JP2000044907A - Adhesive for biodegradable aggregate and biodegradable molded article - Google Patents
Adhesive for biodegradable aggregate and biodegradable molded articleInfo
- Publication number
- JP2000044907A JP2000044907A JP11144809A JP14480999A JP2000044907A JP 2000044907 A JP2000044907 A JP 2000044907A JP 11144809 A JP11144809 A JP 11144809A JP 14480999 A JP14480999 A JP 14480999A JP 2000044907 A JP2000044907 A JP 2000044907A
- Authority
- JP
- Japan
- Prior art keywords
- biodegradable
- adhesive
- aggregate
- molded article
- additive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、生分解性骨材用の
接着剤及び生分解性成形品に関する。The present invention relates to an adhesive for biodegradable aggregate and a biodegradable molded product.
【０００２】[0002]
【従来の技術】生分解性をＰＲポイントとする、生分解
性骨材を使用した商品開発が進められているが、要求さ
れる耐水性・耐磨耗性等で、満足する接着剤はなかっ
た。これに対処するために、生分解性骨材の接着には、
生分解性を有しない合成接着剤が用いられている。2. Description of the Related Art Although biodegradable aggregates having biodegradability as a PR point are being developed, there is no satisfactory adhesive because of required water resistance and abrasion resistance. Was. To address this, the bonding of biodegradable aggregates involves:
A synthetic adhesive having no biodegradability is used.
【０００３】[0003]
【発明が解決しようとする課題】木屑やおが粉は、例え
ば製材工程より排出されるので資源の有効利用となるの
だが、接着剤として合成樹脂例えばポリウレタン樹脂、
ポリエステル樹脂、過酸化物架橋タイプのアクリル樹
脂、アスファルトエマルジョン、湿気硬化型ポリウレタ
ン樹脂等の常温で硬化する反応型樹脂を使用していた。
このため、木屑やおが粉自体は生分解性であるとしても
接着剤が生分解性ではなかったので、例えば劣化したボ
ードを廃棄する場合は、生分解性のない廃棄物となり、
環境に負荷を与えていた。Wood chips and sawdust are discharged from, for example, a sawmilling process, thereby making effective use of resources. However, synthetic resin such as polyurethane resin is used as an adhesive.
Reactive resins that cure at room temperature, such as polyester resins, peroxide-crosslinkable acrylic resins, asphalt emulsions, and moisture-curable polyurethane resins, have been used.
For this reason, even if wood chips and sawdust themselves are biodegradable, the adhesive was not biodegradable, so when discarding a deteriorated board, for example, it would be a non-biodegradable waste,
It was burdening the environment.
【０００４】またボード以外でも、例えばリサイクルを
目的として、古紙、竹屑、穀物滓等の生分解性骨材を合
成樹脂の接着剤にて成形した成形品が各種知られている
が、廃棄時にはその処理が必要な点では変わりがなかっ
た。本発明は、木屑やおが粉等の生分解性骨材を用いる
成形品の廃棄に当たって、特別な処理を不要とし、環境
への負荷を回避することを目的としている。[0004] In addition to boards, for example, for the purpose of recycling, there are known various molded articles formed by molding biodegradable aggregates such as waste paper, bamboo waste, and grain slag with a synthetic resin adhesive. There was no change in the need for that treatment. An object of the present invention is to eliminate the burden on the environment by eliminating the need for special treatment when disposing of molded articles using biodegradable aggregates such as wood chips and sawdust.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
の請求項１記載の生分解性骨材用の接着剤は、天然ゴム
ラテックスを主成分としている。請求項２記載の生分解
性骨材用の接着剤は、請求項１記載の接着剤において、
生分解性の添加剤が含まれていることを特徴とする。According to a first aspect of the present invention, there is provided an adhesive for a biodegradable aggregate comprising a natural rubber latex as a main component. The adhesive for a biodegradable aggregate according to claim 2 is the adhesive according to claim 1,
It is characterized by containing a biodegradable additive.
【０００６】請求項３記載の生分解性成形品は、請求項
１または２記載の生分解性骨材用の接着剤によって生分
解性骨材を接着して成形したことを特徴としている。According to a third aspect of the present invention, there is provided a biodegradable molded article formed by bonding a biodegradable aggregate with the adhesive for a biodegradable aggregate according to the first or second aspect.
