JPH051293B2 - - Google Patents
Info
- Publication number
- JPH051293B2 JPH051293B2 JP26041784A JP26041784A JPH051293B2 JP H051293 B2 JPH051293 B2 JP H051293B2 JP 26041784 A JP26041784 A JP 26041784A JP 26041784 A JP26041784 A JP 26041784A JP H051293 B2 JPH051293 B2 JP H051293B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- epoxy adhesive
- epoxy
- adhering
- polypropylene
- 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
- 239000004743 Polypropylene Substances 0.000 claims description 40
- 229920001155 polypropylene Polymers 0.000 claims description 40
- 229920006332 epoxy adhesive Polymers 0.000 claims description 25
- 239000000853 adhesive Substances 0.000 claims description 23
- 230000001070 adhesive effect Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 21
- -1 polypropylene Polymers 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000004830 Super Glue Substances 0.000 claims description 10
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical compound CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000010062 adhesion mechanism Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
〔産業上の利用分野〕
本発明はポリプロピレン（PP）樹脂の接着方
法、特に構造部材としてのPPの接着方法に関す
る。
〔従来技術〕
従来PPフイルム、PPシート等の薄物PP接着
にはイソブチレン系もしくはゴム系接着剤を用い
るか、あるいは接着剤を用いずに直接に加熱・溶
着する方法によつていたが構造材としてのPPを
接着する場合、上記の接着剤では所望の接着強度
が得られず、一方、溶着法は接着面積の広い場合
に不適当である。
そこで一般に接着剤としてはエポキシ樹脂が用
いられ、また特殊な変性処理を施したシアノアク
リレート樹脂があるともいわれ、これらを含めて
のPP同志の接着部分の引張強度は20ないし50
Kg／cm2であるといわれ構造接着用としては不十分
である。
〔発明が解決しようとする問題点〕
本発明は上記の事情に基づいてなされたもので
PP同志またはPPと他の材料とを従来よりも高強
度に、かつ高温下でも安定した状態で接着し得る
接着方法を提供しようとするものである。
〔問題を解決するための手段〕
本第一発明のポリプロピレン樹脂の接着方法
は、エポキシ接着剤を用いてポリプロピレン同志
を接着させた後に剥離し、上記ポリプロピレンの
一方に付着したエポキシ接着剤の表面に微量のシ
アノアクリレート接着剤を施与してから再接着
し、再び剥離して、該剥離面にシアノアクリレー
ト接着剤を施与してから更に接着することを特徴
とする。
また、本第二発明のポリプロピレン樹脂の接着
方法は、エポキシ接着剤を用いてポリプロピレン
と異種材料とを接着させた後に剥離し、異種材料
に付着したエポキシ接着剤の表面に微量のシアノ
アクリレート接着剤を施与してから再接着するこ
とを特徴とする。
上記異種材料は、基本的にエポキシ接着剤（エ
ポキシ樹脂系接着剤）を用いて接着できるものを
意味し、具体的には例えば下記のものが挙げられ
る。
ポリプロピレン以外のプラスチツク例えば
ABS，ASG、ポリカーボネート等。
金属例えば鉄、銅、亜鉛、錫等。
その他例えば木材、皮革、紙、ガラス、セラ
ミツク等。
〔作用〕
シアノアクリレート接着剤は瞬間接着剤とも呼
ばれ、広い範囲の材料を数秒間で接着できること
で知られているが、ポリエチレン、ポリプロピレ
ン、ポリスチレン等のポリオレフイン系樹脂に対
しては接着能力がない。
本発明方法はエポキシ接着剤を用いて、一旦
