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解決硅烷改性聚氨酯密封膠固化速度慢需要夾具配合裝配不便

  • 發布時間 : 2023-8-9 8:31:52
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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.

解決硅烷改性聚氨酯密封膠固化速度慢需要夾具配合裝配不便

(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 : 2023-8-9 8:31:52
  • Views:
Information

       國內汽車行業尚未建立汽車膠粘劑/硅烷改性聚氨酯密封膠材料性能標準和專用試驗方法標準,既影響了膠粘劑/硅烷改性聚氨酯密封膠在汽車行業的應用進程,也制約了汽車用膠研制和生產單位的規范和發展,難以建立完善的質量保證體系。由于對汽車工業用膠還沒有制定嚴格的環保法規,加上汽車廠家出于對成本的考慮,環保汽車用膠的開發和應用還未得到高度重視,存在環境污染的熔濟型膠粘劑在汽車行業仍有使用。滿足一般使用要求的通用型汽車膠產品較多,而用于特殊需要的高技術含量、性能高的產品比較少。自主創新能力較弱,研發能力有待進一步提高。單組分硅烷改性聚氨酯密封膠已實現了國產化,并在汽車行業得到部分應用。但由于這種單組分硅烷改性聚氨酯密封膠使用時需要配套玻璃活化劑和漆面、玻璃底劑,才能保證足夠的粘接強度,而且固化速度較慢,裝配工藝繁瑣,為此又出現了不用涂活化劑、底劑和瞬時定位型風擋玻璃膠。如在風擋玻璃裝配時通過配備加熱涂布裝置,使微熱的膠料對被粘面立刻產生較高的初粘強度,保證了車窗玻璃的定位,然后逐步達到完全固化,從而解決了硅烷改性聚氨酯密封膠固化速度慢、需要夾具配合裝配的不便。www.16878m.com

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