【０００７】[0007]
【発明の実施の形態】請求項１記載の生分解性骨材用の
接着剤は、天然ゴムラテックスを主成分とし、請求項２
に記載される生分解性の添加剤を含んでもよい。この生
分解性骨材用の接着剤は、生分解性の骨材の接着に用い
られるもので、例えば請求項３に記載される成形品の成
形に適している。DESCRIPTION OF THE PREFERRED EMBODIMENTS The adhesive for biodegradable aggregate according to claim 1 is mainly composed of natural rubber latex.
May be included. The adhesive for biodegradable aggregates is used for bonding biodegradable aggregates, and is suitable, for example, for molding a molded article according to the third aspect.
【０００８】生分解性の添加剤は、例えば成形品の硬度
の調整等、物性や品質の調整を目的として添加される。
この添加剤は生分解性であれば特に限定なく採用できる
が、カーボン（ブラック、ホワイト）、ゼラチン、デン
プン、デキストリン（分枝デキストリンを含む）、カル
ナバロウ、キャンデリラロウ、ライスワックス、ミツロ
ウ、セラックロウ、ラノリン等のワックス、セルロース
及びその誘導体が例示される。The biodegradable additive is added for the purpose of adjusting physical properties and quality, for example, adjusting the hardness of a molded article.
This additive can be employed without particular limitation as long as it is biodegradable, but carbon (black, white), gelatin, starch, dextrin (including branched dextrin), carnauba wax, candelilla wax, rice wax, beeswax, shellac wax, Examples include waxes such as lanolin, cellulose and derivatives thereof.
【０００９】なお、成形品の硬度の調整は、添加剤によ
る他に、骨材の成分、量、複数の形状の骨材の混合比、
充填率の変更によっても行うことができる。また、請求
項１または２記載の生分解性骨材用の接着剤には、分解
速度の調節を目的として、天然由来の抗菌成分、例えば
茶抽出物、竹抽出物、ヒノキチオール等を添加すること
もできる。[0009] The hardness of the molded article is adjusted not only by the additives but also by the components and amounts of the aggregate, the mixing ratio of the aggregates having different shapes,
It can also be performed by changing the filling rate. The adhesive for biodegradable aggregate according to claim 1 or 2 may be added with an antibacterial component derived from nature, such as a tea extract, a bamboo extract, and hinokitiol, for the purpose of controlling the decomposition rate. Can also.
【００１０】生分解性の骨材としては、木屑やおが粉、
古紙、竹屑、天然繊維、籾殻やコーヒー抽出物残滓等の
穀物滓、貝殻、クルミ殻、自然石等が例示され、これら
を用いた成形品としては、ボード、ブロック、プランタ
ーや植木鉢等の容器が例示される。[0010] Biodegradable aggregates include wood chips, sawdust,
Waste paper, bamboo waste, natural fibers, grain slag such as rice husk and coffee extract residue, shells, walnut shells, natural stones, etc. are exemplified, and molded articles using these are containers such as boards, blocks, planters and flowerpots. Is exemplified.
【００１１】[0011]
【発明の効果】請求項１または２記載の生分解性骨材用
の接着剤及び請求項３記載の成形品は、下記の効果を発
揮する。請求項１または２記載の生分解性骨材用の接着
剤の主成分となる天然ゴムラテックスは、生分解性であ
るから、この接着剤によって生分解性骨材を接着して成
形した成形品は、環境中で生分解されるから、廃棄処理
自体が不要となり、環境への負荷もない。The adhesive for a biodegradable aggregate according to claim 1 or 2 and the molded article according to claim 3 exhibit the following effects. The natural rubber latex as a main component of the adhesive for a biodegradable aggregate according to claim 1 or 2, is a biodegradable product, and is formed by bonding the biodegradable aggregate with the adhesive. Is biodegraded in the environment, so the disposal itself is not required and there is no burden on the environment.
【００１２】天然ゴムラテックスを主成分とする水系で
あって、有機溶剤を含まないから安全であり、環境や人
体に優しい。また、天然ゴムラテックスは常温で硬化す
るので加熱の必要がなく、成形品の製造に際して加熱装
置などを必要としない。It is an aqueous system containing natural rubber latex as a main component, and is safe because it does not contain an organic solvent, and is environmentally friendly and human-friendly. Further, since natural rubber latex cures at room temperature, there is no need for heating, and a heating device or the like is not required for producing a molded product.
