JP2011213107A - 樹脂成形品用補強シート、樹脂成形品の補強構造および補強方法 - Google Patents
樹脂成形品用補強シート、樹脂成形品の補強構造および補強方法 Download PDFInfo
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- JP2011213107A JP2011213107A JP2011051462A JP2011051462A JP2011213107A JP 2011213107 A JP2011213107 A JP 2011213107A JP 2011051462 A JP2011051462 A JP 2011051462A JP 2011051462 A JP2011051462 A JP 2011051462A JP 2011213107 A JP2011213107 A JP 2011213107A
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- Prior art keywords
- resin molded
- molded product
- reinforcing
- reinforcing sheet
- heating
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Links
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Abstract
【解決手段】拘束層3と、拘束層3に積層される補強層2とを備え、補強層2を厚み2.0mmのポリプロピレン板に貼着し、80℃で10分間加熱後の1mm変位の曲げ強度が3N以上、かつ、最大曲げ強度が30N以上であり、高温粘着保持率Rが、80%以上である樹脂成形品用補強シート1を、樹脂成形品4に貼着して、80〜100℃で加熱する。
【選択図】図1
Description
100℃の1000時間加熱後粘着力A1000h:前記補強層をポリプロピレン板に貼着し、80℃で10分間加熱し、その後、100℃で1000時間加熱後に、剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験により測定されるポリプロピレン板に対する粘着力
100℃の1時間加熱後粘着力A1h:前記補強層をポリプロピレン板に貼着し、80℃で10分間加熱し、その後、100℃で1時間加熱後に、剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験により測定されるポリプロピレン板に対する粘着力
また、本発明の樹脂成形品用補強シートでは、前記補強層をポリプロピレン板に貼着し、80℃で10分間加熱後に、剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験により測定されるポリプロピレン板に対する粘着力A10mが、15N/25mm以上であることが好適である。
表1に示す配合処方において、各成分を重量部基準で配合して、120℃に予め加熱したミキシングロールで混練することにより、粘着剤組成物の混練物を調製した。
ビスフェノールA型エポキシ樹脂(♯834、ジャパンエポキシレジン社製)100重量部に対して、ジシアンジアミド(DCDA、硬化剤)5重量部およびイミダゾール化合物(2MAOK、硬化剤、四国化成社製)2重量部、タルク(商品名「輸入タルク」、ケイ酸マグネシウム、ソブエクレー社製)100重量部、オルガナイト(有機ベントナイト、日本有機粘土社製)10重量部、カーボンブラック(旭♯50、絶縁性カーボンブラック、旭カーボン社製)0.5重量部を配合し、80℃に予め加熱したミキシングロールで混練することにより、粘着剤組成物の混練物を調製した。
得られた各実施例および各比較例について、曲げ強度、貯蔵弾性率および粘着力を次のように評価した。その結果を表1に示す。
1)樹脂成形品用補強シートの曲げ強度
各実施例および各比較例の樹脂成形品用補強シートを、厚み2.0mmのポリプロピレン板に貼着し、これらを80℃で10分間加熱した後、三点曲げ試験により、1mm変位時の曲げ強度および最大曲げ強度を、それぞれ測定した。
2)補強層の貯蔵弾性率(G’)
実施例1〜3、比較例1および2において形成した補強層のみの、25℃および80℃における貯蔵弾性率(G’)を、動的粘弾性測定装置により測定した。
使用治具 :パラレルプレート
サンプル厚さ約1.0mm
直径7.9mm
測定条件 :初期ひずみ0.1%
昇温速度5℃/分
周波数1Hz
3)補強層の粘着力(常温時粘着力A0、80℃の加熱後粘着力A10m、100℃の加熱後粘着力Axh)
