JPH0252932B2 - - Google Patents
Info
- Publication number
- JPH0252932B2 JPH0252932B2 JP18855084A JP18855084A JPH0252932B2 JP H0252932 B2 JPH0252932 B2 JP H0252932B2 JP 18855084 A JP18855084 A JP 18855084A JP 18855084 A JP18855084 A JP 18855084A JP H0252932 B2 JPH0252932 B2 JP H0252932B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- fibers
- parts
- weight
- rubber compound
- 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
Links
- 229920001971 elastomer Polymers 0.000 claims description 48
- 239000005060 rubber Substances 0.000 claims description 48
- 150000001875 compounds Chemical class 0.000 claims description 25
- 239000000835 fiber Substances 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 239000003292 glue Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000004953 Aliphatic polyamide Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 2
- 229920003231 aliphatic polyamide Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Description
（産業上の利用分野）
本発明は繊維とゴム配合物との接着方法に係
り、更に詳しくは高温、高湿下及び散水下におけ
る接着力を維持できる繊維とゴム配合物との接着
方法に関する。
（従来の技術）
一般に、ゴムホース、伝動ベルト、コンベヤベ
ルト、タイヤ等の工業用ゴム製品の補強材として
ナイロン、レーヨン、ビニロンならびにポリエス
テル等の合成繊維が使用されている。従来よりこ
れらの合成繊維とゴム配合物との接着にはレゾル
シン−ホルマリン−ゴムラテツクス接着液（以下
RFL液と呼ぶ）、あるいはゴム糊中にイソシアネ
ート基又はエポキシ基を有する化合物を添加した
接着液を繊維に含浸させるか、又はあらかじめレ
ゾルシン、ヘキサメチレンジアミン、シリカを混
入したゴム配合物（HRH法）のゴム糊を繊維に
含浸させる方法等が知られているが、上記方法は
すべて高温高湿下及び散水下において接着剤が加
水分解をおこし、繊維とゴム配合物との接着力を
著しく低下せしめる欠点を有している。
（発明が解決しようとする問題点）
本発明はこのような点を改善するもので、繊維
とゴム配合物の接着力を高めるとともにこの接着
力を高温、高湿下でも充分維持できる接着方法を
提供することにある。
（問題点を解決するための手段）
即ち、本発明の特徴とするところは繊維を、ゴ
ム100重量部に対しポリカルボジイミドを２〜27
添加したゴム系接着剤に浸漬し熱処理した後、未
加硫ゴム配合物と密着加硫せしめることならび
に、繊維をゴム系接着剤に浸漬して熱処理した
後、ゴム100重量部に対し、ポリカルボジイミド
を２〜27重量部配合混入した未加硫ゴム配合物と
密着加硫せしめるものである。
本発明の特徴となすポリカルボジイミドはウレ
タン、エチレン−酢酸ビニールの加水分解の防止
及び耐熱性の付与等は公知の事実であるが、ゴム
配合物又はゴム糊に添加することにより繊維との
接着が良好になり、しかも耐水性が保持されるこ
とは本発明者等の鋭意研究の結果、今回新たにわ
かつた事である。
本発明において使用するゴム配合物とは、クロ
ロプレンゴム、天然ゴム、クロロスルホン化ポリ
エチレンゴム、エピクロルヒドリンゴム、ニトリ
ルゴム、フツ素ゴム、スチレン−ブタジエンゴ
ム、エチレンプロピレンゴム等の単独或いはこれ
らのブレンド物を言う。
又、前記本発明に使用する繊維とは、綿、ポリ
エステル、脂肪族ポリアミド、芳香族ポリアミ
ド、ビニロン、レーヨン、ガラス等の繊維を言
い、その形態はコード状でも織物状でも良い。
次に本発明の実施例を説明する。
（実施例）
実施例 １
繊維として脂肪族ポリアミド繊維（ナイロン）
からなる平織物（420D／１×420D／１／70×
70）を表１の組成からなるゴム糊に浸漬後、120
℃で５分間熱処理し、一方ECG150 ３／13のガ
ラス繊維のコードを同じく表１のゴム糊に浸漬
し、120℃で５分間熱処理した。次にこの処理帆
布を円筒ドラム上に巻き付け、その上に該処理コ
ードをスピニングし、更に厚み0.5mmの表２のゴ
ム配合物シート、該処理帆布を順々に積層して５
Kg／cm230分間蒸気加硫を行い、冷却後、該円筒状
のドラムを抜き去り、ゴム製の円筒状物を作成し
た。次に該円筒状物をインチ幅でカツトし、該カ
ツト物（平ベルト）を沸水中に３時間浸漬し、浸
漬前後の平ベルトの強力保持率及びガラスコード
とゴム配合物との接着力を調べた。その結果を表
１に併記する。
(Industrial Application Field) The present invention relates to a method for bonding fibers and a rubber compound, and more particularly, to a method for bonding fibers and a rubber compound that can maintain adhesive strength under high temperature, high humidity, and water spray conditions. (Prior Art) Synthetic fibers such as nylon, rayon, vinylon, and polyester are generally used as reinforcing materials for industrial rubber products such as rubber hoses, power transmission belts, conveyor belts, and tires. Conventionally, a resorcinol-formalin-rubber latex adhesive liquid (hereinafter referred to as "resorcinol-formalin-rubber latex adhesive") has been used to bond these synthetic fibers and rubber compounds.
