WO2009084150A1 - 人工芝充填用粒状物および同人工芝充填用粒状物を充填してなる人工芝構造体 - Google Patents
人工芝充填用粒状物および同人工芝充填用粒状物を充填してなる人工芝構造体 Download PDFInfo
- Publication number
- WO2009084150A1 WO2009084150A1 PCT/JP2008/003513 JP2008003513W WO2009084150A1 WO 2009084150 A1 WO2009084150 A1 WO 2009084150A1 JP 2008003513 W JP2008003513 W JP 2008003513W WO 2009084150 A1 WO2009084150 A1 WO 2009084150A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- artificial turf
- turf
- filling
- granular material
- pile
- Prior art date
Links
- 238000011049 filling Methods 0.000 title claims abstract description 15
- 239000000126 substance Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 claims abstract description 24
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 24
- 230000005484 gravity Effects 0.000 claims abstract description 20
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 239000000806 elastomer Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000008187 granular material Substances 0.000 claims description 52
- 239000000463 material Substances 0.000 claims description 32
- 239000004744 fabric Substances 0.000 claims description 20
- 238000007542 hardness measurement Methods 0.000 claims description 6
- 239000011236 particulate material Substances 0.000 claims 2
- 238000004064 recycling Methods 0.000 abstract description 16
- 239000000945 filler Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 239000013618 particulate matter Substances 0.000 description 34
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 28
- 238000011156 evaluation Methods 0.000 description 28
- 238000010521 absorption reaction Methods 0.000 description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 description 14
- 230000035939 shock Effects 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 9
- -1 polypropylene Polymers 0.000 description 9
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 101100366060 Caenorhabditis elegans snap-29 gene Proteins 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000009732 tufting Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
- E01C13/083—Construction of grass-grown sports grounds; Drainage, irrigation or heating arrangements therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2201/00—Paving elements
- E01C2201/10—Paving elements having build-in shock absorbing devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to artificial turf filling granules to be filled between artificial turf piles, and more particularly to artificial turf filling granules to be recycled using used artificial turf.
- Artificial turf such as sand-filled artificial turf and long pile artificial turf are widely spread as various sports surfaces.
- artificial turf structures of this type need to be replaced with new artificial turf as the resin deteriorates and the pile breaks after the useful life has elapsed.
- Patent Document 1 discloses a recyclable artificial turf using nylon 6 as a material constituting the artificial turf. According to this, it is shown that by using nylon 6, it is possible to smoothly recycle the recovered artificial turf to the raw material.
- Patent Document 2 discloses an artificial lawn characterized in that a pile is fixed to a base fabric using a thermoplastic resin. According to this, artificial turf itself can be recycled as a regeneration raw material.
- Patent Documents 1 and 2 presuppose that the particulate matter filled in each case is completely removed from the artificial turf, the particulate matter is actually moistened or compacted by aged use. Therefore, it is almost impossible to completely remove the particulate matter in the pile.
- granular material to be filled in long pile artificial turf is obtained by laminating, for example, two layers of elastic granular material such as rubber chip and hard granular material such as eye sand. It was filling. Therefore, it is particularly difficult to recover particulate matter individually.
- the method of making the raw material which comprises an artificial turf the same as the raw material which comprises a granular material can be considered. According to this method, even if particulate matter is left between artificial turf piles, it can be treated as the same material, and material recycling is possible.
- the present invention is to provide a recycling technology for recycling used artificial turf in long pile artificial turf to make elastic granular material suitable for filling material of long pile artificial turf It is in.
- the present invention has the following features.
- the pile is implanted in the base cloth, and the back covering material for fixing the pile to the base cloth is provided on the back surface of the base cloth and filled between the piles of artificial turf
- the artificial turf filling granular material is made of artificial turf containing 50 wt% or more of a thermoplastic resin as a raw material, and an elastomer is further added to the raw material to form a granular form, and the specific gravity is 1.10 or more. It is characterized.
- the invention according to claim 2 is characterized in that, in the above-mentioned claim 1, the hardness measured by the hardness measurement according to JIS-K6253 type A method is 50 to 80.
- the invention according to claim 3 is characterized in that 95 wt% or more passes through the 2.83 mm sieve defined in JIS-Z8801 according to the JIS-K6316 method in the above-mentioned claim 1 or 2.
- the present invention also includes an artificial turf structure in which the artificial turf granules according to any one of claims 1 to 3 are packed between piles.
