聚氨酯密封胶试验材料及设备

发布时间 : 2023-6-2 9:38:10
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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.

聚氨酯密封胶试验材料及设备

(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 : 2023-6-2 9:38:10
Views:

聚氨酯密封胶;浅黄色枯稠状，主要由环氧树脂、甲基丙烯酸、安息香醚、活性稀释剂制得。

单组分高温胶:黑色流体状，粘度为50000rnPa·s。

自制紫外光固化机:功率1000W，灯距15crn，波长350-380nrn。标准试验板;5mrn ℃ 100rnm ℃ 100rnm,铝合金材料。光固深度的试验。我们将聚氨酯密封胶与单组分胶以及添加剂按不同比例混合，搅拌均匀、排气泡后徐布于标准试验板上，反复刮平，保证其胶层厚度为0. 5rnrn，放人紫外光固化机30s，观察其是否完全固化。通过七种不同比例的配方优选，确定了最佳混合比例。试验得出:在给定的光固条件和胶层厚度下，只有当聚氨酯密封胶的重量比例在fi5%以上时，其固化深度才能达到要求。热固时间的试验将上述七种不同比例的配方进行热固化时间的优选，在100℃条件下进行。通过试验得出:在给定的固化温度100℃下，只有当单组分高温胶的重量比在30环以上时，才能保证其热固化时间在1-1. 5h以内。

由以上实验可以确定，当聚氨酯密封胶重量比在70肠一“写时，单组分胶重量比在30-35%之间时，才能既满足光固化深度又能满足热固化时间的共同要求。通过正交试验，我们选定了聚氨酯密封胶与单组分胶最佳重量比，成功地配制出了光热两固型继电器堵封用胶。www.sdyuantai.net

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