The fibers are impregnated with an adhesive liquid (referred to as RFL liquid), or a compound containing an isocyanate group or an epoxy group is added to the rubber glue, or a rubber compound in which resorcinol, hexamethylene diamine, and silica are mixed in advance (HRH method). Methods such as impregnating fibers with rubber glue are known, but in all of the above methods, the adhesive undergoes hydrolysis under high temperature and high humidity conditions and under water spraying, significantly reducing the adhesive strength between the fibers and the rubber compound. It has its drawbacks. (Problems to be Solved by the Invention) The present invention aims to improve these points, and provides an adhesive method that can increase the adhesive strength between fibers and rubber compounds and maintain this adhesive strength sufficiently even under high temperature and high humidity conditions. It is about providing. (Means for Solving the Problems) That is, the present invention is characterized in that the fibers are composed of 2 to 27 parts by weight of polycarbodiimide per 100 parts by weight of rubber.
After immersing the fibers in the added rubber adhesive and heat-treating them, vulcanizing them in close contact with the unvulcanized rubber compound, and after immersing the fibers in the rubber-based adhesive and heat-treating them, polycarbodiimide was added to 100 parts by weight of rubber. It is vulcanized in close contact with an unvulcanized rubber compound containing 2 to 27 parts by weight of. It is a well-known fact that polycarbodiimide, which is a feature of the present invention, prevents hydrolysis of urethane and ethylene-vinyl acetate and imparts heat resistance, but it can be added to rubber compounds or rubber glue to improve adhesion to fibers. As a result of intensive research by the present inventors, it has been newly discovered that the water resistance is improved and water resistance is maintained. The rubber compound used in the present invention includes chloroprene rubber, natural rubber, chlorosulfonated polyethylene rubber, epichlorohydrin rubber, nitrile rubber, fluorocarbon rubber, styrene-butadiene rubber, ethylene propylene rubber, etc., or a blend thereof. To tell. Furthermore, the fibers used in the present invention refer to fibers such as cotton, polyester, aliphatic polyamide, aromatic polyamide, vinylon, rayon, glass, etc., and the fibers may be in the form of cords or textiles. Next, examples of the present invention will be described. (Example) Example 1 Aliphatic polyamide fiber (nylon) as fiber
Plain woven fabric (420D/1×420D/1/70×
70) in rubber glue having the composition shown in Table 1, 120
C. for 5 minutes, while ECG150 3/13 glass fiber cord was similarly immersed in the rubber glue shown in Table 1 and heat treated at 120.degree. C. for 5 minutes. Next, this treated canvas was wrapped around a cylindrical drum, the treated cord was spun onto it, and the rubber compound sheet of Table 2 having a thickness of 0.5 mm and the treated canvas were laminated one after another.
Kg/cm 2 Steam vulcanization was performed for 30 minutes, and after cooling, the cylindrical drum was removed to produce a rubber cylindrical product. Next, the cylindrical object was cut into inches wide, and the cut object (flat belt) was immersed in boiling water for 3 hours to determine the strength retention rate of the flat belt before and after immersion and the adhesive strength between the glass cord and the rubber compound. Examined. The results are also listed in Table 1.
【表】【table】
【表】【table】
【表】【table】
【表】
実施例 ２
実施例１と同じ組織のナイロン平織物及びガラ
ス繊維コードをポリカルボジイミドを添加しない
ゴム糊（表１の比較例No.１）に浸漬後処理し、ポ
リカルボジイミドを配合した表４のゴム配合物を
ゴムシートとして使用し、実施例１と同様に成
形、加硫し評価した。その結果を表４に併記す
る。
なお表４中の比較例No.４，No.５はポリカルボジ
イミドを配合しない従来のゴム配合物のゴムシー
トを使用した場合である。[Table] Example 2 A table in which nylon plain woven fabric and glass fiber cord with the same texture as in Example 1 were immersed in rubber glue without adding polycarbodiimide (Comparative Example No. 1 in Table 1), and then treated with polycarbodiimide. The rubber compound No. 4 was used as a rubber sheet, molded and vulcanized in the same manner as in Example 1, and evaluated. The results are also listed in Table 4. Comparative Examples No. 4 and No. 5 in Table 4 are cases where rubber sheets made of conventional rubber compounds containing no polycarbodiimide were used.
