CN106366455A - Low-temperature and high-impact resistance polypropylene random material - Google Patents
Low-temperature and high-impact resistance polypropylene random material Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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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- C08J2323/06—Polyethene
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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
- C08J2323/10—Homopolymers or copolymers of propene
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Abstract
The invention provides a low-temperature and high-impact resistance polypropylene random material. A PPR (polypropylene random) pipe comprises the following raw materials in parts by weight: 1.5-3 parts of color masterbatch, 8-20 parts of a toughening agent, 4-20 parts of rigid particles, 73-87.5 parts of PPR, 40-50 parts of a polyolefin resin mixture and 3-10 parts of a modifier. Through addition of an elastomer, the toughness of the low-temperature and high-impact resistance polypropylene random material is improved and thus the rigidity loss of a product is caused; further through addition of the rigid inorganic nanoparticles with the sizes of 5-5000 nanometers, and through surface modification, the compatibility with a base material is improved, the rigidity of the product is improved and the integral effect of the product is ensured.
Description
Technical field
The present invention relates to Production of Plastic Building Materials field, specifically relate to a kind of kind of an atactic copolymerized polypropene material for low temperature high impact-resistant
Material method.
Background technology
Atactic copolymerized polypropene (ppr) pipe is widely used in the conveying of public and civil buildings hot and cold water, heating, air-conditioning duct and
Agricultural irrigation systems, it has excellent heat resistance, shock resistance, and health is nontoxic, heat preservation energy-saving, long service life and heat
The advantages of molten connection, but because its low-temperature flexibility is not enough, easily produces stress induced cracking, limit its application.
Content of the invention
For above problems of the prior art, the invention provides a kind of random copolymerization of low temperature high impact-resistant gathers
Propylene material method.
The present invention is achieved by the following technical solutions:
A kind of polypropylene random copolymer material of low temperature high impact-resistant, the parts by weight of raw materials of ppr tubing is as follows:
Masterbatch is 1.5-3 part, toughener is 8-20 part, rigid particles 4-20 part, and ppr is 73-87.5 part, polyolefin tree
Lipoprotein mixture is 40-50 part, modifying agent 3-10 part.
Further, described Masterbatch is with polyethylene, polypropylene or ethylene-vinyl acetate copolymer as main carrier, adds
Bonus point powder, ultraviolet (UV) resistant agent, antistatic additive and white carbon black, titanium dioxide, phthalocyanine blue, after dark green, extruded pelletize formed
Grain thing.
Further, described toughener is ethylene-octene copolymer, ethylene-propylene-diene copolymer, styrene-fourth
Styrene ternary block polymer, SEBS ternary block polymer, styrene-isoamyl
One of styrene ternary block polymer, hydrogenated styrene isoprene-polystyrene ternary segmented copolymer are many
Plant mixing.
Further, described rigid particles by the inorganic nano Calcium Carbonate 20-30 weight portion for 5nm-5000nm for the particle diameter,
Eva material is 10-15 weight portion, aluminium oxide 20-25 weight portion and ferrum oxide 30-50 weight portion heating melting mixing form.
Further, described modifying agent be styrene series thermoplastic elastomer sbs, hydrogenated styrene-butadiene block altogether
The mixture of one or more of polymers sebs, TPO or polyolefin plastomers.
Further, described polyolefin resin mixture be ultra-high molecular weight polyethylene, Low Density Polyethylene, linearly low close
Degree polyethylene, medium density polyethylene, high density polyethylene (HDPE), polypropylene, ethylene propylene copolymer, POE, ethylene
The mixture of two or more in hexene copolymer, ethylene and butylene copolymer, polybutene.
