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    认识玻璃钢花盆的缺点有哪些?
    浏览:0 发布日期:2021/3/5 9:48:42

    玻璃钢花盆的缺点;


    1.弹性模量低;


    FRP的弹性模量比木材大两倍,但比钢(E=2.1×106)小10倍,因此在产品结构中常感到刚性不足,容易变形,可以做成薄壳结构、夹层结构,也可通过高模量纤维或者做加强筋等形式来弥补。


    2.长期耐温性差;


    一般FRP不能在高温下长期使用,通用聚酯FRP在50℃以上强度就明显下降,一般只在100℃以下使用;通用型环氧FRP在60℃以上,强度有明显下降。但可以选择耐高温树脂,使长期工作温度在200~300℃是可能的。


    3.老化现象;


    老化现象是塑料的共同缺陷,FRP也不例外,在紫外线、风沙雨雪、化学介质、机械应力等作用下容易导致性能下降。


    4.层间剪切强度低


    层间剪切强度是靠树脂来承担的,所以很低。可以通过选择工艺、使用偶联剂等方法来提高层间粘结力,最主要的是在产品设计时,尽量避免使层间受剪。


    以上分析总结了玻璃钢花盆有哪些缺点,有了这些分析相信想购买的商家应该会根据自己需求做选择。


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