涂覆中丁基防水嵌缝胶的样品实验前后均未发生腐蚀

发布时间 : 2022-12-4 18:59:37
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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.

涂覆中丁基防水嵌缝胶的样品实验前后均未发生腐蚀

(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 : 2022-12-4 18:59:37
Views:

图1是涂有丁基防水嵌缝胶的冷轧钢板在室温下浸泡于不同溶液中mh后的照片.从左至右依次是涂酸性丁基防水嵌缝胶SPCC冷轧钢板、涂中险丁基防水嵌缝胶SPCC冷轧钢板、涂酸性丁基防水嵌缝胶Q235冷轧钢板、涂中性丁基防水嵌缝胶Q235冷轧钢板。

从浸泡实验结果r知:试样在!()%硫酸中浸泡h后，介质F绿色，底部有黑色沉淀，试样局部或全部呈黑褐色，所涂的丁基防水嵌缝胶已经剥离，可以整片取;试样在3 % NaCI溶液中浸泡216 h后.介质呈褐色，底部有褐色沉淀，试样出现局部腐蚀，腐蚀部位呈褐色;试样在1t)0io NaOH溶液中浸泡216 h后，介质旱无色.底部有自色沉淀。

图2是SPCC裸钢与涂有丁基防水嵌缝胶的Q235, SPCC冷轧钢板在3℃下5u g/L盐水进行盐雾腐蚀实验()h, 24 h, 48 h, 72 h后的照片。

由ilFai一见:在2- h y. sPCC 钢腐蚀非常严重，涂有丁基防水嵌缝胶的试样基本完好:+ h后，涂有中性丁基防水嵌缝胶的试样已经开始腐蚀.而涂有酸性丁基防水嵌缝胶的试样基本完好:7? h后。涂有中性丁基防水嵌缝胶的试样腐蚀更为严重，而涂有酸性丁基防水嵌缝胶的试样发牛轻微的腐蚀对分别涂有和酸性、中丁基防水嵌缝胶的4种样品进行?5o h的湿热实验.结果如。

山图3可知:涂有酸陀丁基防水嵌缝胶的样品实验后腐蚀明显，涂有酸性丁基防水嵌缝胶的个别样实验后出现局部腐蚀.涂覆中丁基防水嵌缝胶的样品实验前后均未发生腐蚀。对分别涂有和酸NI，丁基防水嵌缝胶的4种样品进行红外光谱测试。谱图如图4所不山图4可得:酸性丁基防水嵌缝胶中几乎看不到碳基峰，说明儿乎没有检测日酸类气体.4种样品主要成分均为硅酮类物质，该成分对金属没有腐蚀性。www.sdyuantai.com

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