- the artificial turf containing 50 wt% or more of thermoplastic resin is used as a raw material, and an elastomer is further added to the raw material to form granules, and the specific gravity is 1.10 or more.
- the hardness of the particulate matter is 50 to 80 by the hardness measurement in accordance with JIS-K 6253 type A method, so even if the particulate matter is filled, the natural turf can be obtained. Similar properties can be obtained.
- the hardness of the granular material is less than 50, the granular material is deformed repeatedly because the treading pressure is repeatedly applied, which is not preferable.
- the hardness exceeds 80, the particulate matter becomes too hard, which causes abrasion and the like when sliding and the like, which is not preferable.
- the third aspect of the present invention even if it is filled in the artificial turf by using a granular material which passes 95 wt% or more of a 2.83 mm sieve specified by JIS-K6316 according to JIS-K6316 method, It is hard to be kicked out or scattered by the movement of people.
- FIG. 1 is a cross-sectional view of an essential part of an artificial turf structure according to an embodiment of the present invention.
- the artificial turf structure 1 has an artificial turf 3 laid on a base 2, and granular materials 5 are filled between piles 4 of the artificial turf 3.
- the base 2 uses a simple paved surface having the ground leveled, gravel or the like may be used in addition to the above, or an existing paved surface paved with asphalt or the like may be used. Furthermore, an elastic pavement or the like may be provided on the base 2.
- the configuration of the base 2 can be changed according to the specification and is an optional matter.
- the base fabric 31 is preferably selected from thermoplastic resins such as polypropylene and polyethylene, but in view of recyclability, low-density polyethylene having good meltability is more preferable.
- a plain weave cloth made of a synthetic resin such as polypropylene or polyethylene is used as the base cloth 31, but in addition to this, a cotton-like product of a synthetic resin may be planted by punching.
- the color of the base fabric 31 is arbitrarily determined according to a specification, when it is remade by the granular material, it is colored in colors other than black so that it may be hard to absorb the heat of the sun. preferable.
- the pile 4 is preferably a so-called long pile in which the pile length H from the surface of the base fabric 31 to the tip is as long as 40 to 75 mm.
- the pile 4 is preferably selected from thermoplastic resins such as polypropylene and polyethylene, but in view of recyclability, low density polyethylene having good meltability is more preferable.
- the pile 4 is colored green, but any color other than black may be used.
- the pile 4 may be a bundle of monotape yarns or monofilament yarns, or a strip-like split yarn.
- the pile 4 has a thickness of 8000 to 11000 dtex and is planted on the base fabric 31 with a planting amount of 1000 to 2000 g / m 3 .
- a backing material 32 (backing material) is uniformly applied in order to prevent the fall of the tufted pile 4.
- a thermosetting resin such as SBR latex or urethane is used as the backing material 32.
- an extender such as calcium carbonate is added.
- the backing material 32 is uniformly applied so that the application amount is 600 to 800 g / m 2 (during drying).
- the backing material 32 be colored in colors other than black in consideration of the color at the time of reproduction
- the base fabric 31 and the pile 4 are made of a thermoplastic resin such as polypropylene or polyethylene which is easy to heat and melt, in consideration of recyclability.
- a thermosetting resin such as SBR latex is used in consideration of workability and the like.
- the artificial turf 3 is made of a composite of a thermoplastic resin and a thermosetting resin. Therefore, when the artificial turf 3 is heated and melted, the thermosetting resin is uniformly dispersed in the thermoplastic resin and remains as a single material mixed with each other. Therefore, in the present invention, 50 wt% or more of the total resin amount of 100 wt% including the backing material 32 is configured to be made of a thermoplastic resin.
- thermoplastic resin when the thermoplastic resin is less than 50% by weight of the whole, even if the thermosetting resin such as the backing material 32 is contained, it is not uniformly dispersed in the molten thermoplastic resin, and as a single material It is not preferable because there is a possibility that it can not be handled.
- Backing material 32 fixes pile 4 and if dimensional stability of artificial turf 3 is satisfied, it is possible to select non-thermoplastic resin in consideration of processability, cost etc. It is more effective to use a relatively soft material such as SBR or urethane in order to impart such elasticity.
- the particulate matter 5 is filled between the piles 4 of the artificial turf 3 created in this way.
- the granular material 5 is formed into a granular shape by adding an elastomer to the artificial turf 3 as a material.
