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中空玻璃用外道MS密封胶的外观质量要求
- 发布时间 : 2024-11-20 17:23:41
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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.
中空玻璃用外道MS密封胶的外观质量要求
(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 : 2024-11-20 17:23:41
- Views:
从表2的判定规则可以看出,该标准对中空玻璃用外道MS密封胶的外观质量要求也是非常的严格的。表3从色泽、细度、气味、气泡、粗粒、结块、结皮、聚集态和有无析出物对市售中空玻璃用MS密封胶进行外观质量优劣判定,并进行分析说明。
有关力学性能的几个术语的定义见表5,市售中空玻璃用弹性MS密封胶力学性能见表。GB/T11944-2002《中空玻璃》标准中通过密封试验(真空箱试验)来测试中空玻璃MS密封胶的软硬程度以及是否存在泄露,由于中空玻璃间隔层内压力大于真空箱内压力,中空玻璃MS密封胶的厚度会向外增长,用该方法测量样品厚度增长程度及变形的稳定程度来总判定用这种MS密封胶制作的中空玻璃的密封性能。如果中空玻璃MS密封胶过硬,位移能力差,用这种MS密封胶制作的中空玻璃在真空状态下难以适应压差的变化发生相应的变形而密封失效。
外道MS密封胶是将组成中空玻璃的各个元件有效的砧结成一个整体,保持中空玻璃结构的稳定。它必须具备以下性能:一是较强的砧结性能和机械性能,通过保持一定的强度,避免由于中空玻璃的动静荷载作用产生过量的位移,使内道MS密封胶能够完成阻隔水气的功能。二是良好的弹性,当因动荷载引起变形后,应能够恢复初始状态。JC/T486-2001《中空玻璃用弹性MS密封胶》标准中正是通过弹性恢复率和拉伸模量来检验MS密封胶上述性能的。但目前国内市售中空玻璃用弹性MS密封胶大多数属弹性级的模量,甚至当试件还末拉伸至40%时,试件就已发生破坏了。http://www.sdyuantai.com/
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