国内中空玻璃用聚氨酯密封胶的市场现状

发布时间 : 2022-11-1 11:13:00
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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.

国内中空玻璃用聚氨酯密封胶的市场现状

(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 : 2022-11-1 11:13:00
Views:

国家第三方权威机构对国内中空玻璃用聚氨酯密封胶的检测情况2018年国家玻璃检测中心收到来自不同地区玻璃深加工企业2个聚氨酯密封胶样品，编号分别为1#} 2#,按照GB/T 29755-2013 }进行了检测检测结果见表1。从表1可以看出，1#, 2#样品标况下的拉伸粘结性、水一紫外线处理后拉伸粘结性、热空气老化后拉伸粘结性、定伸粘结性、弹性恢复率等主要力学性能指标均不能满足GB/T 29755标准要求，即样品的粘结性能差、弹性恢复率差，用于中空玻璃后易造成玻璃脱粘、开裂，导致中空玻璃出现漏气、漏水等提前失效现象。

国内某企业CANS实验室对国内中空玻璃用聚氨酯密封胶的检测情况国内某企业CANS实验室对来自不同地区玻璃深加工企业5个聚氨酯密封胶样品编号为3#-7#，按照GB/T 29755-2013进行了检测，检测结果见表2从表2可以看出，①3#, 5#, 6#, 7#样品标况下的拉伸粘结性、水一紫外线处理后拉伸粘结性、热空气老化后拉伸粘结性、定伸粘结性、弹性恢复率等主要力学性能指标均不能满足GB/T 29755标准要求;② 4样品标况下的拉伸粘结性、定伸粘结性、弹性恢复率能满足GB/T 29755标准要求，但经过水一紫外加速老化和热空气加速老化后，其力学性能下降较快，与基材的脱粘严重，无法保证中空玻璃的使用寿命。

从国家第三方权威机构及中原思蓝德公司CANS实验室对国内中空玻璃用聚氨酯密封胶的检测结果来看，目前国内中空玻璃用聚氨酯密封胶的性能指标不能完全满足GB/T 2975标准要求;用于中空玻璃后易造成玻璃脱粘、开裂，导致中空玻璃出现漏气、漏水等提前失效现象，故暂不建议用于中空玻璃的密封。www.sdyuantai.com

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