【００１３】色素による着色が可能であり、例えば成形
品の用途に応じて適当な色にすることができる。消却し
てもダイオキシン等の有毒ガスや有害な残滓を排出しな
い。本来自然環境に存在する天然成分及びそれに由来す
る物質で、例えば環境ホルモン等の環境に害を与える成
分を有しない。[0013] Coloring with a dye is possible, and for example, an appropriate color can be obtained according to the use of the molded article. Does not emit toxic gas such as dioxin or harmful residue even if it is eliminated. It is a natural component originally existing in the natural environment and a substance derived therefrom, and has no environmentally harmful components such as environmental hormones.
【００１４】[0014]
【実施例１】天然ゴムラテックス２０ｇに、下記の表１
に示される重量割合でセルロース（アビセルＴＧ−１０
１、旭化成工業株式会社製）の２５％分散水溶液を加え
た後、それぞれ木屑６０ｇを十分混合し、円形の容器中
で固化させることによって、図１に示されるような厚さ
２ｃｍの円盤状の成形品を得た。Example 1 The following Table 1 was added to 20 g of natural rubber latex.
Cellulose (Avicel TG-10)
1, manufactured by Asahi Kasei Kogyo Co., Ltd.), 60 g of wood chips are mixed well and solidified in a circular container to form a disc having a thickness of 2 cm as shown in FIG. A molded product was obtained.
【００１５】その成形品に荷重を加えて厚みの変位量を
測定した（測定機器：オートグラフＡＧ−２０００Ａ、
島津製作所製）。荷重は直径６ｃｍのステンレス円盤に
より０〜１００ｋｇを加えた。結果は表１に示すとおり
であり、セルロースの添加により変位量が減少（すなわ
ち硬さが向上）した。A load was applied to the molded product to measure the thickness displacement (measurement equipment: Autograph AG-2000A,
Shimadzu Corporation). A load of 0 to 100 kg was applied by a stainless disk having a diameter of 6 cm. The results are as shown in Table 1. The addition of cellulose reduced the displacement (that is, improved the hardness).
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【実施例２】下記の処方例に示される重量割合で、生分
解性接着剤を作成し、接着剤１５ｋｇに対し木屑０．１
ｍ3 の混合比率で撹拌・混合・成型・乾燥した各種のボ
ードを作成した。Example 2 A biodegradable adhesive was prepared at the weight ratio shown in the following formulation example.
Various boards stirred, mixed, molded and dried at a mixing ratio of m 3 were prepared.
【００１８】 処方例 （単位 部数） 天然ゴムラテックス ２１２０ セオラスクリーム（旭化成工業（株）製） ２１５６ 活性亜鉛華ＡＺＯ（正同化学工業（株）製） ２５．４ Sulfax PS（鶴見化学工業（株）製） ２５．４ サンソフト ７００Ｐ−２（太陽化学（株）製） １．３ アクセルＴＰ（川口化学工業（株）製） ２５．４ 水 ６４６．４ 計 ５０００ 試験資料の作成にあたっては、各試験に定められた厚さ
の型に入れ、乾燥した。ボードの大きさは、試験に必要
な大きさ以上の型に入れ、必要な大きさに切り出した。
市販されている合成系接着剤（市販品Ａ）も同様に用い
てボードを作成し、比較試験を行った。Formulation example (unit: number of parts) Natural rubber latex 2120 Theolus cream (manufactured by Asahi Kasei Kogyo Co., Ltd.) 2156 Activated zinc white AZO (manufactured by Shodo Chemical Co., Ltd.) 25.4 Sulfax PS (Tsurumi Chemical Industry Co., Ltd.) 25.4 Sunsoft 700P-2 (manufactured by Taiyo Chemical Co., Ltd.) 1.3 Axel TP (manufactured by Kawaguchi Chemical Industry Co., Ltd.) 25.4 Water 646.4 total 5000 And placed in a mold of the thickness specified in The board was placed in a mold larger than the size required for the test and cut out to the required size.
A board was prepared using a commercially available synthetic adhesive (commercially available product A) in the same manner, and a comparative test was performed.
【００１９】[0019]
【試験結果】圧縮強さ：ボード（寸法：２００×２００
×３０ｍｍ）中央に径１０ｃｍの鋼鈑を介して、６０ｋ
ｇｆの荷重をかけ、その時の変位量を測定した。なお、
荷重速度は、１ｍｍ／ｍｉｎとした。試験結果を、表２
に記載した。[Test results] Compressive strength: Board (Dimensions: 200 × 200
× 30mm) 60k via a steel plate with a diameter of 10cm at the center
A load of gf was applied, and the displacement at that time was measured. In addition,
The loading speed was 1 mm / min. Table 2 shows the test results.
