JPH08302039A - Surface modification of polypropylene molding for plating or bonding - Google Patents
Surface modification of polypropylene molding for plating or bondingInfo
- Publication number
- JPH08302039A JPH08302039A JP13730595A JP13730595A JPH08302039A JP H08302039 A JPH08302039 A JP H08302039A JP 13730595 A JP13730595 A JP 13730595A JP 13730595 A JP13730595 A JP 13730595A JP H08302039 A JPH08302039 A JP H08302039A
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene
- molding
- fluorine
- plating
- bonding
- 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.)
- Granted
Links
Landscapes
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はプロピレン成形品の表面
に容易にメッキをするため、又はポリプロピレン同士又
は他の樹脂や金属等との接着をさせるための表面改質方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface modification method for easily plating the surface of a propylene molded article or for adhering polypropylenes or other resins, metals or the like.
【０００２】[0002]
【従来の技術】ポリプロピレンの表面は疎水性でそのま
まではメッキ又は接着をすることが出来ない。ポリプロ
ピレン表面にメッキを施すためには、クロム−硫酸液に
よるエッチング、ＳＯ3ガスによるエッチングなどで極
性化と表面に凹凸を付ける方法が知られている。2. Description of the Related Art The surface of polypropylene is hydrophobic and cannot be plated or adhered as it is. In order to plate the polypropylene surface, a method is known in which the surface of the polypropylene is polarized and the surface is made uneven by etching with a chromium-sulfuric acid solution, etching with SO 3 gas or the like.
【０００３】接着のためにも同様なエッチングを行い、
その上にプライマー塗布をした上で接着剤を塗って接着
を行っている。しかし、これ等の処理法ではあらゆるグ
レードのポリプロピレンに対応出来るものではなく、又
コスト、設備、環境対策などの面でも問題が多い。Similar etching is performed for adhesion,
A primer is applied on top of this, and then an adhesive is applied for adhesion. However, these treatment methods cannot be applied to all grades of polypropylene, and there are many problems in terms of cost, equipment, environmental measures and the like.
【０００４】[0004]
【発明が解決しようとする課題】本発明はフッ素を用い
て容易にポリプロピレンの表面を改質し、親水性を付与
し、その上に無電解メッキを施す方法及び接着方法を開
発することにある。SUMMARY OF THE INVENTION The present invention is to develop a method for easily modifying the surface of polypropylene by using fluorine to impart hydrophilicity and applying electroless plating thereon, and an adhesive method. .
【０００５】[0005]
【課題を解決するための手段】この課題は、ポリプロピ
レン成形品を、フッ素と接触させるに際し、特にフッ素
濃度０．１〜１０％の雰囲気下で１〜３０分、好ましく
は１〜１５分間接触せしめて、表面の接触角を８０度以
下にして親水化させることにより解決される。This object is to bring a polypropylene molded article into contact with fluorine for 1 to 30 minutes, preferably 1 to 15 minutes, especially in an atmosphere having a fluorine concentration of 0.1 to 10%. This is solved by making the contact angle of the surface 80 degrees or less to make the surface hydrophilic.
【０００６】フッ素でポリオレフィン樹脂の表面を処理
し疎水性を向上させ撥水性にし、ガソリンの容器として
使用することは知られている。しかし乍らフッ素でポリ
オレフィン樹脂を処理したら、親水性になることは知ら
れていなかった。フッ素濃度が濃く温度が高めの条件で
はポリオレフィンの水素が全てフッ素に置換されて撥水
性となる。It is known to treat the surface of a polyolefin resin with fluorine to improve its hydrophobicity and make it water repellent and use it as a container for gasoline. However, it has not been known that treating a polyolefin resin with fluorine makes it hydrophilic. Under the condition that the concentration of fluorine is high and the temperature is high, all the hydrogen in the polyolefin is replaced with fluorine to make it water repellent.
