CN111117175B - Prefabricated coiled material and preparation method thereof - Google Patents
Prefabricated coiled material and preparation method thereof Download PDFInfo
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- CN111117175B CN111117175B CN202010006892.1A CN202010006892A CN111117175B CN 111117175 B CN111117175 B CN 111117175B CN 202010006892 A CN202010006892 A CN 202010006892A CN 111117175 B CN111117175 B CN 111117175B
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J2203/00—Foams characterized by the expanding agent
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- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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Abstract
The invention discloses a prefabricated coiled material and a preparation method thereof. The prefabricated coiled material comprises the following components in parts by mass: rubber particles: 10-60 parts; thermoplastic polyester elastomer foamed particles: 10-50 parts; polyurethane adhesive: 5-20 parts. The preparation method of the prefabricated coiled material comprises the following steps: 1) uniformly mixing the rubber particles and the thermoplastic polyester elastomer foaming particles, and then adding a polyurethane adhesive to uniformly mix to obtain a mixture; 2) adding the mixture into a forming device, performing compression forming, heating again, performing curing forming, cooling again, and cutting. The prefabricated coiled material has the advantages of light specific gravity, high elasticity, high tensile strength, uniform thickness and no pungent smell, can be adhered to a cement substrate through an adhesive to obtain a sports ground, is firm in adhesion, convenient to construct and capable of being recycled.
Description
Technical Field
The invention relates to a prefabricated coiled material and a preparation method thereof.
Background
Along with the improvement of the living standard of people, more and more people are interested in participating in various sports, and the quality of the sports ground has great influence on the sports experience of people. The existing sports ground is basically constructed and paved on site, and the following problems generally exist: 1) the construction period is long, the product quality is difficult to guarantee, the condition of uneven thickness is easy to occur, and the outdoor construction is easily influenced by rain and snow weather; 2) the main raw materials are waste tire regenerated rubber, PU (polyurethane) polyester sizing materials and the like, the waste tire has large odor, the polycyclic aromatic hydrocarbon exceeds the standard, the PU polyester sizing materials need to carry out secondary reaction on site, VOC (volatile organic compounds) can be released, the odor of the construction site is large, and the environment is polluted; 3) the construction needs a long time to use; 4) the combination of the sports ground and the substrate is not firm enough, and the service life is short.
Therefore, there is a need for new ways to solve the problems of the conventional sports floor.
Disclosure of Invention
The invention aims to provide a prefabricated coiled material and a preparation method thereof.
The technical scheme adopted by the invention is as follows:
a prefabricated coiled material comprises the following components in parts by mass: rubber particles: 10-60 parts; thermoplastic polyester elastomer foamed particles: 10-50 parts; polyurethane adhesive: 5-20 parts.
Preferably, the prefabricated coiled material consists of the following components in parts by mass: rubber particles: 20-40 parts of a solvent; thermoplastic polyester elastomer foamed particles: 20-40 parts of a solvent; polyurethane adhesive: 10-20 parts.
Preferably, the particle size of the rubber particles is 1-4 mm, and the particle size of the thermoplastic polyester elastomer foaming particles is 3-7 mm.
Preferably, the rubber particles are prepared from the following raw materials in parts by mass: masterbatch: 100 parts of (A); precipitation method white carbon black: 5-20 parts of a solvent; activated calcium carbonate: 20-60 parts; a protection system: 3-10 parts; pigment: 1-10 parts; dispersing agent: 1-5 parts.
Further preferably, the rubber particles are prepared from the following raw materials in parts by mass: masterbatch: 100 parts of (A); precipitation method white carbon black: 5-15 parts of a solvent; activated calcium carbonate: 35-45 parts of a solvent; a protection system: 3-5 parts; pigment: 5-8 parts; dispersing agent: 3-5 parts.
Preferably, the master batch consists of the following components in parts by mass: ethylene-propylene-butadiene block copolymer: 2-20 parts of a solvent; ethylene propylene diene monomer: 2-35 parts; styrene-ethylene-butylene-styrene block copolymer: 3-10 parts; styrene-butadiene block copolymer: 1-15 parts; polypropylene: 1-10 parts; polyethylene: 1-10 parts; rubber softening oil: 2-20 parts of a solvent; dispersing agent: 2-5 parts.