It described in.
【００２０】[0020]
【表２】 [Table 2]
【００２１】耐衝撃性試験：［落球式：ＪＩＳ Ｋ ５
４００ ８．３．１準拠］ 試験体を落球式衝撃試験器の鋼製台の上に置き。おもり
（５３０ｇ、直径５０．８ｍｍの鋼球）を５０ｃｍの高
さから試験体の上に落とす。衝撃を受けた試験体を室内
に１時間放置し、表面の状態を目視（写真記録）で調べ
るとともに、厚さ減少をノギスで測定した。（１試験体
５回） また、１００ｃｍの高さから落としたときの状態を目視
観察するとともに、デジタルビデオで撮影し、跳ね返り
高さを測定した。さらに厚さ減少をノギスで測定した。
（各種３試験体 室内条件；２０℃、５０％ＲＨ）試験
結果を表３にまとめた。Impact resistance test: [falling ball: JIS K5
400 8.3.1 compliant] The test specimen was placed on a steel base of a falling ball impact tester. A weight (530 g, a steel ball with a diameter of 50.8 mm) is dropped on the test specimen from a height of 50 cm. The impacted test specimen was left in the room for 1 hour, the surface condition was visually inspected (photograph record), and the thickness reduction was measured with a vernier caliper. (1 test specimen 5 times) In addition, the state when dropped from a height of 100 cm was visually observed, photographed by digital video, and the rebound height was measured. Further, the thickness reduction was measured with a caliper.
(3 kinds of test specimens, indoor conditions; 20 ° C., 50% RH) Test results are summarized in Table 3.
【００２２】[0022]
【表３】 [Table 3]
【００２３】耐磨耗性試験：［テーバー式磨耗試験：Ｊ
ＩＳ Ｋ ５４００ ８．９準拠］ 試験体を磨耗試験機に取り付け、静かに磨耗輪を表面に
降ろし、回転台を５００回転させる。この前後の重量変
化を質量０．１ｍｇまで電子天秤ではかり、次式で磨耗
指数を求めた。また、ノギスで厚さ減少を測定した。試
験結果は、表４に記した。Abrasion resistance test: [Taber-type abrasion test: J
IS K 5400 8.9 compliant] The test specimen is attached to a wear tester, the worn wheel is gently lowered on the surface, and the turntable is rotated 500 times. The change in weight before and after this was weighed with an electronic balance to a mass of 0.1 mg, and the wear index was determined by the following equation. The thickness reduction was measured with a caliper. The test results are shown in Table 4.
【００２４】磨耗指数＝（試験前の質量−試験後の質量
ｍｇ）×１，０００回／５００回 磨耗試験機：ＡＢ−１０１（テスター産業（株）製 Ｊ
ＩＳ Ｋ ６９０２２．９．１に規定のもの） 磨耗輪の種類：テーバー社磨耗輪 ＣＳ−１７ 歩行車
輪による強い摩擦を受ける場合用 試験片にかかる荷重：９．８１Ｎ 回転速度：６０±２ｒｐｍ 試験回転数：５００回 磨耗輪リフェース条件：試験体（５００回転）毎 試験体数：各３枚Abrasion index = (mass before test-mg after test) × 1,000 times / 500 times Abrasion tester: AB-101 (manufactured by Tester Sangyo Co., Ltd.)
