JPH0620771B2 - Method for forming composite of vulcanized rubber powder molding - Google Patents
Method for forming composite of vulcanized rubber powder moldingInfo
- Publication number
- JPH0620771B2 JPH0620771B2 JP2047747A JP4774790A JPH0620771B2 JP H0620771 B2 JPH0620771 B2 JP H0620771B2 JP 2047747 A JP2047747 A JP 2047747A JP 4774790 A JP4774790 A JP 4774790A JP H0620771 B2 JPH0620771 B2 JP H0620771B2
- Authority
- JP
- Japan
- Prior art keywords
- vulcanized rubber
- rubber powder
- composite
- binder
- powder molding
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/702—Imitation articles, e.g. statues, mannequins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、加硫ゴム粉末成形物の複合体形成方法に関す
る。Description: TECHNICAL FIELD The present invention relates to a method for forming a composite of a vulcanized rubber powder molded product.
従来の技術 従来、人工芝等の積層品と一般加硫ゴム又は樹脂とを同
一工程で組み合せて形成した複合体が知られている。2. Description of the Related Art Conventionally, there is known a composite body formed by combining a laminated product such as artificial grass and a general vulcanized rubber or resin in the same step.
また、加硫ゴム粉末成形物としては、特開平１−１９７
５１７号公報に記載されるような、再生ゴムチップ材
に、バインダーとしての水酸基末端ポリブタジエンと硬
化剤としてのポリイソシアネートを混合し、これら混合
物にイオウを添加し、加熱して固化してなるものが知ら
れている。Further, as a vulcanized rubber powder molded product, JP-A-1-197 is available.
As described in Japanese Patent No. 517, there is known a product obtained by mixing a hydroxyl group-terminated polybutadiene as a binder and polyisocyanate as a curing agent with a recycled rubber chip material, adding sulfur to these mixtures, and heating to solidify. Has been.
発明が解決しようとする課題 しかしながら、一般加硫ゴム又は樹脂と人工芝等の積層
品とを同時成形した場合、以下に述べるような問題点を
有する。Problems to be Solved by the Invention However, when a general vulcanized rubber or resin and a laminated product such as artificial turf are simultaneously molded, there are problems as described below.
一般加硫ゴム，樹脂では、型温（加硫ゴムの場合），
型締め圧が必要であり、特に、人工芝と組み合せた場
合、人工芝の毛だおれなどの外観上の不具合が生じる問
題点があった。For general vulcanized rubber and resin, mold temperature (for vulcanized rubber),
Clamping pressure is required, and in particular, when combined with artificial turf, there is a problem that appearance problems such as hair dripping of the artificial turf occur.
一般加硫ゴムでは、加硫温度と加硫時間が必要である
ため、積層品が熱により変形，変色を起して外観を損な
うと共に、加硫時間が長くなる（特に肉厚の厚いもの）
ため、コスト高となる問題点があった。Since general vulcanized rubber requires vulcanization temperature and vulcanization time, the laminated product may be deformed or discolored by heat to impair the appearance and the vulcanization time will be long (especially thick wall)
Therefore, there is a problem that the cost becomes high.
一般加硫ゴムと積層品との接着面は、加硫不足となり
易く、接着不良となる問題点があった。The bonding surface between the general vulcanized rubber and the laminated product is vulcanized easily, resulting in poor adhesion.
一般加硫ゴム又は樹脂の肉厚が厚い場合は、複合体の
歩行感は良いが、重量が重くなる問題点があった。When the thickness of the general vulcanized rubber or resin is large, the walking feeling of the composite is good, but the weight becomes heavy.
一般加硫ゴム又は樹脂でなる被積層物は、通常透水性
を有しないため、人工芝等の積層物と組み合せた場合、
複合体の水捌けが悪くなる問題点があり、特に透水性を
付加した場合、加硫ゴムでは肉薄のものしかできず、大
きいシートものしかなかった。Laminates made of general vulcanized rubber or resin usually do not have water permeability, so when combined with a laminate such as artificial grass,
There is a problem that the water resistance of the composite becomes poor, and especially when water permeability is added, the vulcanized rubber can only be thin and large sheets.
