CN107974024B - Thermoplastic elastomer composition, and preparation method and application thereof - Google Patents
Thermoplastic elastomer composition, and preparation method and application thereof Download PDFInfo
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- CN107974024B CN107974024B CN201711386162.3A CN201711386162A CN107974024B CN 107974024 B CN107974024 B CN 107974024B CN 201711386162 A CN201711386162 A CN 201711386162A CN 107974024 B CN107974024 B CN 107974024B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K2003/265—Calcium, strontium or barium carbonate
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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Abstract
The invention discloses a thermoplastic elastomer composition, a preparation method and an application thereof, wherein the composition comprises the following raw material components in parts by weight: 20-150 parts of SEPS or SEEPS or a mixture of SEPS and SEEPS; 20-150 parts of ethylene-octene block copolymer olefin; 20-200 parts of paraffin oil; 20-160 parts of maleic anhydride grafted butadiene; 20-150 parts of maleic anhydride grafted polypropylene; 10-200 parts of rubber powder; 10-100 parts of silicone powder; 10-50 parts of inorganic filler; 1.9-10% of DCP master batch and 1.9-10% of TMPTMA; 30-50 parts of PP particles. The preparation method comprises the following steps: the thermoplastic elastomer material is blended with rubber powder by a two-step process to form a new thermoplastic elastomer blending system. The floor prepared by the thermoplastic elastomer has the advantages of wet and skid resistance, wear resistance and high weather resistance.
Description
Technical Field
The invention belongs to the field of polymer modified materials and production and processing thereof, and particularly relates to a thermoplastic elastomer composition and a preparation method and application thereof.
Background
The floor for sports fields is required to have the following properties at the same time: good impact absorption properties and good ball rebound properties, and wet skid resistance and wear resistance are required. Impact absorption performance can reduce and cause the damage to the shank joint, and the scheme of solution adopts the low foam material of density usually, nevertheless because the foam material compression ratio of low density is than higher, tramples the back for a long time and cause floor thickness inequality and sunken problem easily, and then influences the product and use, and the ball resilience performance can not satisfy the design requirement moreover.
For this purpose, rigid base structures are often used in the prior art, on the surface of which a layer of thermoplastic elastomer is injection-molded. Practice shows that: although this structure can satisfy the ball rebound performance, in the long-term use, the impact absorption performance is poor, and the demand of high-specification stadiums cannot be satisfied.
How to ensure that the floor can also ensure the resilience performance of the ball while improving the impact absorption performance, and has the advantages of wet skid resistance, wear resistance and weather resistance, which can be realized by using a single material rarely in the prior art.
Disclosure of Invention
The embodiment of the invention aims to provide a thermoplastic elastomer composition, aiming at solving the defects that the existing single-material floor can not simultaneously meet the impact absorption performance and the ball resilience performance, and has poor wet skid resistance, wear resistance and weather resistance.
It is another object of embodiments of the present invention to provide a method for preparing the above thermoplastic elastomer composition.
It is another object of embodiments of the present invention to provide uses of the above thermoplastic elastomer compositions.
The embodiment of the invention is realized in such a way that the thermoplastic elastomer composition comprises the following raw material components in parts by weight:
20-150 parts of SEPS and/or SEEPS;
20-150 parts of ethylene-octene block copolymer olefin;
20-200 parts of paraffin oil;
20-160 parts of maleic anhydride grafted butadiene;
20-150 parts of maleic anhydride grafted polypropylene;
10-200 parts of rubber powder;
10-100 parts of silicone powder;
10-50 parts of inorganic filler;
30-50 parts of PP particles;
DCP master batch accounting for 1.9-10% of the total weight of the thermoplastic elastomer composition;
and 1.9-10% of TMPTMA (tetramethylammonium bromide) based on the total weight of the thermoplastic elastomer composition.
Preferably, the inorganic filler is calcium carbonate, talc or clay.
The rubber powder is formed by mixing high benzene rubber powder and nitrile rubber powder.
The SEPS and the SEEPS are hydrogenated styrene-isoprene-styrene triblock copolymers;
the DCP master batch is dicumyl peroxide master batch with the purity of 40 percent;
the TMPTMA is trimethylolpropane trimethacrylate.
