CN114573888B

CN114573888B - Coiled material and preparation method thereof, prefabricated coiled material and processing method thereof, assembled coiled material and application

Info

Publication number: CN114573888B
Application number: CN202210224523.9A
Authority: CN
Inventors: 蔡陈敏; 陈晨
Original assignee: Guangzhou Tongxin Sports Co ltd
Current assignee: Guangzhou Tongxin Sports Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2024-01-12
Anticipated expiration: 2042-03-07
Also published as: CN114573888A

Abstract

The invention discloses a coiled material and a preparation method thereof, a prefabricated coiled material and a processing method thereof, an assembled coiled material and an application, wherein the coiled material comprises at least one layer of coiled material, and the coiled material comprises the following raw materials in parts by weight: 15-120 parts of first rubber, 5-60 parts of rubber lubricant, 30-100 parts of filler and 1-25 parts of auxiliary agent, wherein the first rubber is selected from at least one of nitrile rubber, styrene-butadiene rubber and natural rubber, and the rubber lubricant is selected from at least one of hydroxyl silicone oil, fatty alcohol polyoxyethylene ether and polyether polyol with the molecular weight of 4000-8000. The coiled material comprises at least one layer of coiled material, and the flexibility of the coiled material can be increased and the internal stress of the coiled material can be reduced through the compounding between the first rubber and the rubber lubricant and the filling of the filler. Meanwhile, the coiled material is more suitable for carving, and the phenomenon of 'burrs' can not occur after carving, so that the splicing is more facilitated.

Description

Coiled material and preparation method thereof, prefabricated coiled material and processing method thereof, assembled coiled material and application

Technical Field

The invention relates to the field of runway structures, in particular to a coiled material and a preparation method thereof, a prefabricated coiled material and a processing method thereof, an assembled coiled material and application.

Background

Traditional synthetic material runways are mainly divided into polyurethane plastic runways and prefabricated rubber runways. The materials of the polyurethane plastic track are basically materials such as polyurethane glue (generally AB double-group glue), filling colloidal particles and surface-layer ethylene propylene diene monomer particles, and the like, after the polyurethane glue and the filling colloidal particles are uniformly mixed by adopting a casting-in-place process, the materials are directly cast on an asphalt concrete foundation layer, and the surface-layer ethylene propylene diene monomer particles are scattered as an anti-skid layer before the rubber is solidified. The polyurethane glue is glue containing urethane groups and isocyanate groups in molecular chains, has very high reactivity due to the fact that the polyurethane glue contains the isocyanate groups and the urethane groups with strong polarity, can be cured at room temperature, is mixed in proportion on a construction site, is added with colloidal particles and other auxiliary materials, is stirred into a sticky state, and is paved on an asphalt/cement basis, so that chemical reaction curing molding is carried out between the raw materials. If the weighing of each component material is inaccurate in the construction process, the chemical reaction degree of the material can be influenced, and the physical property and the chemical property of the paved sports ground surface layer are unqualified; in addition, during the laying process, when the material is not cured to a certain extent, once it rains, the layer of polyurethane material is highly likely to be scrapped. Furthermore, since the organic isocyanate compound contains a cyanate-labile group (NCO, structural formula-n=c=o) of a highly unsaturated bond, the chemical properties are very active. In a period of time after the polyurethane elastomer product is synthesized, trace unreacted NCO still exists in the system, and in a solid state, the reaction still needs a long time to be completed. As a result, a small amount of free NCO groups are present in the polyurethane material. The building is a high-volatility period within 3 years, and toxic gas can be accelerated to be released in hot weather or under ultraviolet irradiation, so that the physical health of a sporter can be jeopardized.

The prefabricated rubber runway is an environment-friendly rubber coiled material with a double-layer integrated structure, can be prefabricated into rubber coiled materials with certain thickness, width and length or block finished rubber coiled materials according to the design of requirements in factories in advance, and is transported to a construction site to be adhered and laid on asphalt/cement in an area to be paved. The construction process of the prefabricated rubber runway (or court) is as follows: firstly, an adhesive layer with a certain thickness (about 1 mm) is coated and scraped on a region to be paved, and then prefabricated rubber coiled materials or sheets are sequentially paved on the adhesive layer in a roll-to-roll mode. The joints between the coiled materials (or sheets) are flat, tight and seamless, cannot have height difference, and the joints are filled with adhesive, so that the separation and foaming of the runway surface layer caused by water entering from the joints are avoided. It is therefore also necessary to flatten the transverse and longitudinal seams between rolls (or sheets) with weights during laying, and to remove the weights after curing of the adhesive has been completed (about 6 hours or more).

The design standard of the inclination gradient of a standard 400-meter runway track field is generally 0.8% of the runway, and the design standard is not higher than 1.0% and not lower than 0.5%; 0.4% or more of the semicircular area is not less than 0.3%; the auxiliary area is about 0.5%. Meanwhile, the international society of field and track association has the requirement on the flatness of the foundation that 3 meters of aluminum alloy straightedge is used as a standard, 3 meters of distance must not have uneven surface exceeding 3mm, and the compactness reaches more than 95%. It can be seen that the requirements for the flatness, inclination and minimum thickness of the surface of the area to be paved are very strict for runway paving where the area to be paved is cement or asphalt. At the same time, the last layer is necessary to be corrected in order to meet the requirement of error range. Therefore, whether the existing polyurethane plastic track or the prefabricated rubber track is paved, the technical requirements and the paving requirements of constructors are high, the constructors have high familiarity on the physicochemical properties of chemical products, but the paving still takes a lot of time, and the health of the sportsmen can be possibly endangered after a certain time is reached after the paving is finished due to the fact that the raw materials have certain toxicity; the latter must be fine to handle the problem of seam between coiled material and the coiled material, splice must be in order, can't assemble whole runway simultaneously, and whole assembly process is consuming time and labor. In addition, the requirements on climate in the paving construction are strict, for example, construction cannot be performed in rainy days, and construction cannot be performed even at too low temperature, so that the construction period is often prolonged.