Further, its preparation method is as follows:
1) mix: the material of claim 1 weight portion is carried out homogeneous blend；
2) modified: mixed for step 1 material to be transferred to banbury banburying fusion modification, forms molten embryo, wherein, banburying
Temperature be 210 DEG C, the rotating speed 30r/min of banbury, in banbury the melting mixing time be 8min；
3) pelletize: modified molten embryo in step 2 is entered single screw extrusion machine extruding pelletization；
4) extrude: the pellet of modified for step 3 pelletize is passed through Single screw extrusion main frame, is extruded by mould；
5) shape: the material of extrusion in step 4 is carried out cooling and shaping by 3 sections of sizing water tanks；
6) molding: by the material after cooling and shaping in step 5, offline by traction machine, cutting machine and reprint frame, after obtain
Ppr tubing；
7) finished product: the tubing of step 6 is made annealing treatment, more quickly cools down, finally naturally cool to room temperature.
The invention has the benefit that the present invention passes through to add the toughness that elastomer improves material, product rigidity can be led to
There is loss, pass through to add the inorganic nano-particle of rigidity, size 5nm-5000nm, and surface modification further, improve and base material
Compatibility, the rigidity improving product is it is ensured that the whole structure of product.
Specific embodiment
Embodiment 1
Masterbatch is 1.5 parts, ethylene-octene copolymer, ethylene-propylene-diene copolymer and styrene-butadiene-
Polystyrene ternary segmented copolymer is 8 parts, 4 parts of rigid particles, and ppr is 73 parts, ultra-high molecular weight polyethylene, low density polyethylene
Alkene, linear low density polyethylene and medium density polyethylene are 40 parts, styrene series thermoplastic elastomer sbs3 part.Wherein, color masterbatch
Grain is with polyethylene, polypropylene or ethylene-vinyl acetate copolymer as main carrier, adds dispersant, ultraviolet (UV) resistant agent, antistatic
After agent and white carbon black, titanium dioxide, phthalocyanine blue, dark green, the particulate matter that extruded pelletize is formed.And rigid particles are 5nm- by particle diameter
The inorganic nano Calcium Carbonate 20-30 weight portion of 5000nm, eva material are 10-15 weight portion, aluminium oxide 20-25 weight portion and oxygen
Change ferrum 30-50 weight portion heating melting mixing to form.
Its preparation method is as follows: the material of above-mentioned weight portion is carried out homogeneous blend；Aforementioned mixed material is shifted
Fuse to banbury banburying modified, form molten embryo, wherein, the temperature of banburying is 210 DEG C, the rotating speed 30r/min of banbury, banburying
In machine, the melting mixing time is 8min；In will be aforementioned, modified molten embryo enters single screw extrusion machine extruding pelletization；Change aforementioned
Property after pelletize pellet pass through Single screw extrusion main frame, extruded by mould；By the material of aforementioned middle extrusion by 3 sections of sizing water
Case carries out cooling and shaping；By the material after aforementioned cooling and shaping, offline by traction machine, cutting machine and reprint frame, after obtain ppr
Tubing；Aforementioned tubing is made annealing treatment, is more quickly cooled down, finally naturally cooled to room temperature.Wherein, rigid particles by
Particle diameter is inorganic nano Calcium Carbonate 20 weight portion of 5nm-5000nm, eva material is 10 weight portions, aluminium oxide 20 weight portion and oxygen
Change ferrum 30 weight portion heating melting mixing to form.Modifying agent is styrene series thermoplastic elastomer sbs, hydrogenated styrene-fourth two
The mixture of one or more of alkene block copolymer sebs, TPO or polyolefin plastomers.
Embodiment 2
Masterbatch is 1.8 parts, SEBS ternary block polymer is 10 parts, rigid particles 8
Part, ppr is 78 parts, and ultra-high molecular weight polyethylene, Low Density Polyethylene and linear low density polyethylene are 42 parts, hydrogenation of benzene second
Alkene-butadiene block copolymer sebs4 part.Wherein, Masterbatch is with polyethylene, polypropylene or ethylene-vinyl acetate copolymer
For main carrier, after adding dispersant, ultraviolet (UV) resistant agent, antistatic additive and white carbon black, titanium dioxide, phthalocyanine blue, dark green, extruded make
The particulate matter that particle shape becomes.Rigid particles are by the inorganic nano Calcium Carbonate 20-30 weight portion for 5nm-5000nm for the particle diameter, eva material
Form for 10-15 weight portion, aluminium oxide 20-25 weight portion and ferrum oxide 30-50 weight portion heating melting mixing.