また、加硫粉末ゴム成形物単体では、以下に述べるよう
な問題点を有する。Further, the vulcanized powder rubber molded product alone has the following problems.
外観性に限界がある。また、色ゴムを使用した場合、
コスト高となる問題点を有する。There is a limit to the appearance. Also, when using colored rubber,
There is a problem that the cost becomes high.
色ゴムと黒ゴム（再成品）とを積層させて形成した場
合は、工数がかかりコスト高となる問題点を有する。When the colored rubber and the black rubber (reproduced product) are laminated, the number of steps is increased and the cost is increased.
バインダーに顔料を加えて着色した場合、耐候性が悪
く表面が劣化することにより外観性が低下する問題点が
ある。When a pigment is added to the binder for coloring, there is a problem that the weatherability is poor and the surface is deteriorated, so that the appearance is deteriorated.
本発明は、このような従来の問題点に着目して創案され
たものであって、肉厚の厚い複合体の成形品を短い加工
時間で形成すると共に、透水性，耐候性の良い、加硫ゴ
ム粉末成形物の複合体形成方法を得んとするものであ
る。The present invention was devised in view of such conventional problems, and formed a molded product of a composite having a large wall thickness in a short processing time and had good water permeability and weather resistance. It is intended to obtain a method for forming a composite of a rubber vulcanized rubber molded product.
課題を解決するための手段 本発明は、成型金型の内底に積層物を配置した後、該積
層物の上へ加硫ゴム粉末に少なくともバインダーを配合
した混合物を配置してプレス成形を施すことを、その解
決手段としている。Means for Solving the Problems According to the present invention, after a laminate is placed on the inner bottom of a molding die, a mixture of vulcanized rubber powder and at least a binder is placed on the laminate and press molding is performed. That is the solution.
実施例 以下、本発明に係る加硫ゴム粉末成形物の複合体形成方
法の詳細を実施例に基づいて説明する。Examples Hereinafter, details of a method for forming a composite of a vulcanized rubber powder molded article according to the present invention will be described based on Examples.
先ず、本実施例は、第１図に示すように、金型１の内底
に人工芝２を裏返した状態（基布が上の状態）で配置す
る。なお、人工芝２の裏面には、接着するための接着処
理（バッキング等）を施す。なお、人工芝２は、基布部
がポリエステル，起毛部がナイロンで構成されている。First, in this embodiment, as shown in FIG. 1, the artificial turf 2 is placed on the inner bottom of the mold 1 with the artificial turf 2 turned upside down (the base cloth is on top). The back surface of the artificial grass 2 is subjected to a bonding process (backing or the like) for bonding. The artificial grass 2 has a base cloth made of polyester and a raised part made of nylon.
次に、人工芝２の上に加硫ゴム粉末３を配置し、押型１
ａでプレス成形する。なお、加硫ゴム粉末３には、少な
くともバインダーを配合する。Next, the vulcanized rubber powder 3 is placed on the artificial turf 2 and the die 1 is pressed.
Press molding with a. The vulcanized rubber powder 3 contains at least a binder.
また、加硫ゴム粉末３としては、再生ゴムチップ材を用
いた。バインダーとしては、水酸基末端ポリブタジエン
を用いた。Further, as the vulcanized rubber powder 3, a recycled rubber chip material was used. Hydroxyl terminated polybutadiene was used as the binder.
以下、加硫ゴム粉末に配合するバインダー混合物の混合
比の一例を以下に示す。Hereinafter, an example of the mixing ratio of the binder mixture to be added to the vulcanized rubber powder will be shown.