【０００７】本発明者等はポリプロピレン成形品を特に
フッ素濃度０．１〜１０％の雰囲気に１〜３０分、好ま
しくは１〜１５分接触させることで、その表面を親水化
させ接触角を８０度以下に出来、惹いてはその表面に接
着性良くメッキ出来ることを見いだした。又この表面に
接着剤を塗布しその上に同じ処理したポリプロピレン、
又は他の樹脂や金属等を接着させると良い接着力を示す
ことを見いだした。The inventors of the present invention contact the polypropylene molded product with an atmosphere having a fluorine concentration of 0.1 to 10% for 1 to 30 minutes, preferably 1 to 15 minutes to hydrophilize the surface and make the contact angle 80. It was found that it could be done in less than 100 degrees, and attractively, the surface could be plated with good adhesion. In addition, polypropylene with the same treatment applied on this surface with an adhesive,
It has also been found that a good adhesive force is exhibited when other resin or metal is adhered.
【０００８】[0008]
【発明の作用】希薄なフッ素濃度で短時間、しかも常温
でポリプロピレン成形品の表面処理をすると、その表面
の水に対する接触角が低下し、通常９０〜１００度であ
るものが８０度以下、良い場合は７０度以下にまで低下
することが本発明者の研究により見いだされた。When the surface treatment of the polypropylene molded article is carried out at a room temperature for a short time with a dilute fluorine concentration, the contact angle of the surface with water is lowered, and normally 90 to 100 degrees is 80 degrees or less. In some cases, it was found by the study of the present inventor that the temperature dropped to 70 degrees or less.
【０００９】ポリプロピレンホモポリマーに対するフッ
素化を１０分間、フッ素濃度を変化させて行い、接触角
への影響を調べた。結果を表１に示した。Fluorination of polypropylene homopolymer was carried out for 10 minutes while changing the fluorine concentration, and the effect on contact angle was examined. The results are shown in Table 1.
【００１０】[0010]
【表１】 [Table 1]
【００１１】フッ素濃度が濃くなると接触角が大きくな
っていくことが認められた。フッ素濃度を２％にしてフ
ッ素化時間による影響を調べた結果を表２に示した。時
間が長くなると接触角が大きくなることが認められた。It has been found that the contact angle increases as the fluorine concentration increases. Table 2 shows the results of examining the influence of the fluorination time with the fluorine concentration set to 2%. It was observed that the contact angle increased as the time increased.
【００１２】[0012]
【表２】 [Table 2]
【００１３】但し表１は室温で、ポリプロピレン成形品
としては「ホモポリマーＪ１１５Ｇ」を使用したもので
あり、又表２は表１に於いてフッ素濃度２％の場合につ
いて、そのフッ素化時間だけを変えたものである。However, Table 1 shows room temperature, polypropylene moldings using "Homopolymer J115G", and Table 2 shows only the fluorination time when the fluorine concentration in Table 1 is 2%. It has been changed.
【００１４】フッ素を窒素で希釈した希薄ガスで穏和に
ポリオレフィンの水素をフッ素と置換すると、フッ素が
炭素と−ＣＨＦ−ＣＨＦ−又は−ＣＨ2−ＣＦ2の共有結
合を形成していることがＥＳＣＡの測定結果で明らかと
なった。ＥＳＣＡの測定結果を図１〜３に示す。When the hydrogen of the polyolefin is gently replaced with fluorine with a dilute gas obtained by diluting fluorine with nitrogen, ESCA indicates that fluorine forms a covalent bond between carbon and --CHF--CHF-- or --CH 2 --CF 2. It became clear by the measurement result of. The ESCA measurement results are shown in FIGS.
【００１５】図１は表面の深さ方向のスペクトルであ
る。フッ素のＦ1ｓのスペクトルは、表面の最上部に最
大の強度が示され、すぐに減衰している。このことは表
面の極上部のみがフッ素化されていることを示してい
る。FIG. 1 is a spectrum in the depth direction of the surface. The F 1 s spectrum of fluorine shows the highest intensity at the top of the surface and decays quickly. This indicates that only the very upper part of the surface is fluorinated.
【００１６】図２はＦ1ｓの結合エネルギーを示し、６
９ｌｅＶの吸収は共有結合であることを示している。FIG. 2 shows the binding energy of F 1 s, 6
Absorption of 9leV indicates covalent binding.