The invention also provides a preparation method of the thermoplastic elastomer composition, which comprises the following steps:
fully stirring 20-150 parts by weight of SEP and/or SEEPS at 50-80 ℃ until no agglomeration exists, adding 20-200 parts by weight of paraffin oil, stirring and mixing to prepare an oil-extended rubber material;
uniformly compounding the oil-extended rubber material with 20-150 parts by weight of ethylene-octene block copolymer olefin, 20-160 parts by weight of maleic anhydride grafted butadiene, 20-150 parts by weight of maleic anhydride grafted polypropylene, 10-200 parts by weight of rubber powder, 10-100 parts by weight of silicone powder, 10-50 parts by weight of calcium carbonate and 30-50 parts by weight of PP particles, and preparing the particles A by a double-screw extruder;
and (2) uniformly mixing 400-500 parts by weight of the particle A, 10-50 parts by weight of DCP master batch and 10-50 parts by weight of TMPTMA through an internal mixer, and obtaining the thermoplastic elastomer composition through a single-screw extruder.
Preferably, the barrel temperature of the twin-screw extruder is: the first zone is 130-.
The barrel temperature of the single screw extruder is as follows: the first zone is 60-80 ℃, the second zone is 80-100 ℃, the third zone is 80-100 ℃, the fourth zone is 60-80 ℃, and the rotating speed of the single-screw extruder is 50-200 r/min.
The embodiment of the invention also provides application of the thermoplastic elastomer composition in preparing plastic floors.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the thermoplastic elastomer material and the rubber powder are blended by a two-step method to form a new thermoplastic elastomer blending system, and the new thermoplastic elastomer is subjected to thermoplastic processing to prepare the plastic floor with excellent wet skid resistance, wear resistance and weather resistance, and the preparation method of the thermoplastic elastomer material is simple and easy to obtain; the prepared plastic floor can simultaneously meet the impact absorption performance and the ball resilience performance, the hardness is lower, the impact absorption performance is 2 times that of the conventional plastic floor, and the comfort and the safety of the plastic floor in movement are improved.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the embodiment of the invention, the thermoplastic elastomer material and the rubber powder are blended to form a novel thermoplastic elastomer blending system, and the thermoplastic elastomer is subjected to thermoplastic processing, so that the thermoplastic elastomer can be applied to plastic floors and has the performances of wet skid resistance, wear resistance and excellent weather resistance.
The thermoplastic elastomer composition and the method for preparing the same according to the embodiments of the present invention will now be described.
Example 1
The thermoplastic elastomer composition comprises the following components in parts by weight: 75 parts of SEEPS, 65 parts of ethylene-octene block copolymer olefin, 87 parts of paraffin oil, 102 parts of maleic anhydride grafted butadiene, 132 parts of maleic anhydride grafted polypropylene, 60 parts of high benzene rubber powder, 64 parts of nitrile rubber powder, 54 parts of silicone powder, 33 parts of calcium carbonate and 50 parts of PP particles, and in addition, 33 parts of DCP master batch and 25 parts of TMPTMA are weighed.
The preparation method comprises the following steps: fully stirring 75 parts by weight of SEEPS to be fluffy and non-caking state at 80 ℃, adding 87 parts by weight of paraffin oil, and stirring and mixing to prepare an oil-extended rubber material; uniformly compounding the mixture with 65 parts by weight of ethylene-octene block copolymer olefin, 102 parts by weight of maleic anhydride grafted butadiene, 132 parts by weight of maleic anhydride grafted polypropylene, 60 parts by weight of high-benzene rubber powder, 64 parts by weight of nitrile rubber powder, 54 parts by weight of silicone powder, 33 parts by weight of calcium carbonate and 50 parts by weight of PP particles to obtain a compounded mixture, and extruding the compounded mixture through high-shear twin screws to prepare particles A; 450 parts of the granule A, 33 parts of DCP master batch and 25 parts of TMPTMA are uniformly mixed by an internal mixer at 60 ℃, and are extruded by a single screw to prepare granules B, namely the thermoplastic elastomer composition.
The compound mixture is extruded by a double-screw extruder, wherein the barrel temperature of the double-screw extruder is as follows: the first zone is 135 ℃, the second zone is 180 ℃, the third zone is 190 ℃, the fourth zone is 190 ℃, the fifth zone is 200 ℃, the sixth zone is 200 ℃, the seventh zone is 200 ℃, the eighth zone is 180 ℃, the head is 180 ℃, and the rotating speed of the double-screw extruder is 350 revolutions per minute. Stirring the mixture by an internal mixer to 60 ℃, processing for 3 minutes, putting the mixture into a single screw extruder to extrude and granulate, wherein the temperature of a machine barrel of the single screw extruder is as follows: the first zone is 65 ℃, the second zone is 80 ℃, the third zone is 80 ℃, the fourth zone is 65 ℃, and the rotating speed of the main engine is 200 r/min.
