硅酮耐候密封膠硅酮耐候密封膠的主要技術(shù)指標中，表征施工性能的有下垂度、擠出性、表干時間，表征固化后耐候膠性能的主要是位移能力和質(zhì)量損失率。耐候膠的質(zhì)量損失率與結(jié)構(gòu)膠的熱失重相當，主要考察耐候膠在長期使用后的性能變化情況，質(zhì)量損失率越高，長期使用后性能下降越嚴重。硅酮耐候密封膠的主要作用是對板塊間接縫的密封，由于板塊經(jīng)常會受到溫度變化、主體結(jié)構(gòu)變形等影響而發(fā)生位移，導致接縫寬度也就會隨之發(fā)生變化。這就要求耐候膠具有良好的承受接縫位移的能力，在長期承受接縫寬度變化的情況下不發(fā)生開裂，這一性能稱為耐候膠的位移能力，與結(jié)構(gòu)膠的“變位承受能力”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
硅酮結(jié)構(gòu)密封膠硅酮結(jié)構(gòu)密封膠一種單組份、中性固化、專為建筑幕墻中的玻璃結(jié)構(gòu)粘結(jié)裝配而設(shè)計的?？稍诤軐挼臍鉁貤l件下輕易地擠出使用。依靠空氣中的水分固化成、耐用的高模量、高彈性的硅酮橡膠。產(chǎn)品對玻璃不需用底涂，能產(chǎn)生的粘結(jié)性。結(jié)構(gòu)膠指強度高（壓縮強度>65MPa，鋼-鋼正拉粘接強度>30MPa，抗剪強度>18MPa），能承受較大荷載，且耐老化、耐疲勞、耐腐蝕，在預期壽命內(nèi)性能穩(wěn)定，適用于承受強力的結(jié)構(gòu)件粘接。非結(jié)構(gòu)膠強度較低、耐久性差，只能由于普通、臨時性質(zhì)的粘接、密封、固定，不能用于結(jié)構(gòu)件粘接。建筑工程使用年限一般在50年以上，構(gòu)件承受較大復雜應力，直接關(guān)系人員的生命、財產(chǎn)安全，粘接膠種應采用結(jié)構(gòu)膠。結(jié)構(gòu)膠在工程中結(jié)構(gòu)膠應用廣泛，主要用于構(gòu)件的加固、錨固、粘接、修補等；如粘鋼，粘碳纖維，植筋，裂縫補強、密封，孔洞修補、道釘粘貼、表面防護、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

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