JP2016194086A - 両面接着テープ - Google Patents
両面接着テープ Download PDFInfo
- Publication number
- JP2016194086A JP2016194086A JP2016134740A JP2016134740A JP2016194086A JP 2016194086 A JP2016194086 A JP 2016194086A JP 2016134740 A JP2016134740 A JP 2016134740A JP 2016134740 A JP2016134740 A JP 2016134740A JP 2016194086 A JP2016194086 A JP 2016194086A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy resin
- double
- mass
- parts
- sided adhesive
- 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
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Abstract
【解決手段】本発明の両面接着シートは、基材と、基材の両面に積層される熱硬化樹脂層とを備え、熱硬化樹脂層が、ゴム変性エポキシ樹脂と、潜在性硬化剤と、ウレタンアクリレート樹脂と、を含有し、熱硬化樹脂層のフローテスター粘度が、40℃、荷重20Kgにおいて、1000Pa・s以上7000Pa・s以下である。
【選択図】なし
Description
表1に示す配合処方において、各成分を配合し、ミキシングロールで混練することにより混練物(熱硬化性樹脂組成物)を調製した。なお、この混練においては、まず、エポキシ樹脂、ゴム変性エポキシ樹脂、充填剤、靭性付与剤を、120℃に加熱したミキシングロールで混練した後、この混練物を、60〜100℃に冷却し、さらに、潜在性硬化剤を加えて、ミキシングロールで混練して、混練物を得た。
得られた各実施例、各参考例および各比較例の両面接着テープについて、油面せん断接着力測定、油面T形剥離力測定、油面剥離紙剥離性試験、および、フローテスター粘度測定を、次のように実施した。その結果を表1に示す。
(1)油面せん断接着力測定
ダフニーオイルコートRL55(出光興産社製)を塗布した幅25mm×長さ100mm×厚み0.8mmの冷間圧延鋼板(SPCC−SD、日本テストパネル社製)を2枚用意した。
(2)油面T形剥離力測定
ダフニーオイルコートRL−55(出光興産社製)を塗布し、直角に折り曲げた幅25mm×長さ150mm×厚み0.8mmの冷間圧延鋼板(SPCC−SD、日本テストパネル社製)を2枚用意した。
(3)油面剥離紙剥離性試験
各実施例、各参考例および各比較例の両面接着テープを幅25mm×長さ150mmに、それぞれ切り出し、切り出した各両面接着テープの一方面の離型紙を剥がした。そして、各両面接着テープを、ダフニーオイルコートRL−55(出光興産社製)を塗布した幅40mm×長さ100mm×厚み0.8mmの冷間圧延鋼板(SPCC−SD、日本テストパネル社製)に、2Kgのローラにより圧着させた。そして、圧着から5秒後に、両面接着テープの他方面の剥離紙を剥がすことができるかを確認し、下記の基準により評価した。
○:両面接着テープ端部に冷間圧延鋼板上からの浮き上がりや剥がれが発生せずに、他方面の剥離紙の剥離が可能である。
×:他方面の剥離紙と共に、両面接着テープが冷間圧延鋼板上から浮き上がり、他方面の剥離紙の剥離が不能である。
(4)フローテスター粘度測定
各実施例、各参考例および各比較例における、混練物(熱硬化性樹脂組成物)のフローテスター粘度を、JISK7210(熱可塑性プラスチックの流れ試験方法)に準拠し、島津製作所社製のCFT−500により測定した。
半固形エポキシ樹脂:常温半固形ビスフェノールA型エポキシ樹脂(商品名:エピコート(登録商標)♯834、エポキシ当量270g/eq.、三菱化学社製)
固形エポキシ樹脂:常温固形ビスフェノールA型エポキシ樹脂(商品名:エピコート(登録商標)♯1001、エポキシ当量450〜500g/eq.、三菱化学社製)
液状ゴム変性エポキシ樹脂:液状CTBN変性エポキシ樹脂(商品名:EPR1415−1、エポキシ当量400g/eq.、ADEKA社製)
固形ゴム変性エポキシ樹脂:固形CTBN変性エポキシ樹脂(商品名:HypoxRK84L、エポキシ当量1200〜1800g/eq.、CVC Specialty Chemicals社製)
尿素系化合物:3−(3,4−ジクロロフェニル)−1,1−ジメチルウレア(商品名:DCMU、保土ヶ谷化学社製)
ジシアンジアミド(商品名:DDA−50、CVC Specialty Chemicals社製)
疎水性シリカ:ジメチルシリコーンオイル表面処理シリカ(商品名:AEROJIL RY200、平均粒子径12μm、日本アエロジル社製)
ガラスパウダー:ガラス粉(商品名:PF70E−001、比重2.58、平均繊維長10.5μm、日東紡社製)
コアシェル型アクリルポリマーゴム粒子:コアシェルアクリレート共重合体微粒子(商品名:ゼフィアックF351、一次粒子径0.3μm、真比重1.13、ガンツ化成社製)
ウレタンポリマー:ウレタンアクリレート(商品名:アンカレッツ2364、比重1.1、粘度30000mPa・s、エアプロダクツ社製)
Claims (4)
- 基材と、
前記基材の両面に積層される熱硬化樹脂層とを備え、
前記熱硬化樹脂層が、ゴム変性エポキシ樹脂と、潜在性硬化剤と、ウレタンアクリレート樹脂と、を含有し、
前記熱硬化樹脂層のフローテスター粘度が、40℃、荷重20Kgにおいて、1000Pa・s以上7000Pa・s以下であることを特徴とする、両面接着テープ。 - 前記ゴム変性エポキシ樹脂が、液状ゴム変性エポキシ樹脂および固形ゴム変性エポキシ樹脂を含有することを特徴とする、請求項1に記載の両面接着テープ。
- 前記潜在性硬化剤が、尿素系化合物を含有することを特徴とする、請求項1または2に記載の両面接着テープ。
- 前記基材の厚みが、25μm以上であることを特徴とする、請求項1〜3のいずれか一項に記載の両面接着テープ。
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JPS63191880A (ja) * | 1987-02-04 | 1988-08-09 | Nitto Electric Ind Co Ltd | 接着シ−トおよびその製造方法 |
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JPH02252779A (ja) * | 1989-03-27 | 1990-10-11 | Nitto Denko Corp | 熱硬化性接着テープ |
JPH02296879A (ja) * | 1989-05-11 | 1990-12-07 | Nitto Denko Corp | 光硬化型接着剤組成物 |
JPH04106181A (ja) * | 1990-08-24 | 1992-04-08 | Yamaide Kosan Kk | フッ素樹脂積層防水シート用シール材 |
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JP2011038369A (ja) * | 2009-08-18 | 2011-02-24 | Nitto Denko Corp | 板状物の補強方法および板状物の補強構造 |
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