选择聚氨酯密封胶时请牢记你需要的最终用途

发布时间 : 2024-6-22 17:54:38
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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.

选择聚氨酯密封胶时请牢记你需要的最终用途

(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 : 2024-6-22 17:54:38
Views:

面对品种繁多的聚氨酯密封胶产品，知道如何选择适合你需求的产品非常重要。如果选择的工业聚氨酯密封胶不合适，或虽选对了聚氨酯密封胶，但使用的方式不当，都无法达到预期的效果。在选择聚氨酯密封胶时，请牢记你需要的最终用途，并可参考如下5种特性。

1、较大温度范围内的稳定性

优质的聚氨酯密封胶在完全固化后，能在较大范围的温度之内保持良好的性能。最好的聚氨酯密封胶能耐受的温度范围为一85一599华氏度(约为一65一315摄氏度)。请选择在要求的温度范围之外仍能保持稳定性能的聚氨酯密封胶，以应对难以预料的温度变化。

2、耐候性和化学稳定性

紫外线、辐射和气候因素会使劣质聚氨酯密封胶变脆、开裂甚至剥落，最终损害接缝。因此请选择能很好地抵御这类腐蚀性因素影响的聚氨酯密封胶。此外，某些有机聚氨酯密封胶会与空气中的污染物或化学物质发生反应，就像铁与水反应产生铁锈一样。请选择不易与常见物质和工业化学物质发生反应的聚氨酯密封胶。

3、粘合强度

优质的工业聚氨酯密封胶为玻璃、陶瓷、木石、金属和塑料等工业材料提供持久的粘合力。影响聚氨酯密封胶粘合强度的因素包括化学结构、固化类型、基材穿透性等

4、电学特性

电学特性会使某些有机聚氨酯密封胶不太适合有可能接触电的运用。在这种情况下，优质的有机硅聚氨酯密封胶会是更好的选择。

5、低易燃性

某些聚氨酯密封胶具有更佳的抗燃性，可以从容抵御火灾，而有机硅聚氨酯密封胶的抗燃性尤其卓越。多种有机硅聚氨酯密封胶符合UL可燃性标准。http://www.sdyuantai.com/

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