【００１７】図３は炭素Ｃ1ｓ結合エネルギーを示して
いる。２８７．９ｅＶの吸収は−ＣＦＨ−ＣＦＨ−の結
合を示し、２８６．８ｅＶの吸収は−Ｃ−ＣＦ2−の結
合を示している。これらは共有結合ではあるが共有結合
よりも少し低エネルギー側にあり、イオン性が強いこと
を示している。FIG. 3 shows the carbon C 1 s binding energy. Absorption of 287.9eV represents a bond -CFH--CFH-, absorption of 286.8eV is -C-CF 2 - represents a bond. Although these are covalent bonds, they are on the slightly lower energy side than covalent bonds, indicating that they are strongly ionic.
【００１８】又ヨウ化メチレンと水の２種の溶媒を用い
て接触角を測定し、そのデータから表面エネルギーを計
算した。結果を表３に示した。但し表３の表面エネルギ
ー（ｍＪ／ｍ２）は、The contact angle was measured using two solvents of methylene iodide and water, and the surface energy was calculated from the data. The results are shown in Table 3. However, the surface energy (mJ / m 2 ) in Table 3 is
【００１９】分散力成分（γ1）＋極性力成分（γ2）＝
表面エネルギー（ｍＪ／ｍ２） という関係式が成立する。Dispersion force component (γ 1 ) + polarity force component (γ 2 ) =
The relational expression of surface energy (mJ / m 2 ) holds.
【００２０】[0020]
【表３】 [Table 3]
【００２１】表３から明らかな通り表面エネルギーの極
性力成分が１．６ｍＪ／ｍ2から２５．０ｍＪ／ｍ2へと
大きくなり、固体表面のエネルギーとしては３１．３ｍ
Ｊ／ｍ2から４７．７ｍＪ／ｍ2へと大きく変化し、表面
が極性化された事を示している。As is apparent from Table 3, the polar force component of the surface energy increased from 1.6 mJ / m 2 to 25.0 mJ / m 2 , and the solid surface energy was 31.3 m.
J / m 2 changed significantly from 47.7 mJ / m 2 , indicating that the surface was polarized.
【００２２】親水性を示すポリプロピレンの表面が極性
化したのはＣ−Ｆの共有結合内で原子として最大の電気
陰性度を示すフッ素により、電子の局在化が起こされた
為に、イオン性になったからであると考えられる。The surface of the polypropylene having hydrophilicity is polarized because the electron, which has the maximum electronegativity as an atom in the covalent bond of CF, causes the localization of electrons. It is thought to be because it became.
【００２３】更にポリプロピレンの表面をフッ素化の前
後で電子顕微鏡写真を撮り、表面の状態を調べたが、表
面の荒れには差が認められなかった。Further, electron microscope photographs were taken on the surface of polypropylene before and after fluorination to examine the surface condition, but no difference was observed in the surface roughness.
【００２４】今までの表面処理の方法では極性化はされ
るが、同時にエッチングにより表面が凹凸にされてい
た。そのためメッキの付着性又は接着は表面の極性とア
ンカー効果の寄与によりされるものと考えられていた。Although the surface treatment methods used so far are polarized, at the same time, the surface is made uneven by etching. Therefore, it has been considered that the adhesion or adhesion of the plating is due to the surface polarity and the contribution of the anchor effect.
【００２５】しかし、本発明の処理方法により、フッ素
化されたポリプロピレンの表面は平坦である。従ってフ
ッ素により発現された強い極性力によりメッキが付着
し、又接着力を発現すると考えられる。濃い濃度のフッ
素ガス又は長時間処理すると撥水性の方向になるのでフ
ッ素ガス濃度０．１〜１０％、好ましくは０．５〜５％
で１〜３０分、好ましくは１〜１５分、特に好ましくは
１〜１０分の処理で親水化させるのが良い。However, according to the treatment method of the present invention, the surface of the fluorinated polypropylene is flat. Therefore, it is considered that the plating adheres due to the strong polar force developed by the fluorine and also develops the adhesive force. Fluorine gas of high concentration or 0.1 to 10% of fluorine gas concentration, preferably 0.5 to 5%, because it tends to be water repellent when treated for a long time.
