丁基防水嵌缝胶耐冻融循环性能试验结果与分析

发布时间 : 2022-11-14 18:08:23
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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.

丁基防水嵌缝胶耐冻融循环性能试验结果与分析

(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 : 2022-11-14 18:08:23
Views:

       依据4种丁基防水嵌缝胶试验现象和判定标准对耐冻融循环性能进行评价，如表3所示。表3耐冻融循环性能试验评价方法序号现象判定标准。
       1、剥落查看丁基防水嵌缝胶涂层是否有露底、脱落的情况。
       2、粉化擦拭丁基防水嵌缝胶涂层表面，查看是否有掉粉的情况。
       3、变色对比留样丁基防水嵌缝胶样品，查看光泽、颜色是否有显著变化耐冻融循环性能试验采用1组密封胶丁基防水嵌缝胶样品(PT-1,PT-2,PT-3,)，将试验结果与留样丁基防水嵌缝胶样品对比。3种丁基防水嵌缝胶样品的耐冻融循环性测试结果如表4所示。
       由表4可知，对PT-1 ,PT-2,PT-3丁基防水嵌缝胶样品在进行10次冻融循环后，PT-2 , PT-3涂层均发生剥落的情况、同时涂层上均发生不同程度开裂与粉化情况。而MO-1双组份聚氨酯密封胶覆盖下PT-1丁基防水嵌缝胶样品涂层上没有发生任何变化，对比结果表明MO-1双组份震硫密封胶耐冻融循环性能强。耐化学侵蚀试验结果与分析PT-1, PT-2 , PT-3丁基防水嵌缝胶样品的耐化学侵蚀试验结奥如表5所示。
       由表5数据可知，在不同介质中，PT-1丁基防水嵌缝胶样品15d后涂层上无变化，PT-1丁基防水嵌缝胶样品综合性能最优;PT-2丁基防水嵌缝胶样品涂层上发生了不同程度的变化，但在巧%氢氧化钠作用下PT-2丁基防水嵌缝胶样品在15 d后，涂层上无变化;PT-3丁基防水嵌缝胶样品也发生了不同程度的变化，PT-3密封胶除了在95#汽油中浸泡15d后，涂层上无变化。MO-1双组份聚氨酯密封胶覆盖下PT-1丁基防水嵌缝胶样品涂层上没有发生任何变化‘对比结果表明MO-1双组份聚氨酯密封胶耐化学侵蚀性能强。www.sdyuantai.com

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