JP2021024898A - 2成分型硬化吹付材 - Google Patents
2成分型硬化吹付材 Download PDFInfo
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- JP2021024898A JP2021024898A JP2019141632A JP2019141632A JP2021024898A JP 2021024898 A JP2021024898 A JP 2021024898A JP 2019141632 A JP2019141632 A JP 2019141632A JP 2019141632 A JP2019141632 A JP 2019141632A JP 2021024898 A JP2021024898 A JP 2021024898A
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- Prior art keywords
- carboxylic acid
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- 239000000463 material Substances 0.000 title claims abstract description 68
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- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 64
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- 150000003839 salts Chemical class 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
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- 229910052797 bismuth Inorganic materials 0.000 claims description 10
- 150000001734 carboxylic acid salts Chemical class 0.000 claims description 5
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- 238000006243 chemical reaction Methods 0.000 description 26
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Abstract
Description
本発明の2成分型硬化吹付材は、主剤と硬化剤とを備える。
2.主剤
主剤は、所定割合のキシリレンジイソシアネートの単量体を含む。
2.1.第1方法
第1方法では、キシリレンジイソシアネートの単量体が有するイソシアネート基が、マクロポリオール(後述)が有する水酸基に対して、モル基準で多くなるように、キシリレンジイソシアネートの単量体と、マクロポリオール(後述)とを反応させることにより、第1イソシアネート基末端プレポリマーを調製することにより、主剤(第1主剤)を調製する。
2.2.第2方法
第2方法では、他のイソシアネートと、マクロポリオールとを反応させることにより、第2イソシアネート基末端プレポリマーを調製し、その後、第2イソシアネート基末端プレポリマーと、キシリレンジイソシアネートの単量体とを混合することにより、主剤(第2主剤)を調製する。
3.硬化剤
硬化剤は、ポリアミンと、触媒とを含む。
3.1.ポリアミン
ポリアミンとしては、例えば、芳香族ポリアミン、芳香脂肪族ポリアミン、脂環族ポリアミン、脂肪族ポリアミン、アミノアルコール、ポリオキシエチレン基含有ポリアミン、第1級アミノ基、または、第1級アミノ基および第2級アミノ基を有するアルコキシシリル化合物、ヒドラジンまたはその誘導体などのアミノ基含有化合物が挙げられる。
3.2.触媒
触媒は、遊離のカルボン酸を含むか、または、カルボン酸の金属酸塩および遊離のカルボン酸を含むか、好ましくは、遊離のカルボン酸からなるか、または、カルボン酸の金属酸塩および遊離のカルボン酸からなる。
3.3.硬化剤の調製
硬化剤を調製するには、ポリアミンと、触媒とを混合する。
4.2成分型硬化吹付材の使用方法
2成分型硬化吹付材の使用方法は、2成分型硬化吹付材を準備する第1工程と、2成分型硬化吹付材を、施工面にスプレー塗布する第2工程とを備える。
5.作用効果
この2成分型硬化吹付材は、主剤と硬化剤とを備える。
1.成分の詳細
各実施例および各比較例で用いた各成分を以下に記載する。
PPG D−2000:ポリオキシプロピレングリコール、数平均分子量2000、三井化学製
PPG D−700:ポリオキシプロピレングリコール、数平均分子量700、三井化学製
PPG D−400:ポリオキシプロピレングリコール、数平均分子量400、三井化学製
コスモネートT−80:2,4−異性体/2,6−異性対比80/20のトリレンジイソシアネート、三井化学社製
DETDA:ジエチルトルエンジアミン、エタキュア#100、アルベマール社製
ジェファーミンD−2000:ポリオキシエチレンエーテルジアミン、分子量2000、ハンツマン社製
ネオスタンU−600:オクチル酸ビスマス含量58%のオクチル酸ビスマス/オクチル酸混合物、日東化工社製
ニッカオクチックス鉛24%:オクチル酸鉛含量58%のオクチル酸鉛/ミネラルスピリット混合物、日本化学産業社製
2.2成分型硬化吹付材の調製
2.1.未反応のキシリレンジイソシアネートの単量体の濃度、または、未反応のトリレンジイソシアネートの単量体の濃度の測定
未反応のキシリレンジイソシアネートの単量体の濃度、または、未反応のトリレンジイソシアネートの単量体の濃度は、HPLC測定により求めた。
測定条件
装置:島津製作所社製高速液体クロマトグラフィーLC−20型
カラム:島津製作所Shim−Pack CLC−SIL (6mmID×15cm)
カラム温度:25℃
移動相:n−ヘキサン/ジクロロエタン/メタノール
XDIのリテンションタイム:6.1分
