Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
LAMINATE, MANUFACTURING METHOD OF LAMINATE, CONSTRUCTION METHOD OF LAMINATE, AND EXFOLIATION PREVENTION METHOD OF CONCRETE PIECE
To provide a laminate excellent in adhesion of a fiber sheet in the laminate, and having excellent adhesiveness to a concrete structure even when overlapped and adhered.SOLUTION: There is provided a laminate by laminating at least an A layer, a B layer, a C layer and a D layer in this order. The A layer contains a resin component A containing 50 mass% or more of a polyvinylidene fluoride resin. The B layer contains a resin component B containing 50 mass% or more of a poly(meth)acrylic acid ester resin. The C layer consists of an acrylic adhesive composition, storage elastic modulus of an adhesive composition (G') obtained in a viscoelasticity measurement under a condition of temperature of 25°C and frequency of 1.0 Hz is 5.0×10to 1.0×10Pa, loss tangent of the adhesive composition (tanδ) obtained in the viscoelasticity measurement under a condition of temperature of 100°C and frequency of 1.0 Hz is 0.8 or less. The D layer consists of a fiber sheet, and coating area ratio of the C layer to the B layer is 10 to 90%.SELECTED DRAWING: Figure 1
【課題】積層体における繊維シートの密着性に優れると共に、重ね貼りされた場合にも、コンクリート構造物に対する優れた付着性を有する積層体の提供。【解決手段】少なくとも、Ａ層、Ｂ層、Ｃ層及びＤ層がこの順に積層された積層体であって、Ａ層が、ポリフッ化ビニリデン系樹脂を５０質量％以上含む樹脂成分Ａを含有し、Ｂ層が、ポリ（メタ）アクリル酸エステル系樹脂を５０質量％以上含む樹脂成分Ｂを含有し、Ｃ層が、アクリル系粘着剤組成物からなり、温度２５℃、周波数１．０Ｈｚの条件における粘弾性測定で得られる粘着剤組成物の貯蔵弾性率（Ｇ’）が５．０×１０３〜１．０×１０６Ｐａであり、温度１００℃、周波数１．０Ｈｚの条件における粘弾性測定で得られる粘着剤組成物の損失正接（ｔａｎδ）が０．８以下であり、Ｄ層が繊維シートからなり、Ｂ層に対するＣ層の被覆面積率が１０〜９０％である、積層体。【選択図】図１
LAMINATE, MANUFACTURING METHOD OF LAMINATE, CONSTRUCTION METHOD OF LAMINATE, AND EXFOLIATION PREVENTION METHOD OF CONCRETE PIECE
To provide a laminate excellent in adhesion of a fiber sheet in the laminate, and having excellent adhesiveness to a concrete structure even when overlapped and adhered.SOLUTION: There is provided a laminate by laminating at least an A layer, a B layer, a C layer and a D layer in this order. The A layer contains a resin component A containing 50 mass% or more of a polyvinylidene fluoride resin. The B layer contains a resin component B containing 50 mass% or more of a poly(meth)acrylic acid ester resin. The C layer consists of an acrylic adhesive composition, storage elastic modulus of an adhesive composition (G') obtained in a viscoelasticity measurement under a condition of temperature of 25°C and frequency of 1.0 Hz is 5.0×10to 1.0×10Pa, loss tangent of the adhesive composition (tanδ) obtained in the viscoelasticity measurement under a condition of temperature of 100°C and frequency of 1.0 Hz is 0.8 or less. The D layer consists of a fiber sheet, and coating area ratio of the C layer to the B layer is 10 to 90%.SELECTED DRAWING: Figure 1
【課題】積層体における繊維シートの密着性に優れると共に、重ね貼りされた場合にも、コンクリート構造物に対する優れた付着性を有する積層体の提供。【解決手段】少なくとも、Ａ層、Ｂ層、Ｃ層及びＤ層がこの順に積層された積層体であって、Ａ層が、ポリフッ化ビニリデン系樹脂を５０質量％以上含む樹脂成分Ａを含有し、Ｂ層が、ポリ（メタ）アクリル酸エステル系樹脂を５０質量％以上含む樹脂成分Ｂを含有し、Ｃ層が、アクリル系粘着剤組成物からなり、温度２５℃、周波数１．０Ｈｚの条件における粘弾性測定で得られる粘着剤組成物の貯蔵弾性率（Ｇ’）が５．０×１０３〜１．０×１０６Ｐａであり、温度１００℃、周波数１．０Ｈｚの条件における粘弾性測定で得られる粘着剤組成物の損失正接（ｔａｎδ）が０．８以下であり、Ｄ層が繊維シートからなり、Ｂ層に対するＣ層の被覆面積率が１０〜９０％である、積層体。【選択図】図１
LAMINATE, MANUFACTURING METHOD OF LAMINATE, CONSTRUCTION METHOD OF LAMINATE, AND EXFOLIATION PREVENTION METHOD OF CONCRETE PIECE
積層体、積層体の製造方法、積層体の施工方法及びコンクリート片のはく落防止工法
OISHI MASAYUKI (Autor:in) / YAMASHITA TOSHIHIRO (Autor:in) / TAKANO TAKASHI (Autor:in)
24.10.2019
Patent
Elektronische Ressource
Japanisch
MESH SHEET LAMINATE AND CONCRETE EXFOLIATION PREVENTION MATERIAL
| Europäisches Patentamt | 2019