【表】
（発明の効果）
以上のように本発明の繊維とゴム配合物との接
着方法は、上記実施例から明らかな如く、繊維を
ゴム100重量部に対してポリカルボジイミドを２
〜27重量部添加したゴム系接着剤の溶液で浸漬処
理して未加硫ゴムと密着加硫するか、又はゴム系
接着剤の溶液で浸漬処理した後、ゴム100重量部
に対しポリカルボジイミドを２〜27重量部配合混
入した未加硫ゴムと密着加硫することにより、繊
維とゴム配合物の接着力をたかめることは勿論、
従来の欠点であつた高温、高湿下及び散水下の条
件のもとでも接着力を充分維持することが可能と
なり合わせてベルト強力の保持率も大幅に向上で
きる等優れた効果を有するものである。[Table] (Effects of the Invention) As is clear from the above examples, the method for bonding fibers and rubber compounds of the present invention is as follows:
Either immerse in a solution of a rubber adhesive containing ~27 parts by weight and vulcanize it in close contact with unvulcanized rubber, or immerse in a solution of a rubber adhesive and then add polycarbodiimide to 100 parts by weight of rubber. By vulcanizing in close contact with unvulcanized rubber mixed with 2 to 27 parts by weight, it is possible to increase the adhesive strength between the fiber and the rubber compound.
It has excellent effects such as being able to maintain sufficient adhesive strength even under conditions of high temperature, high humidity, and water spraying, which were disadvantages of the conventional method, and also greatly improving the retention rate of belt strength. be.
Claims (1)
をゴム100重量部に対してポリカルボジイミドを
２〜27重量部添加したゴム系接着剤に浸漬し熱処
理した後、これを未加硫ゴム配合物と密着加硫せ
しめることを特徴とする繊維とゴム配合物との接
着方法。 ２ 繊維とゴム配合物との接着において、該繊維
をゴム系接着剤に浸漬して熱処理した後、ゴム
100重量部に対してポリカルボジイミドを２〜27
重量部配合混入した未加硫ゴム配合物と密着加硫
せしめることを特徴とする繊維とゴム配合物との
接着方法。[Claims] 1. In bonding fibers and rubber compounds, the fibers are immersed in a rubber adhesive containing 2 to 27 parts by weight of polycarbodiimide per 100 parts by weight of rubber, heat treated, and then A method for bonding fibers and a rubber compound, characterized by vulcanizing them in close contact with an unvulcanized rubber compound. 2. In bonding fibers and rubber compounds, the fibers are immersed in a rubber adhesive and heat treated, then the rubber compound is bonded to the rubber compound.
2 to 27 parts of polycarbodiimide per 100 parts by weight
A method for bonding fibers and a rubber compound, characterized by vulcanizing them in close contact with an unvulcanized rubber compound mixed in parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18855084A JPS6166724A (en) | 1984-09-07 | 1984-09-07 | Method of bonding fiber to rubber compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18855084A JPS6166724A (en) | 1984-09-07 | 1984-09-07 | Method of bonding fiber to rubber compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6166724A JPS6166724A (en) | 1986-04-05 |
| JPH0252932B2 true JPH0252932B2 (en) | 1990-11-15 |
Family
ID=16225657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18855084A Granted JPS6166724A (en) | 1984-09-07 | 1984-09-07 | Method of bonding fiber to rubber compound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6166724A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2905899B2 (en) * | 1990-04-10 | 1999-06-14 | 日清紡績株式会社 | Sheet material and manufacturing method thereof |
| KR100352014B1 (en) * | 1994-01-25 | 2003-01-24 | 닛신보세키 가부시키 가이샤 | Sheet material and manufacturing method |
| WO1996031569A1 (en) * | 1995-04-05 | 1996-10-10 | Nisshinbo Industries, Inc. | Gasket for compressor of refrigerator or the like |
| CA2231300A1 (en) * | 1998-03-06 | 1999-09-06 | Bayer Inc. | Improved nitrile polymer vulcanizate and process for the production thereof |
-
1984
- 1984-09-07 JP JP18855084A patent/JPS6166724A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6166724A (en) | 1986-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |