, with the perforated layer on the bottom and the wear-resistant layer on top. The vulcanizing machine mold specifications are: depth 25mm, width 1.25m, length 1.9m. The vulcanization temperature is 150℃, the pressure is 8MPa, and the time is 30min. After demolding, it is allowed to cool naturally to obtain the splicing material for cattle beds. The product specifications are: thickness 25mm, width 1.22m, length 1.83m.

[0068] Application Example 1 The cattle bed is assembled from the cattle bed of Example 1 using splicing materials.

[0069] The physical properties of the wear-resistant layer and porous layer of the splicing material for cattle beds prepared in Example 1 were tested. The testing standards for each physical property were as follows: hardness (Shore A) type Shore hardness GB / T531.1-2008 Shore hardness tester method; elongation at break and tensile strength GB / T528; density GB / T533-2008; roller wear GB / T9867-1998.

[0070] The test results for the wear-resistant layer are as follows: hardness: 65 degrees, tensile strength: 21 MPa, elongation at break: 510%, density: 1.2 kg / m³. 3 Roller wear: 92mm 3 .

[0071] The test results for the porous layer are as follows: hardness: 40 degrees, tensile strength: 4.5 MPa, elongation at break: 120%, density: 0.5 kg / m³. 3 .

[0072] The test results above show that the splicing material for cattle beds provided by this invention has a soft and comfortable porous layer and a durable wear-resistant layer. Therefore, when manufacturing cattle beds, the splicing material can be directly spliced ​​together without the need for additional rubber sheets, simplifying construction. Damaged sections of the cattle bed can be replaced only, greatly reducing maintenance costs.

[0073] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A splicing material for cattle beds, comprising a wear-resistant layer and a porous layer; the wear-resistant layer is wear-resistant vulcanized rubber; the porous layer is vulcanized rubber with a closed-cell structure; the upper surface and sides of the porous layer are completely covered by the wear-resistant layer; the porous layer and the wear-resistant layer are bonded together by co-vulcanization.

2. The splicing material for cattle beds according to claim 1, characterized in that, The raw materials of the wear-resistant layer, by weight, include: 60-80 parts of natural rubber, 25-40 parts of styrene-butadiene rubber, 15-30 parts of butadiene rubber, 40-60 parts of carbon black, 20-35 parts of naphthenic oil, 5-10 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of accelerator, 1-3 parts of antioxidant, 1-3 parts of silane coupling agent, and 1-3 parts of sulfur.

3. The splicing material for cattle beds according to claim 1, characterized in that, The raw materials of the porous layer, by weight, include: 100-120 parts isoprene rubber, 40-60 parts carbon black, 80-100 parts naphthenic oil, 10-25 parts foaming agent, 5-10 parts zinc oxide, 5-10 parts stearic acid, 0.5-1.5 parts accelerator, and 0.8-1.6 parts sulfur.

4. The splicing material for cattle beds according to claim 2 or 3, characterized in that, The accelerator is CZ.

5. A method for preparing the splicing material for cattle beds according to any one of claims 1 to 4, comprising the following steps: The raw materials for the wear-resistant layer are first mixed and then first calendered to obtain a wear-resistant layer calendered sheet. The raw material for the porous layer is subjected to a second mixing and a second calendering to obtain a porous layer calendered sheet. The wear-resistant calendered sheet is placed on top of the perforated calendered sheet, and the edges of the wear-resistant calendered sheet are used to wrap around the sides of the perforated calendered sheet to obtain a composite. The composite is vulcanized to obtain a splicing material for cattle beds.

6. The preparation method according to claim 5, characterized in that, The temperature of the first mixing is 65~75℃; the temperature of the first rolling is 85~95℃.

7. The preparation method according to claim 5, characterized in that, The temperature of the second mixing is 45~55℃; the temperature of the second rolling is 55~65℃.

8. The preparation method according to claim 5, characterized in that, The thickness of the wear-resistant calendered sheet is 4.9~5.1mm; the thickness of the porous calendered sheet is 9.9~10.1mm.

9. The preparation method according to claim 5, characterized in that, The vulcanization temperature is 145~155℃, the pressure is 7.8~8.2MPa, and the time is 28~32min.

10. A modular cattle bed, constructed by splicing cattle beds together with interlocking materials, characterized in that, The splicing material for cattle beds is the splicing material for cattle beds according to any one of claims 1 to 4 or the splicing material for cattle beds prepared by the preparation method according to any one of claims 5 to 9.