- the granular material 5 consists only of the regenerated granular material 5 formed by re-dissolving the used waste artificial turf 3 into a granular form, but the material constituting the artificial turf 3 is the same thermoplastic resin as the artificial turf As long as it contains a prescribed amount, it may be newly made.
- the granular material 5 produced in this manner preferably has a hardness of 50 to 80 as measured by hardness measurement in accordance with JIS-K6253 type A method. According to this, even if it is filled with a single type of regenerated granular material 5, it is possible to obtain properties similar to natural turf.
- the hardness of the granular material is less than 50, the granular material is deformed repeatedly because the tread pressure is repeatedly applied, which is not preferable.
- the hardness exceeds 80, the particulate matter becomes too hard, which causes abrasion and the like when sliding and the like, which is not preferable.
- the granular material 5 is produced by mixing an artificial turf with an elastomer, and since 50 wt% or more of the synthetic turf constituent material is a thermoplastic resin such as PP or PE, the specific gravity is It is expected to be less than 1.0.
- the granular material 5 is adjusted to have a specific gravity of 1.10 or more.
- a method of adding an additive such as calcium carbonate may be mentioned as an example of a method of increasing the specific gravity, the specific gravity may be increased by another method.
- the particulate matter 5 is preferably of a single type. That is, when the granular material 5 consists of a mixture of multiple types of heavy matter, when the granular material is removed from the artificial turf and refilled into a newly laid artificial turf, it must be separated according to type after removal from the artificial turf . Moreover, since the ratio extracted from the artificial turf 3 is uneven, there is a possibility that the artificial turf structure having the same property as that before regeneration can not be obtained even by the refilling.
- the particulate matter 5 is preferably colored in a predetermined color, and more preferably colored in colors other than black. According to this, by coloring the granular material 5 into, for example, a greenish or brownish color, not only it is possible to obtain an artificial turf or an aesthetic appearance close to the ground, but it absorbs sunlight and heat is weak. You can prevent it. For that purpose, it is preferable that the pile which comprises the artificial turf used as a raw material, base cloth, and backing material are except black.
- the filling thickness of the granular material 5 is arbitrarily selected according to the required elasticity, but in order to prevent the outflow and scattering of the granular material 5, the protrusion height h of the pile 4 (from the surface of the filled layer to the pile).
- the thickness is preferably such that the length to the tip is 10 to 30 mm or more.
- the used artificial turf 1 is recovered from the roadbed, heated, melted, and formed into a granular material, and then the regenerated granular material is again laid on the roadbed. Fill as a thing.
