MS密封胶对地板组件和防寒材组件中VOC的释放影响

发布时间 : 2022-10-30 15:34:50
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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.

MS密封胶对地板组件和防寒材组件中VOC的释放影响

(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 : 2022-10-30 15:34:50
Views:

B组试验放置7d和21后，防寒材组件h中主要释放物质变为了甲苯、乙酸乙醋和4一甲基一4-轻基一2一戊酮，其中乙酸乙醋只来源于防寒材b，而4一甲基一4-轻基一2一戊酮则只来源于MS密封胶b，随着放置时间的延长，乙酸乙醋在防寒材组件b中的占比逐渐增加，而4一甲基一4-轻基一2一戊酮的占比则逐渐降低，说明防寒材组件b中的MS密封胶b释放较快，后期是聚氨酯密封胶b与防寒材b共同对防寒材组件b中的VOC产生影响。

综上述所，随着放置时间的延长(至少21d),MS密封胶a一直是地板组件a中VOC主要释放来源，而MS密封胶b对防寒材组件b的VOC释放贡献度在逐渐降低。

通过袋子法探究了制样初期及一定时间(至少21d)内，MS密封胶对地板组件和防寒材组件中VOC的释放影响，得到如下结论。

(1)制样初期，MS密封胶对地板组件和防寒材组件中VOC的影响最大，且施胶量越大，影响越大。

(2)粘接组件中MS密封胶表面因被覆盖，故随着放置时间的延长，其在粘接组件中的VOC释放速率会明显低于相应铝板喷MS密封胶中的。

(3)随着放置时间的延长(至少21d),MS密封胶对地板组件中VOC的影响程度要高于相应防寒材组件中的。

因此，在保证粘接性能的前提下，应尽量避免在地板组件、防寒材组件及其它多层复合材料中使用高VOC含量的MS密封胶，且要严格控制施胶量，从而提升轨道车辆整车空气质量。www.sdyuantai.com

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上一篇: 随放置时间延长聚氨酯密封胶对粘接组件中VOC的释放影响

下一篇: 硅烷改性聚氨酯密封胶及丁基防水嵌缝胶的应用领域