The thermoplastic elastomer composition of this example was melted and injection molded to produce a plastic floor.
Example 2
The thermoplastic elastomer composition comprises the following components in parts by weight: the composition mainly comprises the following components in parts by weight: 85 parts of SEPS, 90 parts of ethylene-octene block copolyolefin, 105 parts of paraffin oil, 100 parts of maleic anhydride grafted butadiene, 78 parts of maleic anhydride grafted polypropylene, 85 parts of high benzene rubber powder, 90 parts of nitrile rubber powder, 65 parts of silicone powder, 34 parts of calcium carbonate and 50 parts of PP particles, and 28 parts of DCP master batch and 20 parts of TMPTMA are weighed.
The preparation method comprises the following steps: under the condition of 80 ℃, 85 parts of SEPS by weight are fully stirred until the SEPS is fluffy and is free from agglomeration, 105 parts of paraffin oil is added, and the mixture is stirred and mixed to prepare an oil-filled rubber material; uniformly compounding the mixture with 90 parts by weight of ethylene-octene block co-polyolefin, 100 parts by weight of maleic anhydride grafted butadiene, 78 parts by weight of maleic anhydride grafted polypropylene, 85 parts by weight of high-benzene rubber powder, 90 parts by weight of nitrile rubber powder, 65 parts by weight of silicone powder, 34 parts by weight of calcium carbonate and 50 parts by weight of PP particles to obtain a compounded mixture, and extruding the compounded mixture through high-shear twin screws to prepare particles A; 460 parts of the pellet A, 28 parts of the DCP master batch and 20 parts of the TMPTMA are uniformly mixed by an internal mixer at 60 ℃, and are extruded by a single screw to prepare a pellet B, namely the thermoplastic elastomer composition.
Extruding the compound mixture through a double-screw extruder, wherein the barrel temperature of the double-screw extruder is as follows: the first zone is 135 ℃, the second zone is 180 ℃, the third zone is 195 ℃, the fourth zone is 190 ℃, the fifth zone is 200 ℃, the sixth zone is 200 ℃, the seventh zone is 200 ℃, the eighth zone is 180 ℃, the head is 180 ℃, and the rotating speed of the double-screw extruder is 350 revolutions per minute. Stirring the mixture by an internal mixer to 60 ℃, processing for 3 minutes, putting the mixture into a single screw extruder to extrude and granulate, wherein the temperature of a machine barrel of the single screw extruder is as follows: the first zone is 65 ℃, the second zone is 80 ℃, the third zone is 80 ℃, the fourth zone is 65 ℃, and the rotating speed of the main engine is 200 r/min.
The thermoplastic elastomer composition of this example was melted and injection molded to produce a plastic floor.
Example 3
The thermoplastic elastomer composition comprises the following components in parts by weight: the composition mainly comprises the following components in parts by weight: 120 parts of SEEPS, 85 parts of ethylene-octene block copolymer olefin, 150 parts of paraffin oil, 100 parts of maleic anhydride grafted butadiene, 100 parts of maleic anhydride grafted polypropylene, 60 parts of high benzene rubber powder, 60 parts of nitrile rubber powder, 56 parts of silicone powder, 58 parts of calcium carbonate and 50 parts of PP particles, and in addition, 38 parts of DCP master batch and 20 parts of TMPTMA are weighed.
The preparation method comprises the following steps: under the condition of 80 ℃, 120 parts by weight of SEEPS is fully stirred to be fluffy and non-caking state, 150 parts by weight of paraffin oil is added and stirred to be mixed to prepare oil-extended rubber material, then the oil-extended rubber material is evenly compounded with 85 parts by weight of ethylene-octene block copolymerized olefin, 100 parts by weight of maleic anhydride grafted butadiene, 100 parts by weight of maleic anhydride grafted polypropylene, 60 parts by weight of high-benzene rubber powder, 60 parts by weight of butadiene-acrylonitrile rubber powder, 56 parts by weight of silicone powder and 58 parts by weight of calcium carbonate, the compound mixture is extruded by a high-shear double screw to prepare particles A, the particles A are evenly mixed with 478 parts by weight of DCP master batch and 20 parts by weight of TMPTMA by an internal mixer at 60 ℃, and the particles B, namely the thermoplastic elastomer composition, are extruded by a single screw.