- artificial turf can be recycled as artificial turf application material, and a recycling type recycling system can be constructed.
- sample turf After laying the above artificial turf in a size of 1 m ⁇ 5 m on a roadbed and then filling the granular materials of Examples 1 to 4 and Comparative Examples 1 to 3 with a thickness of 30 mm, sample turf is manufactured. The following evaluations were made.
- Example 1 [The proportion of thermoplastic resin in artificial turf] 65% [Ratio of artificial turf recycling chip] 50% [Elastomer ratio] 30% [Calcium carbonate content] 20% [Evaluation of properties of particulate matter] [Specific gravity] 1.16, [weight passing through sieve] 98 wt%, [hardness] 75 [Evaluation of sample turf (at the time of construction)] [Shock absorption] 58%, [Scratching degree] almost none [Evaluation of sample turf (after half a year)] [Scattering of particulate matter] almost none, [shock absorption] 52%, [deformation of particulate matter] no deformation
- Example 2 [The proportion of thermoplastic resin in artificial turf] 65% [Ratio of artificial turf recycling chip] 30% [Elastomer ratio] 50% [Calcium carbonate content] 20% [Evaluation of properties of particulate matter] [Specific gravity] 1.12, [weight passing through sieve] 100 wt%, [hardness] 50 [Evaluation of sample turf (at the time of construction)] [Shock absorption] 54%, [Abrasion grade] None [Evaluation of sample turf (after half a year)] [Scattering of particulate matter] almost none, [shock absorption] 52%, [deformation of particulate matter] no deformation
- Example 3 [The proportion of thermoplastic resin of artificial turf] 75% [Ratio of artificial turf recycling chip] 50% [Elastomer ratio] 30% [Calcium carbonate content] 20% [Evaluation of properties of particulate matter] [Specific gravity] 1.15, [weight passing through sieve] 97 wt%, [hardness] 80 [Evaluation of sample turf (at the time of construction)] [Shock absorption] 52%, [Scratching degree] almost none [Evaluation of sample turf (after half a year)] [Scattering of particulate matter] almost none, [shock absorption] 50%, [deformation of particulate matter] no deformation
- Example 4 [The proportion of thermoplastic resin in artificial turf] 65% [Ratio of artificial turf recycling chip] 40% [Elastomer ratio] 40% [Calcium carbonate content] 20% [Evaluation of properties of particulate matter] [Specific gravity] 1.13, [weight passing through sieve] 96 wt%, [hardness] 65 [Evaluation of sample turf (at the time of construction)] [Shock absorption] 55%, [Abrasion grade] None [Evaluation of sample turf (after half a year)] [Scattering of particulate matter] almost none, [shock absorption] 40%, [deformation of particulate matter] no deformation
- Comparative Example 1 [The proportion of thermoplastic resin in artificial turf] 65% [Ratio of artificial turf recycling chip] 30% [Elastomer ratio] 60% [Calcium carbonate content] 10% [Evaluation of properties of particulate matter] [Specific gravity] 1.04, [weight passing through sieve] 95 wt%, [hardness] 65 [Evaluation of sample turf (at the time of construction)] [Shock absorption] 54%, [Abrasion grade] None [Evaluation of sample turf (after half a year)] [Scattering of particulate matter] Scattering, [shock absorption] 52%, [deformation of granular material] no deformation
