质保25年的MS密封胶初始拉伸粘结强度

发布时间 : 2024-10-1 15:14:01
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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.

质保25年的MS密封胶初始拉伸粘结强度

(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.

发布时间 : 2024-10-1 15:14:01
Views:

试验计划开展50年，从MS密封胶试样开始放置日期(2013年2月1日)开始，每年取样至少2次，直至50年。每次取回的MS密封胶试样在标准条件下静置(24士4) h后，进行力学性能测试。

不同品牌MS密封胶产品的自然老化性能对比研究(质保25年的MS密封胶与质保10年的MS密封胶的性能对比研究)，采用同样的方法在郑州地区自然老化场地同期进行。

参照标准JG/T 475-2015或ETAG 002中的规定进行拉伸粘结性能测试。试验温度:(23士2)℃，拉伸速度:5 mm/minx。

从2013年2月起，持续3年对深圳某工程使用的质保25年MS密封胶的自然老化情况进行跟踪检测，每年取样2次，性能测试结果见表1和图3。

分析表1和图3可以发现，质保25年的MS密封胶初始拉伸粘结强度为1.10 MPa，在36个月的持续曝晒和自然老化试验过程中，拉伸粘结强度一直保持在0.961.14 MPa之间上下浮动，相对标准偏差仅6.7 %，即拉伸粘结强度基本保持不变;初始断裂伸长率为265%，老化初期该值略有增加(老化初期结构胶发生深层固化),5个月时增加到450%，之后一直保持在378%一413%之间上下浮动，相对标准偏差仅6.5%，基本保持稳定。可见，经过3年的自然老化后，该项工程使用的质保25年MS密封胶力学性能基本保持稳定，具有优异的耐久性。http://www.sdyuantai.com

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