ISK 69022.9.1) Type of wear wheel: Taber Co., Ltd. Wear wheel CS-17 When subject to strong friction by walking wheel Load applied to test piece: 9.81 N Rotation speed: 60 ± 2 rpm Test rotation Number: 500 times Wear wheel reface condition: Each test specimen (500 rotations) Number of test specimens: 3 each
【００２５】[0025]
【表４】 [Table 4]
【００２６】（１）磨耗指数について、実施例２は、磨
耗輪の研磨粉がバインダーに融着してしまうため、集塵
装置で取り除くことができず、正確な測定ができない。 （２）厚さ減少は、凹凸があるため凸部分の測定平均値 （３）ＪＡＳの磨耗Ａ試験適合基準は、５００回転後に
表面材料が残っており、かつ、１００回転あたりの磨耗
原料が０．１５ｇ以下であること。（磨耗指数に換算す
ると、１，５００以下であれば良い。） この成形品をボードとして使用する場合には、次の
（１）〜（５）の効果がある。 （１）使用中、使用後及び不要となった場合などには、
随時コンポスト化、堆肥処理等、環境に負荷を与えるこ
となく、自然に帰すことができる。 （２）透水性を有するため、降雨時等にも表面に水の膜
ができず、滑らない。しかも、天然の水の循環を妨げな
いから、環境保全にも役立つ。 （３）透水性や生分解性を有するため、植物や微生物が
付きやすい。 （４）適度の弾性・柔らかさを持つので、足や腰への衝
撃が少なく、ジョギングや長時間の歩行に適している。 （５）弾力性に優れているため、転倒時等に衝撃が緩和
され、怪我を防止あるいは怪我の程度を小さくできる。(1) Regarding the abrasion index, in Example 2, since the abrasive powder of the abrasion wheel was fused to the binder, it could not be removed by a dust collector, and accurate measurement was not possible. (2) The decrease in thickness is due to the unevenness, and the average value of the measured values of the convex portions. .15 g or less. (Converted to a wear index, it is sufficient if it is 1,500 or less.) When this molded product is used as a board, the following effects (1) to (5) are obtained. (1) In use, after use and when it becomes unnecessary,
It can be returned to nature without any impact on the environment, such as composting and composting at any time. (2) Since it has water permeability, no water film is formed on the surface even during rainfall or the like, and it does not slip. In addition, it does not hinder the circulation of natural water, which is useful for environmental protection. (3) Since it has water permeability and biodegradability, plants and microorganisms are easily attached. (4) Since it has moderate elasticity and softness, it has little impact on feet and waist, and is suitable for jogging and long-time walking. (5) Since it is excellent in elasticity, the impact is alleviated at the time of falling down, etc., and injury can be prevented or the degree of injury can be reduced.
【００２７】なお、これらの実施例は、本発明の実施の
形態の例であり、本発明はこのような実施例に限定され
るものではなく、本発明の要旨を逸脱しない範囲でさま
ざまに実施できることは言うまでもない。These embodiments are merely examples of the embodiments of the present invention, and the present invention is not limited to these embodiments, and various embodiments may be made without departing from the spirit of the present invention. It goes without saying that you can do it.
【図１】 実施例の成形品の形態の説明図である。FIG. 1 is an explanatory view of a form of a molded article of an embodiment.
Claims (3)
解性骨材用の接着剤。1. An adhesive for a biodegradable aggregate containing natural rubber latex as a main component.
性の添加剤が含まれていることを特徴とする生分解性骨
材用の接着剤。2. The adhesive according to claim 1, further comprising a biodegradable additive.
の接着剤によって生分解性骨材を接着して成形した生分
解性成形品。3. A biodegradable molded article formed by bonding a biodegradable aggregate with the adhesive for a biodegradable aggregate according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11144809A JP2000044907A (en) | 1998-05-25 | 1999-05-25 | Adhesive for biodegradable aggregate and biodegradable molded article |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14334098 | 1998-05-25 | ||
| JP10-143340 | 1998-05-25 | ||
| JP11144809A JP2000044907A (en) | 1998-05-25 | 1999-05-25 | Adhesive for biodegradable aggregate and biodegradable molded article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000044907A true JP2000044907A (en) | 2000-02-15 |
Family
ID=26475104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11144809A Pending JP2000044907A (en) | 1998-05-25 | 1999-05-25 | Adhesive for biodegradable aggregate and biodegradable molded article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000044907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003096745A (en) * | 2001-09-21 | 2003-04-03 | Unitica Fibers Ltd | Fill material for civil engineering work and member for civil engineering work using it |
| WO2004039144A2 (en) * | 2002-10-28 | 2004-05-13 | America's Gardening Resource, Inc. | Preformed container for growing flowering plant bulbs |
-
1999
- 1999-05-25 JP JP11144809A patent/JP2000044907A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003096745A (en) * | 2001-09-21 | 2003-04-03 | Unitica Fibers Ltd | Fill material for civil engineering work and member for civil engineering work using it |
| JP4596713B2 (en) * | 2001-09-21 | 2010-12-15 | ユニチカ株式会社 | Filling materials for civil engineering work and civil engineering materials using the same |
| WO2004039144A2 (en) * | 2002-10-28 | 2004-05-13 | America's Gardening Resource, Inc. | Preformed container for growing flowering plant bulbs |
| WO2004039144A3 (en) * | 2002-10-28 | 2005-05-19 | Americas Gardening Resource | Preformed container for growing flowering plant bulbs |
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