黑巨茎大战乌克兰美女

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聚苯板和擠塑板的區別及聚苯板的用途

分類:常見問題 發布時間:2020-07-24 323次瀏覽

二者都是采用聚苯乙烯為基本原料進行加工制作的,但由于加工制作工藝的不同,形成兩種...

二者都是采用聚苯乙烯為基本原料進行加工制作的,但由于加工制作工藝的不同,形成兩種不同的保溫材料。XPS擠塑聚苯板:是以聚苯乙烯為原料加上其它原料及防火劑,通過加熱混合同時注入催化劑,然后擠壓成型的硬質發泡塑板。 EPS膨脹聚苯板:是含有揮發性液體發泡劑的可發性聚苯乙烯(eps)珠粒,經加熱預發泡后在模具中加熱成型,具有微細閉孔的結構特點。 

二者的區別在于:

一、 擠塑板比聚苯板的導熱系數低。在選用厚度上比聚苯板有極大優勢。 

二、 擠塑板比聚苯板的抗壓強度或壓縮強度高,所以,擠塑板常用與上人屋面保溫和地下室及地坪保溫。 

三、 擠塑板比聚苯板的不足之處是:密度大,結構密實,顯脆性,不透氣,并且表面光滑,不經界面處理,粘結性較差。

聚苯板全稱聚苯乙烯泡沫板,又名泡沫板或EPS板。是由含有揮發性液體發泡劑的可發性聚苯乙烯珠粒,經加熱預發后在模具中加熱成型的具有微細閉孔結構的白色固體。形態如我們買家具里面的防震泡沫。

聚苯板的主要用途:

1、用于建筑墻體、屋面保溫、復合保溫板材的保溫層;

2、用于車輛、船舶制冷設備和冷藏庫的隔熱材料;

3、用于裝潢雕刻各種模型。

4、用作防水層的保護層。


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黑巨茎大战乌克兰美女
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