It is preferable to hydrophilize by treatment for 1 to 30 minutes, preferably 1 to 15 minutes, and particularly preferably 1 to 10 minutes.
【００２６】ポリプロピレンの表面をフッ素で処理後、
無電解メッキし、その表面をＪＩＳＨ８６３０の方法で
剥離テストを行った。その結果接触角が８０度以下のも
のは全然剥離しなかった。８０度を越えるとメッキが付
かなかった。この結果接触角が８０度以下でないとメッ
キの付着性に好結果は得られない。After treating the surface of polypropylene with fluorine,
Electroless plating was performed and the surface was subjected to a peeling test by the method of JIS H8630. As a result, those having a contact angle of 80 degrees or less did not peel at all. No plating was applied when the temperature exceeded 80 degrees. As a result, if the contact angle is not less than 80 degrees, good results cannot be obtained for the adhesion of plating.
【００２７】ポリプロピレンの表面をフッ素で処理し、
接着剤を塗布し、その上に同じ処理したポリプロピレン
又は金属等を接着し接着強度をＪＩＳ Ｋ−６８５０の
方法で引っ張り試験を実施した。接触角が８０度以下の
ものは良い接着性を示した。The surface of polypropylene is treated with fluorine,
An adhesive was applied, and the same treated polypropylene, metal or the like was adhered thereon, and the adhesive strength was subjected to a tensile test by the method of JIS K-6850. Those having a contact angle of 80 degrees or less showed good adhesion.
【００２８】フッ素処理していないポリプロピレン表面
にエポキシ系接着剤のアラルダイト（商品名）を塗布し
ても接着剤が乾固後シート状に剥離を起こし全然接着性
を示さなかった。Even when the epoxy-based adhesive Araldite (trade name) was applied to the surface of polypropylene that had not been treated with fluorine, the adhesive peeled into a sheet after being dried and showed no adhesiveness at all.
【００２９】本発明に於いて使用するポリプロピレンと
しては、ホモポリマーばかりでなく、コーポリマーも含
まれる。コーポリマーとしてはランダムコーポリマー及
びブロックコーポリマーが含まれ、ポリプロピレン以外
の他のモノマーとしてはエチレンである。The polypropylene used in the present invention includes not only homopolymers but also copolymers. Copolymers include random and block copolymers, and other monomers besides polypropylene are ethylene.
【００３０】本発明に於けるフッ素濃度０．１〜１０％
はフッ素ガスと他の不活性ガスとの混合ガス中にフッ素
が０．１〜１０％含有されているものを指し、この際の
不活性ガスとしては、たとえばＮ2、アルゴンヘリウ
ム、炭酸ガス等が使用される。この際該濃度が０．１％
未満の場合は所期の効果が得難く、又１０％より高くな
ると既に述べた通り接触角を８０度以下とすることは出
来ない。Fluorine concentration in the present invention 0.1 to 10%
Means that a mixed gas of fluorine gas and other inert gas contains 0.1 to 10% of fluorine, and the inert gas at this time is, for example, N 2 , argon helium, carbon dioxide gas or the like. Is used. At this time, the concentration is 0.1%
If it is less than the above, the desired effect is difficult to obtain, and if it exceeds 10%, the contact angle cannot be set to 80 degrees or less as described above.
【００３１】接触せしめる手段は特に制限されず、要は
ポリプロピレン成形品表面が全面均一に接触する手段で
あれば良い。The means for contacting is not particularly limited, and any means may be used as long as the surface of the polypropylene molded product is in uniform contact with the entire surface.
【００３２】本発明法により得られる表面改質されたポ
リプロピレン成形品はこれにメッキを施したり、接着剤
で接着可能となる。The surface-modified polypropylene molded product obtained by the method of the present invention can be plated or bonded with an adhesive.
【００３３】メッキを施すに際しては、従来のメッキ方
法に従ってメッキを施せば良く、通常無電解メッキが適
用される。The plating may be performed according to a conventional plating method, and electroless plating is usually applied.
