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A platform for research: civil engineering, architecture and urbanism
The surface modification of extruded polystyrene foams through UV curing and its stable adhesion to mortar
https://orcid.org/0000-0001-7899-3864
Graphical abstract Display Omitted
Highlights The construction of reactive hydrophilic XPSF surface by the surface curing of UV curable adhesives. The fabrication of chemical bonded XPSF/mortar interfaces. The thorough investigation of the reactions between cured UV adhesive coating and XPSF surface.
Abstract The hydrophobic surface of extruded polystyrene foams (XPSF) was modified by UV curable adhesives to enhance the interfacial bonding strength (BS) with mortar. The UV adhesive contained epoxy acrylate resin, acrylic acid and butyl acrylate (denoted as EAB). After EAB modification, the BS value in dry state (BS-D) increased from 0.050 MPa of unmodified XPSF with mortar to 0.210 MPa. Then, 3-aminopropyltriethoxysilane (APTES) was further introduced into EAB to form the water-resistant coatings (denoted as EABT) to enhance the BS value in wet state (BS-W). By optimizing the composition, the maximum BS-D and BS-W of 0.216 and 0.158 MPa in 7-day curing were obtained. The bonding mechanism illustrated that the modified XPSF was chemically bonded with mortar.
The surface modification of extruded polystyrene foams through UV curing and its stable adhesion to mortar
https://orcid.org/0000-0001-7899-3864
Graphical abstract Display Omitted
Highlights The construction of reactive hydrophilic XPSF surface by the surface curing of UV curable adhesives. The fabrication of chemical bonded XPSF/mortar interfaces. The thorough investigation of the reactions between cured UV adhesive coating and XPSF surface.
Abstract The hydrophobic surface of extruded polystyrene foams (XPSF) was modified by UV curable adhesives to enhance the interfacial bonding strength (BS) with mortar. The UV adhesive contained epoxy acrylate resin, acrylic acid and butyl acrylate (denoted as EAB). After EAB modification, the BS value in dry state (BS-D) increased from 0.050 MPa of unmodified XPSF with mortar to 0.210 MPa. Then, 3-aminopropyltriethoxysilane (APTES) was further introduced into EAB to form the water-resistant coatings (denoted as EABT) to enhance the BS value in wet state (BS-W). By optimizing the composition, the maximum BS-D and BS-W of 0.216 and 0.158 MPa in 7-day curing were obtained. The bonding mechanism illustrated that the modified XPSF was chemically bonded with mortar.
The surface modification of extruded polystyrene foams through UV curing and its stable adhesion to mortar
https://orcid.org/0000-0001-7899-3864
Graphical abstract Display Omitted
Highlights The construction of reactive hydrophilic XPSF surface by the surface curing of UV curable adhesives. The fabrication of chemical bonded XPSF/mortar interfaces. The thorough investigation of the reactions between cured UV adhesive coating and XPSF surface.
Abstract The hydrophobic surface of extruded polystyrene foams (XPSF) was modified by UV curable adhesives to enhance the interfacial bonding strength (BS) with mortar. The UV adhesive contained epoxy acrylate resin, acrylic acid and butyl acrylate (denoted as EAB). After EAB modification, the BS value in dry state (BS-D) increased from 0.050 MPa of unmodified XPSF with mortar to 0.210 MPa. Then, 3-aminopropyltriethoxysilane (APTES) was further introduced into EAB to form the water-resistant coatings (denoted as EABT) to enhance the BS value in wet state (BS-W). By optimizing the composition, the maximum BS-D and BS-W of 0.216 and 0.158 MPa in 7-day curing were obtained. The bonding mechanism illustrated that the modified XPSF was chemically bonded with mortar.
The surface modification of extruded polystyrene foams through UV curing and its stable adhesion to mortar
Wang, Wanfu (author) / Sun, Shibing (author) / Zhao, Xinxin (author) / Cui, Suping (author) / Wang, Junchao (author) / Shi, Yan (author) / Sun, Dawei (author) / Liu, Hui (author) / Jin, Xiaodong (author)
2022-10-16
Article (Journal)
Electronic Resource
English
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