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首页> 外文会议>European Conference on Additives amp; Colors; 20070314-15; Mondorf-les-Bains(LX) >NEW DEVELOPMENT IN PTFE-BASED ANTI-DRIPPING ADDITIVES
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NEW DEVELOPMENT IN PTFE-BASED ANTI-DRIPPING ADDITIVES

机译：PTFE基抗滴剂的新进展

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摘要

PTFE is widely used as an anti-dripping additive in flame-retardant polymer formulations in combination with flame retardant additives to achieve UL94 V-0 or similar standards required for usage electrical & electronic applications. Although efficient in drip suppression, high molecular weight PTFE is difficult to handle and to dose into an extruder on an industrial scale. This new development in PTFE-based anti-dripping additives combines high dispersion efficiency with excellent powder flow and handling characteristics. Premature fibrillation and agglomeration are eliminated. The micro-fibrils formed by the PTFE component during the final processing of the plastic part create a physical network frozen into the plastic matrix that prevents the formation of drips that propagate a fire.
机译：PTFE与阻燃添加剂一起广泛用作阻燃聚合物配方中的防滴剂，以达到UL94 V-0或电气和电子应用所需的类似标准。尽管在抑制滴落方面是有效的，但是高分子量的PTFE难以在工业规模上处理和计量到挤出机中。 PTFE基抗滴剂的这一新发展将高分散效率与出色的粉末流动性和处理特性完美结合。消除了过早的原纤化和附聚。在塑料零件的最终加工过程中，由PTFE组分形成的微纤维形成了冻结在塑料基质中的物理网络，从而防止了形成液滴的蔓延，这种液滴会引起火灾。

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