Disclosure of Invention

Based on the above, it is necessary to provide a coiled material which is laid without being limited by weather and is simple and easy to construct, a preparation method, a prefabricated coiled material, a processing method, an assembled coiled material and an application.

The invention provides a coiled material, which comprises at least one layer of coiled material;

the coil stock is prepared from the following raw materials in parts by weight:

wherein, the auxiliary agent comprises 0.1 to 6 parts of foaming agent, 0.1 to 5 parts of vulcanizing agent and 0.1 to 10 parts of accelerator by weight of the raw materials of the coil stock; the foaming agent is at least one selected from azodicarbonamide, azoisobutyronitrile and N, N' -dinitroso pentamethylene tetramine; the accelerator is selected from at least one of zinc dimethyl dithiocarbamate, 2' -dithiodibenzothiazole and tetramethylthiuram disulfide;

the filler comprises 5-35 parts of inorganic filler and 5-35 parts of organic filler, wherein the inorganic filler is at least one selected from kaolin, nano calcium carbonate and white carbon black; the organic filler is selected from at least one of natural rubber powder and natural rubber sponge powder;

the first rubber is at least one of nitrile rubber, styrene-butadiene rubber and natural rubber, and the rubber lubricant is at least one of hydroxyl silicone oil, fatty alcohol polyoxyethylene ether and polyether polyol with molecular weight of 4000-8000.

In one embodiment, the raw materials of the coil stock further comprise 1 to 15 parts of flame retardant, 0.1 to 3 parts of anti-aging agent and 0.1 to 6 parts of colorant.

The invention also provides a preparation method of the coiled material, which comprises the following steps:

s110: preparing materials according to the raw materials of the coiled materials in the coiled materials;

s120: mixing the first rubber, the rubber lubricant and the filler and kneading for 5 to 30 minutes to prepare a preform;

s130: calendaring the prefabricated material to prepare prefabricated sizing material;

s140: mixing the auxiliary agent with the pre-prepared sizing material and kneading for 1-5 minutes to prepare the sizing material;

s150: calendering the sizing material.

Furthermore, the invention also provides a prefabricated coiled material, wherein the edge of at least one side of the coiled material is provided with a convex part and a concave part which are used for connecting the clamping structure at intervals.

Still further, the present invention also provides a method for processing the prefabricated coiled material, which comprises the following steps:

cutting the coiled material by using a cutting device, wherein the cutting device comprises an engraving device, an operating platform and a conveying device, the operating platform comprises a first adsorption hole arranged on the surface of the operating platform, the operating platform is provided with an adsorption device, the engraving device comprises a engraving knife,

The conveying device conveys the coiled material to the operation table, the coiled material is fixedly adsorbed to the operation table through the air suction device and the first adsorption hole, the coiled material fixed to the operation table is cut by the engraving knife, and a convex part and a concave part which are used for being connected in a clamping structure are arranged at intervals at least on one side connecting edge of the coiled material.

In one embodiment, the graver comprises a water knife and a tungsten steel knife.

In one embodiment, the graver is a water knife, and the coil stock comprises the following raw materials in parts by weight:

the engraving knife is a tungsten steel knife, and the coil stock comprises the following raw materials in parts by weight:

in one embodiment, the cutting device further comprises a conveyor belt on the console connected to the conveyor.

The invention provides an assembled coiled material, which comprises a plurality of prefabricated coiled materials which are sequentially connected, wherein two adjacent prefabricated coiled materials are connected through a clamping structure, the connecting edge of one prefabricated coiled material is provided with a convex part and a concave part which are used for being connected through the clamping structure at intervals, and the connecting edge of the other prefabricated coiled material is provided with a concave part and a convex part which are used for being connected through the clamping structure at intervals.

The invention also provides an application of the coiled material or the prefabricated coiled material or the spliced coiled material in the runway preparation.

The coiled material comprises at least one layer of coiled material, wherein the flexibility of the coiled material can be increased by compounding the first rubber with the rubber lubricant and filling the filler, the internal stress of the coiled material is reduced, meanwhile, the coiled material is more suitable for engraving, the phenomenon of 'burr' can not occur after engraving, the tangent plane and the edge are smooth, and the subsequent assembly is facilitated. In addition, the coiled material does not need to be further processed during installation like a traditional polyurethane plastic track and a prefabricated rubber track, and the coiled material is laid in a to-be-laid area as a track material without being limited by weather, so that the construction is simple and easy.

Further, the traditional assembled runway surface layer materials are mostly rigid, when the annular runway is paved on sites with curves, the assembled runway surface layer materials can only be processed into arcs to finish assembly, and different sites have different radians, so that products can be produced according to the different radians, the production efficiency is low, and the types of the products are redundant. The coiled material has certain tension, can realize 5-15 DEG bending, changes the bending degree according to the condition of a site foundation, and has stronger adaptability.

