丁基防水嵌缝密封胶对于多种基材都具有良好的粘结性

发布时间 : 2024-6-22 18:18:07
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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.

丁基防水嵌缝密封胶对于多种基材都具有良好的粘结性

(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 : 2024-6-22 18:18:07
Views:

用于封堵的丁基防水嵌缝密封胶，在满足要求的同时还必须与多种基材有良好的粘结性，包括混凝土、玻璃、石材、铝合金、钢板等。

众所周知，火灾中防止有毒烟气在楼层间的传播比阻隔火焰更加重要。而一些传统的封堵材料如泥等，在安装2、3年后，可能出现整体硬化、与基材粘结不好的情况，造成的孔洞将会为火焰及烟气的传播提供通道(图2)。

与泥类产品同基材之间的物理附着不同，硅酮丁基防水嵌缝密封胶产品与基材产生的是更加牢固可靠的化学粘结。实验室测试表明，硅酮类丁基防水嵌缝密封胶产品的粘结强度可以超过0.6 MPa。硅宝公司的此类产品已在“鸟巢”、三峡水利等工程(用于封堵电缆贯穿留下的孔洞)得到成功应用，证明了硅酮类丁基防水嵌缝密封胶对于多种基材都具有良好的粘结性。

拥有良好的位移能力，能够应对一定的接缝尺寸变化是丁基防水嵌缝密封胶必须具备的另一特性。实际上，任何形式的缝隙都存在一定的位移，如果用完全刚性的传统材料(如水泥砂浆)封堵金属管道等，其与所穿越基材的热膨胀系数的显著差异以及风管的震动等因素，都可能导致裂缝的产生而令封堵失效(图3)。http://www.sdyuantai.com/

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