PP材同志またはPP材と他の異種材料を接着・固
化せしめてから剥離し、一方の材料に付着した接
着剤の表面に微量のシアノアクリレート接着剤を
添加することにより、当初よりは高い接着力を発
現せしめたことに特色を有している。単に未硬化
のエポキシ接着剤にシアノアクリレート接着剤を
添加したのでは、瞬時に固化してしまい接着剤と
して使用することは不可能である。
本発明方法の接着機構は不明であるが、シアノ
アクリレート接着剤の添加によつて、一旦固化し
たエポキシ接着剤中の分子末端基が変性しPP分
子との間に当初とは異なる分子間力が発生したも
のと想像される。
なお、最初の接着から剥離後の再接着迄の期間
には限定がなく、必ずしも再接着を急ぐ必要はな
い。また別法として一方の材料にエポキシ接着剤
を塗布したまま接着を行わずに固化せしめてか
ら、表面に瞬間接着剤を滴下し、しかる後に始め
て、他方の材料を接着せしめることも可能である
がこのような場合、固化した接着剤の面と他方の
材料の被接着面に微少の間隙があると接着が困難
になる。このような意味で当初のエポキシ接着剤
のみによる接着が必要になる。
〔実施例〕
以下、本発明の実施例を図面に基づいて説明す
る。
第１図はPP／PP同志の接着工程を図示したも
のであり、
長サ70mm、幅15mm、厚さ1.5mmのPP平板１，
２の接着面をシンナーで十分に洗浄した後約２
ｇのハイソール社製エポキシ接着剤商品名“ハ
イソール608″３をPP平板１側の末端に約25mm
の長さに塗布する。
PP平板２の末端部（長サ25mm）をエポキシ
接着剤３をはさんでPP平板１に圧着し室温で
約20分放置する。
接着したPP平板１，２に矢印方向の力を加
えて剥離する。このとき何等かの理由によりエ
ポキシ接着剤３がPP平板１側に付着したもの
とみられ、PP平板２側に付着することもあり
得る。
エポキシ接着剤３の上に瞬間接着剤（東亜合
成化学（株）製商品名“アロンアルフア″）４
を約50mg滴下し、直ちにPP平板２を圧着する
と約２分で接着する。
再び矢印方向に力を加えるとエポキシ接着剤
３をPP平板２側に残して剥離する。これは瞬
間接着剤４の添加により変成層５が生成し、
PP平板２／エポキシ接着剤３間の分子間力が
PP平板１／エポキシ接着剤３間の分子間力よ
りも大きくなつた為である。
そこでエポキシ接着剤３の新しい剥離面に瞬
間接着剤４を滴下し、直ちにPP平板１を圧着
して約５分放置すると第２図に示す如くエポキ
シ接着剤３の両面に変成層５が形成され、手で
力を加えても剥離しなくなる。
上記の重ね継ぎ板につき室温20℃、湿度40％で
曲げ試験を行ない、エポキシ樹脂のみによるも
の、及び加熱溶着によるものと比較した処、次の
結果を得た。
[Industrial Field of Application] The present invention relates to a method for adhering polypropylene (PP) resin, particularly to a method for adhering PP as a structural member. [Prior art] Conventionally, thin materials such as PP films and sheets were bonded using isobutylene or rubber adhesives, or directly heated and welded without using adhesives, but structural materials When bonding PP as a material, the above adhesives do not provide the desired adhesive strength, while welding methods are unsuitable when the bonding area is large. Therefore, epoxy resins are generally used as adhesives, and it is said that there are also cyanoacrylate resins that have undergone special modification treatment, and the tensile strength of the bonded parts of PP together, including these, is 20 to 50.
Kg/cm 2 , which is insufficient for structural adhesives. [Problems to be solved by the invention] The present invention has been made based on the above circumstances.