Drawings

FIG. 1 shows a cutting device for cutting a coiled material;

FIG. 2 is a preformed coil provided by the present invention;

FIG. 3 is a top view of an assembled web material according to the present invention, illustrating two types of engagement structures;

FIG. 4 is a graph showing the tension effect of the spliced coiled material provided in embodiment 1 of the present invention;

fig. 5 is an effect diagram of the assembled coiled material provided in embodiment 2 of the present invention, (a) an immediate assembly effect, (b) an assembly effect diagram after 6 months;

FIG. 6 is a graph showing the effects of the spliced coiled material provided in comparative example 1 of the present invention, (a) an immediate splicing effect, (b) a splicing effect after 6 months;

description of the drawings:

10: cutting device, 110: engraving device, 111: first track, 112: second track, 113: carving knife, 120: operation panel, 121: first adsorption hole, 122: getter device, 130: conveying device, 131: second adsorption holes, 132: conveyor belt, 20: splicing coiled materials, 201: prefabricating coiled materials.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. In the description of the present invention, the meaning of "several" means at least one, such as one, two, etc., unless specifically defined otherwise.

The words "preferably," "more preferably," and the like in the present invention refer to embodiments of the invention that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.

When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values for the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein.

In describing positional relationships, when an element such as a layer, film or substrate is referred to as being "on" another film layer, it can be directly on the other film layer or intervening film layers may also be present, unless otherwise indicated. Further, when a layer is referred to as being "under" another layer, it can be directly under, or one or more intervening layers may also be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

Where the terms "comprising," "having," and "including" are used herein, it is intended to cover a non-exclusive inclusion, unless a specifically defined term is used, such as "consisting of … … only," etc., another component may be added.

Unless mentioned to the contrary, singular terms may include plural and are not to be construed as being one in number.

Therefore, one of the core inventions of the present invention is to provide a coiled material, which comprises at least one layer of coiled material, wherein the coiled material is prepared from the following raw materials in parts by weight:

wherein the first rubber is at least one of nitrile rubber, styrene-butadiene rubber and natural rubber, and the rubber lubricant is at least one of hydroxyl silicone oil, fatty alcohol polyoxyethylene ether and polyether polyol with the molecular weight of 4000-8000.

The coiled material comprises at least one layer of coiled material, and the flexibility of the coiled material can be increased and the internal stress of the coiled material can be reduced through the compounding between the first rubber and the rubber lubricant and the filling of the filler. Meanwhile, the coiled material is more suitable for carving, the phenomenon of 'burrs' can not occur after carving, the section is smoother, and the splicing is more facilitated. In addition, the coiled material does not need to be further processed during installation like a traditional polyurethane plastic track and a prefabricated rubber track, and the coiled material is paved as a track material without being limited by weather and is simple and easy to construct.

In a specific example, the auxiliary agent comprises 0.1 to 6 parts of foaming agent, 0.1 to 5 parts of vulcanizing agent and 0.1 to 10 parts of accelerator by weight of the raw materials of the coil stock.

In a specific example, the foaming agent is selected from at least one of azodicarbonamide, azoisobutyronitrile, and N, N' -dinitroso pentamethylene tetramine.

In one specific example, the vulcanizing agent may be, but is not limited to, sulfur.

In a specific example, the accelerator is selected from at least one of zinc dimethyldithiocarbamate (accelerator PZ), 2' -dithiodibenzothiazyl (accelerator DM), and tetramethylthiuram disulfide (accelerator TMTD).

In a specific example, the filler includes 5 to 65 parts of an inorganic filler and 5 to 35 parts of an organic filler, based on the weight parts of the raw materials of the roll.

In a specific example, the inorganic filler is selected from at least one of kaolin, nano calcium carbonate, and white carbon black.

Further, the particle diameter of the inorganic filler is 25nm to 100nm, and preferably the particle diameter of the inorganic filler is 25nm to 80nm.

In a specific example, the organic filler is selected from at least one of natural rubber powder and natural rubber sponge powder.

It will be appreciated that the natural rubber sponge particles are particles made of foamed natural rubber and are porous structural materials having cells throughout the material.

In a specific example, the raw materials of the coil stock further include 1 to 15 parts of a flame retardant.

In a specific example, the flame retardant is selected from at least one of halogen-free flame retardant, decabromodiphenylethane, chlorinated paraffin, and methyl pentachlorostearate.

Preferably, the halogen-free flame retardant is aluminum hydroxide.

The coil stock is prepared from the following raw materials in parts by weight:

the fire retardant is further added into the raw materials, so that the temperature of the prepared coiled material is not higher than 100 ℃ during carving, and the coiled material which has higher precision, is not damaged by carving surface materials and is more beneficial to splicing is conveniently produced.

Further, the raw materials of the coil stock also comprise 0.1 to 3 parts of anti-aging agent and 0.1 to 6 parts of colorant.

It will be appreciated that the colorant may be selected according to the actual coil color requirements and may specifically be, but is not limited to, at least one selected from the group consisting of iron red, blue, phthalocyanine green, and carbon black

Further, the antioxidant is at least one selected from the group consisting of N-isopropyl-N ' -phenyl-p-phenylenediamine, 2' -methylenebis (4-methyl-6-t-butylphenol) and 4,4' -dioctyl-diphenylamine.