定量方法:検量線法
2.2.主剤の調製
調製例1(主剤1)
PPG D−2000 616.9g、PPG D−700 22.9g、キシリレンジイソシアネート360.1gを1Lのセパラブルフラスコに仕込み、当量比(NCO/OH)が5.6となるように、90℃で4時間反応させた。
PPG D−2000 849.7g、PPG D−400 8.6g、コスモネートT−80 141.8gを仕込み、当量比(NCO/OH)が1.8となるように、90℃で3時間反応させた。
上記のTDIプレポリマー 679.7gに対し、3−イソシアナトメチル−3,5,5−トリメチルシクロヘキシルイソシアネート(IPDI) 295.3g、可塑剤としてDINA(アジピン酸ジイソノニル)25.0gを加えた。
PPG D−2000 559.7g、PPG D−700 20.8g、IPDI 419.5g、反応触媒として、スタナスオクトエートを200ppm加え、当量比(NCO/OH)が6.1となるように、80℃で5時間反応させた。
PPG D−2000 587.1g、PPG D−700 21.8g、ビス(イソシアナトメチル)ノルボルナン(NBDI) 391.1g、反応触媒として、スタナスオクトエートを200ppmとなるように加え、当量比(NCO/OH)が5.9となるように、80℃で5時間反応させた。
2.3.硬化剤の調製
調製例6(硬化剤1)
DETDA 20.1g、ジェファーミンD−2000 79.9g、触媒として、ネオスタンU−600 2.0g、オクチル酸 2.0gを配合した。
配合処方を、表1の記載に従って変更した以外は、調製例6と同様に処理して、硬化剤2〜硬化剤5を調製した。
2.4.2成分型硬化吹付材の調製
実施例1〜実施例5、比較例1〜比較例4
上記したように、主剤と硬化剤とを別々に調製し、表1に従って、主剤と硬化剤とを組み合わせて、主剤と硬化剤とを備える2成分型硬化吹付材を調製した。
3.評価
(スプレー成形(スプレー条件))
各実施例および各比較例の2成分型硬化吹付材を用いて、スプレー成形を実施した。
(臭気性)
上記したスプレー条件に基づいて、2成分型硬化吹付材をスプレーした時の臭気性を評価した。
〇:臭気が気にならなかった。
×:臭気が気になった。
(ゲルタイム)
上記したスプレー条件に基づいて、各実施例および各比較例の2成分型硬化吹付材をスプレーした後、指触でゲルタイムを測定した。
(硬さ(ショアA))
上記したスプレー条件に基づいて、各実施例および各比較例の2成分型硬化吹付材をスプレーした後、1週間常温で養生し、硬化膜を得た。
(引張強度、引裂強度および破断時伸び)
上記したスプレー条件に基づいて、各実施例および各比較例の2成分型硬化吹付材をスプレーした後、1週間常温で養生し、硬化膜を得た。
(耐熱性)
上記したスプレー条件に基づいて、各実施例および各比較例の2成分型硬化吹付材をスプレーした後、1週間常温で養生し、硬化膜を得た。
〇:サンプルが融解しなかった。
△:サンプルの表面が融解した。
×:サンプルが融解した。
Claims (3)
- 主剤と硬化剤とを備え、
前記主剤は、キシリレンジイソシアネートの単量体を含み、
前記キシリレンジイソシアネートの単量体は、前記主剤に対して、5質量%以上であり、
前記硬化剤は、ポリアミンと、触媒とを含み、
前記触媒は、遊離のカルボン酸を含むか、または、カルボン酸の金属酸塩および遊離のカルボン酸を含み、
前記触媒が、前記カルボン酸の金属酸塩および前記遊離のカルボン酸を含む場合には、前記カルボン酸の金属酸塩よりも、前記遊離のカルボン酸が、質量基準で多いことを特徴とする、2成分型硬化吹付材。 - 前記カルボン酸の金属酸塩は、カルボン酸鉛塩、カルボン酸ビスマス塩、カルボン酸錫塩からなる群から1種が選択され、
前記遊離のカルボン酸の含有量は、前記触媒に対して、50質量%を超過することを特徴とする、請求項1に記載の2成分型硬化吹付材。 - 前記主剤は、ポリイソシアネートとマクロポリオールとの反応生成物であるイソシアネート基末端プレポリマーを含むことを特徴とする、請求項1または2に記載の2成分型硬化吹付材。
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JPH03160016A (ja) * | 1989-11-17 | 1991-07-10 | Mitsui Toatsu Chem Inc | スプレーによる速硬化ポリウレタン・ポリウレアエラストマーの製造方法 |
JPH05214294A (ja) * | 1992-02-05 | 1993-08-24 | Dai Ichi Kogyo Seiyaku Co Ltd | ウレタン塗膜の常温硬化用改質剤及びウレタン塗膜の 常温硬化方法 |
JPH09157590A (ja) * | 1995-12-01 | 1997-06-17 | Hodogaya Chem Co Ltd | ポリウレタン塗膜材の製造方法 |
JP2017043740A (ja) * | 2015-08-28 | 2017-03-02 | アイシーケイ株式会社 | 高強度2液型環境対応手塗り用ウレタン防水材組成物およびウレタン防水工法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH03160016A (ja) * | 1989-11-17 | 1991-07-10 | Mitsui Toatsu Chem Inc | スプレーによる速硬化ポリウレタン・ポリウレアエラストマーの製造方法 |
JPH05214294A (ja) * | 1992-02-05 | 1993-08-24 | Dai Ichi Kogyo Seiyaku Co Ltd | ウレタン塗膜の常温硬化用改質剤及びウレタン塗膜の 常温硬化方法 |
JPH09157590A (ja) * | 1995-12-01 | 1997-06-17 | Hodogaya Chem Co Ltd | ポリウレタン塗膜材の製造方法 |
JP2017043740A (ja) * | 2015-08-28 | 2017-03-02 | アイシーケイ株式会社 | 高強度2液型環境対応手塗り用ウレタン防水材組成物およびウレタン防水工法 |
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