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Treasure Island International Development Ltd.


Hong Kong company

Address: 3/F, Viet Luen  Factory Building,126 Wai Yip Street, Kwun Tong, Kowloon,Hong Kong

Telephone:(852)2341 8781

fax:(852)2790 7492

 

domestic company
Address: Building A7, Second Industrial Zone, Fuwei Community, Fuyong Town, Baoan District, Shenzhen
Telephone:(0755)2734 8831

fax:(0755)2734 8315

URLen.treasureislandint.com




防火海绵的阻燃原理是什么?

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防火海绵的阻燃原理是什么?

date:2019-05-06 11:17 source:http://en.treasureislandint.com click:

阻燃剂其本功能在于干扰氧、热和可燃物这三个维持燃烧的基本要素。

一般可通过以下途径实现。

1)阻燃剂能产生较重的不燃性气体或沸点液体,覆盖于塑料表面,

将氧化和可燃物的联系阻断。

2)通过阻燃剂的吸热分解或吸热升华,降低聚合物表面温度。

3)阻燃剂产生大量的不燃性气体,

冲谈燃烧区域的可燃性气体浓度和氧浓度。

4)阻燃剂捕捉性自由基,中断链式氧化反应。

通常一种阻燃剂是可显示出几种阻燃机理而非单一的一种。

对一种塑料而言,选择阻燃剂时需考虑以下几个方面;

1)阻燃效果符合要求,热稳定性好;

2)与塑料相容性好,迁移小;

3)对塑料的物理-力学性能等影响小;

4)质高价廉、经济合理。


tag:防火阻燃

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