Further preferably, the master batch consists of the following components in parts by mass: ethylene-propylene-butadiene block copolymer: 10-20 parts; ethylene propylene diene monomer: 20-35 parts of a solvent; styrene-ethylene-butylene-styrene block copolymer: 3-10 parts; styrene-butadiene block copolymer: 8-15 parts; polypropylene: 7-10 parts; polyethylene: 3-10 parts; rubber softening oil: 15-20 parts of a solvent; dispersing agent: 2-5 parts.
Preferably, the specific surface area of the precipitated silica is 300-400 m2/g。
Preferably, the activated calcium carbonate is calcium carbonate activated by stearic acid or a silane coupling agent.
Preferably, the particle size of the active calcium carbonate is 1000-1500 meshes.
Preferably, the protection system is prepared from an antioxidant TH-CPL, an antioxidant 1010, an ultraviolet absorbent UV-531 and microcrystalline paraffin according to the mass ratio (0.1-2): (0.2-3): (0.4-5): (2-8).
The preparation method of the rubber particles comprises the following steps:
1) adding the master batch, the precipitated white carbon black, the activated calcium carbonate, the protective system, the pigment and the dispersing agent into an internal mixer, heating and pressurizing, and internally mixing the master batch, the precipitated white carbon black, the activated calcium carbonate, the protective system, the pigment and the dispersing agent into a mass under the conditions that the temperature in the internal mixer is 100-120 ℃ and the pressure in the internal mixer is 1-8 MPa;
2) transferring the raw materials in the internal mixer into an open mill, and carrying out open milling and thin passing;
3) transferring the raw materials in the open mill into a single-screw extruder, mixing, extruding at 50-80 ℃ in the extruder,
obtaining a film;
4) putting the rubber sheet in hot air at 180-250 ℃ for vulcanization and foaming;
5) and crushing the rubber sheet into particles, and then screening to obtain rubber particles.
Preferably, the thermoplastic polyester elastomer foamed particles are prepared from the following raw materials in parts by mass: polyester polyol or/and polyether polyol: 100-200 parts; polyurethane: 50-100 parts; AC foaming agent: 1-10 parts; white carbon black: 10-50 parts; ultraviolet absorber: 3-10 parts; toner: 2-10 parts; polycarbonate (C): 5-30 parts.
Further preferably, the thermoplastic polyester elastomer foamed particles are prepared from the following raw materials in parts by mass: polyester polyol or/and polyether polyol: 100-200 parts; polyurethane: 50-100 parts; AC foaming agent: 3-10 parts; white carbon black: 20-40 parts of a solvent; ultraviolet absorber: 3-7 parts; toner: 3-10 parts; polycarbonate (C): 10-25 parts.
Preferably, the polyester polyol is at least one of polyethylene glycol adipate and polyethylene glycol-1, 4-butanediol adipate glycol.
Preferably, the number average molecular weight of the polyester polyol is 1500-2500 g/mol, and the hydroxyl value is 52-58 mgKOH/g.
Preferably, the polyether polyol is at least one of polyoxypropylene diol and polytetrahydrofuran diol.
Preferably, the polyether polyol has a number average molecular weight of 1500-2500 g/mol and a hydroxyl value of 52-58 mgKOH/g.
The preparation method of the thermoplastic polyester elastomer foaming particles comprises the following steps:
1) adding polyester polyol or/and polyether polyol, polyurethane, an AC foaming agent, white carbon black, an ultraviolet absorbent, toner and polycarbonate into a single-screw extruder, extruding and granulating to obtain a granular material;
2) and adding the granules into a reaction kettle, heating to 200-220 ℃, and carrying out chemical foaming to obtain the thermoplastic polyester elastomer foaming granules.
The preparation method of the prefabricated coiled material comprises the following steps:
1) mixing the rubber particles and the thermoplastic polyester elastomer foaming particles uniformly, adding the polyurethane adhesive, and mixing uniformly,
obtaining a mixture;
2) and adding the mixture into a forming device, performing compression forming, heating again, performing curing forming, cooling again, and cutting to obtain the prefabricated coiled material.