Extruding the compound mixture through a double-screw extruder, wherein the barrel temperature of the double-screw extruder is as follows: the first zone is 135 ℃, the second zone is 180 ℃, the third zone is 195 ℃, the fourth zone is 190 ℃, the fifth zone is 200 ℃, the sixth zone is 200 ℃, the seventh zone is 200 ℃, the eighth zone is 180 ℃, the head is 180 ℃, and the rotating speed of the double-screw extruder is 350 revolutions per minute. Stirring the mixture by an internal mixer to 60 ℃, processing for 3 minutes, putting the mixture into a single screw extruder to extrude and granulate, wherein the temperature of a machine barrel of the single screw extruder is as follows: the first zone is 65 ℃, the second zone is 80 ℃, the third zone is 80 ℃, the fourth zone is 65 ℃, and the rotating speed of the main engine is 200 r/min.
Example 4
The thermoplastic elastomer composition comprises the following components in parts by weight: the composition mainly comprises the following components in parts by weight: 120 parts of SEPS, 75 parts of ethylene-octene block copolymer olefin, 120 parts of paraffin oil, 76 parts of maleic anhydride grafted butadiene, 68 parts of maleic anhydride grafted polypropylene, 70 parts of high benzene rubber powder, 65 parts of nitrile rubber powder, 66 parts of silicone powder, 40 parts of calcium carbonate and 50 parts of PP particles, and in addition, 35 parts of DCP master batch and 24 parts of TMPTMA are weighed.
The preparation method comprises the following steps: under the condition of 80 ℃, 120 parts by weight of SEPS is fully stirred to be fluffy and non-caking state, 120 parts by weight of paraffin oil is added and stirred to be mixed to prepare oil-extended rubber material, then the oil-extended rubber material is uniformly compounded with 75 parts by weight of ethylene-octene block copolymerized olefin, 76 parts by weight of maleic anhydride grafted butadiene, 68 parts by weight of maleic anhydride grafted polypropylene, 70 parts by weight of high-benzene rubber powder, 65 parts by weight of butadiene-acrylonitrile rubber powder, 66 parts by weight of silicone powder, 40 parts by weight of calcium carbonate and 50 parts by weight of PP particles, the compound mixture is extruded by a high-shear double screw rod to prepare particles A, the particles A are uniformly mixed with 485 parts by weight of DCP master batch and 35 parts by weight of TMPTMA by an internal mixer at 60 ℃, and the particles B, namely the thermoplastic elastomer composition, are extruded by a single.
Extruding the compound mixture through a double-screw extruder, wherein the barrel temperature of the double-screw extruder is as follows: the first zone is 135 ℃, the second zone is 180 ℃, the third zone is 195 ℃, the fourth zone is 190 ℃, the fifth zone is 200 ℃, the sixth zone is 200 ℃, the seventh zone is 200 ℃, the eighth zone is 180 ℃, the head is 180 ℃, and the rotating speed of the double-screw extruder is 350 revolutions per minute. Stirring the mixture by an internal mixer to 60 ℃, processing for 3 minutes, putting the mixture into a single screw extruder to extrude and granulate, wherein the temperature of a machine barrel of the single screw extruder is as follows: the first zone is 65 ℃, the second zone is 80 ℃, the third zone is 80 ℃, the fourth zone is 65 ℃, and the rotating speed of the main engine is 200 r/min.
The thermoplastic elastomer composition of this example was melted and injection molded to produce a plastic floor.
Example 5
The thermoplastic elastomer composition comprises the following components in parts by weight: the composition mainly comprises the following components in parts by weight: 95 parts of SEEPS, 76 parts of ethylene-octene block copolymer olefin, 124 parts of paraffin oil, 66 parts of maleic anhydride grafted butadiene, 66 parts of maleic anhydride grafted polypropylene, 75 parts of high benzene rubber powder, 75 parts of nitrile rubber powder, 46 parts of silicone powder, 25 parts of calcium carbonate and 30 parts of PP particles, and in addition, 36 parts of DCP master batch, 21 parts of TMPTMA and 30 parts of PP particles are weighed.
The preparation method comprises the following steps: under the condition of 80 ℃, 95 parts by weight of SEEPS is fully stirred to be fluffy and non-caking state, 125 parts by weight of paraffin oil is added and stirred to be mixed to prepare oil-extended rubber material, then the oil-extended rubber material is uniformly compounded with 76 parts by weight of ethylene-octene block copolymerized olefin, 66 parts by weight of maleic anhydride grafted butadiene, 66 parts by weight of maleic anhydride grafted polypropylene, 75 parts by weight of high-benzene rubber powder, 75 parts by weight of nitrile rubber powder, 46 parts by weight of silicone powder, 25 parts by weight of calcium carbonate and 30 parts by weight of PP particles, the compound mixture is extruded by a high-shear double screw to prepare particles A, the 36 parts by weight of DCP master batch and 21 parts by weight of TMPTMA are uniformly mixed by an internal mixer at 60 ℃, and the particles B, namely the thermoplastic elastomer composition, are extruded by a single screw.
