硅酮结构密封胶可以承受一定的力,硅酮耐候胶主要用来防水密封。硅酮结构胶可以用来打副框,可以承受一定拉力与重力,硅酮耐候胶仅仅作为嵌缝用,不能够用来结构性密封。硅酮建筑密封胶是一种中性固化的高建筑用硅酮耐候密封胶。的耐气候老化性能,耐高低温性能-℃+1℃,良好的粘接力,它能在较广泛气候条件下挤出使用,并迅速与空气中的水份产生反应,固化成耐用、
Silicone structural sealant can withstand certain forces. Silicone weatherproof sealant is mainly used for waterproof sealant. Silicone structural adhesives can be used to make sub-frames, and can withstand certain tension and gravity. Silicone weatherproof adhesives can only be used as seams, but can not be used for structural seals. Silicone building sealant is a neutral curable high- building silicone weatherproof sealant. Excellent weather aging resistance, high and low temperature resistance - C + 1 C, good adhesion, it can be extruded under wider climatic conditions, and react with moisture in the air to solidify into durable.
高性能及具弹性的硅酮密封胶,能抗氧臭、紫外线及雨水等天然侵蚀。主要用途用于门窗及建筑装饰的填缝密封。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,
Silicone sealant with high performance and elasticity can resist natural erosion such as oxygen odor, ultraviolet ray and rainwater. Mainly used for seam sealing of doors and windows and architectural decoration. Among the main technical indicators of silicone weatherproof sealant, sag, extrusion and surface drying time are the main indicators of construction performance. Displacement ability and mass loss rate are the main indicators of cured weatherproof sealant performance. The mass loss rate of weatherproof adhesives is e to that of structural adhesives.
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 performance changes of weatherproof adhesives after long-term use were investigated. The higher the mass loss rate, the worse the performance decline after long-term use. The main function of silicone weatherproof sealant is to seal the indirect seams of the plate. Because the plate is often affected by temperature change and main structure deformation, the displacement will occur, which will lead to the change of the seam width. This requires that weatherproof adhesives have a good ability to withstand joint displacement and do not crack under the condition of long-term changes in joint width. This performance is called displacement capacity of weatherproof adhesives, which is different from the "displacement bearing capacity" of structural adhesives.
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优异、耐用的高模量、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
Silicone structural sealant is a one-component, neutral curing sealant specially designed for bonding and assembling glass structures in building curtain walls. It can be easily extruded under wide temperature conditions. Silicone rubber with excellent, durable, high modulus and high elasticity is cured by moisture in the air. The product does not need primer for glass, and can produce superior adhesion. Structural adhesives have high strength (compressive strength > 65 MPa, steel-steel bonding strength > 30 MPa, shear strength > 18 MPa), can withstand large loads, and aging resistance, fatigue resistance, corrosion resistance, stable performance in the expected life, and are suitable for structural components to withstand strong bonding. Non-structural adhesives have low strength and poor durability. They can only be bonded, sealed and fixed by common and temporary properties, and can not be used for bonding structural parts.