各类聚氨酯密封胶的性能各有优劣

发布时间 : 2024-2-1 19:36:24
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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.

各类聚氨酯密封胶的性能各有优劣

(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 : 2024-2-1 19:36:24
Views:

从表1可以看出，各类聚氨酯密封胶的性能各有优劣。想要用一种聚氨酯密封胶制作完美的中空玻璃，几乎不可能。在这种情况下，双道密封工艺在上世纪70年代被采用，同时，聚氨酯密封胶的使用使得中空玻璃的生产从手工制作转为自动化生产成为可能。聚氨酯密封胶加二道胶的组合方式成为建筑用中空玻璃近乎完美的密封方案。

现行JC/T 914-2014《中空玻璃用聚氨酯密封胶》，结合生产使用情况及中空玻璃制品性能要求，对产品的密度、针人度、剪切强度、水汽透过率和热失重做出要求。

(1)密度，表征产品的稳定性。

(2)针人度，表征产品的热熔性能和流变性能。

(3)剪切强度，表征产品与基材的粘接强度。

(4)水汽透过率，表征产品的气密性能，是保证中空玻璃产品质量和寿命的重要技术指标之.。

(5)热失重，表征产品成分热稳定性，对中空玻璃的紫外发雾性的检测至关重要。http://www.sdyuantai.com/

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