CB型天然中埋橡胶止水带

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CB型天然中埋橡胶止水带

硅酮耐候密封胶硅酮耐候密封胶的主要技术指标中，表征施工性能的有下垂度、挤出性、表干时间，表征固化后耐候胶性能的主要是位移能力和质量损失率。耐候胶的质量损失率与结构胶的热失重相当，主要考察耐候胶在长期使用后的性能变化情况，质量损失率越高，长期使用后性能下降越严重。硅酮耐候密封胶的主要作用是对板块间接缝的密封，由于板块经常会受到温度变化、主体结构变形等影响而发生位移，导致接缝宽度也就会随之发生变化。这就要求耐候胶具有良好的承受接缝位移的能力，在长期承受接缝宽度变化的情况下不发生开裂，这一性能称为耐候胶的位移能力，与结构胶的“变位承受能力”不同。
The main technical indicators of silicone weatherproof sealant, silicone weatherproof sealant, are characterized by sag, extrusion and drying time. The main characteristics of the silicone rubber weatherproof sealant are displacement capacity and mass loss rate. The quality loss rate of weather resistant gum is similar to that of structural adhesive. The performance change of weathering gum after long term use is mainly investigated. The higher the mass loss rate is, the more serious the performance degradation is after l
硅酮结构密封胶硅酮结构密封胶一种单组份、中性固化、专为建筑幕墙中的玻璃结构粘结装配而设计的。可在很宽的气温条件下轻易地挤出使用。依靠空气中的水分固化成、的高模量、高弹性的硅酮橡胶。产品对玻璃不需用底涂，能产生的粘结性。结构胶指强度高（压缩强度>65MPa，钢-钢正拉粘接强度>30MPa，抗剪强度>18MPa），能承受较大荷载，且耐老化、耐疲劳、耐腐蚀，在预期寿命内性能稳定，适用于承受强力的结构件粘接。非结构胶强度较低、耐久性差，只能由于普通、临时性质的粘接、密封、固定，不能用于结构件粘接。建筑工程使用年限一般在50年以上，构件承受较大复杂应力，直接关系人员的生命、财产安全，粘接胶种应采用结构胶。结构胶在工程中结构胶应用广泛，主要用于构件的加固、锚固、粘接、修补等；如粘钢，粘碳纤维，植筋，裂缝补强、密封，孔洞修补、道钉粘贴、表面防护、混凝土粘接等。
Structural silicone sealant structural silicone sealant for one component, neutral curing, designed for bonding glass structure assembly in building curtain wall design. It can be easily extruded in a very wide temperature condition. It relies on the moisture in the air to solidify into excellent, durable high modulus, high elastic silicone rubber. The product does not use bottom coating on glass, and can produce superior bond. The structural adhesive finger has high strength (compressive strength >65MPa, steel steel tensile bonding strength >30MPa, shear strength >18MPa). It can withstand large loads, and is resistant to aging, fatigue and corrosion. It has stable performance in the expected life and is suitable for bonding with strong structural parts. The strength of the non structural adhesive is low and the durability is poor. It can only be bonded, sealed and fixed because of ordinary and temporary properties. It can not be used for the bonding of