Extruding the compound mixture through a double-screw extruder, wherein the barrel temperature of the double-screw extruder is as follows: the first zone is 135 ℃, the second zone is 180 ℃, the third zone is 195 ℃, the fourth zone is 190 ℃, the fifth zone is 200 ℃, the sixth zone is 200 ℃, the seventh zone is 200 ℃, the eighth zone is 180 ℃, the head is 180 ℃, and the rotating speed of the double-screw extruder is 350 revolutions per minute. Stirring the mixture by an internal mixer to 60 ℃, processing for 3 minutes, putting the mixture into a single screw extruder to extrude and granulate, wherein the temperature of a machine barrel of the single screw extruder is as follows: the first zone is 65 ℃, the second zone is 80 ℃, the third zone is 80 ℃, the fourth zone is 65 ℃, and the rotating speed of the main engine is 200 r/min.
The thermoplastic elastomer composition of this example was melted and injection molded to produce a plastic floor.
Example 6
The thermoplastic elastomer composition comprises the following components in parts by weight: the composition mainly comprises the following components in parts by weight: 120 parts of SEEPS, 86 parts of ethylene-octene block copolymer olefin, 150 parts of paraffin oil, 120 parts of maleic anhydride grafted butadiene, 90 parts of maleic anhydride grafted polypropylene, 60 parts of high benzene rubber powder, 60 parts of nitrile rubber powder, 45 parts of silicone powder, 26 parts of calcium carbonate and 50 parts of PP particles, and in addition, 30 parts of DCP master batch and 20 parts of TMPTMA are weighed.
The preparation method comprises the following steps: under the condition of 80 ℃, 120 parts by weight of SEEPS is fully stirred to be fluffy and non-caking state, 150 parts by weight of paraffin oil is added and stirred to be mixed to prepare oil-extended rubber material, then the oil-extended rubber material is uniformly compounded with 86 parts by weight of ethylene-octene block copolymerization olefin, 120 parts by weight of maleic anhydride grafted butadiene, 90 parts by weight of maleic anhydride grafted polypropylene, 60 parts by weight of high-benzene rubber powder, 60 parts by weight of nitrile rubber powder, 45 parts by weight of silicone powder, 26 parts by weight of calcium carbonate and 50 parts by weight of PP particles, the compound mixture is extruded by a high-shear double screw to prepare particles A, 437 parts by weight of particles A, 30 parts by weight of DCP master batch and 20 parts by weight of TMPTMA are uniformly mixed by an internal mixer at 60 ℃, and are extruded by a single screw to prepare particles B, namely the thermoplastic elastomer composition.
Extruding the compound mixture through a double-screw extruder, wherein the barrel temperature of the double-screw extruder is as follows: the first zone is 135 ℃, the second zone is 180 ℃, the third zone is 195 ℃, the fourth zone is 190 ℃, the fifth zone is 200 ℃, the sixth zone is 200 ℃, the seventh zone is 200 ℃, the eighth zone is 180 ℃, the head is 180 ℃, and the rotating speed of the double-screw extruder is 350 revolutions per minute. Stirring the mixture by an internal mixer to 60 ℃, processing for 3 minutes, putting the mixture into a single screw extruder to extrude and granulate, wherein the temperature of a machine barrel of the single screw extruder is as follows: the first zone is 65 ℃, the second zone is 80 ℃, the third zone is 80 ℃, the fourth zone is 65 ℃, and the rotating speed of the main engine is 200 r/min.
The thermoplastic elastomer composition of this example was melted and injection molded to produce a plastic floor.
The hardness of the flooring prepared using the composition of the present example was lower than that of the conventional flooring and the impact absorption was 2 times higher than that of the conventional flooring, see the experimental data of table 1.