The present invention aims to provide an adhesion method that can bond PP together or PP and other materials with higher strength than before and in a stable state even at high temperatures. [Means for Solving the Problem] The method for adhering polypropylene resin of the first invention is to use an epoxy adhesive to adhere two pieces of polypropylene together, and then peel them off, and attach the adhesive to the surface of the epoxy adhesive attached to one of the polypropylene pieces. It is characterized by applying a small amount of cyanoacrylate adhesive, re-adhering, peeling off again, applying cyanoacrylate adhesive to the peeled surface, and then further adhering. In addition, in the method for adhering polypropylene resin of the second invention, after adhering polypropylene and a different material using an epoxy adhesive, the adhesive is peeled off, and a trace amount of cyanoacrylate adhesive is applied to the surface of the epoxy adhesive attached to the different material. It is characterized by applying and then re-adhering. The above-mentioned dissimilar materials basically mean materials that can be bonded using an epoxy adhesive (epoxy resin adhesive), and specifically include the following materials. Plastics other than polypropylene, e.g.
ABS, ASG, polycarbonate, etc. Metals such as iron, copper, zinc, tin, etc. Others such as wood, leather, paper, glass, ceramics, etc. [Function] Cyanoacrylate adhesives are also called instant adhesives and are known to be able to bond a wide range of materials in a few seconds, but they do not have the ability to bond to polyolefin resins such as polyethylene, polypropylene, and polystyrene. . The method of the present invention uses epoxy adhesive to
By adhering and solidifying PP materials or PP materials and other dissimilar materials, and then peeling them off, a trace amount of cyanoacrylate adhesive is added to the surface of the adhesive attached to one material, resulting in a higher adhesive strength than the initial one. It is characterized by the fact that it has been expressed. If a cyanoacrylate adhesive is simply added to an uncured epoxy adhesive, it will harden instantly and cannot be used as an adhesive. Although the adhesion mechanism of the method of the present invention is unknown, the addition of the cyanoacrylate adhesive modifies the molecular end groups in the once solidified epoxy adhesive, creating an intermolecular force between it and the PP molecules that is different from the initial one. It is assumed that this occurred. Note that there is no limit to the period from initial adhesion to re-adhesion after peeling, and there is no need to rush re-adhesion. Alternatively, it is also possible to apply epoxy adhesive to one material and allow it to harden without bonding, then drop instant adhesive onto the surface and only then adhere the other material. In such a case, if there is a minute gap between the surface of the solidified adhesive and the surface of the other material to be bonded, bonding becomes difficult. In this sense, bonding using only the original epoxy adhesive becomes necessary. [Example] Hereinafter, an example of the present invention will be described based on the drawings. Figure 1 illustrates the process of bonding PP/PP together, and shows a PP flat plate 1 with a length of 70 mm, a width of 15 mm, and a thickness of 1.5 mm.
After thoroughly cleaning the adhesive surface of step 2 with thinner,
G's epoxy adhesive product name "Hisole 608" 3 is attached to the end of the PP flat plate 1 side by about 25mm.
Apply to length. Press the end of the PP flat plate 2 (length: 25 mm) to the PP flat plate 1 with the epoxy adhesive 3 in between, and leave it at room temperature for about 20 minutes. Apply force in the direction of the arrow to the bonded PP flat plates 1 and 2 to peel them off. At this time, the epoxy adhesive 3 appears to have adhered to the PP flat plate 1 side for some reason, and may also have adhered to the PP flat plate 2 side. Instant adhesive (trade name “Aron Alpha” manufactured by Toagosei Kagaku Co., Ltd.) 4 on top of the epoxy adhesive 3
Drop about 50mg of the solution and immediately press the PP flat plate 2 to bond it in about 2 minutes. When force is applied again in the direction of the arrow, the epoxy adhesive 3 is peeled off, leaving it on the PP flat plate 2 side. This is because a metamorphic layer 5 is generated by adding the instant adhesive 4,
The intermolecular force between PP flat plate 2 and epoxy adhesive 3 is
This is because the intermolecular force between the PP flat plate 1 and the epoxy adhesive 3 became larger. Then, drop the instant adhesive 4 onto the newly peeled surface of the epoxy adhesive 3, immediately press the PP flat plate 1, and leave it for about 5 minutes. As shown in Figure 2, a metamorphosed layer 5 is formed on both sides of the epoxy adhesive 3. , it will not peel off even if you apply force with your hands. A bending test was carried out on the above-mentioned lap joint board at a room temperature of 20°C and a humidity of 40%, and the following results were obtained when comparing it with one made only of epoxy resin and one made by heat welding.
