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國內中空玻璃用聚氨酯密封膠存在的問題及解決方案
- 發布時間 : 2024-1-13 16:16:55
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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.
國內中空玻璃用聚氨酯密封膠存在的問題及解決方案
(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 : 2024-1-13 16:16:55
- Views:
Information
介紹了中空玻璃聚氨酯密封膠的發展歷程，以及被用作中空玻璃邊部密封的原因和技術要求。指出國內中空玻璃用聚氨酯密封膠存在的問題及解決方案。
我國的中空玻璃生產始于20世紀60年代，從最初的手工制作單道密封工藝發展為雙道自動化封裝。目前國內中空玻璃生產企業達到數千家，年產量四億多平方米。經過幾十年的研究試驗及實踐應用，中空玻璃主流產品邊部密封均采用聚氨酯密封膠加二道密封膠的組合模式:即第一道密封采用聚氨酯密封膠，主要起密封作用;第二道密封則由聚硫、硅酮或聚氨醋類固化密封膠來完成，因其具有優良的彈性和對玻璃良好的粘結性能而起到輔助密封且保證中空玻璃結構穩定的作用。雙道密封相輔相成，缺一不可。
丁基橡膠，以異丁烯類聚合物為主體材料添加少量助劑形成的共聚物，為世界耗量最大的4種合成橡膠之一。丁基橡膠分子結構中雙鍵含量只有0.5%一2%，分子結構高度飽和且分子鏈側基是體積較小的甲基，有助于分子排列緊密，特殊的分子結構使其具有優異的耐氣候老化、耐熱、耐酸堿性能及優良的氣密性和電絕緣性能。廣泛用于交通、醫藥、電子、建筑以及水利工程等。中空玻璃用聚氨酯密封膠是以丁基橡膠為主體材料添加炭黑及其他功能助劑，提高材料的抗紫外線性能、豁度及粘結性。后續改進的柔性暖邊條以及在線成型間隔密封膠的內層材料均以丁基橡膠為主。http://www.mjdd002.com/
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