【００３４】接着に際しては、本発明法により処理した
ポリプロピレン成形体に更にポリプロピレン成形体を接
着するに際しては、両者とも本発明の処理を行った後で
接着することが好ましい。In adhering, when further adhering the polypropylene molded body to the polypropylene molded body treated by the method of the present invention, it is preferable that both are adhered after the treatment of the present invention.
【００３５】又他の各種の成形体とも接着出来、たとえ
ば他の樹脂、各種金属、セラミックス、木材等と通常の
接着方法で接着することが出来る。Also, it can be adhered to other various molded products, for example, it can be adhered to other resins, various metals, ceramics, wood and the like by a usual adhesion method.
【００３６】接着方法並びに接着剤は各種の方法や接着
剤が適宜に選択されて使用される。たとえばプライマー
を予め塗布し又はせずに接着剤を用いて接着すれば良
い。使用される接着剤としては特に限定されないが、た
とえばエポキシ系やシアノアクリレート系接着剤を好ま
しいものとして挙げることが出来る。As the bonding method and the adhesive, various methods and adhesives are appropriately selected and used. For example, the primer may be applied in advance or may be adhered using an adhesive. The adhesive used is not particularly limited, but, for example, epoxy-based and cyanoacrylate-based adhesives can be mentioned as preferable ones.
【００３７】[0037]
【実施例】以下に実施例を示して本発明を更に具体的に
説明する。EXAMPLES The present invention will be described more specifically with reference to the following examples.
【００３８】[0038]
【実施例１】３種類のポリプロピレンのシートを容器内
に入れ、容器を真空にした。そこに室温で１％Ｆ2／９
９％Ｎ2又は５％Ｆ2／９５％Ｎ2の混合ガスを導入し、
１０分後窒素で容器内を置換してから、サンプルを取り
出し接触角を測定した。接触角は協和界面科学（株）の
ＣＡ−ＤＴ型接触角測定装置を用いて超純水で測定し
た。Example 1 Three types of polypropylene sheets were placed in a container and the container was evacuated. At room temperature there 1% F 2/9
Introducing a mixed gas of 9% N 2 or 5% F 2 /95% N 2 ,
After 10 minutes, the inside of the container was replaced with nitrogen, and then the sample was taken out and the contact angle was measured. The contact angle was measured with ultrapure water using a CA-DT type contact angle measuring device manufactured by Kyowa Interface Science Co., Ltd.
【００３９】用いたポリプロピレンサンプルは以下の通
りである。 Ａ ：エチレン／プロピレン ブロックポリマー Ｂ ：エチレン／プロピレン ランダムポリマー Ｃ ：ホモポリマー ＢＬ：ブランク値（無処理） １ ：１％Ｆ2／９９％Ｎ2 ２ ：５％Ｆ2／９５％Ｎ2 結果を表４に示した。The polypropylene samples used are as follows. A: ethylene / propylene block polymer B: ethylene / propylene random polymer C: homopolymer BL: blank value (untreated) 1: 1% F 2 /99% N 2 2: 5% F 2 /95% N 2 result The results are shown in Table 4.
【００４０】[0040]
【表４】 [Table 4]
【００４１】これ等の接触角は１．５ケ月後に測定して
も変化はなかった。この結果フッ素化された表面は経時
変化しないことが確認された。These contact angles did not change when measured after 1.5 months. As a result, it was confirmed that the fluorinated surface did not change with time.
