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壓敏膠型熱收縮帶的密度是多少?

發布時間: 2020-02-27

 

  隨著壓敏膠型熱收縮帶粘彈體防腐膠帶配合得到廣泛應用,產品的交易多為重量計價,其密度成了諸多客戶所關注的問題。壓敏膠型熱收縮帶的密度也關系其質量的優劣。

  
  壓敏膠型熱收縮帶是有通過輻射交聯后聚乙烯基材與丁基橡膠改性聚異丁烯膠粘劑,經熱復合工藝制造而成。使用時對表面加熱達到外層的聚乙烯收縮,內膠層熔化。嚴密粘貼在粘彈體防腐膠帶層上提供優異保護,為需防腐蝕保護的載體達到二次防腐蝕作用。聚乙烯密度在0.95g/cm3左右,丁基橡膠、聚異丁烯膠的密度為1.10g/cm3,加需少量填料制成的管道防腐蝕膠粘劑不過1.05g/cm3。

  
  以基材厚度1.30mm,膠粘層厚1.50mm產品為例,其每平方米重量2.94kg。綜合得出壓敏膠型熱收縮帶的密度是1.05g/cm3。

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