It can be understood that when the coiled material is two layers, the first layer of coiled material comprises the following raw materials in parts by weight:

the second layer of coil stock comprises the following raw materials in parts by weight:

preferably, when the coiled material is two layers, the first layer of coiled material comprises the following raw materials in parts by weight:

it will be appreciated that. When the first layer of coil stock is paved, the first layer of coil stock is arranged on the second layer of coil stock, and the second layer of coil stock is contacted with a paving plane.

The invention further provides a preparation method of the coiled material, which comprises the following steps S110 to S150.

Step S110: the raw materials of the coil stock are prepared.

Step S120: the first rubber, the rubber lubricant and the filler are mixed and kneaded for 5 to 30 minutes to prepare a preform.

In a specific example, the above raw materials may be, but are not limited to, kneaded in a rubber internal mixer, wherein the temperature of kneading is not more than 110 ℃.

Further, the above mixed raw materials include a first rubber, a rubber lubricant, a filler, an anti-aging agent, and a colorant.

Step S130: and calendaring the prefabricated material to prepare the prefabricated sizing material.

It will be appreciated that the above-described pre-form is fed into a calendering apparatus, which may be, but is not limited to, an open mill, to calender and cool it to below 60 ℃ to produce the pre-form.

Step S140: mixing the auxiliary agent and the preformed sizing material and kneading for 1-5 minutes to prepare the sizing material;

in one specific example, the vulcanizing agent, the accelerator, the foaming agent and the pre-mix are mixed and the above mixture is fed to a kneader, which may be, but is not limited to, a rubber internal mixer, where the kneading temperature is not more than 110 ℃.

Step S150: and (5) calendaring the sizing material.

It will be appreciated that the preform described above is fed into a calendering apparatus which may be, but is not limited to, an open mill and cooled to below 60 ℃.

Further, the calender may be selected from, but not limited to, a sheeter calender, a wipe calender, a general purpose calender, a profiling calender, or a wire calender, depending on the process requirements.

In a specific example, step S160 is further included: vulcanizing the above-mentioned rolled rubber material.

And (3) placing the rolled coiled material into a vulcanizing device for vulcanizing treatment and heating to 120-180 ℃.

Further, the coiled material has a double-layer structure, and two coiled materials which are subjected to the step S50 are vulcanized.

It will be appreciated that the coil may be cooled by, but not limited to, air cooling in an air-cooled tunnel after the vulcanization process to reduce the temperature of the colloidal particles in the coil to below 30 ℃.

As shown in fig. 2, the present invention further provides a prefabricated coiled material 201, wherein a convex portion and a concave portion for connecting the fastening structure are provided at intervals on at least one side edge of the coiled material.

Further, the edge of at least one side of the coiled material is continuously provided with a convex part and a concave part which are used for connecting the clamping structure at intervals. It will be appreciated that the continuous spacing described above is such that there are spaced projections and recesses from one side of the web. Preferably, the convex portion and the concave portion are matched.

The present invention also provides a processing method of the prefabricated coiled material 201, as shown in fig. 1, the cutting device 10 is composed of an engraving device 110, an operation table 120 and a conveying device 130, and includes the following steps:

Step S210: cutting the web by means of the cutting device 10, the cutting device 10 comprises an engraving device 110, an operation table 120 and a conveying device 130, the operation table 120 comprises a first adsorption hole 121 arranged on the surface of the operation table 120, the operation table 120 is provided with an adsorption device 122, the engraving device 110 comprises an engraving knife 113,

the conveying device 130 conveys the coiled material to the operation table 120, and the coiled material is adsorbed and fixed to the operation table 120 through the air suction device 122 and the first adsorption hole 121, the coiled material fixed to the operation table 120 is cut by using the carving knife 113, and at least one side connecting edge of the coiled material is provided with convex parts which are arranged at intervals continuously and can be connected with the clamping structure and concave parts matched with the convex parts.

In the above processing method of the prefabricated coiled material 201, the edge of the coiled material is cut to form the spliced coiled material which can be connected in a clamping structure, the cutting device 10 can cut the coiled material to be cut in a controllable moving range through the conveying device 130 which is continuously conveyed and the air suction device 122 on the operating platform 120, and the coiled material after cutting is conveyed all the time by the conveying device 130, so that the coiled material with unlimited length can be obtained.

In a specific example, the step S210 is preceded by a step of performing vibration stabilization treatment on the coiled material.

It will be appreciated that the vibration stabilization process described above allows the web to be adjusted prior to entering the cutting apparatus 10 for cutting, and the adjustment is not limited to adjusting the flatness or center of gravity of the web to a stable state.

Further, the device for performing vibration stabilization treatment on the coiled material comprises a vibration bed, an adjustable limiter and a coiled material conveying device. The coiled material conveying device conveys the prepared coiled material to adjust the required width through the limiting device, accurate limiting is achieved, the situation that small deviation generated in the subsequent cutting process causes low precision of buckling between spliced coiled materials, incomplete splicing or large gaps and the like is avoided, and the fact that the positions of each section of coiled material conveyed into the cutting device 10 are identical is guaranteed so as to ensure the accurate cutting rate. And then the coiled material after limiting is conveyed to a vibrating bed, the coiled material state tends to be flat through vibration, the gravity center is adjusted to be consistent, and the coiled material enters the cutting device 10 for cutting.

