常用中空玻璃MS密封胶的性能对比

发布时间 : 2024-10-31 16:53:32
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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.

常用中空玻璃MS密封胶的性能对比

(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 : 2024-10-31 16:53:32
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中空玻璃的MS密封胶密封结构目前市场上中空玻璃的密封主要有胶条法和胶接法两种。胶条法的主体材料是丁基防水嵌缝胶或聚异丁烯胶。在加热。加压条件下，胶条在玻璃上形成的是非化学粘结表层，而丁基防水嵌缝胶或聚异丁烯胶遇热易蠕变。遇冷则变硬，所以导致胶条结构中空玻璃耐温度交变性能差。耐候性能差。胶条法使用的胶条为塑性体而非弹性体，因此抗位移变形能力也很差。从实际使用效果来看，许多采用此法的生产企业都反映中空玻璃漏气。漏水现象严重。因此胶条结构的中空玻璃市场前景不太明朗。

胶接法密封结构主要有单道密封与双道密封。由于双道密封的中空玻璃耐久性和密封寿命较单道密封的要长，所以目前双道密封的中空玻璃占市场主导地位。几种常用胶中，丁基防水嵌缝胶的水蒸气渗透率最低，通常被用作第道密封，起隔离水汽。防止密封的内层气体泄漏的作用;第道MS密封胶常用聚硫胶。聚氨酯密封胶或硅酮胶，主要是将玻璃和间隔条粘结成整体，起弹性恢复。缓冲边部应力的作用，并能防止气体泄漏和水汽渗透。

对于建筑门窗用中空玻璃应选择丁基聚硫体系(丁基防水嵌缝胶作内层密封。聚硫胶作外层密却或是环保型的丁基防水嵌缝胶。

常用于中空玻璃的MS密封胶有聚硫胶。丁基防水嵌缝胶。聚氨酯密封胶和硅酮胶。聚硫胶是中空玻璃行业中最早使用的外层MS密封胶;聚氨酯密封胶因性能优良且环保性好，年后，逐渐取代聚硫胶占据了市场主导地位。表是常用MS密封胶的性能比较。耐候性MS密封胶的抗老化性能在很大程度上决定了中空玻璃的使用寿命。常用的MS密封胶中，硅酮胶有非常好的耐候性，适用温度范围宽，使用寿命长;聚硫胶能在d4818温度范围内保持其特性;而聚氨酯密封胶表面易劣化，但经配方改良后，使用寿命可达1V4 CB。http://www.sdyuantai.com/

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