A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for improving tensile bonding strength of extruded polystyrene board and mortar
The invention discloses a method for improving the tensile bonding strength of an extruded polystyrene board (XPS) and mortar, a UV curing film layer is arranged between the XPS and the mortar, and the method comprises the following steps: (1) uniformly coating the surface of the XPS with a solution capable of UV polymerization; (2) carrying out ultraviolet curing on the XPS surface coated with the solution capable of being subjected to UV polymerization; and (3) after curing is completed, coating the modified surface of the XPS with freshly mixed adhesive mortar, curing for 28 days under a standard condition, and then carrying out a tensile adhesive strength test. The solution capable of UV polymerization comprises the following components in parts by weight: 100 parts of oligomer, 10-50 parts of functional monomer, 10-50 parts of soft monomer, 0.5-3 parts of photoinitiator and 1-5 parts of silicon dioxide particles. The curing coating containing silicon dioxide is formed on the surface of the XPS in a UV polymerization mode, the wettability of the XPS and mortar is improved through active functional groups in the coating, and therefore the tensile bonding strength of the XPS and the mortar is improved. According to the invention, the interface-agent-free use of the XPS outer wall external thermal insulation system construction site is realized.
本发明公开了一种用于提高挤塑聚苯板(XPS)与砂浆拉伸粘结强度的方法，在XPS与砂浆之间设置UV固化膜层，包括如下步骤：(1)将可UV聚合的溶液均匀涂布在XPS表面；(2)对涂布可UV聚合的溶液的XPS表面进行紫外光固化；(3)固化完成后，将新拌粘结砂浆涂抹于XPS的改性表面，在标准条件下养护28天后进行拉伸粘结强度测试。可UV聚合的溶液，按重量份计，包含：100份低聚物，10～50份功能单体，10～50份软单体，0.5～3份光引发剂，1～5份二氧化硅颗粒。本发明通过UV聚合的方式，在XPS表面形成一层含二氧化硅的固化涂层，利用涂层中的活性官能团，改善了XPS与砂浆的润湿性，从而提高二者的拉伸粘结强度。本发明实现了XPS外墙外保温系统施工现场的无界面剂使用。
Method for improving tensile bonding strength of extruded polystyrene board and mortar
The invention discloses a method for improving the tensile bonding strength of an extruded polystyrene board (XPS) and mortar, a UV curing film layer is arranged between the XPS and the mortar, and the method comprises the following steps: (1) uniformly coating the surface of the XPS with a solution capable of UV polymerization; (2) carrying out ultraviolet curing on the XPS surface coated with the solution capable of being subjected to UV polymerization; and (3) after curing is completed, coating the modified surface of the XPS with freshly mixed adhesive mortar, curing for 28 days under a standard condition, and then carrying out a tensile adhesive strength test. The solution capable of UV polymerization comprises the following components in parts by weight: 100 parts of oligomer, 10-50 parts of functional monomer, 10-50 parts of soft monomer, 0.5-3 parts of photoinitiator and 1-5 parts of silicon dioxide particles. The curing coating containing silicon dioxide is formed on the surface of the XPS in a UV polymerization mode, the wettability of the XPS and mortar is improved through active functional groups in the coating, and therefore the tensile bonding strength of the XPS and the mortar is improved. According to the invention, the interface-agent-free use of the XPS outer wall external thermal insulation system construction site is realized.
本发明公开了一种用于提高挤塑聚苯板(XPS)与砂浆拉伸粘结强度的方法，在XPS与砂浆之间设置UV固化膜层，包括如下步骤：(1)将可UV聚合的溶液均匀涂布在XPS表面；(2)对涂布可UV聚合的溶液的XPS表面进行紫外光固化；(3)固化完成后，将新拌粘结砂浆涂抹于XPS的改性表面，在标准条件下养护28天后进行拉伸粘结强度测试。可UV聚合的溶液，按重量份计，包含：100份低聚物，10～50份功能单体，10～50份软单体，0.5～3份光引发剂，1～5份二氧化硅颗粒。本发明通过UV聚合的方式，在XPS表面形成一层含二氧化硅的固化涂层，利用涂层中的活性官能团，改善了XPS与砂浆的润湿性，从而提高二者的拉伸粘结强度。本发明实现了XPS外墙外保温系统施工现场的无界面剂使用。
Method for improving tensile bonding strength of extruded polystyrene board and mortar
一种用于提高挤塑聚苯板与砂浆拉伸粘结强度的方法
JIN XIAODONG (author) / WANG JUNCHAO (author) / SUN SHIBING (author) / WANG WANFU (author) / SHI YAN (author)
2023-04-28
Patent
Electronic Resource
Chinese
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