TABLE 1 floor Properties Using the thermoplastic elastomers of examples 1-6
The hardness is low, the accidental injury degree caused by severe actions such as starting, pedaling, jumping, sliding, running, limb collision and the like can be perfectly solved, and the presentation of the optimal state of the player is assisted through a professional sport ground system. The shock absorption is high, the buffer protection and the reactive strong resilience force formed by the floor are brought to severe actions such as starting, jumping by pedaling, sliding, braking and the like, the shock of the sport impulsive force to the knee, ankle and other joints is effectively relieved, the ankle joint, meniscus and other parts of a sporter are effectively protected from being damaged by vibration, the risk is reduced, and ideal sport experience is provided. And the rebound performance of the ball can also meet the requirement of the sports floor.
The notched Izod impact strength of the floor panels prepared in examples 1 to 6 was greater than 4.2N (kJ/m)2) And the wet skid resistance, the wear resistance and the weather resistance are higher than the requirements of the national standard on the floor.
In conclusion, the thermoplastic elastomer material provided by the embodiment of the invention is simple in preparation method, and can be prepared into the plastic floor through injection molding; the plastic floor has the advantages of wet skid resistance, wear resistance, weather resistance, ball resilience and impact absorbability, meets the requirements of national standards on the floor, has unexpected advantages in the aspects of hardness and impact absorbability on the premise of meeting various performance indexes, is low in hardness, has the impact absorbability 2 times that of a conventional floor, effectively relieves the impact of sports impulsive force on joints such as knees and ankles, effectively protects ankle joints, meniscus and the like of a sporter from being damaged by vibration, reduces risks and provides ideal sports experience; and the material prepared by the embodiment can be completely recycled, and the use performance of the material is not influenced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The thermoplastic elastomer composition is characterized by comprising the following raw material components in parts by weight:
75-120 parts of SEPS and/or SEEPS;
65-100 parts of ethylene-octene block copolymer olefin;
80-150 parts of paraffin oil;
66-120 parts of maleic anhydride grafted butadiene;
66-135 parts of maleic anhydride grafted polypropylene;
rubber powder, 120 and 175 parts;
45-66 parts of silicone powder;
25-58 parts of calcium carbonate;
30-50 parts of PP particles;
DCP master batch accounting for 3-8% of the total weight of the thermoplastic elastomer composition;
and 1.9% -10% of TMPTMA (tetramethylammonium methacrylate) by weight of the total thermoplastic elastomer composition;
the rubber powder is formed by mixing high benzene rubber powder and nitrile rubber powder.
2. The thermoplastic elastomer composition according to claim 1,
the SEPS and the SEEPS are hydrogenated styrene-isoprene-styrene thermoplastic elastomers;
the DCP master batch is dicumyl peroxide master batch with the purity of 40 percent;
the TMPTMA is trimethylolpropane trimethacrylate.
3. A method for producing a thermoplastic elastomer composition according to claim 1 or 2, characterized by comprising the steps of:
fully stirring the SEPS and/or the SEEPS at the temperature of 50-80 ℃ until no agglomeration exists, adding paraffin oil, and stirring and mixing to prepare an oil-extended rubber material;
uniformly compounding the oil-extended rubber material with ethylene-octene block copolymerized olefin, maleic anhydride grafted butadiene, maleic anhydride grafted polypropylene, rubber powder, silicone powder, calcium carbonate and PP particles, and preparing particles A by a double-screw extruder;
and uniformly mixing the particles A, the DCP master batches and the TMPTMA through an internal mixer, and obtaining the thermoplastic elastomer composition through a single-screw extruder.
4. The method of preparing a thermoplastic elastomer composition according to claim 3, wherein the barrel temperature of the twin-screw extruder is: the first zone is 130-.
5. The method of claim 3, wherein the single screw extruder has a barrel temperature of: the first zone is 60-80 ℃, the second zone is 80-100 ℃, the third zone is 80-100 ℃, the fourth zone is 60-80 ℃, and the rotating speed of the single-screw extruder is 50-200 r/min.
6. Use of the thermoplastic elastomer composition of claim 1 for making plastic flooring.
7. The use of the thermoplastic elastomer composition according to claim 6, wherein the thermoplastic elastomer composition is melt-molded and injection-molded to form a plastic floor.
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| CN116144186A (en) * | 2023-04-17 | 2023-05-23 | 成都思立可科技有限公司 | Organosilicon elastomer copolymer material and preparation method thereof |
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| CN101096440A (en) * | 2007-05-22 | 2008-01-02 | 深圳职业技术学院 | SEBS thermoplastic elastomer floor and manufacturing method thereof |
| CN105295284A (en) * | 2015-11-23 | 2016-02-03 | 东莞市技塑塑胶科技有限公司 | Special material with high resilience for grass of artificial turf and preparation method thereof |
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