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MS密封膠“定伸永久變形”性能的驗證試驗

  • 發布時間 : 2024-5-18 12:01:18
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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“定伸永久變形”性能的驗證試驗

(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 : 2024-5-18 12:01:18
  • Views:
Information

       根據審查會專家的建議,編制組進行了采用“定永久變形”表征MS密封膠應力緩和性能的驗證試驗。具體試驗情況如下:收集了R類(應力緩和型)改性硅酮建筑MS密封膠樣品3組,分別來自日本及國內不同的公司,樣品的具體情況見表2。

R類改性硅酮MS密封膠定伸永久變形驗證試驗

       試驗選取3組R類改性硅酮MS密封膠(40#42# )樣品,分別進行快速養護與標準條件養護、有底涂與無底涂的定伸永久變形對比試驗。其中,快速養護條件為23℃,4 d+50℃,3 d,標準養護條件為23 qCx28d。根據初期探索試驗情況,試驗條件設定為:試驗溫度23℃、試驗時間48 h、定伸伸長率30%,結果以定伸永久變形表示。

試驗結果與分析

       MS密封膠快速養護條件的定伸永久變形試驗結果見表3;標準養護條件的定伸永久變形試驗結果見表4;不同條件的定伸永久變形試驗結果統計見表。

       由表3-5可以看出:R類MS密封膠無論采取快速養護方法還是標準養護方法,測出的定伸永久變形試驗結果均大于50% , 3個樣品的定伸永久變形結果范圍(平均值)為52%-92%。http://www.16878m.com

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