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阻燃剂用量对聚氨酯密封胶阻燃性能的影响

  • 发布时间 : 2023-5-9 17:55:11
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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.

阻燃剂用量对聚氨酯密封胶阻燃性能的影响

(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 : 2023-5-9 17:55:11
  • Views:
Information

       如前所述,本试验使用了硅磷系化合物复配阻燃剂,硅磷协同阻燃可以带来更好的阻燃效果,其用量对聚氨酯密封胶阻燃性能的影响列于表2。

       从表2可以看出,当阻燃剂添加量不大于13.5%时,随着阻燃剂用量的增加,硅橡胶的阻燃性能显著提高;当阻燃剂用量达到13.5%时,聚氨酯密封胶的燃烧氧指数为44,阻燃等级达到最高级别VO级;继续增加阻燃剂的用量到超过13.5%后,聚氨酯密封胶的阻燃性能上升趋势减缓(燃烧氧指数为2328时,材料稍具阻燃性;燃烧氧指数为2839时,材料具有阻燃性)。同时,当阻燃剂用量为11%时,聚氨酯密封胶的阻燃等级已经达到最高级别VO级。考虑聚氨酯密封胶的综合性能,阻燃剂的用量宜为11%。www.sdyuantai.com

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