各実施例および各比較例において形成した補強層のみを、剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験によって、ポリプロピレン板に対する次に述べる各粘着力を測定した。
(i) 常温時粘着力A0
まず、実施例および各比較例の補強層のみを、常温(25℃)でポリプロピレン板に貼着し、その後、ポリプロピレン板に対する粘着力(常温時粘着力)A0を測定した。
(ii) 80℃の加熱後粘着力A10m
まず、各実施例および各比較例の補強層のみを、常温(25℃)でポリプロピレン板に貼着し、次いで、それらを80℃で10分間加熱した後に、ポリプロピレン板に対する粘着力(80℃の10分間加熱後粘着力)A10mを測定した。
(iii) 100℃の加熱後粘着力
まず、実施例1〜10および比較例1の補強層のみを、常温(25℃)でポリプロピレン板に貼着し、次いで、それらを80℃で10分間加熱し、その後、100℃で1時間加熱した後に、ポリプロピレン板に対する粘着力(100℃の1時間加熱後粘着力)A1hを測定した。
H1052:商品名「タフテックH1052」、スチレン−エチレン−ブチレン−スチレンブロック共重合体、スチレン/エチレン・ブタジエン比:20重量%/80重量%、MFR(190℃、2.16kg):3g/10分、MFR(200℃、5kg):10g/10分、旭化成ケミカルズ社製
ビスフェノールA型エポキシ樹脂:商品名「♯834」、外観:常温で液状、70%ブチルカルビトール溶液粘度:P〜U、ジャパンエポキシレジン社製
T420:商品名「アサプレンT420」、スチレン/ブタジエン比:30重量%/70重量%、MFR(190℃、2.16kg):1.1g/10分、MFR(200℃、5kg):6.5g/10分、旭化成ケミカルズ社製
T432:商品名「アサプレンT432」、スチレン/ブタジエン比:30重量%/70重量%、MFR(190℃、2.16kg):0g/10分、MFR(200℃、5kg):1g/10分未満、旭化成ケミカルズ社製
アルコンM100:商品名、脂環族飽和炭化水素系樹脂、軟化点(環球法)100℃、荒川化学工業社製
アルコンP100:商品名、脂環族飽和炭化水素系樹脂、軟化点(環球法)100℃、荒川化学工業社製
クリアロンP85:商品名、水素添加テルペン樹脂(テルペン系樹脂)、軟化点(環球法)85℃、重量平均分子量630(標準PS換算に基づくGPC法)、ガラス転移点(DSC法)28℃、ヤスハラケミカル社製
YSポリスターU115:商品名、テルペンフェノール共重合体(テルペン系樹脂)、軟化点(環球法)115℃、ガラス転移点(DSC法)57℃、重量平均分子量670(標準PS換算に基づくGPC法)、ヤスハラケミカル社製
ペトロタック90HM:商品名、炭化水素系石油樹脂、軟化点(環球法)88℃、東ソー社製
重質炭酸カルシウム:丸尾カルシウム社製
旭♯50:商品名、カーボンブラック、旭カーボン社製
タルク:商品名「輸入タルク」、ケイ酸マグネシウム、ソブエクレー社製
オルガナイト:商品名、有機ベントナイト、日本有機粘土社製
ノクラックMB:商品名、2−メルカプトベンズイミダゾール、大内新興化学工業社製
DCDA:ジシアンジアミド、発泡剤
イミダゾール化合物:商品名「2MAOK」、硬化剤、四国化成社製
2 補強層
3 拘束層
4 樹脂成形品
Claims (15)
- 拘束層と、前記拘束層に積層される補強層とを備える樹脂成形品用補強シートであって、
前記樹脂成形品用補強シートを厚み2.0mmのポリプロピレン板に貼着し、80℃で10分間加熱後の1mm変位の曲げ強度が3N以上、かつ、最大曲げ強度が30N以上であり、下記の高温粘着保持率Rが、80%以上であることを特徴とする、樹脂成形品用補強シート。
高温粘着保持率R=(100℃の1000時間加熱後粘着力A1000h/100℃の1時間加熱後粘着力A1h)×100
100℃の1000時間加熱後粘着力A1000h:前記補強層をポリプロピレン板に貼着し、80℃で10分間加熱し、その後、100℃で1000時間加熱後に、剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験により測定されるポリプロピレン板に対する粘着力
100℃の1時間加熱後粘着力A1h:前記補強層をポリプロピレン板に貼着し、80℃で10分間加熱し、その後、100℃で1時間加熱後に、剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験により測定されるポリプロピレン板に対する粘着力 - 前記補強層をポリプロピレン板に貼着し、80℃で10分間加熱後に、剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験により測定されるポリプロピレン板に対する粘着力A10mが、15N/25mm以上であることを特徴とする、請求項1に記載の樹脂成形品用補強シート。
