JP2021080310A - 弾性舗装材の製造方法 - Google Patents
弾性舗装材の製造方法 Download PDFInfo
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- JP2021080310A JP2021080310A JP2019205900A JP2019205900A JP2021080310A JP 2021080310 A JP2021080310 A JP 2021080310A JP 2019205900 A JP2019205900 A JP 2019205900A JP 2019205900 A JP2019205900 A JP 2019205900A JP 2021080310 A JP2021080310 A JP 2021080310A
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Abstract
Description
調製例1〜7(前処理剤(PT−1〜PT−7))
表1に示す通り、ジェファーミンD−400(平均分子量400のポリオキシプロピレンジアミン、ハンツマン社製)、D−700(平均分子量700のポリオキシプロピレンジアミン、ハンツマン社製)、D−2000(平均分子量2000のポリオキシプロピレンジアミン、ハンツマン社製)、ヘキサメチレンジアミン(東京化成工業社製)、または、ロンザキュアDETDA80(2,4体と2,6体の比率が80/20のジエチルトルエンジアミン、ロンザジャパン社製)に、ポリオキシプロピレングリコール(PPG、アクトコールD−2000、平均分子量2000、三井化学SKCポリウレタン製)またはDINP(可塑剤、フタル酸ジイソノニル、新日本理化社製)を混合した。これにより、前処理剤を得た。
準備例1(TDI系プレポリマー(P−1))
ポリオキシプロピレングリコール(PPG、アクトコールD−1000、平均分子量1000、三井化学SKCポリウレタン製)742質量部と、トルエンジイソシアネート(T−80/20、コスモネートT−80、2,4−異性体と2,6−異性体の割合が80/20のTDI、三井化学SKCポリウレタン製)258質量部とを、セパラブルフラスコに仕込み、90℃で3時間反応させた。
製造例1(バインダー(B−1))
表2に示す通り、TDI系プレポリマー(P−1)85質量部に対して、m−キシリレンジイソシアネート(XDI単量体、タケネート500、三井化学製)15質量部を添加し、バインダー(B−1)を得た。
表2に示す通り、TDI系プレポリマー(P−1)85質量部に対して、ジフェニルメタンジイソシアネートのカルボジイミド変性体(MDI誘導体、コスモネートLK、三井化学SKCポリウレタン製)15質量部を添加し、バインダー(B−2)を得た。
表2に示す通り、TDI系プレポリマー(P−1)100質量部を、バインダー(B−3)とした。
実施例1〜10および比較例1〜4
表3〜表5に示す処方で、骨材としての赤色カラーゴムチップ(粒径約3mm、東洋ゴムチップ社製)に対し、前処理剤を加え、3分間予備撹拌して十分に混合した(第1混合工程)。その後、得られた第1組成物に、バインダーを添加し、さらに3分間、十分に混合した(第2混合工程)。これにより、第2組成物を得た。
(1)作業性
弾性舗装材の製造において、第2組成物の施工時の作業性が良好であったものを○とした。また、第2組成物の粘度が過度に高く、および/または、ゴムチップの鏝への付着が多く、作業性が不良であったものを×とした。そして、それらの中間を△とした。
各実施例および各比較例のゴムマットを、23℃、相対湿度50%の条件下で、1週間養生した。
ジェファーミンD−400:平均分子量400のポリオキシプロピレンジアミン、ハンツマン社製
ジェファーミンD−700:平均分子量700のポリオキシプロピレンジアミン、ハンツマン社製
ジェファーミンD−2000:平均分子量2000のポリオキシプロピレンジアミン、ハンツマン社製
ヘキサメチレンジアミン:東京化成工業社製
ロンザキュアDETDA80:2,4体と2,6体の比率が80/20のジエチルトルエンジアミン、ロンザジャパン社製
PPG:ポリオキシプロピレングリコール、アクトコールD−2000、平均分子量2000、三井化学SKCポリウレタン製
DINP:可塑剤、フタル酸ジイソノニル、新日本理化社製
TDI系プレポリマー:準備例1で得られたTDI系プレポリマー
XDI単量体:m−キシリレンジイソシアネート、タケネート500、三井化学製
MDI誘導体:ジフェニルメタンジイソシアネートのカルボジイミド変性体、コスモネートLK、三井化学SKCポリウレタン製
Claims (4)
- ポリエーテルアミンを含む前処理剤と、骨材とを第1混合し、第1組成物を調製する第1混合工程、
前記第1組成物と、イソシアネート基末端ウレタンプレポリマーを含むバインダーとを第2混合し、第2組成物を調製する第2混合工程、および、
前記第2組成物を施工し、弾性舗装材を形成する施工工程
を備えることを特徴とする、弾性舗装材の製造方法。 - 前記ポリエーテルアミンの数平均分子量が500以上である
ことを特徴とする、請求項1に記載の弾性舗装材の製造方法。 - 前記バインダー中のイソシアネート基に対する、前処理剤中のアミノ基の割合が、1当量%以上30当量%以下である
ことを特徴とする、請求項1または2に記載の弾性舗装材の製造方法。 - 前記バインダーが、さらに、キシリレンジイソシアネートの単量体を含有する
ことを特徴とする、請求項1〜3のいずれか一項に記載の弾性舗装材の製造方法。
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CN116063652A (zh) * | 2023-01-10 | 2023-05-05 | 广东爱上新材料股份有限公司 | 一种用于运动场地铺装的发泡聚氨酯卷材及其制备方法 |
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CN114349932A (zh) * | 2022-01-17 | 2022-04-15 | 亚士创能科技(上海)股份有限公司 | 可用于颜料包覆的聚合物、聚合物包覆颜料及其制备方法和无机涂料 |
CN114349932B (zh) * | 2022-01-17 | 2024-05-31 | 亚士创能科技(上海)股份有限公司 | 可用于颜料包覆的聚合物、聚合物包覆颜料及其制备方法和无机涂料 |
CN116063652A (zh) * | 2023-01-10 | 2023-05-05 | 广东爱上新材料股份有限公司 | 一种用于运动场地铺装的发泡聚氨酯卷材及其制备方法 |
CN116063652B (zh) * | 2023-01-10 | 2023-08-11 | 广东爱上新材料股份有限公司 | 一种用于运动场地铺装的发泡聚氨酯卷材及其制备方法 |
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