電連接器用丁基防水嵌縫膠

發布時間 : 2024-8-11 10:32:13
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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.

電連接器用丁基防水嵌縫膠

(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.

發布時間 : 2024-8-11 10:32:13
Views:

丁基防水嵌縫膠中含有大量的醚基、氨基甲酸醋和脈基基團，在溫度和濕度應力的綜合作用下，電連接器用丁基防水嵌縫膠會發生氧化和水解反應o:3-zo，主要表現為醚基與空氣中氧氣的氧化反應以及氨基甲酸醋和脈基與空氣中水分的水解反應，導致聚氨酷膠中醚基、氨基甲酸酷和脈基基團化學鍵斷裂，造成丁基防水嵌縫膠致密度下降和邊界吸附能力降低，從而導致電連接器用丁基防水嵌縫膠發生內聚破壞和邊界破壞造成密封性能的下降。

在貯存環境下，電連接器用丁基防水嵌縫膠受到溫度和濕度的共同作用而發生氧化和水解并且兩個反應過程相互促進。溫度升高不僅加快氧化速率，還使得水解反應分子的活性增強，從而促進水解反應過程的進行;濕度提高，水解反應速率加快，更易引起致密度下降，導致內部孔隙產生，使得氧氣更容易接觸到聚氨醋膠內部，促進氧化反應的進行。

隨著時間的推移，在氧化和水解反應的共同作用下，丁基防水嵌縫膠的致密度和分子吸附能力逐漸下降，內聚破壞和邊界破壞的程度逐漸加劇，加速了丁基防水嵌縫膠的老化過程，導致丁基防水嵌縫膠的密封性能越來越差。http://www.qiquanonline.com/

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