【００４２】[0042]
【実施例２】実施例１で得られたサンプルに、ニッケル
の無電解メッキを行った。サンプルの表面を超純水で洗
浄後、塩化すず（ＳｎＣｌ2：４０g／Ｌ，ＨＣｌ（３７
％）：４０ｍＬ／Ｌ）の溶液に室温で３分間浸漬した。
水洗後塩化パラジウム（ＰｄＣｌ2：０．２g／Ｌ，ＨＣ
Ｌ（３７％）：３ｍＬ／Ｌ）の溶液に室温で３分間浸漬
した。水洗後ニッケルメッキ浴（次亜燐酸ニッケル：２
６．７g／Ｌ、ほう酸：１２．０g／Ｌ、硫酸アンモニウ
ム：２．６g／Ｌ、硫酸ナトリウム：４．９g／Ｌ）に２
５〜３０℃で１時間浸漬してメッキした。メッキした試
験片を６０℃、１時間安定化処理してから、その表面に
１ｍｍ間隔で切り目を入れ、粘着テープを張り付け、引
きはがして１００個の格子のうちメッキ皮膜の剥がれた
数を評価値とした。テスト結果を表５に示した。剥離度
は全然剥がれなかった場合が０％である。Example 2 The sample obtained in Example 1 was electrolessly plated with nickel. After washing the surface of the sample with ultrapure water, tin chloride (SnCl 2 : 40 g / L, HCl (37
%): 40 mL / L) at room temperature for 3 minutes.
After washing with water Palladium chloride (PdCl 2 : 0.2 g / L, HC
It was immersed in a solution of L (37%): 3 mL / L for 3 minutes at room temperature. After washing with water, nickel plating bath (nickel hypophosphite: 2
6.7 g / L, boric acid: 12.0 g / L, ammonium sulfate: 2.6 g / L, sodium sulfate: 4.9 g / L) 2
It was immersed for 1 hour at 5 to 30 ° C. and plated. Stabilize the plated test piece for 1 hour at 60 ° C, then make incisions on the surface at 1 mm intervals, attach adhesive tape, and peel off the number of peeled plating films from 100 grids. And The test results are shown in Table 5. The degree of peeling is 0% when no peeling occurs.
【００４３】[0043]
【表５】 [Table 5]
【００４４】[0044]
【実施例３】実施例１で得られたサンプルに銅の無電解
メッキを行った。サンプルの表面を超純水で洗浄後、塩
化すず（ＳｎＣｌ2：４０g／Ｌ，ＨＣｌ（３７％）：４
０ｍＬ／Ｌ）の溶液に室温で３分間浸漬した。水洗後塩
化パラジウム（ＰｄＣｌ2：０．２g／Ｌ，ＨＣＬ（３７
％）：３ｍＬ／Ｌ）の溶液に室温で３分間浸漬した。水
洗後銅メッキ浴（硫酸銅：１２．０g／Ｌ、ロッセル
塩：３０．０g／Ｌ、３６％ホルマリン液：４０ｍＬ／
Ｌ，チオ尿素：１ｍg／Ｌ，ｐＨ＝１２．５）に５０〜
７０℃で１時間浸漬してメッキした。メッキした試験片
を６０℃、１時間安定化処理してから、その表面に１ｍ
ｍ間隔で切り目を入れ、粘着テープを張り付け、引きは
がして１００個の格子のうちメッキ皮膜の剥がれた数を
評価値とした。テスト結果を表６に示した。剥離度は全
然剥がれなかった場合が０％である。Example 3 The sample obtained in Example 1 was electrolessly plated with copper. After cleaning the surface of the sample with ultrapure water, tin chloride (SnCl 2 : 40 g / L, HCl (37%): 4)
It was immersed in a solution of 0 mL / L) at room temperature for 3 minutes. After washing with water, palladium chloride (PdCl 2 : 0.2 g / L, HCL (37
%): 3 mL / L) at room temperature for 3 minutes. After washing with water, copper plating bath (copper sulfate: 12.0 g / L, Rossell salt: 30.0 g / L, 36% formalin solution: 40 mL /
L, thiourea: 1 mg / L, pH = 12.5) 50 to 50
It was plated by immersing it at 70 ° C. for 1 hour. Stabilize the plated test piece at 60 ° C for 1 hour, and then apply 1m to the surface.
Incisions were made at m intervals, an adhesive tape was attached, peeled off, and the number of peeled plating films out of 100 grids was taken as the evaluation value. The test results are shown in Table 6. The degree of peeling is 0% when no peeling occurs.
