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MS密封膠試件的最大剪切強度伸長率呈現上升趨勢
- 發布時間 : 2026-1-5 17:38:09
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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密封膠試件的最大剪切強度伸長率呈現上升趨勢
(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 : 2026-1-5 17:38:09
- Views:
Information
通過圖中的最大剪切強度伸長率數據分析，MS密封膠膠樣A的最大剪切強度伸長率隨著粘結厚度變小呈現上升趨勢，常規粘結厚度12mm的最大剪切強度伸長率達到303%，薄層粘結厚度2mm的試件最大剪切強度伸長率達到443%，薄層粘結厚度1 mm的試件最大剪切強度伸長率達到461 %。MS密封膠膠樣B的最大剪切強度伸長率隨著粘結厚度變小呈現上升趨勢，常規粘結厚度12mm的最大剪切強度伸長率達到405 %，薄層粘結厚度2mm的試件最大剪切強度伸長率達到687%，薄層粘結厚度1 mm的試件最大剪切強度伸長率達到716%。MS密封膠膠樣C的最大剪切強度伸長率隨著粘結厚度變小呈現上升趨勢，常規粘結厚度12mm的最大剪切強度伸長率達到226%，薄層粘結厚度2mm的試件最大剪切強度伸長率達到386%，薄層粘結厚度1 mm的試件最大剪切強度伸長率達到405%。隨著粘結厚度變小，3種MS密封膠試件的最大剪切強度伸長率呈現上升趨勢。證明MS密封膠在薄層粘結時的最大拉伸強度伸長率更大。
但是需要注意的是，剪切強度伸長率是相對于MS密封膠厚度的應變。按照《玻璃幕墻工程技術規范》(JGJ 102-2003)中的設計規定，MS密封膠的變位承受能力是取允許應力0.14MPa時的伸長率。對于1 mm厚度的MS密封膠試件，MS密封膠膠樣A的允許變形量不能超過O.Slmm，MS密封膠膠樣B的允許變形量不能超過0.77mm，MS密封膠膠樣C的允許變形量不能超過1.3mm ,對于12mm厚度的MS密封膠試件，MS密封膠膠樣A的允許變形量不能超過3.96mm，MS密封膠膠樣B的允許變形量不能超過4.44mm ,MS密封膠膠樣C的剪切變形不能超過4.8mm。從絕對變形來看，薄層粘結的MS密封膠允許承受的剪切變形量遠小于常規厚度粘結的MS密封膠。在實際應用中，采用薄層粘結的方式要充分考慮MS密封膠是否能承受被粘結材料之間的剪切變形。比如溫差導致的變形如果較大，超出上述范圍，引起的內應力可能超出結構膠的強度設計值，這時需要增大結構膠的厚度，以降低變形比率，進而降低溫差變形導致的內應力。
3種MS密封膠的不同厚度試件進行剪切性能測試后的粘結破壞面積為0，與鋁材、不銹鋼、玻璃均粘結良好。http://www.kzgjfl.cn/
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