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擴鏈劑用量對阻燃硅烷改性聚氨酯密封膠耐老化性能的影響
- 發布時間 : 2024-6-6 10:24:52
- 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.
擴鏈劑用量對阻燃硅烷改性聚氨酯密封膠耐老化性能的影響
(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 : 2024-6-6 10:24:52
- Views:
Information
選擇擴鏈劑的用量為0份和1.4份，分別制得阻燃有機硅硅烷改性聚氨酯密封膠，并按GB/丁13477.8制成工型試件，工型試件水紫外老化300 h后的拉伸性能匯總于圖。
從圖2中的應力一應變曲線可以看到，未添加擴鏈劑和添加1.4份擴鏈劑的阻燃有機硅硅烷改性聚氨酯密封膠，經水紫外老化300 h處理后，力學強度保持率均比較高、未出現明顯衰退。引人擴鏈劑不會影響阻燃有機硅硅烷改性聚氨酯密封膠的耐老化性能。
表3詳細匯總了老化前后兩種阻燃有機硅硅烷改性聚氨酯密封膠工型試件拉伸應變的數據�？梢园l現，未添加擴鏈劑的阻燃有機硅硅烷改性聚氨酯密封膠，工型試件的拉伸應變不足60%。引人1.4份擴鏈劑后，其工型試件的拉伸應變達到110%;應變為60%和100%時，試件的拉伸模量分別為0.64 MPa和0.85 MPa。此外，該阻燃有機硅硅烷改性聚氨酯密封膠老化前后對玻璃和鋁板粘結良好，均未出現粘結面破壞的情況。http://www.ruilingxiang.cn/
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