【００４５】[0045]
【表６】 [Table 6]
【００４６】[0046]
【実施例４】ポリプロピレンホモポリマーシート２枚を
０．５％フッ素濃度で１０分間処理した後、アラルダイ
トを塗布して接着させ、２４時間後引っ張りテストを実
施した。引っ張り強度２０Ｎ／ｍｍ2と良い強度を示し
た。Example 4 Two polypropylene homopolymer sheets were treated at a fluorine concentration of 0.5% for 10 minutes, and then araldite was applied and adhered thereto, and after 24 hours, a tensile test was carried out. The tensile strength was as good as 20 N / mm 2 .
【００４７】[0047]
【実施例５】ポリプロピレンホモポリマーシートを０．
５％フッ素濃度で１０分間処理した後、アラルダイトを
塗布しその上にアルミニウムシートを接着させ、２４時
間後引っ張りテストを実施した。引っ張り強度２５Ｎ／
ｍｍ2と良い強度を示した。[Example 5] A polypropylene homopolymer sheet was prepared by adding 0.
After treating with a 5% fluorine concentration for 10 minutes, Araldite was applied and an aluminum sheet was adhered thereon, and a tensile test was carried out after 24 hours. Tensile strength 25N /
It showed a good strength of mm 2 .
【００４８】[0048]
【実施例６】ポリプロピレンホモポリマーのシート２枚
を０．５％フッ素濃度で１０分間処理した後、商品名シ
アノボンド（シアノアクリレート系接着剤）を塗布して
接着させ、２４時間後引っ張りテストを実施した。引っ
張り強度２５Ｎ／ｍｍ2と良い強度を示した。[Example 6] Two polypropylene homopolymer sheets were treated with 0.5% fluorine concentration for 10 minutes, coated with a product name cyanobond (cyanoacrylate adhesive) and adhered, and a tensile test was conducted after 24 hours. did. The tensile strength was as good as 25 N / mm 2 .
【図１】フッ素処理されたポリプロピレン成形体のＥＳ
ＣＡの測定結果であり、表面の深さ方向のフッ素（Ｆ1
ｓ）のスペクトルを示す。FIG. 1 ES of fluorinated polypropylene molding
It is the measurement result of CA, and the fluorine (F 1
The spectrum of s) is shown.
【図２】フッ素処理されたポリプロピレン成形体のＥＳ
ＣＡの測定結果であり、フッ素（Ｆ1ｓ）の結合エネル
ギーを表す。FIG. 2 ES of fluorinated polypropylene molding
It is the measurement result of CA and represents the binding energy of fluorine (F 1 s).
【図３】フッ素処理されたポリプロピレン成形体のＥＳ
ＣＡの測定結果であり、炭素（Ｃ1ｓ）の結合エネルギ
ーを表す。FIG. 3 ES of fluorinated polypropylene molding
It is a measurement result of CA and represents the binding energy of carbon (C 1 s).
Claims (1)
〜１０％の雰囲気に１〜３０分接触させて、その表面を
親水化させ、接触角を８０度以下にすることを特徴とす
るメッキ又は接着のためのポリプロピレン成形品の表面
改質方法。1. A polypropylene molded article having a fluorine concentration of 0.1.
A method for modifying the surface of a polypropylene molded product for plating or adhesion, which comprises bringing the surface into contact with an atmosphere of -10% for 1 to 30 minutes to make the surface hydrophilic and setting the contact angle to 80 degrees or less.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13730595A JP3616830B2 (en) | 1995-05-10 | 1995-05-10 | Surface modification method for polypropylene molded products for plating or adhesion |
| US08/516,335 US5837323A (en) | 1994-09-01 | 1995-08-17 | Surface improving method of polypropylene products for plating, joining or coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13730595A JP3616830B2 (en) | 1995-05-10 | 1995-05-10 | Surface modification method for polypropylene molded products for plating or adhesion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08302039A true JPH08302039A (en) | 1996-11-19 |
| JP3616830B2 JP3616830B2 (en) | 2005-02-02 |
Family
ID=15195585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13730595A Expired - Fee Related JP3616830B2 (en) | 1994-09-01 | 1995-05-10 | Surface modification method for polypropylene molded products for plating or adhesion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3616830B2 (en) |
-
1995
- 1995-05-10 JP JP13730595A patent/JP3616830B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3616830B2 (en) | 2005-02-02 |
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