- Comparative Example 3 [The proportion of thermoplastic resin in artificial turf] 65% [Ratio of artificial turf recycling chip] 70% [Elastomer ratio]-% [Calcium carbonate content] 30% [Evaluation of properties of particulate matter] [Specific gravity] 1.18, [weight passing through sieve] 97 wt%, [hardness] 96 [Evaluation of sample turf (at the time of construction)] [Shock absorption] 42%, [Abrasion grade] Scratches [Evaluation of sample turf (after half a year)] [Scattering of particulate matter] almost none, [shock absorption] 40%, [deformation of particulate matter] no deformation
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Abstract
Description
2 路盤
3 人工芝
31 基布
32 裏止め材
4 パイル
5 粒状物
低密度ポリエチレン製スプリットヤーン(太さ11000dtex)を目付量1300g/m2で芝丈50mmとなるようにポリプロピレン製基布(重量:100g/m2)にタフティングにより植設する。次に、SBRと炭酸カルシウムの混合物(混合比;SBR:炭酸カルシウム=1:2)をラテックスにしたものを裏止め材として、基布の裏面側に塗布したのち、ラテックスを乾燥させて人工芝を製造した。
このときの製品重量は2150g/m2であったので、裏止め材の乾燥重量は750g/m2(SBR250g/m2:炭酸カルシウム500g/m2)であると判断した。
〔粒状物の作製〕
新規に作成された上記人工芝を溶融して作製されたバルク材を粉砕してチップを作製した。これに表1に示すように、各実施例および各比較例に記載されたエラストマー(リケンテクノス社製LQA9102S(硬度:20°))や炭酸カルシウム(備北粉化工業社製BF300(比重2.7))を添加し、加熱混合して粒状物を作製した。
〔サンプル芝の施工〕
1m×5mの大きさで上記人工芝を路盤上に敷設したのち、各実施例1~4および各比較例1~3の粒状物を厚さ30mmで充填して、サンプル芝を作製したのち、以下の各評価を行った。
実施例1,2および比較例1~4の各サンプルをインジェクション成形にてφ28mm×H12.7mmの円柱状に形成したのち、JIS-K6253のタイプA法に準拠した硬度測定を行った。
〔ふるい計測評価〕
JIS-Z8801に規定される2.83mmふるいを用意し、このふるいを用いてJIS-K6316法に準拠した方法で粒状物300gをふるいにかけ、ふるいに残った粒状物の重量%を測定した。
〔衝撃吸収特性評価〕
施工後の各サンプル芝の衝撃吸収性をDIN18032衝撃吸収性試験にて評価した。
〔擦り傷の評価〕
サンプル芝の上を走り込んで滑り込み、擦り傷の程度を確認した。
〔経年性状評価〕
サンプル芝の上を自由に歩行できる状態で半年間放置し、粒状物の飛散状況、衝撃吸収性、変形の程度を目視にて確認した。
以下に、その測定結果を示す。
〔人工芝の熱可塑性樹脂の比率〕65%
〔人工芝リサイクルチップの比率〕50%
〔エラストマーの比率〕30%
〔炭酸カルシウム含有量〕20%
〔粒状物の性状評価〕
[比重]1.16,[ふるい通過重量]98wt%,[硬度]75
〔サンプル芝の評価(施工時)〕
[衝撃吸収性]58%,[擦り傷の程度]ほとんどなし
〔サンプル芝の評価(半年後)〕
[粒状物の飛散]ほとんどなし,[衝撃吸収性]52%,[粒状物の変形]変形なし
〔人工芝の熱可塑性樹脂の比率〕65%
〔人工芝リサイクルチップの比率〕30%
〔エラストマーの比率〕50%
〔炭酸カルシウム含有量〕20%
〔粒状物の性状評価〕
[比重]1.12,[ふるい通過重量]100wt%,[硬度]50
〔サンプル芝の評価(施工時)〕
[衝撃吸収性]54%,[擦り傷の程度]なし
〔サンプル芝の評価(半年後)〕
[粒状物の飛散]ほとんどなし,[衝撃吸収性]52%,[粒状物の変形]変形なし
〔人工芝の熱可塑性樹脂の比率〕75%
〔人工芝リサイクルチップの比率〕50%
〔エラストマーの比率〕30%
〔炭酸カルシウム含有量〕20%
〔粒状物の性状評価〕
[比重]1.15,[ふるい通過重量]97wt%,[硬度]80
〔サンプル芝の評価(施工時)〕
[衝撃吸収性]52%,[擦り傷の程度]ほとんどなし
〔サンプル芝の評価(半年後)〕
[粒状物の飛散]ほとんどなし,[衝撃吸収性]50%,[粒状物の変形]変形なし
〔人工芝の熱可塑性樹脂の比率〕65%
〔人工芝リサイクルチップの比率〕40%
〔エラストマーの比率〕40%
〔炭酸カルシウム含有量〕20%
〔粒状物の性状評価〕
[比重]1.13,[ふるい通過重量]96wt%,[硬度]65
〔サンプル芝の評価(施工時)〕
[衝撃吸収性]55%,[擦り傷の程度]なし
〔サンプル芝の評価(半年後)〕
[粒状物の飛散]ほとんどなし,[衝撃吸収性]40%,[粒状物の変形]変形なし
〔人工芝の熱可塑性樹脂の比率〕65%
〔人工芝リサイクルチップの比率〕30%
〔エラストマーの比率〕60%
〔炭酸カルシウム含有量〕10%
〔粒状物の性状評価〕
[比重]1.04,[ふるい通過重量]95wt%,[硬度]65
〔サンプル芝の評価(施工時)〕
[衝撃吸収性]54%,[擦り傷の程度]なし
〔サンプル芝の評価(半年後)〕
[粒状物の飛散]飛散あり,[衝撃吸収性]52%,[粒状物の変形]変形なし
〔人工芝の熱可塑性樹脂の比率〕45%
〔人工芝リサイクルチップの比率〕**%
〔エラストマーの比率〕**%
〔炭酸カルシウム含有量〕**%
〔粒状物の性状評価〕
[比重]***,[ふるい通過重量]**wt%,[硬度]**
〔サンプル芝の評価(施工時)〕
[衝撃吸収性]**%,[擦り傷の程度]**
〔サンプル芝の評価(半年後)〕
[粒状物の飛散]**,[衝撃吸収性]**%,[粒状物の変形]変形**
〔人工芝の熱可塑性樹脂の比率〕65%
〔人工芝リサイクルチップの比率〕70%
〔エラストマーの比率〕-%
〔炭酸カルシウム含有量〕30%
〔粒状物の性状評価〕
[比重]1.18,[ふるい通過重量]97wt%,[硬度]96
〔サンプル芝の評価(施工時)〕
[衝撃吸収性]42%,[擦り傷の程度]擦り傷発生
〔サンプル芝の評価(半年後)〕
[粒状物の飛散]ほとんどなし,[衝撃吸収性]40%,[粒状物の変形]変形なし
(1)比較例1は、比重が1.10以下であるため、飛散が激しい。
(2)比較例2は、人工芝を構成する素材に熱可塑性樹脂の比率が45%(50%未満)であるため、溶融しても材料が均一に混ざり合わずにリサイクルチップ自体を製造することができなかった。
(3)比較例3は、素材にエラストマーが添加されていないために、粒状物を作っても硬く、人工芝に充填して、スライディングなどした場合、擦り傷を発生させてしまうおそれがある。