Preferably, the compression molding in the step 2) is performed under the condition of 8-10 MPa.
Preferably, the curing and forming in the step 2) are carried out at a temperature of 100-120 ℃.
The invention has the beneficial effects that: the prefabricated coiled material has the advantages of light specific gravity, high elasticity, high tensile strength, uniform thickness and no pungent smell, can be adhered to a cement substrate through an adhesive to obtain a sports ground, is firm in adhesion, convenient to construct and capable of being recycled.
Drawings
Fig. 1 is a photograph of a prefabricated coil material of example 1.
Detailed Description
The invention will be further explained and illustrated with reference to specific examples.
Example 1:
a prefabricated coiled material is prepared by the following steps:
1) preparation of rubber particles: a) uniformly mixing 15 parts by mass of an ethylene-propylene-butadiene block copolymer, 25 parts by mass of ethylene propylene diene monomer, 8 parts by mass of a styrene-ethylene-butylene-styrene block copolymer, 15 parts by mass of a styrene-butadiene block copolymer, 7 parts by mass of polypropylene, 8 parts by mass of polyethylene, 20 parts by mass of rubber softening oil and 5 parts by mass of a dispersing agent to obtain a master batch; b) 100 parts by mass of master batch and 5 parts by mass of precipitated silica (the specific surface area is 300-400 m)2Per gram), 40 parts by mass of stearic acid activated calcium carbonate (1000-1500 meshes), 5 parts by mass of a protection system (composed of antioxidant TH-CPL, antioxidant 1010, ultraviolet absorbent UV-531 and microcrystalline wax according to a mass ratio of 1:1:2: 4), 5 parts by mass of pigment and 4 parts by mass of microcrystalline waxAdding a dispersing agent into an internal mixer, heating and pressurizing, and internally mixing and agglomerating at the temperature of 100 ℃ and the pressure of 2MPa in the internal mixer; c) transferring the raw materials in the internal mixer into an open mill, and carrying out open milling and thin passing; d) transferring the raw materials in the open mill into a single-screw extruder, mixing, and extruding at 50 ℃ in the extruder to obtain a rubber sheet; e) putting the rubber sheet into hot air at 230 ℃ for vulcanization and foaming; f) crushing the rubber sheet into particles, and then screening to obtain rubber particles with the particle size of 1-4 mm;
2) preparation of thermoplastic polyester elastomer foamed particles: a) adding 150 parts by mass of polyethylene glycol adipate (with the number average molecular weight of 1500-2500 g/mol and the hydroxyl value of 52-58 mgKOH/g), 100 parts by mass of polyurethane, 10 parts by mass of AC foaming agent, 40 parts by mass of white carbon black, 7 parts by mass of ultraviolet absorbent, 5 parts by mass of toner and 15 parts by mass of polycarbonate into a single-screw extruder, and extruding and granulating to obtain a granular material; b) and adding the granules into a reaction kettle, heating to 200 ℃, and carrying out chemical foaming to obtain thermoplastic polyester elastomer foaming granules with the particle size of 3-5 mm.
3) Bonding, molding and cutting the rubber particles and the thermoplastic polyester elastomer foaming particles: a) mixing 30 parts by mass of rubber particles and 30 parts by mass of thermoplastic polyester elastomer foamed particles uniformly, and then adding 15 parts by mass of polyurethane adhesive and mixing uniformly to obtain a mixture; b) adding the mixture into a forming device, performing compression forming under the condition of 10MPa, heating to 100 ℃ for curing forming, cooling, and cutting to obtain the prefabricated coiled material (the picture is shown in figure 1).