Its preparation method is as follows: the material of above-mentioned weight portion is carried out homogeneous blend；Aforementioned mixed material is shifted
Fuse to banbury banburying modified, form molten embryo, wherein, the temperature of banburying is 210 DEG C, the rotating speed 30r/min of banbury, banburying
In machine, the melting mixing time is 8min；In will be aforementioned, modified molten embryo enters single screw extrusion machine extruding pelletization；Change aforementioned
Property after pelletize pellet pass through Single screw extrusion main frame, extruded by mould；By the material of aforementioned middle extrusion by 3 sections of sizing water
Case carries out cooling and shaping；By the material after aforementioned cooling and shaping, offline by traction machine, cutting machine and reprint frame, after obtain ppr
Tubing；Aforementioned tubing is made annealing treatment, is more quickly cooled down, finally naturally cooled to room temperature.Wherein, rigid particles by
Particle diameter is inorganic nano Calcium Carbonate 23 weight portion of 5nm-5000nm, eva material is 11 weight portions, aluminium oxide 22 weight portion and oxygen
Change ferrum 35 weight portion heating melting mixing to form.Modifying agent is styrene series thermoplastic elastomer sbs, hydrogenated styrene-fourth two
The mixture of one or more of alkene block copolymer sebs, TPO or polyolefin plastomers.
Embodiment 3
Masterbatch be 2.0 parts, ethylene-propylene-diene copolymer, s-B-S tri-block copolymerization
Thing, SEBS ternary block polymer and styrene-isoprene-phenylethene tri-block copolymerization
Thing is 15 parts, 10 parts of rigid particles, and ppr is 80 parts, medium density polyethylene, high density polyethylene (HDPE), polypropylene, ethylene propylene copolymer
Thing and POE are 45 parts, 5 parts of polyolefin plastomers.Wherein, Masterbatch be with polyethylene, polypropylene or ethylene-
Acetate ethylene copolymer is main carrier, adds dispersant, ultraviolet (UV) resistant agent, antistatic additive and white carbon black, titanium dioxide, phthalocyanine blue, phthalein
After viridescent, the particulate matter that extruded pelletize is formed.
Rigid particles are 10-15 by the inorganic nano Calcium Carbonate 20-30 weight portion for 5nm-5000nm for the particle diameter, eva material
Weight portion, aluminium oxide 20-25 weight portion and ferrum oxide 30-50 weight portion heating melting mixing form.
Its preparation method is as follows: the material of above-mentioned weight portion is carried out homogeneous blend；Aforementioned mixed material is shifted
Fuse to banbury banburying modified, form molten embryo, wherein, the temperature of banburying is 210 DEG C, the rotating speed 30r/min of banbury, banburying
In machine, the melting mixing time is 8min；In will be aforementioned, modified molten embryo enters single screw extrusion machine extruding pelletization；Change aforementioned
Property after pelletize pellet pass through Single screw extrusion main frame, extruded by mould；By the material of aforementioned middle extrusion by 3 sections of sizing water
Case carries out cooling and shaping；By the material after aforementioned cooling and shaping, offline by traction machine, cutting machine and reprint frame, after obtain ppr
Tubing；Aforementioned tubing is made annealing treatment, is more quickly cooled down, finally naturally cooled to room temperature.Wherein, rigid particles by
Particle diameter is inorganic nano Calcium Carbonate 25 weight portion of 5nm-5000nm, eva material is 12 weight portions, aluminium oxide 23 weight portion and oxygen
Change ferrum 40 weight portion heating melting mixing to form.Modifying agent is styrene series thermoplastic elastomer sbs, hydrogenated styrene-fourth two
The mixture of one or more of alkene block copolymer sebs, TPO or polyolefin plastomers.
