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MS密封膠對地板組件和防寒材組件中VOC的釋放影響
- 發布時間 : 2022-10-30 15:34:50
- Views:
(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密封膠對地板組件和防寒材組件中VOC的釋放影響
(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.
- 發布時間 : 2022-10-30 15:34:50
- Views:
Information
B組試驗放置7d和21后，防寒材組件h中主要釋放物質變為了甲苯、乙酸乙醋和4一甲基一4-輕基一2一戊酮，其中乙酸乙醋只來源于防寒材b，而4一甲基一4-輕基一2一戊酮則只來源于MS密封膠b，隨著放置時間的延長，乙酸乙醋在防寒材組件b中的占比逐漸增加，而4一甲基一4-輕基一2一戊酮的占比則逐漸降低，說明防寒材組件b中的MS密封膠b釋放較快，后期是聚氨酯密封膠b與防寒材b共同對防寒材組件b中的VOC產生影響。
綜上述所，隨著放置時間的延長(至少21d),MS密封膠a一直是地板組件a中VOC主要釋放來源，而MS密封膠b對防寒材組件b的VOC釋放貢獻度在逐漸降低。
通過袋子法探究了制樣初期及一定時間(至少21d)內，MS密封膠對地板組件和防寒材組件中VOC的釋放影響，得到如下結論。
(1)制樣初期，MS密封膠對地板組件和防寒材組件中VOC的影響最大，且施膠量越大，影響越大。
(2)粘接組件中MS密封膠表面因被覆蓋，故隨著放置時間的延長，其在粘接組件中的VOC釋放速率會明顯低于相應鋁板噴MS密封膠中的。
(3)隨著放置時間的延長(至少21d),MS密封膠對地板組件中VOC的影響程度要高于相應防寒材組件中的。
因此，在保證粘接性能的前提下，應盡量避免在地板組件、防寒材組件及其它多層復合材料中使用高VOC含量的MS密封膠，且要嚴格控制施膠量，從而提升軌道車輛整車空氣質量。www.caffertyclinic.com
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