Example 2:
a prefabricated coiled material is prepared by the following steps:
1) preparation of rubber particles: a) uniformly mixing 18 parts by mass of an ethylene-propylene-butadiene block copolymer, 20 parts by mass of ethylene propylene diene monomer, 5 parts by mass of a styrene-ethylene-butylene-styrene block copolymer, 12 parts by mass of a styrene-butadiene block copolymer, 8 parts by mass of polypropylene, 10 parts by mass of polyethylene, 20 parts by mass of rubber softening oil and 5 parts by mass of a dispersing agent to obtain a master batch; b) 100 parts by mass of a master batch13 parts by mass of precipitated silica (the specific surface area is 300-400 m)2The protective agent comprises the following raw materials, by mass, 44 parts of stearic acid activated calcium carbonate (1000-1500 meshes), 3 parts of a protective system (composed of an antioxidant TH-CPL, an antioxidant 1010, an ultraviolet absorbent UV-531 and microcrystalline wax according to a mass ratio of 1:1:2: 4), 7 parts of pigment and 5 parts of a dispersing agent by mass are added into an internal mixer for heating and pressurizing, and the mixture is internally mixed and agglomerated under the conditions that the temperature in the internal mixer is 100 ℃ and the pressure is 4 MPa; c) transferring the raw materials in the internal mixer into an open mill, and carrying out open milling and thin passing; d) transferring the raw materials in the open mill into a single-screw extruder, mixing, and extruding at 50 ℃ in the extruder to obtain a rubber sheet; e) putting the rubber sheet in hot air at 235 ℃ for vulcanization and foaming; f) crushing the rubber sheet into particles, and then screening to obtain rubber particles with the particle size of 1-4 mm;
2) preparation of thermoplastic polyester elastomer foamed particles: a) adding 150 parts by mass of poly (ethylene adipate-1, 4-butanediol) (the number average molecular weight is 1500-2500 g/mol, and the hydroxyl value is 52-58 mgKOH/g), 60 parts by mass of polyurethane, 5 parts by mass of AC foaming agent, 30 parts by mass of white carbon black, 5 parts by mass of ultraviolet absorbent, 7 parts by mass of toner and 10 parts by mass of polycarbonate into a single-screw extruder, extruding and granulating to obtain granules; b) and adding the granules into a reaction kettle, heating to 200 ℃, and carrying out chemical foaming to obtain thermoplastic polyester elastomer foaming granules with the particle size of 3-5 mm.
3) Bonding, molding and cutting the rubber particles and the thermoplastic polyester elastomer foaming particles: a) mixing 35 parts by mass of rubber particles and 20 parts by mass of thermoplastic polyester elastomer foamed particles uniformly, and then adding 20 parts by mass of polyurethane adhesive and mixing uniformly to obtain a mixture; b) and adding the mixture into a forming device, performing compression forming under the condition of 10MPa of pressure, heating to 105 ℃ for curing forming, cooling and cutting to obtain the prefabricated coiled material.
Example 3:
a prefabricated coiled material is prepared by the following steps:
1) preparation of rubber particles: a) 10 parts by mass of an ethylene-propylene-butadiene blockUniformly mixing a copolymer, 30 parts by mass of ethylene propylene diene monomer, 10 parts by mass of styrene-ethylene-butylene-styrene block copolymer, 15 parts by mass of styrene-butadiene block copolymer, 7 parts by mass of polypropylene, 7 parts by mass of polyethylene, 20 parts by mass of rubber softening oil and 5 parts by mass of a dispersing agent to obtain a master batch; b) 100 parts by mass of master batch and 13 parts by mass of precipitated silica (the specific surface area is 300-400 m)2The protective agent comprises the following raw materials, by mass, 42 parts of stearic acid activated calcium carbonate (1000-1500 meshes), 5 parts of a protective system (composed of an antioxidant TH-CPL, an antioxidant 1010, an ultraviolet absorbent UV-531 and microcrystalline paraffin according to a mass ratio of 0.5:1:3: 5), 8 parts of pigment and 3 parts of a dispersing agent by mass are added into an internal mixer for heating and pressurizing, and the mixture is internally mixed and agglomerated under the conditions of a temperature of 110 ℃ and a pressure of 2MPa in the internal mixer; c) transferring the raw materials in the internal mixer into an open mill, and carrying out open milling and thin passing; d) transferring the raw materials in the open mill into a single-screw extruder, mixing, and extruding at the temperature of 70 ℃ in the extruder to obtain a rubber sheet; e) putting the rubber sheet into hot air at 240 ℃ for vulcanization and foaming; f) crushing the rubber sheet into particles, and then screening to obtain rubber particles with the particle size of 1-3.5 mm;
2) preparation of thermoplastic polyester elastomer foamed particles: a) adding 100 parts by mass of poly (ethylene adipate-1, 4-butanediol) (the number average molecular weight is 1500-2500 g/mol, and the hydroxyl value is 52-58 mgKOH/g), 50 parts by mass of polyurethane, 3 parts by mass of AC foaming agent, 20 parts by mass of white carbon black, 5 parts by mass of ultraviolet absorbent, 5 parts by mass of toner and 20 parts by mass of polycarbonate into a single-screw extruder, extruding and granulating to obtain a granular material; b) and adding the granules into a reaction kettle, heating to 210 ℃, and carrying out chemical foaming to obtain thermoplastic polyester elastomer foaming granules with the particle size of 4-7 mm.