Embodiment 4
Masterbatch is 2.5 parts, SEBS ternary block polymer and styrene-isoamyl two
Alkene-polystyrene ternary segmented copolymer is 18 parts, 15 parts of rigid particles, and ppr is 86 parts, ethylene hexene copolymer, ethylene and fourth
Alkene copolymer and polybutene are 48 parts, 8 parts of TPO.Wherein, Masterbatch is with polyethylene, polypropylene or second
Alkene-acetate ethylene copolymer is main carrier, add dispersant, ultraviolet (UV) resistant agent, antistatic additive and white carbon black, titanium dioxide, phthalocyanine blue,
After dark green, the particulate matter that extruded pelletize is formed.
Rigid particles are 10-15 by the inorganic nano Calcium Carbonate 20-30 weight portion for 5nm-5000nm for the particle diameter, eva material
Weight portion, aluminium oxide 20-25 weight portion and ferrum oxide 30-50 weight portion heating melting mixing form.
Its preparation method is as follows: the material of above-mentioned weight portion is carried out homogeneous blend；Aforementioned mixed material is shifted
Fuse to banbury banburying modified, form molten embryo, wherein, the temperature of banburying is 210 DEG C, the rotating speed 30r/min of banbury, banburying
In machine, the melting mixing time is 8min；In will be aforementioned, modified molten embryo enters single screw extrusion machine extruding pelletization；Change aforementioned
Property after pelletize pellet pass through Single screw extrusion main frame, extruded by mould；By the material of aforementioned middle extrusion by 3 sections of sizing water
Case carries out cooling and shaping；By the material after aforementioned cooling and shaping, offline by traction machine, cutting machine and reprint frame, after obtain ppr
Tubing；Aforementioned tubing is made annealing treatment, is more quickly cooled down, finally naturally cooled to room temperature.Wherein, rigid particles by
Particle diameter is inorganic nano Calcium Carbonate 28 weight portion of 5nm-5000nm, eva material is 14 weight portions, aluminium oxide 24 weight portion and oxygen
Change ferrum 45 weight portion heating melting mixing to form.Modifying agent is styrene series thermoplastic elastomer sbs, hydrogenated styrene-fourth two
The mixture of one or more of alkene block copolymer sebs, TPO or polyolefin plastomers.
Embodiment 5
Masterbatch is 3 parts, hydrogenated styrene isoprene-polystyrene ternary segmented copolymer is 20 parts, rigid particles 20
Part, ppr is 87.5 parts, ethylene propylene copolymer, POE, ethylene hexene copolymer, ethylene and butylene copolymer
It is 50 parts, hydrogenated styrene-butadiene block copolymer sebs10 part with polybutene.Wherein, Masterbatch be with polyethylene, poly- third
Alkene or ethylene-vinyl acetate copolymer are main carrier, add dispersant, ultraviolet (UV) resistant agent, antistatic additive and white carbon black, titanium dioxide,
After phthalocyanine blue, dark green, the particulate matter that extruded pelletize is formed.
Rigid particles are 10-15 by the inorganic nano Calcium Carbonate 20-30 weight portion for 5nm-5000nm for the particle diameter, eva material
Weight portion, aluminium oxide 20-25 weight portion and ferrum oxide 30-50 weight portion heating melting mixing form.
Its preparation method is as follows: the material of above-mentioned weight portion is carried out homogeneous blend；Aforementioned mixed material is shifted
Fuse to banbury banburying modified, form molten embryo, wherein, the temperature of banburying is 210 DEG C, the rotating speed 30r/min of banbury, banburying
In machine, the melting mixing time is 8min；In will be aforementioned, modified molten embryo enters single screw extrusion machine extruding pelletization；Change aforementioned
Property after pelletize pellet pass through Single screw extrusion main frame, extruded by mould；By the material of aforementioned middle extrusion by 3 sections of sizing water
Case carries out cooling and shaping, and wherein water tank temperature is 18-25 DEG C of coolant water temperature；By the material after aforementioned cooling and shaping, by traction
Machine, cutting machine and reprint frame are offline, after obtain ppr tubing；Aforementioned tubing is made annealing treatment, is more quickly cooled down, certainly finally
So it is cooled to room temperature.Wherein, rigid particles are by inorganic nano Calcium Carbonate 30 weight portion for 5nm-5000nm for the particle diameter, eva
Material is 15 weight portions, aluminium oxide 25 weight portion and ferrum oxide 50 weight portion heating melting mixing form.Modifying agent is styrene
Based thermoplastic elastomer sbs, hydrogenated styrene-butadiene block copolymer sebs, TPO or polyolefin
The mixture of one or more of plastic body.