In one specific example, the cutting apparatus 10 further includes a conveyor belt coupled to the conveyor 130 on the console 120.

In a specific example, the conveyor belt is provided with a second adsorption hole 131.

The conveyor belt can be tightly contacted with the operation table 120 through the second adsorption hole 131 and the air suction device 122 of the operation table 120 to avoid displacement in the cutting process, the coiled material can be fixed under the cooperation of the conveyor belt and the conveyor device 130, the conveying after cutting and the cutting are realized, and the preparation of the coiled material with unlimited length limitation is suitable for paving runways with various sizes.

Further, the positions of the second adsorption holes 131 and the positions of the first adsorption holes 121 do not overlap or overlap each other, and preferably the positions of the second adsorption holes 131 and the first adsorption holes 121 are alternately arranged.

In a specific example, the engraving device 110 further includes a position adjustment mechanism provided on the operation table 120, the engraving blade 113 is connected to the operation table 120 through the position adjustment mechanism, and the engraving blade 113 is moved in the horizontal and vertical directions through the position adjustment mechanism.

Specifically, the position adjusting mechanism includes a first rail 111 provided perpendicular to the operation table 120 and a second rail 112 provided parallel to the operation table 120, the graver 113 is provided on the first rail 111, the second rail 112 is provided on but not fixed to the operation table 120, and the second rail 112 is movable along the coil conveying direction of the operation table 120.

It will be appreciated that the first rail 111 controls the longitudinal movement of the burin and the second rail 112 controls the lateral movement of the burin. The design of the guide rail can ensure that the nicking tool and the coiled material keep relative displacement according to the requirement, and the relative position of the coiled material and the nicking tool is kept in the cutting process to realize engraving.

It will be appreciated that the two ends of the console 120 are provided with slide rails in the vertical direction, so that the console 120 can be moved left and right to move up and down by the conveyor 132.

In one embodiment, the web is relatively stationary on the table 120, the first and second rails 111, 112 are moved to cut the edge of the web vertically and horizontally, and the cut-out conveyor advances the cut-out portion and positions it for the next cut.

In one embodiment, the graver 113 is relatively stationary on the table 120, and the cutting of the edges of the web is accomplished by lateral and longitudinal movement of the conveyor 130.

In one embodiment, the nicking tool 113 is moved parallel to the console 120 using the second rail 112 and the cutting of the edge of the web is accomplished using the longitudinal movement of the conveyor 130. The cutting device 10 is only one of the structures, and the structure of the cutting device 10 may be changed according to actual needs to cut a desired web material.

After being cut, the coiled material is directly conveyed to a winding device, and the processing of the spliced coiled material is completed after winding and packaging.

The coiled materials subjected to cutting can be subjected to single coiled material size and structure planning according to reasonable design, the clamping structure connection among different coiled materials is realized during construction, the coiled materials are effectively connected, and constructors can complete splicing among the coiled materials without carrying out excessive treatment on the coiled materials.

In one specific example, the graver 113 includes a water knife and a tungsten steel knife.

In a specific example, the graver 113 is a water jet, and the web material comprises the following raw materials in parts by weight:

in a specific example, the graver 113 is a tungsten steel blade, and the coiled material comprises the following raw materials in parts by weight:

it can be understood that the tungsten steel knife generates high-speed friction on the object to be cut in the cutting process, and friction generates a large amount of heat to cause the temperature of the cutting position to be higher than 250 ℃, so that the material of the object to be cut is obviously influenced, and the surface is sticky due to the fact that the rubber material is heated and vulcanized when the coiled material is cut, so that the accuracy of the cutting surface is influenced. Therefore, part of flame retardant is further added into the raw materials of the coil stock, so that the temperature rise of the cutting surface in the cutting process is avoided, and the subsequent cooling treatment is not needed. The problem of surface tackiness caused by heating and vulcanizing the rubber material is fundamentally solved, and the accuracy of a cutting surface can be improved. According to the processing method of the prefabricated coiled material, the edge of the coiled material is cut to form the spliced coiled material which can be connected in a clamping structure, the coiled material to be cut can be cut in a controllable moving range by the cutting device through the conveying device capable of continuously conveying the coiled material and the air suction device on the operating platform, corresponding coiled material fabric components are further designed according to different materials and using conditions of the nicking tool, the coiled material after cutting is conveyed by the conveying device, and the coiled material with unlimited length can be obtained while continuous cutting and efficient cutting are realized.

Further, from coil preparation to coil cutting, continuous treatment can be performed, a large number of unnecessary intermediate links are reduced, and production efficiency is greatly improved.

Still further, the present invention further provides an assembled coiled material 20, which comprises a plurality of prefabricated coiled materials 201 connected in sequence, wherein two adjacent prefabricated coiled materials 201 are connected through a clamping structure, a convex part and a concave part for connecting the clamping structure are arranged at intervals on the connecting edge of one prefabricated coiled material 201, and a concave part and a convex part for connecting the clamping structure are arranged at intervals on the connecting edge of the other prefabricated coiled material 201.

And connecting different cut coiled material sheets through convex and concave clamping structures at the edges.

Preferably, the T-shaped groove or the dovetail groove of the convex part is a T-shaped groove or a dovetail groove, and the concave part forming the clamping structure with the convex part is a T-shaped groove or a dovetail groove, and the clamping formed by the T-shaped groove or the dovetail groove is the basis for connecting the prefabricated coiled materials through the clamping structure.