3) Bonding, molding and cutting the rubber particles and the thermoplastic polyester elastomer foaming particles: a) mixing 25 parts by mass of rubber particles and 40 parts by mass of thermoplastic polyester elastomer foamed particles uniformly, and then adding 10 parts by mass of polyurethane adhesive and mixing uniformly to obtain a mixture; b) and adding the mixture into a forming device, performing compression forming under the condition of 8MPa, heating to 108 ℃ for curing forming, cooling and cutting to obtain the prefabricated coiled material.
Example 4:
a prefabricated coiled material is prepared by the following steps:
1) preparation of rubber particles: a) uniformly mixing 10 parts by mass of an ethylene-propylene-butadiene block copolymer, 35 parts by mass of ethylene propylene diene monomer, 3 parts by mass of a styrene-ethylene-butylene-styrene block copolymer, 8 parts by mass of a styrene-butadiene block copolymer, 10 parts by mass of polypropylene, 3 parts by mass of polyethylene, 20 parts by mass of rubber softening oil and 5 parts by mass of a dispersing agent to obtain a master batch; b) 100 parts by mass of master batch and 15 parts by mass of precipitated silica (the specific surface area is 300-400 m)2The protective agent comprises the following raw materials, by mass, 35 parts of stearic acid activated calcium carbonate (1000-1500 meshes), 5 parts of a protective system (composed of an antioxidant TH-CPL, an antioxidant 1010, an ultraviolet absorbent UV-531 and microcrystalline wax according to a mass ratio of 2:2:1: 5), 5 parts of pigment and 4 parts of a dispersing agent are added into an internal mixer for heating and pressurizing, and the mixture is internally mixed and agglomerated under the conditions that the temperature in the internal mixer is 120 ℃ and the pressure is 5 MPa; c) transferring the raw materials in the internal mixer into an open mill, and carrying out open milling and thin passing; d) transferring the raw materials in the open mill into a single-screw extruder, mixing, and extruding at the temperature of 60 ℃ in the extruder to obtain a rubber sheet; e) putting the film in hot air at 245 ℃ for vulcanization and foaming; f) crushing the rubber sheet into particles, and then screening to obtain rubber particles with the particle size of 1-3.5 mm;
2) preparation of thermoplastic polyester elastomer foamed particles: a) adding 200 parts by mass of polyoxypropylene glycol (the number average molecular weight is 1500-2500 g/mol, and the hydroxyl value is 52-58 mgKOH/g), 80 parts by mass of polyurethane, 7 parts by mass of AC foaming agent, 35 parts by mass of white carbon black, 7 parts by mass of ultraviolet absorbent, 10 parts by mass of toner and 20 parts by mass of polycarbonate into a single-screw extruder, and extruding and granulating to obtain granules; b) and adding the granules into a reaction kettle, heating to 210 ℃, and carrying out chemical foaming to obtain thermoplastic polyester elastomer foaming granules with the particle size of 4-7 mm.
3) Bonding, molding and cutting the rubber particles and the thermoplastic polyester elastomer foaming particles: a) mixing 25 parts by mass of rubber particles and 40 parts by mass of thermoplastic polyester elastomer foamed particles uniformly, and then adding 15 parts by mass of polyurethane adhesive and mixing uniformly to obtain a mixture; b) and adding the mixture into a forming device, performing compression forming under the condition of 8MPa of pressure, heating to 100 ℃ again for curing forming, cooling, and cutting to obtain the prefabricated coiled material.