Claims (4)
- 基布にパイルが植設され、上記基布の裏面には上記パイルを上記基布に固定する裏止め材が設けられている人工芝の上記パイル間に充填される人工芝充填用粒状物において、
熱可塑性樹脂を50wt%以上含有する上記人工芝を素材とし、上記素材にエラストマーをさらに添加して粒状に形成され、比重が1.10以上であることを特徴とする人工芝充填用粒状物。 - 請求項1に記載の人工芝充填用粒状物において、JIS-K6253のタイプA法に準拠する硬度測定で測定した硬度が50~80である。
- 請求項1または2に記載の人工芝充填用粒状物において、JIS-K6316法によりJIS-Z8801に規定される2.83mmふるいを95wt%以上が通過する。
- 上記請求項1ないし3のいずれか1項に記載の人工芝充填用粒状物をパイル間に充填してなることを特徴とする人工芝構造体。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08868600.1A EP2236672B1 (en) | 2007-12-27 | 2008-11-28 | Method of manufacturing a particulate substance for filling artificial turf |
US12/808,352 US20110189408A1 (en) | 2007-12-27 | 2008-11-28 | Particulate substance for filling artificial turf and artificial turf structure filled with the particulate substance for filling artificial turf |
CN200880122657.8A CN101910519B (zh) | 2007-12-27 | 2008-11-28 | 人造草坪填充用粒状物及其人造草坪构造体 |
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JP2007335528A JP4502400B2 (ja) | 2007-12-27 | 2007-12-27 | 人工芝充填用粒状物および同人工芝充填用粒状物を充填してなる人工芝構造体 |
JP2007-335528 | 2007-12-27 |
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WO2009084150A1 true WO2009084150A1 (ja) | 2009-07-09 |
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PCT/JP2008/003513 WO2009084150A1 (ja) | 2007-12-27 | 2008-11-28 | 人工芝充填用粒状物および同人工芝充填用粒状物を充填してなる人工芝構造体 |
Country Status (6)
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US (1) | US20110189408A1 (ja) |
EP (1) | EP2236672B1 (ja) |
JP (1) | JP4502400B2 (ja) |
KR (1) | KR20100106342A (ja) |
CN (1) | CN101910519B (ja) |
WO (1) | WO2009084150A1 (ja) |
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US11131068B2 (en) | 2018-04-02 | 2021-09-28 | Columbia Insurance Company | Shock pad for synthetic turf and methods for making same |
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EP2216443B1 (en) * | 2007-10-30 | 2013-08-28 | Guangzhou Act Corporation | An artificial turf and a method thereof |
CA2719808A1 (en) * | 2008-03-27 | 2009-10-01 | So.F.Ter.-S.P.A. | Polymer granules suitable as infill material for artificial turf structures |
JP4623750B2 (ja) * | 2008-05-13 | 2011-02-02 | 住友ゴム工業株式会社 | 人工芝充填用粒状物および同人工芝充填用粒状物を充填してなる人工芝構造体 |
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US20170058464A1 (en) * | 2015-09-02 | 2017-03-02 | Tarkett Inc. | Protective binding layer |
US10645870B2 (en) | 2016-06-01 | 2020-05-12 | Tarkett Inc. | Apparatus and methods for revitalizing artificial turf fields |
BE1030452B1 (nl) * | 2022-04-15 | 2023-11-14 | Sports And Leisure Group Nv | Schokdempende laag voor een kunstgrasinrichting alsook werkwijze voor de vervaardiging hiervan |
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US11131068B2 (en) | 2018-04-02 | 2021-09-28 | Columbia Insurance Company | Shock pad for synthetic turf and methods for making same |
Also Published As
Publication number | Publication date |
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CN101910519B (zh) | 2012-10-31 |
EP2236672A4 (en) | 2015-09-02 |
EP2236672B1 (en) | 2018-03-21 |
JP4502400B2 (ja) | 2010-07-14 |
EP2236672A1 (en) | 2010-10-06 |
JP2009155914A (ja) | 2009-07-16 |
CN101910519A (zh) | 2010-12-08 |
KR20100106342A (ko) | 2010-10-01 |
US20110189408A1 (en) | 2011-08-04 |
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