After in ppr resin, amount weighs elastomer and inorganic nano Calcium Carbonate by a certain percentage, (gross weight is physical mixed
50g), uniformly after breathe out general torque rheometer in melting mixing.Instrument setup parameter: temperature is 210 DEG C, rotating speed 30r/min, melts
Melting mixing time is 8min.For mechanical property, multiple banburying simultaneously crushes；For other tests, prepared a certain amount standing 12
It is used for testing and analyzing more than hour.
Shock-testing: notched impact properties test is carried out according to gb1093 standard, a size of 80mm × 10mm × 3.2mm,
8 values of every group of sample testing, finally average, that is, the former ppr of notch impact strength is 8kj/m, and modified 15.83,16.42,
16.08,15.98,15.78,16.32,16.03,16.34.
The longitudinal welds of ppr tubing be 1.2%, in hydrostatic test, when experimental condition be respectively 20 DEG C, 1h,
16mpa, 95 DEG C, 22h, 4.2mpa, 95 DEG C, 165h, 3.8mpa, 95 DEG C, 1000h, 3.5mpa when, low-temperature impact resistance ppr pipe
Material equal crack-free ne-leakage.
Claims (7)
1. a kind of polypropylene random copolymer material of low temperature high impact-resistant it is characterised in that: the parts by weight of raw materials of ppr tubing is such as
Under:
Masterbatch is 1.5-3 part, toughener is 8-20 part, rigid particles 4-20 part, and ppr is 73-87.5 part, and vistanex mixes
Compound is 40-50 part, modifying agent 3-10 part.
2. a kind of low temperature high impact-resistant according to claim 1 polypropylene random copolymer material it is characterised in that: described
Masterbatch is with polyethylene, polypropylene or ethylene-vinyl acetate copolymer as main carrier, adds dispersant, ultraviolet (UV) resistant agent, resists
After electrostatic agent and white carbon black, titanium dioxide, phthalocyanine blue, dark green, the particulate matter that extruded pelletize is formed.
3. a kind of low temperature high impact-resistant according to claim 1 polypropylene random copolymer material it is characterised in that: described
Toughener is ethylene-octene copolymer, ethylene-propylene-diene copolymer, s-B-S tri-block are common
Polymers, SEBS ternary block polymer, styrene-isoprene-phenylethene tri-block are altogether
The multiple mixing of one of polymers, hydrogenated styrene isoprene-polystyrene ternary segmented copolymer.
4. a kind of low temperature high impact-resistant according to claim 1 polypropylene random copolymer material it is characterised in that: described
Rigid particles are 10-15 weight portion, oxygen by the inorganic nano Calcium Carbonate 20-30 weight portion for 5nm-5000nm for the particle diameter, eva material
Change aluminum 20-25 weight portion and ferrum oxide 30-50 weight portion heating melting mixing forms.
5. a kind of low temperature high impact-resistant according to claim 1 polypropylene random copolymer material it is characterised in that: described
Modifying agent is styrene series thermoplastic elastomer sbs, hydrogenated styrene-butadiene block copolymer sebs, polylefin thermoplatic
The mixture of one or more of elastomer or polyolefin plastomers.
