硅烷改性聚氨酯密封胶结构粘接装配接缝设计

发布时间 : 2022-11-28 18:01:09
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(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

硅烷改性聚氨酯密封胶结构粘接装配接缝设计

(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

发布时间 : 2022-11-28 18:01:09
Views:

建幕筑墙接缝采用结构粘结装配系统(SSG)的密封接缝，应用硅烷改性聚氨酯密封胶，不仅具有密封功能阻止空气和水通过建筑外墙，而且具有结构粘结功能，提供结构的联结固定，承载并传递应力和位移。

JGJ 102-2003《玻璃幕墙工程技术规范》5.6.2明确硅烷改性聚氨酯密封胶粘接胶缝尺寸设定和密封胶选材，“应根据不同的受力情况进行承载力极限状态验算”，要求“在风荷载、水平地震或永久荷载作用下硅烷改性聚氨酯密封胶(承受的)拉应力或剪应力设计值不应大于其强度设计值。”设计验算涉及的因素应包括结构的承载力极限、设计系数、制造误差、涉及风荷载引起的主应力，涉及地震、热、沉降等诱因位移及胶缝产生的次应力等，粘接节点的尺寸和硅烷改性聚氨酯密封胶的模量的选择必须保证粘结结构体系的安全应力水平。

玻璃幕墙用硅烷改性聚氨酯密封胶的宽度、厚度尺寸应通过计算确定，硅烷改性聚氨酯密封胶厚度不宜小于6mm且不宜大于12mm，其宽度不宜小于7mm且不大于厚度的两倍。硅烷改性聚氨酯密封胶、硅酮密封胶同相粘接的幕墙基材、饰面板、附件和其他材料应具有相容性，随批单元件切割粘结性达到合格要求。

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