水酸基末端ポリブタジエン（商品名「ＰｏｌｙｂｄＲ−
４５Ｈ出光アーコ（株）」）
…８０重量部 ポリエーテルポリオール（商品名「スミフェン３９００
住友バイエル（株）」） …２０重量部 架橋剤（エチレングリコール） …５重量部 触媒（ジブチルチンジラウレート） …０．０１重量部 イオウ …３重量部 以上の混合物を前もってよく攪拌しておき、使用の都度
一定量計量し、ポリイソシアネート（商品名「ＭＤＩ−
ＬＫ」三井東圧化学（株））４２．５重量部と短時間で
高速攪拌し、再生ゴムチップ（粉末）材と混合する。こ
の再生ゴムチップ材との混合は、バインダーの反応によ
り増粘する前に速やかに行なうのが望ましい。尚、水酸
基末端ポリブタジエンにポリエーテルポリオールを調合
したのは粘度低下及び配合コスト低減のためである。Hydroxyl terminated polybutadiene (trade name "PolybdR-
45H Idemitsu Arco Inc. ")
80 parts by weight polyether polyol (trade name “Sumiphen 3900
Sumitomo Bayer Co., Ltd.)) 20 parts by weight Crosslinking agent (ethylene glycol) 5 parts by weight Catalyst (dibutyltin dilaurate) 0.01 parts by weight Sulfur 3 parts by weight The above mixture is thoroughly stirred and used in advance. A fixed amount of polyisocyanate (trade name "MDI-
LK ”Mitsui Toatsu Kagaku Co., Ltd. 42.5 parts by weight with high speed stirring in a short time and mixed with recycled rubber chip (powder) material. It is desirable that the mixing with the recycled rubber chip material is carried out promptly before the viscosity is increased by the reaction of the binder. The reason why the polyether polyol was blended with the hydroxyl group-terminated polybutadiene was to reduce the viscosity and blending cost.
また、再生ゴムチップ材（加硫ゴム粉末）と上記バイン
ダー混合物の配合は、 再生ゴムチップ材 …１００重量部 バインダー混合物 …５〜４０重量部 である。バインダー混合物は５重量部以上ないとバイン
ダーとしての効果は小さいが、特に４０重量部に規定す
る必要はなく、これ以上でも成形は可能である。The blending ratio of the recycled rubber chip material (vulcanized rubber powder) and the binder mixture is 100 parts by weight of the recycled rubber chip material and 5 to 40 parts by weight of the binder mixture. If the binder mixture is 5 parts by weight or more, the effect as a binder is small.
そして、第１図に示したようなプレス成形に際し、比較
的低温（例えば１５０℃），短時間（５分）で加硫ゴム
粉末３は固化し、第２図に示すように加硫ゴム粉末成形
物３Ａとなる。なお、同図中４は成形された複合体（製
品）を示している。Then, during press molding as shown in FIG. 1, the vulcanized rubber powder 3 is solidified at a relatively low temperature (for example, 150 ° C.) in a short time (5 minutes), and as shown in FIG. It becomes the molded product 3A. In addition, 4 in the figure shows the molded composite body (product).
このようにして形成された複合体４は、人工芝２と加硫
ゴム粉末成形物３Ａとが良好に接着されている。In the composite body 4 thus formed, the artificial turf 2 and the vulcanized rubber powder molded product 3A are well bonded.
以上、実施例について説明したが、本発明に係る加硫ゴ
ム粉末成形物の複合体成形方法は、これに限定されるも
のではなく、各種の設計変更が可能である。Although the examples have been described above, the method for molding the composite of the vulcanized rubber powder molded product according to the present invention is not limited to this, and various design changes are possible.
例えば、上記実施例においては、積層物として人工芝２
を用いたが、これをウレタンシートに置換えてもよく、
この場合、金型１の内底部に空気の逃げ溝として深さ
０．１〜０．５ｍｍの溝を形成すると都合良い。For example, in the above embodiment, the artificial turf 2 is used as a laminate.
However, this may be replaced with a urethane sheet,
In this case, it is convenient to form a groove having a depth of 0.1 to 0.5 mm in the inner bottom portion of the mold 1 as an air escape groove.
