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幕墙接缝丁基防水嵌缝胶性能分类

  • 发布时间 : 2022-11-24 18:36:29
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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.

幕墙接缝丁基防水嵌缝胶性能分类

(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 : 2022-11-24 18:36:29
  • Views:
Information

       主要介绍了现代应用的建筑幕墙接缝丁基防水嵌缝胶的分类、性能、胶缝表示方法以及胶缝的宽、厚设计。建筑幕墙是建筑的组成部分,建筑是由不同材料、构件和部件组合连接的构筑体,各种应力和变位特征将会集中表现在结构的连接接缝,各种液体、气体、粉体、振动波和热介质也将接缝作为流动的通道,接缝的设置和密封影响着建筑的功能质量并关系到建筑耐久安全,为此已于2008年2月1日开始执行的GB/T 21086-2007《建筑幕墙》标准第5.3.3.1条b)规定了幕墙接缝丁基防水嵌缝胶性能应符合该标准附录A中A.3的相关规定,位移能力级别应符合设计位移量的要求,不宜小于20级。
       包括嵌缝膏、丁基防水嵌缝胶和结构丁基防水嵌缝胶,并按下列不同方法进行分类:
       a)按产品适用于基材:玻璃(代号:G);金属(代号:M);混凝土、水泥砂浆(代号:C);其他(代号:Q);
       b)按适用功能(位移能力及模量)分级(见表1);
       级别—按位移能力分为25级、20级、12.5级和7.5级四个级别;
       次级品—按模量划分仅对符合25级和20级的丁基防水嵌缝胶分为低模量(代号:LM)和高模量(代号:HM); 12.5级以下的丁基防水嵌缝胶按弹性恢复率分为弹性体(代号:12.5E)、塑性体(代号:12.5P)和塑性嵌缝膏(代号:7.5P)。
       c)按型别原则:
       —按流动性分为:非下垂}(N)、自流平}(L)}
       —按组分数分为:建筑硅嗣丁基防水嵌缝胶单组分(1)、双组分(2);其他丁基防水嵌缝胶单组分(I)、双组分(II)或多组分;
       —按适用季节分为:夏季型(S)、冬季型(W)、全年型(A);
       d)按固化机理分为:湿气固化型(K)、化学反应固化型(Z)、溶剂挥发固化型(Y)、水乳液干燥固化型(E)(硅铜建筑丁基防水嵌缝胶则分为A型—脱酸即酸性,B型—脱醇即中性二种);
       e)按固化速度分为(用于环氧丁基防水嵌缝胶):快固型(K)和普通型(P);
       f)按基体树脂分为(用于非结构承载用石材粘胶剂):不饱和聚醋树脂型(UP)和环氧树脂型(EP);双组分分为基体树脂组分(A)和固化剂组分(B);
       g)按用途分为(用于非结构承载用石材粘胶剂):适用于耐水要求较高的产品(I)、适用于耐水一般要求的产品(B):
       h)按用途分为(用于硅铜建筑丁基防水嵌缝胶):镶装玻璃用(G类),建筑接缝用(F类);
       i)按基础聚合物:硅铜聚合物(SR)、聚硫橡胶(PS),聚氨脂甲酸脂(PU)、丙烯酸脂聚合物(AC)、丁基(BR)、丁基橡胶(BU),氯丁橡胶(CR)、丁苯橡胶(SB)、沥青、油性树脂及各种新发展的改性硅酮聚合物(MS)。www.sdyuantai.com

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