中空玻璃因热熔丁基防水嵌缝密封胶发生流淌而失效

发布时间 : 2024-2-21 18:43:25
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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.

中空玻璃因热熔丁基防水嵌缝密封胶发生流淌而失效

(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 : 2024-2-21 18:43:25
Views:

采用掺油的中空玻璃丁基防水嵌缝密封胶制作的双道密封中空玻璃在使用过程中，矿物油会向热熔丁基防水嵌缝密封胶中扩散，加之一些厂家为了最大限度地降低材料的成本，选用的矿物油分子量较小，钻度也较低，因此渗透性特别强，从而使热熔丁基防水嵌缝密封胶的软化点大幅降低。在阳光强烈或高温环境条件下(如夏季，南方地区太阳直射下温度可高达70℃以上)，热熔丁基防水嵌缝密封胶就会发生流淌现象，严重的甚至使热熔丁基防水嵌缝密封胶溶解导致中空玻璃表面污染及粘结失效。市场上此问题反映的非常突出，用户投诉也较为集中，图2是在武汉某工程现场拍摄的照片。从照片中可以清晰地看出中空玻璃因热熔丁基防水嵌缝密封胶发生流淌而失效。

中空玻璃耐紫外线辐照性能按照GB/'I'11944规定的要求，制作成标准的中空玻璃样块，按标准规定的测试方法进行耐紫外线辐照实验，观察中空玻璃的出雾情况，然后再放置7d做破坏性实验，观察2道密封胶的界面出雾现象，实验结果见表2。结果表明，采用掺油的中空玻璃丁基防水嵌缝密封胶制作的中空玻璃未能通过耐紫外线辐照实验，为不合格品。http://www.sdyuantai.com/

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上一篇: 中空玻璃热熔丁基聚氨酯密封胶的相容性

下一篇: 掺油的中空玻璃硅烷改性聚氨酯密封胶粘结性能