- 100℃の1時間加熱後粘着力A1hが、50N/25mm以上であることを特徴とする、請求項1または2に記載の樹脂成形品用補強シート。
- 前記補強層は、25℃における貯蔵弾性率が500kPa以上、かつ、80℃における貯蔵弾性率が500kPa以下であることを特徴とする、請求項1〜3のいずれかに記載の樹脂成形品用補強シート。
- 剥離速度300mm/分でJIS Z0237(2000年)の90度ピール試験により測定されるポリプロピレン板に対する常温時粘着力A0が、0.3N/25mm以上であることを特徴とする、請求項1〜4のいずれかに記載の樹脂成形品用補強シート。
- 前記補強層が、熱接着型の粘着剤組成物から形成されていることを特徴とする、請求項1〜5のいずれかに記載の樹脂成形品用補強シート。
- 前記粘着剤組成物が、共役ジエン類を含む単量体の重合体の水素添加物を含有していることを特徴とする、請求項6に記載の樹脂成形品用補強シート。
- 前記粘着剤組成物が、さらに、粘着付与剤を含有していることを特徴とする、請求項7に記載の樹脂成形品用補強シート。
- 前記粘着付与剤が、脂環族飽和炭化水素系樹脂を含有していることを特徴とする、請求項8に記載の樹脂成形品用補強シート。
- 前記粘着付与剤が、テルペン系樹脂をさらに含有していることを特徴とする、請求項9に記載の樹脂成形品用補強シート。
- 前記粘着付与剤の配合割合が、前記水素添加物100重量部に対して、40〜200重量部であることを特徴とする、請求項8〜10のいずれかに記載の樹脂成形品用補強シート。
- 請求項1〜11のいずれかに記載の樹脂成形品用補強シートを樹脂成形品に貼着し、次いで、80℃以上に加熱して、前記樹脂成形品用補強シートを前記樹脂成形品に密着させることにより、前記樹脂成形品が補強されていることを特徴とする、樹脂成形品の補強構造。
- 前記樹脂成形品用補強シートを、予め、80℃以上に加熱し、次いで、前記樹脂成形品用補強シートを前記樹脂成形品に貼着することを特徴とする、請求項12に記載の樹脂成形品の補強構造。
- 請求項1〜11のいずれかに記載の樹脂成形品用補強シートを樹脂成形品に貼着する工程、および、
前記樹脂成形品用補強シートおよび/または前記樹脂成形品を80℃以上に加熱して、前記樹脂成形品用補強シートを前記樹脂成形品に密着させることにより、前記樹脂成形品を補強する工程
を備えていることを特徴とする、樹脂成形品の補強方法。 - 前記樹脂成形品用補強シートを前記樹脂成形品に貼着する工程では、前記樹脂成形品用補強シートを、予め、80℃以上に加熱し、次いで、前記樹脂成形品用補強シートを前記樹脂成形品に貼着することを特徴とする、請求項14に記載の樹脂成形品の補強方法。
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- 2011-03-15 WO PCT/JP2011/056116 patent/WO2011115140A1/ja active Application Filing
- 2011-03-15 US US13/635,878 patent/US20130011667A1/en not_active Abandoned
- 2011-03-15 EP EP11756324.7A patent/EP2548737B1/en active Active
- 2011-03-15 CN CN2011800142280A patent/CN102811859A/zh active Pending
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WO2015008735A1 (ja) * | 2013-07-16 | 2015-01-22 | 三菱樹脂株式会社 | 成形体の製造方法、および成形体 |
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US20130011667A1 (en) | 2013-01-10 |
US9114599B2 (en) | 2015-08-25 |
CN102811859A (zh) | 2012-12-05 |
EP2548737A1 (en) | 2013-01-23 |
US20140116619A1 (en) | 2014-05-01 |
KR20130006450A (ko) | 2013-01-16 |
WO2011115140A1 (ja) | 2011-09-22 |
JP5694009B2 (ja) | 2015-04-01 |
EP2548737B1 (en) | 2020-01-08 |
EP2548737A4 (en) | 2014-05-14 |
US20140120343A1 (en) | 2014-05-01 |
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