It will be appreciated that the "T" shaped groove or dovetail groove described above is merely exemplary of one type of snap-fit connection, and that in practice the pre-formed webs 201 may be, but are not limited to, formed with other shapes of male and female portions to form corresponding snap-fit connections that meet the mechanical performance criteria of the final assembled web 20.

As shown in fig. 3, the connection relationship of the clamping structures between different prefabricated coiled materials 201 can be that the convex part and the concave part are in a dovetail groove structure to be connected in a clamping structure as shown in fig. 2 (a), the convex part and the concave part are in a T-shaped structure to be connected in a clamping structure as shown in fig. 2 (b), a plurality of contact surfaces are formed at the connection part of the clamping structures between different coiled materials, the dovetail groove structure is three contact surfaces, and the T-shaped structure has seven contact surfaces. The friction force at the joint of the clamping structures between the coiled materials is increased, so that the coiled materials are overlapped to realize close lamination, and the spliced coiled materials are difficult to separate. And the edge of the joint of the clamping structure has a plurality of contact surfaces, so that the joint is uniformly stressed, and the phenomena of warping and deformation are reduced, so that the joint of the clamping structure of the assembled coiled material cannot displace due to the occurrence of external force, and the motion safety of a user is ensured.

In one specific example, the plurality of preformed coils are distributed in a plurality of rows and columns.

Further, the traditional assembled sports surface layer materials are mostly rigid, when places with curves such as annular runways are paved, the sports surface layer materials can only be processed into arcs to complete assembly, and different places have different radians, so that products can be produced according to different radians, the production efficiency is low, and the types of the products are redundant. As shown in fig. 3, the coiled material has a certain tension, can realize bending of 5-15 degrees, changes the bending degree according to the condition of a site foundation, and has stronger adaptability. The assembled coiled materials are connected through the buckle clamping structures of a plurality of contact surfaces among different coiled materials, so that the tight connection of coiled material picking is realized, the service life of the coiled materials is prolonged, and the movement safety of a user is protected.

In addition, the invention also provides application of the coiled material, the prefabricated coiled material or the spliced coiled material in preparing runway materials.

It will be appreciated that runways may refer to, but are not limited to, standard runways of various schools and professional stadiums of all classes, typically 400 meters in circumference and 36.5 meters in radius (36 meters and 37.898 meters, respectively), and non-standard runways, typically 200 meters or 300 meters in circumference, varying in circumference and radius depending on playground area, shape and size. The runway can also be a basketball court, a volleyball court, a badminton court or a place where the runway is required to be paved. Because the coiled material provided by the invention has certain flexibility and tension, the coiled material can be produced in a straight strip shape, and can be directly bent into a corresponding radian to finish splicing when being actually paved, for example, a runway with a corresponding radian can be directly finished when a curve is paved on site, so that efficient splicing is realized.

Specific examples are provided below to illustrate the coil stock of the present invention and the method of making it in further detail. All materials are commercially available unless otherwise specified.

The hydroxy silicone oil used in the following examples was purchased from Shandong energy polymerization chemical Co., ltd., and the 6000 molecular weight polyether polyol was purchased from Shandong Katsumadai Wanhua chemical.

Example 1

The embodiment provides a single-layer coiled material, which comprises the following raw materials in parts by weight:

the preparation method of the coil stock specifically comprises the following steps:

preparing raw materials in corresponding parts by weight, mixing nitrile rubber, styrene-butadiene rubber, nano calcium carbonate, natural rubber sponge particles, polyether polyol, 2' -methylenebis (4-methyl-6-tertiary butyl phenol) and carbon black, putting the mixture into a rubber internal mixer, kneading the mixture for 30min at the temperature of less than or equal to 110 ℃, putting the mixture into an open mill, rolling the mixture into sheets, and cooling the sheets to below 60 ℃ to prepare a preformed rubber material; mixing the preformed sizing material, sulfur, an accelerator and a foaming agent, putting into a rubber internal mixer, kneading for 3min, then feeding into a rolling device for continuous rolling, and vulcanizing the rolled sizing material at 135 ℃ to prepare the coiled material.

The coiled material provided in the embodiment 1 is conveyed to the cutting device by limiting the width of the coiled material according to the preset width after the center of gravity is stabilized by the vibration device, the coiled material is fixed on the operating platform by the first adsorption hole, the second adsorption hole and the air suction device along with the conveying belt and the conveying device in the cutting device, and the figure (model) of the coiled material needed to be carved by the cutting device is uploaded to the control computer of the cutting device in a numerical control mode, and the coiled material is carved by utilizing a water knife. And cooling, rolling and packaging after carving is finished, thus obtaining the prefabricated coiled material.