6. a kind of low temperature high impact-resistant according to claim 1 polypropylene random copolymer material it is characterised in that: described
Polyolefin resin mixture is ultra-high molecular weight polyethylene, Low Density Polyethylene, linear low density polyethylene, the poly- second of Midst density
Alkene, high density polyethylene (HDPE), polypropylene, ethylene propylene copolymer, POE, ethylene hexene copolymer, ethylene and fourth
The mixture of two or more in alkene copolymer, polybutene.
7. a kind of low temperature high impact-resistant according to claim 1 polypropylene random copolymer material it is characterised in that: its system
Preparation Method is as follows:
1) mix: the material of claim 1 weight portion is carried out homogeneous blend；
2) modified: mixed for step 1 material to be transferred to banbury banburying fusion modification, forms molten embryo, wherein, the temperature of banburying
Spend for 210 DEG C, the rotating speed 30r/min of banbury, in banbury, the melting mixing time is 8min；
3) pelletize: modified molten embryo in step 2 is entered single screw extrusion machine extruding pelletization；
4) extrude: the pellet of modified for step 3 pelletize is passed through Single screw extrusion main frame, is extruded by mould；
5) shape: the material of extrusion in step 4 is carried out cooling and shaping by 3 sections of sizing water tanks；
6) molding: by the material after cooling and shaping in step 5, offline by traction machine, cutting machine and reprint frame, after obtain ppr
Tubing；
7) finished product: the tubing of step 6 is made annealing treatment, more quickly cools down, finally naturally cool to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742082.6A CN106366455A (en) | 2016-08-26 | 2016-08-26 | Low-temperature and high-impact resistance polypropylene random material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610742082.6A CN106366455A (en) | 2016-08-26 | 2016-08-26 | Low-temperature and high-impact resistance polypropylene random material |
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| CN106366455A true CN106366455A (en) | 2017-02-01 |
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| CN201610742082.6A Pending CN106366455A (en) | 2016-08-26 | 2016-08-26 | Low-temperature and high-impact resistance polypropylene random material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832597A (en) * | 2017-04-16 | 2017-06-13 | 东莞市杰安塑胶五金科技有限公司 | A kind of RPP modified composite materials |
| CN107841050A (en) * | 2017-02-24 | 2018-03-27 | 金发科技股份有限公司 | A kind of low-temperature impact-resistant polypropylene composition |
| CN108864573A (en) * | 2018-08-14 | 2018-11-23 | 含山县胜发塑料制品有限公司 | A kind of turnover box high-strength low-temperature-resistant material |
| CN109517273A (en) * | 2018-11-14 | 2019-03-26 | 陈云 | A kind of PPR feed pipe and preparation method thereof |
| CN109575445A (en) * | 2017-09-29 | 2019-04-05 | 中国石化扬子石油化工有限公司 | A kind of Flexible toothbrush handle polypropylene material and preparation method thereof |
| CN110130182A (en) * | 2019-05-23 | 2019-08-16 | 广东腾克体育发展有限公司 | A kind of playground mats and its production method, production equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841050A (en) * | 2017-02-24 | 2018-03-27 | 金发科技股份有限公司 | A kind of low-temperature impact-resistant polypropylene composition |
| CN106832597A (en) * | 2017-04-16 | 2017-06-13 | 东莞市杰安塑胶五金科技有限公司 | A kind of RPP modified composite materials |
| CN109575445A (en) * | 2017-09-29 | 2019-04-05 | 中国石化扬子石油化工有限公司 | A kind of Flexible toothbrush handle polypropylene material and preparation method thereof |
| CN108864573A (en) * | 2018-08-14 | 2018-11-23 | 含山县胜发塑料制品有限公司 | A kind of turnover box high-strength low-temperature-resistant material |
| CN109517273A (en) * | 2018-11-14 | 2019-03-26 | 陈云 | A kind of PPR feed pipe and preparation method thereof |
| CN110130182A (en) * | 2019-05-23 | 2019-08-16 | 广东腾克体育发展有限公司 | A kind of playground mats and its production method, production equipment |
| CN110130182B (en) * | 2019-05-23 | 2021-04-27 | 广东腾克体育发展有限公司 | Playground mat and production method and production equipment thereof |
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