Example 5:
a prefabricated coiled material is prepared by the following steps:
1) preparation of rubber particles: a) uniformly mixing 20 parts by mass of an ethylene-propylene-butadiene block copolymer, 25 parts by mass of ethylene propylene diene monomer, 8 parts by mass of a styrene-ethylene-butylene-styrene block copolymer, 10 parts by mass of a styrene-butadiene block copolymer, 7 parts by mass of polypropylene, 7 parts by mass of polyethylene, 15 parts by mass of rubber softening oil and 5 parts by mass of a dispersing agent to obtain a master batch; b) 100 parts by mass of master batch and 10 parts by mass of precipitated silica (the specific surface area is 300-400 m)2The protective agent comprises the following raw materials, by mass, 40 parts of stearic acid activated calcium carbonate (1000-1500 meshes), 5 parts of a protective system (composed of an antioxidant TH-CPL, an antioxidant 1010, an ultraviolet absorbent UV-531 and microcrystalline paraffin according to a mass ratio of 0.5:3:4: 3), 5 parts of pigment and 3 parts of a dispersing agent are added into an internal mixer for heating and pressurizing, and the mixture is internally mixed and agglomerated under the conditions that the temperature in the internal mixer is 120 ℃ and the pressure is 2 MPa; c) transferring the raw materials in the internal mixer into an open mill, and carrying out open milling and thin passing; d) transferring the raw materials in the open mill into a single-screw extruder, mixing, and extruding at the temperature of 80 ℃ in the extruder to obtain a rubber sheet; e) putting the film in hot air at 248 ℃ for vulcanization and foaming; f) crushing the rubber sheet into particles, and then screening to obtain rubber particles with the particle size of 1-4 mm;
2) preparation of thermoplastic polyester elastomer foamed particles: a) adding 180 parts by mass of polytetrahydrofuran diol (with the number average molecular weight of 1500-2500 g/mol and the hydroxyl value of 52-58 mgKOH/g), 70 parts by mass of polyurethane, 5 parts by mass of AC foaming agent, 30 parts by mass of white carbon black, 3 parts by mass of ultraviolet absorbent, 3 parts by mass of toner and 25 parts by mass of polycarbonate into a single-screw extruder, and extruding and granulating to obtain a granular material; b) and adding the granules into a reaction kettle, heating to 200 ℃, and carrying out chemical foaming to obtain thermoplastic polyester elastomer foaming granules with the particle size of 4-7 mm.
3) Bonding, molding and cutting the rubber particles and the thermoplastic polyester elastomer foaming particles: a) mixing 40 parts by mass of rubber particles and 30 parts by mass of thermoplastic polyester elastomer foamed particles uniformly, and then adding 20 parts by mass of polyurethane adhesive and mixing uniformly to obtain a mixture; b) and adding the mixture into a forming device, performing compression forming under the condition of 10MPa of pressure, heating to 115 ℃ for curing forming, cooling and cutting to obtain the prefabricated coiled material.