Example 2

The embodiment provides a double-layer coiled material, which comprises a first coiled material layer and a second coiled material layer, wherein the first coiled material layer is positioned on the second coiled material layer, the second coiled material layer is contacted with a region to be paved,

wherein the first coiled material comprises the following raw materials in parts by weight:

the second coiled material comprises the following raw materials in parts by weight:

the preparation method of the coil stock specifically comprises the following steps: preparing raw materials in corresponding parts by weight, and respectively preparing a first coiled material layer and a second coiled material layer;

the preparation method of the first coiled material specifically comprises the following steps: mixing nitrile rubber, styrene-butadiene rubber, nano calcium carbonate, natural rubber powder, hydroxyl silicone oil, polyether polyol, fatty alcohol polyoxyethylene ether, 2' -methylenebis (4-methyl-6-tertiary butyl phenol) and phthalocyanine green, putting the mixture into a rubber internal mixer, kneading the mixture for 20 minutes at the temperature of less than or equal to 110 ℃, putting the mixture into an open mill, rolling the mixture into sheets, and cooling the sheets to below 60 ℃ to prepare a preformed rubber material; mixing the pre-sizing material, sulfur, an accelerator and a foaming agent, putting into a rubber internal mixer, kneading for 3min, and then feeding into a rolling device for continuous rolling to prepare the coiled material.

The preparation method of the second coiled material specifically comprises the following steps: mixing styrene-butadiene rubber, nano calcium carbonate, natural sponge rubber powder particles and hydroxy silicone oil, then putting the mixture into a rubber internal mixer, kneading the mixture for 20 minutes at the temperature of less than or equal to 110 ℃, putting the mixture into an open mill, rolling the mixture into sheets, and cooling the sheets to below 60 ℃ to prepare a pre-sizing material; mixing the pre-sizing material, sulfur, an accelerator and a foaming agent, putting into a rubber internal mixer, kneading for 3min, and then feeding into a rolling device for continuous rolling.

And (3) placing the first coiled material and the second coiled material into a continuous vulcanizing device for vulcanizing, and heating the coiled materials in the device to 130 ℃ through an electric heating furnace for vulcanizing to prepare the coiled materials.

The coiled material provided in the embodiment 2 is conveyed to the cutting device by limiting the width of the coiled material according to the preset width after the center of gravity is stabilized by the vibration device, the coiled material is fixed on the operating platform by the first adsorption hole, the second adsorption hole and the air suction device along with the conveying belt and the conveying device in the cutting device, and the figure (model) of the coiled material needed to be carved by the cutting device is uploaded to the control computer of the cutting device in a numerical control mode, and the coiled material is carved by using the tungsten steel knife. And cooling, rolling and packaging after carving is finished, thus obtaining the prefabricated coiled material.

Comparative example 1

This comparative example provides a double-layered web comprising a first layer of web and a second layer of web, the first layer of web being positioned over the second layer of web, the second layer of web being in contact with an area to be laid,

The preparation method of the first coiled material specifically comprises the following steps: mixing natural rubber, styrene-butadiene rubber, calcium carbonate, natural rubber powder, naphthenic oil, azodicarbonamide, 2' -methylenebis (4-methyl-6-tertiary butyl phenol) and iron oxide red, putting the mixture into a rubber internal mixer, kneading the mixture for 20 minutes at the temperature of less than or equal to 110 ℃, putting the mixture into an open mill, rolling the mixture into sheets, and cooling the sheets to the temperature of below 60 ℃ to prepare a preformed rubber material; mixing the pre-sizing material, sulfur, an accelerator and a foaming agent, putting into a rubber internal mixer, kneading for 3min, and then feeding into a rolling device for continuous rolling to prepare the coiled material.

The preparation method of the second coiled material specifically comprises the following steps: mixing styrene-butadiene rubber, calcium carbonate, natural rubber powder and naphthenic oil, then putting the mixture into a rubber internal mixer, kneading the mixture for 20 minutes at the temperature of less than or equal to 110 ℃, putting the mixture into an open mill, rolling the mixture into sheets, and cooling the sheets to the temperature of below 60 ℃ to prepare a pre-sizing material; mixing the pre-sizing material, sulfur, an accelerator and a foaming agent, putting into a rubber internal mixer, kneading for 3min, and then feeding into a rolling device for continuous rolling.

The coiled material provided in the comparative example 1 is conveyed to the cutting device in a limiting mode according to the preset width after the center of gravity is stabilized by the vibrating device, the coiled material is conveyed to the operating platform along with the conveying belt and the conveying device in the cutting device, the coiled material is fixed on the operating platform through the first adsorption hole, the second adsorption hole and the air suction device, and the figure (model) of the coiled material needed to be carved by the cutting device is uploaded to a control computer of the cutting device in a numerical control mode, and the coiled material is carved by the tungsten steel knife. And cooling, rolling and packaging after carving is finished, thus obtaining the prefabricated coiled material.

Detection method and detection result

The assembled prefabricated coiled materials of the embodiment and the comparative example are tested by GB 36246-2018 'middle and primary school synthetic material surface layer sports ground', so that the following test results are obtained:

it can be seen that the coiled materials and the comparative examples provided by the invention can meet the national standard in the aspects of raw material composition test or performance data.

The prefabricated coiled materials provided in the embodiment 1 are assembled, and the assembling effect is shown in fig. 4. The assembled coiled material in the embodiment shown in fig. 4 has certain flexibility and can be bent by 5-15 degrees, the formula of the assembled coiled material improves the flexibility of the coiled material and reduces the internal stress of the coiled material, the coiled material is enabled to be not deformed after being buckled, the coiled material is free of wrinkles, and the coiled material can be used for not only completing the paving of straight channels of a sport field, but also directly completing the paving of curved channels of the sport field.