また、上記実施例においては、バインダーに顔料を加え
ていないが、これを加えてもよく、その場合積層物とし
ての人工芝，シート等には耐候性を付与する。Further, in the above examples, the binder is not added with a pigment, but it may be added, in which case weather resistance is imparted to the artificial turf, sheet or the like as a laminate.
さらに、加硫ゴム粉末３の密度を適当に設定することに
より、加硫ゴム粉末成形物３Ａに空隙を形成することも
でき、複合体４に透水性を付与することも可能である。
また、上記密度設定により、歩行感の良い軽量な複合体
４を形成することができる。Furthermore, by appropriately setting the density of the vulcanized rubber powder 3, it is possible to form voids in the vulcanized rubber powder molded product 3A, and it is also possible to impart water permeability to the composite 4.
In addition, with the above density setting, it is possible to form the lightweight composite body 4 having a good walking feeling.
発明の効果 以上の説明から明らかなように、本発明に係る加硫ゴム
粉末成形物の複合体形成方法に依れば、肉厚が厚く且つ
透水性が良好でしかも走行性の良好な複合体の製造を実
現させる効果がある。EFFECTS OF THE INVENTION As is clear from the above description, according to the method for forming a composite of a vulcanized rubber powder molded product according to the present invention, a composite having a large wall thickness, good water permeability, and good running property. Has the effect of realizing the manufacturing of.
また、複合体の肉厚が厚い場合でも加工時間を大巾に短
縮する効果がある。Further, even when the thickness of the composite is large, it has the effect of significantly shortening the processing time.
さらに、複合体の耐候性を高める効果を有する。Furthermore, it has the effect of increasing the weather resistance of the composite.
さらにまた、複合体をインターロッキング式とすれば施
工性が良く、部分交換を可能にする効果がある。Furthermore, if the composite is of the interlocking type, the workability is good and there is the effect that partial replacement is possible.
第１図は本発明に係る加硫ゴム成形物の複合体形成方法
の実施例を示す断面説明図、第２図は複合体を示す斜視
図である。 １……金型、２……人工芝（積層物）、３……加硫ゴム
粉末、４……複合体。FIG. 1 is a sectional explanatory view showing an embodiment of a method for forming a composite of a vulcanized rubber molded product according to the present invention, and FIG. 2 is a perspective view showing the composite. 1 ... Mold, 2 ... Artificial grass (laminate), 3 ... Vulcanized rubber powder, 4 ... Composite.
Claims (1)
積層物の上へ加硫ゴム粉末に少なくともバインダーを配
合した混合物を配置してプレス成形を施すことを特徴と
する加硫ゴム粉末成形物の複合体形成方法。Claims: 1. A laminate comprising a laminate and the mixture, wherein a mixture of vulcanized rubber powder and at least a binder is arranged on the laminate and press-molded. A method for forming a composite of a rubber vulcanizate molded product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2047747A JPH0620771B2 (en) | 1990-02-28 | 1990-02-28 | Method for forming composite of vulcanized rubber powder molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2047747A JPH0620771B2 (en) | 1990-02-28 | 1990-02-28 | Method for forming composite of vulcanized rubber powder molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03248811A JPH03248811A (en) | 1991-11-06 |
| JPH0620771B2 true JPH0620771B2 (en) | 1994-03-23 |
Family
ID=12783945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2047747A Expired - Lifetime JPH0620771B2 (en) | 1990-02-28 | 1990-02-28 | Method for forming composite of vulcanized rubber powder molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620771B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315014C2 (en) * | 1993-05-06 | 1995-05-11 | Erich Prof Dr Ing Schuermann | Method and device for producing molded parts from plastic waste |
| DE102022132684A1 (en) * | 2022-12-08 | 2024-06-13 | Bayerische Motoren Werke Aktiengesellschaft | Portable device for producing a specimen and method for evaluating a specimen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4987228U (en) * | 1972-11-16 | 1974-07-29 | ||
| JPS62200701U (en) * | 1986-06-07 | 1987-12-21 |
-
1990
- 1990-02-28 JP JP2047747A patent/JPH0620771B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03248811A (en) | 1991-11-06 |
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