従来PP材の高強度接合は溶着法にたよるほか
はなかつたが溶着法は構造接着のような広い面積
に亘る接合には不向きであつた。しかるに本発明
により市販のエポキシ接着剤と瞬間接着剤を用い
て簡便に広い面積（0.5〜100cm2）での高強度接着
が可能となりPP樹脂の構造材としての用途が拡
げられた。
Conventionally, high-strength bonding of PP materials has been possible only by welding, but welding is not suitable for bonding over large areas such as structural bonding. However, the present invention has made it possible to easily bond high strength over a wide area (0.5 to 100 cm 2 ) using commercially available epoxy adhesives and instant adhesives, thereby expanding the use of PP resin as a structural material.
第１図は本発明実施例の工程図を表わし、第２
図は重ね継ぎ接着板の断面図を表わし、第３図は
曲げ試験の説明図を表わし、第４図は引張り強度
測定結果のグラフを表わす。
図中、１，２……PP平板、３……エポキシ接
着剤、４……瞬間接着剤、５……変成層。
FIG. 1 shows a process diagram of an embodiment of the present invention, and FIG.
The figure shows a cross-sectional view of the lap-spliced adhesive board, FIG. 3 shows an explanatory view of the bending test, and FIG. 4 shows a graph of the tensile strength measurement results. In the figure, 1, 2... PP flat plate, 3... epoxy adhesive, 4... instant adhesive, 5... metamorphosed layer.
Claims (1)
を接着させた後に剥離し、上記ポリプロピレンの
一方に付着したエポキシ接着剤の表面に微量のシ
アノアクリレート接着剤を施与してから再接着
し、再び剥離して、該剥離面にシアノアクリレー
ト接着剤を施与してから更に接着することを特徴
とするポリプロピレン樹脂の接着方法。 ２ エポキシ接着剤を用いてポリプロピレンと異
種材料とを接着させた後に剥離し、異種材料に付
着したエポキシ接着剤の表面に微量のシアノアク
リレート接着剤を施与してから再接着することを
特徴とするポリプロピレン樹脂の接着方法。[Claims] 1. After adhering polypropylene to each other using an epoxy adhesive, it is peeled off, and a small amount of cyanoacrylate adhesive is applied to the surface of the epoxy adhesive attached to one of the polypropylenes, and then re-adhered. A method for adhering polypropylene resin, which comprises removing the adhesive again, applying a cyanoacrylate adhesive to the peeled surface, and then performing further adhesion. 2 The method is characterized in that polypropylene and a different material are bonded together using an epoxy adhesive, then peeled off, and a small amount of cyanoacrylate adhesive is applied to the surface of the epoxy adhesive adhered to the different material before being reattached. Adhesion method for polypropylene resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26041784A JPS61138633A (en) | 1984-12-10 | 1984-12-10 | Bonding of polypropylene resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26041784A JPS61138633A (en) | 1984-12-10 | 1984-12-10 | Bonding of polypropylene resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61138633A JPS61138633A (en) | 1986-06-26 |
| JPH051293B2 true JPH051293B2 (en) | 1993-01-07 |
Family
ID=17347643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26041784A Granted JPS61138633A (en) | 1984-12-10 | 1984-12-10 | Bonding of polypropylene resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138633A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793886A (en) * | 1986-07-02 | 1988-12-27 | Cemedine Co., Ltd. | Bonding method and adhesive useful for the method |
-
1984
- 1984-12-10 JP JP26041784A patent/JPS61138633A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61138633A (en) | 1986-06-26 |
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