The prefabricated coiled materials provided in the embodiment 2 are assembled, and the assembling effect is shown in fig. 5. As shown in FIG. 5, the assembled coiled material in the embodiment has good immediate cutting effect, high surface flatness between coiled materials, tight buckling connection, almost no gaps between the buckling parts of two adjacent coiled materials, good splicing state even after being placed for 6 months, improved flexibility of the coiled materials and reduced internal stress of the coiled materials due to the formula of the coiled materials, small difference of contraction coefficients between double-layer coiled materials, good connection state even after long-time oxidation and aging, and no deformation and warping of the whole coiled materials and the connection parts.

In addition, the cooperation uses the "T" shape buckle at coiled material edge, just has 7 contact surfaces in a single buckle junction, improves the area of contact and the frictional force of contact of buckle junction by a wide margin, and the atress of even block structure junction further improves the degree of close connection of buckle junction, can realize accomplishing the work of mating formation under the prerequisite that does not have glue to accomplish to assemble, has still reduced the risk to assembling coiled material user's injury, improves the motion security to the user.

The prefabricated coiled materials provided in comparative example 1 were assembled, and the assembling effect is shown in fig. 6. The assembled coil of this comparative example, as shown in fig. 6, had a large number of gaps at the joints after six months of assembly, and could not achieve tight connection between the assembled coils because the use of coils without optimized formulation had poor flexibility, had no better oxidation resistance and aging resistance, and could not achieve well-bonded assembled coils. Even if the effective compounding is realized in the laying process, after six months of the assembly, coiled materials are oxidized and aged, the difference of contraction coefficients between double-layer coiled materials is large, the warping of the joint between the coiled materials is obvious, and the buckle at the assembly position is easy to deform to cause untight. Safety accidents may occur during the use of the user.

Further, because the buckle at the cutting position of the coiled material in the comparative example is a dovetail groove-shaped buckle, compared with the 7 contact surfaces of the T-shaped buckle in the embodiment, the reduction of the contact surfaces and the reduction of the friction force of the contact surfaces also lead to poor connection effect of the clamping structure between the subsequent coiled materials, so that the spliced coiled materials with reliable and stable connection, difficult separation between the coiled materials, difficult warping of the connection position and difficult deformation can be obtained only by matching the clamping structure with large contact area under the premise of simultaneously meeting the coiled material composition provided by the invention.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present invention, which facilitate a specific and detailed understanding of the technical solutions of the present invention, but are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. It should be understood that those skilled in the art, based on the technical solutions provided by the present invention, can obtain technical solutions through logical analysis, reasoning or limited experiments, all fall within the protection scope of the appended claims. The scope of the patent is therefore intended to be covered by the appended claims, and the description and drawings may be interpreted as illustrative of the contents of the claims.

Claims

1. A roll comprising at least one layer of material;

the coil stock is prepared from the following raw materials in parts by weight:

the filler comprises 5-35 parts of inorganic filler and 5-35 parts of organic filler, wherein the inorganic filler is at least one selected from kaolin, nano calcium carbonate and white carbon black; the particle size of the inorganic filler is 25 nm-80 nm; the organic filler is selected from at least one of natural rubber powder and natural rubber sponge powder;

the first rubber is at least one of nitrile rubber, styrene-butadiene rubber and natural rubber, and the rubber lubricant is selected from hydroxyl silicone oil, fatty alcohol polyoxyethylene ether and polyether polyol with the molecular weight of 4000-8000, or hydroxyl silicone oil, fatty alcohol polyoxyethylene ether and polyether polyol with the molecular weight of 4000-8000.

2. The coil stock of claim 1 wherein the raw materials of the coil stock further comprise 1 to 15 parts of flame retardant, 0.1 to 3 parts of anti-aging agent, and 0.1 to 6 parts of colorant.

3. A method of making a web comprising the steps of:

s110: preparing the raw materials of the coil stock in the coil stock according to claim 1 or 2;

s150: calendering the sizing material.

4. A preformed web, characterized in that the edges of at least one side of the web as claimed in claim 1 or 2 are provided with protrusions and recesses for engagement structure connection at intervals.

5. A method of processing a preformed web as claimed in claim 4, comprising the steps of:

The conveying device conveys the coiled material to the operation table, the coiled material is fixedly adsorbed to the operation table through the adsorption device and the first adsorption hole, the coiled material fixed to the operation table is cut by the engraving knife, and at least one side connecting edge of the coiled material is provided with a convex part and a concave part which are used for being connected in a clamping structure at intervals.

6. The method of processing a preformed web of material of claim 5 wherein the graver comprises a water knife and a tungsten steel knife.

7. The method for processing the prefabricated coiled material according to claim 6, wherein the carving knife is a water knife, and the coiled material comprises the following raw materials in parts by weight:

8. a method of processing a preformed web as claimed in any one of claims 5 to 7, wherein the cutting means further comprises a conveyor belt connected to the conveyor means on the operating table.

9. An assembled coiled material is characterized by comprising a plurality of prefabricated coiled materials according to claim 4 which are connected in sequence, wherein two adjacent prefabricated coiled materials are connected through a clamping structure, the connecting edge of one prefabricated coiled material is provided with a convex part and a concave part which are used for being connected through the clamping structure at intervals, and the connecting edge of the other prefabricated coiled material is provided with a concave part and a convex part which are used for being connected through the clamping structure at intervals.

10. Use of a coil material according to any one of claims 1-2 or a prefabricated coil material according to claim 4 or a spliced coil material according to claim 9 in the manufacture of a racetrack.