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氟胶和丁腈密封的区别

2021-06-18 09:47 厦门三江盛达
密封圈之一,但是很多人在面临如何选择氟胶跟丁腈胶的时候比较疑惑,下面正兴隆精密橡胶来给您讲解一下这两者的区别,看一下氟橡胶比丁腈橡胶优势又在哪里?以便您更好的进行选择。"]]],["p",{"ind":{"firstLine":28,"left":0},"jc":"left","keepLines":false,"keepNext":false,"rPr":{"caps":false,"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"italic":false,"spacing":0,"sz":10.5,"szUnit":"pt"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":{"line":1.53,"lineRule":"atLeast"},"styleId":"2","windowControl":true},["span",{"data-type":"text"},["span",{"caps":{},"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":0,"sz":10.5,"szUnit":"pt","data-type":"leaf"},"1、耐高温性能"]]],["p",{"ind":{"firstLine":28,"left":0},"jc":"left","keepLines":false,"keepNext":false,"rPr":{"caps":false,"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"italic":false,"spacing":0,"sz":10.5,"szUnit":"pt"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":{"line":1.53,"lineRule":"atLeast"},"styleId":"2","windowControl":true},["span",{"data-type":"text"},["span",{"caps":{},"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":0,"sz":10.5,"szUnit":"pt","data-type":"leaf"},"氟胶FKM:一提到氟胶,估计很多人会首先想到它的耐高温性能,确实,氟橡胶的耐高温性能和硅橡胶一样,可以说是目前橡胶弹性体中更好的,标准型氟橡胶代号FKM或FPM,可以长期在200℃下使用,而全氟醚橡胶FFKM更高可以在330℃下连续使用。"]]],["p",{"ind":{"firstLine":28,"left":0},"jc":"left","keepLines":false,"keepNext":false,"rPr":{"caps":false,"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"italic":false,"spacing":0,"sz":10.5,"szUnit":"pt"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":{"line":1.53,"lineRule":"atLeast"},"styleId":"2","windowControl":true},["span",{"data-type":"text"},["span",{"caps":{},"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":0,"sz":10.5,"szUnit":"pt","data-type":"leaf"},"丁腈胶NBR:更高100℃以内使用,从耐温性能来说氟橡胶完胜。"]]],["p",{"ind":{"firstLine":28,"left":0},"jc":"left","keepLines":false,"keepNext":false,"rPr":{"caps":false,"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"italic":false,"spacing":0,"sz":10.5,"szUnit":"pt"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":{"line":1.53,"lineRule":"atLeast"},"styleId":"2","windowControl":true},["span",{"data-type":"text"},["span",{"caps":{},"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":0,"sz":10.5,"szUnit":"pt","data-type":"leaf"},"2、机械性能"]]],["p",{"ind":{"firstLine":28,"left":0},"jc":"left","keepLines":false,"keepNext":false,"rPr":{"caps":false,"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"italic":false,"spacing":0,"sz":10.5,"szUnit":"pt"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":{"line":1.53,"lineRule":"atLeast"},"styleId":"2","windowControl":true},["span",{"data-type":"text"},["span",{"caps":{},"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":0,"sz":10.5,"szUnit":"pt","data-type":"leaf"},"氟橡胶:氟橡胶具有优良的物理机械性能,在抗撕裂强度和扯断伸长率方面均具有优势。"]]],["p",{"ind":{"firstLine":28,"left":0},"jc":"left","keepLines":false,"keepNext":false,"rPr":{"caps":false,"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"italic":false,"spacing":0,"sz":10.5,"szUnit":"pt"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":{"line":1.53,"lineRule":"atLeast"},"styleId":"2","windowControl":true},["span",{"data-type":"text"},["span",{"caps":{},"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia","eastAsiaTheme":"minorEastAsia","hAnsiTheme":"minorEastAsia","hint":"eastAsia"},"shd":{"fill":"#FFFFFF","val":"clear"},"spacing":0,"sz":10.5,"szUnit":"pt","data-type":"leaf"},"丁腈胶:丁腈橡胶具有优良的物理机械性和加工性能。"]]],["p",{"ind":{"firstLine":28,"left":0},"jc":"left","keepLines":false,"keepNext":false,"rPr":{"caps":false,"color":"#000000","fonts":{"asciiTheme":"minorEastAsia","cstheme":"minorEastAsia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氟橡胶丁腈橡胶都是目前比较常用的密封圈之一,但是很多人在面临如何选择氟胶跟丁腈胶的时候比较疑惑,看一下氟橡胶比丁腈橡胶优势又在哪里?

1、耐高温性能

氟胶FKM:一提到氟胶,估计很多人会首先想到它的耐高温性能,氟橡胶的耐高温性能和硅橡胶一样,可以说是目前橡胶弹性体中较好的,标准型氟橡胶代号FKM或FPM,可以长期在200℃下使用,而全氟醚橡胶FFKM更高可以在330℃下连续使用。

丁腈胶NBR:更高100℃以内使用,从耐温性能来说氟橡胶完胜。

 

2、机械性能

氟橡胶:氟橡胶具有优良的物理机械性能,在抗撕裂强度和扯断伸长率方面均具有优势。

丁腈胶:丁腈橡胶具有优良的物理机械性和加工性能。

 

3、稳定性

氟胶:氟橡胶材质具有稳定的化学性能,它也是目前所有橡胶弹性体中耐各种介质性能更好的一种。氟橡胶耐硅醚油、硅酸油,石油基油、双酯油、耐多数的有机、无机溶剂、耐无机酸,药品等,其中氟橡胶不耐的材质仅仅以下几种:低分子的醚、酯、酮以及全部的氨、胺、氢氟酸、磷酸类液压油。

4、耐老化性能

氟橡胶:氟橡胶具有非常好的耐天候老化性能,耐臭氧性能。氟橡胶制成品在自然存放5年性能仍然令人满意。

丁腈胶:丁腈橡胶耐老化性能比氟胶差一些,一般丁腈胶制成品可以存放10年时间。

 

5、低温性

氟橡胶:由于氟橡胶本身的化学机构导致氟橡胶本身耐低温的性能并不是特别出色,在实际使用的氟橡胶低温性能也一般,除非添加特殊添加剂可以让氟胶耐低温达到零下30度,否则一般的氟胶也就只能达到零下10度。

丁腈胶:一般的丁腈胶可耐低温-30℃,而具有耐寒性的丁腈胶可耐低温-50℃。

6、价格

氟橡胶:氟橡胶由于综合性能非常优异,其价格也很昂贵。

丁腈胶:目前更具性价比的橡胶弹性体材质。

应用范围

氟橡胶:由于氟橡胶具有耐油、耐高温、耐高真空及耐酸碱、耐多种化学介质等的特点,广泛应用在导弹、火箭、宇宙飞行、舰艇、现代航空、原子能、及汽车、造船、化学、石油、电讯、仪器、机械等工业领域。

丁腈胶:丁腈胶因耐油、耐热性能和物理机械性能优异,现在成为耐油橡胶制品的标准弹性体,广泛用于汽车、航空航天、石油开采、石化、纺织、电线电缆、印刷和食品包装等领域。

氟橡胶油封优点很多,当然也有缺点,就是价格昂贵、耐低温效果差,但是在高温领域它又很难被替代,随着机械、汽车等领域向着高温高压的方向发展。

 
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