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                MS密封膠的水蒸氣透過率性能測試

                • 發布時間 : 2023-9-14 11:33:27
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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.

                MS密封膠的水蒸氣透過率性能測試

                (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 : 2023-9-14 11:33:27
                • Views:
                Information

                水蒸氣透過率

                       MS密封膠的水蒸氣滲透率過高,中空玻璃外圍的水蒸氣易透過MS密封膠滲人中空玻圖3弓單性恢復率測試裝置璃腔內,引起中空玻璃出霧,影響中空玻璃的使用壽命。高寒地區室內外溫差大,更容易在中空玻璃中形成霧氣,所以MS密封膠的水蒸氣透過率一定要低。

                       MS密封膠的水蒸氣透過率性能測試,參照GB/T 1037-1988《塑料薄膜和片材透水蒸氣性試驗方法杯式法》進行。

                低溫脆性

                       MS密封膠的低溫脆性反映了MS密封膠耐低溫性能的優劣,它是指在一定條件下,試樣受沖擊產生破壞時的最低溫度。這也是結合高寒地區MS密封膠使用的需求對MS密封膠特別要求的一項性能,一般要求低溫脆性溫度低于一50℃。

                       MS密封膠低溫脆性的測試,參照GB/T 1682-1994《硫化橡膠低溫脆性的測定單試樣法》進行,試驗裝置如圖4所示。

                MS密封膠的粘結性能

                       MS密封膠的粘結性能主要由冷拉一熱壓后粘結性、熱空氣一水循環后定伸粘結性、紫外線輻照一水浸后定伸粘結性來表示。

                冷拉一熱壓后粘結性

                       冷拉一熱壓后粘結性反映了MS密封膠經過不同溫度下反復冷卻拉伸一加熱壓縮后與基材的粘結性能。按GB/T 13477.13-2002《建筑密封材料試驗方法第13部分:冷拉一熱壓后粘結性的測定》規定的試驗方法,進行一50℃拉伸與70℃壓縮循環試驗,拉壓幅度為士20%。冷拉一熱壓后粘結性試驗的試塊如圖5所示。www.qiquanonline.com

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