Test example:
the prefabricated coiled materials of the embodiments 1 to 5 are subjected to performance tests, and the test results are shown in the following table:
TABLE 1 Performance test results of the prefabricated coiled materials of examples 1 to 5
| Performance index | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Appearance of the product | Good effect | Good effect | Good effect | Good effect | Good effect |
| Thickness (mm) | 9 | 9 | 9 | 9 | 9 |
| Density (g/cm)3) | 1.10 | 1.05 | 1.00 | 1.00 | 0.95 |
| Shore hardness A (°) | 55 | 53 | 51 | 50 | 48 |
| Impact absorption value (%) | 38.0 | 39.0 | 41.3 | 42.5 | 43.2 |
| Vertical deformation (mm) | 0.90 | 1.10 | 1.30 | 1.35 | 1.55 |
| Flame retardant rating | Ⅰ | Ⅰ | Ⅰ | Ⅰ | Ⅰ |
| Tensile Strength (MPa) | 5.60 | 5.75 | 6.03 | 6.12 | 6.30 |
| Elongation at Break (%) | 560 | 575 | 583 | 594 | 607 |
Note:
the test criteria for each performance index in the table are as follows:
thickness: GB 36246-2018;
density: GB/T533-;
shore hardness A: GB/T531.1-2008;
impact absorption value: GB 36246-2018;
vertical deformation: GB 36246-2018;
flame retardant rating: GB 36246-2018;
tensile strength: GB 36246-2018;
elongation at break: GB 36246 and 2018.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. A prefabricated coiled material is characterized in that: the composition comprises the following components in parts by mass: rubber particles: 10-60 parts; thermoplastic polyester elastomer foamed particles: 10-50 parts; polyurethane adhesive: 5-20 parts of a solvent;
the rubber particles are prepared from the following raw materials in parts by mass: masterbatch: 100 parts of (A); precipitation method white carbon black: 5-20 parts of a solvent; activated calcium carbonate: 20-60 parts; a protection system: 3-10 parts; pigment: 1-10 parts; dispersing agent: 1-5 parts; the master batch comprises the following components in parts by mass: ethylene-propylene-butadiene block copolymer: 2-20 parts of a solvent; ethylene propylene diene monomer: 2-35 parts; styrene-ethylene-butylene-styrene block copolymer: 3-10 parts; styrene-butadiene block copolymer: 1-15 parts; polypropylene: 1-10 parts; polyethylene: 1-10 parts; rubber softening oil: 2-20 parts of a solvent; dispersing agent: 2-5 parts; the particle size of the rubber particles is 1-4 mm; the particle size of the thermoplastic polyester elastomer foaming particles is 3-7 mm; the thermoplastic polyester elastomer foaming particles are prepared from the following raw materials in parts by mass: polyester polyol or/and polyether polyol: 100-200 parts; polyurethane: 50-100 parts; AC foaming agent: 1-10 parts; white carbon black: 10-50 parts; ultraviolet absorber: 3-10 parts; toner: 2-10 parts; polycarbonate (C): 5-30 parts.
2. The preformed coil as recited in claim 1, wherein: the specific surface area of the precipitated white carbon black is 300-400 m2/g。
3. The preformed coil as recited in claim 1, wherein: the active calcium carbonate is calcium carbonate activated by stearic acid or a silane coupling agent.
4. The preformed coil as recited in claim 1, wherein: the protection system is prepared from an antioxidant TH-CPL, an antioxidant 1010, an ultraviolet absorbent UV-531 and microcrystalline paraffin according to the mass ratio (0.1-2): (0.2-3): (0.4-5): (2-8).
5. The preformed coil as recited in claim 1, wherein: the polyester polyol is at least one of polyethylene glycol adipate and polyethylene glycol adipate-1, 4-butanediol glycol.
6. The preformed coil as recited in claim 1, wherein: the polyether polyol is at least one of polypropylene oxide glycol and polytetrahydrofuran glycol.
7. The method for producing a prefabricated coil stock as claimed in any one of claims 1 to 6, wherein: the method comprises the following steps: 1) uniformly mixing the rubber particles and the thermoplastic polyester elastomer foaming particles, and then adding a polyurethane adhesive to uniformly mix to obtain a mixture; 2) and adding the mixture into a forming device, performing compression forming, heating again, performing curing forming, cooling again, and cutting to obtain the prefabricated coiled material.
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| CN111849080A (en) * | 2020-08-04 | 2020-10-30 | 湖北晟弘新材料有限公司 | Micro-foaming rubber track and preparation method thereof |
| CN115257011A (en) * | 2022-07-22 | 2022-11-01 | 重庆长安汽车股份有限公司 | Composite foam material and preparation method thereof |
| CN116462894B (en) * | 2023-05-26 | 2024-03-12 | 西南交通大学 | Super-performance rubber backing plate material for track, preparation method and backing plate structure |
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Denomination of invention: Prefabricated coiled material and its preparation method Effective date of registration: 20221226 Granted publication date: 20220408 Pledgee: Qingyuan Branch of Postal Savings Bank of China Co.,Ltd. Pledgor: GUANGDONG CHUANAO HIGH-TECH CO.,LTD. Registration number: Y2022980029136 |
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