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改良聚烯烃具有柔性PVC的特性,且无任何风险 - China Medical Device Manufacturer
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Fri, January 19th, 2018

2010年3月CMDM电子快讯 » 技术新知
改良聚烯烃具有柔性PVC的特性,且无任何风险

By: Shana Leonard

Dynamic Modifiers公司的热塑烯烃产品是PVC的同等无毒替代品。
多年来,由于柔性PVC中含有邻苯二甲酸酯增塑剂(例如DEHP)等有毒成分,因此,其在医疗领域的应用(例如输液袋和导管)逐渐减少。聚合物生产商随即提供了替代产品。然而,位于美国佐治亚州亚特兰大市的材料合成商Dynamic Modifiers公司(www.flexole.com)称,这些替代产品大大提高了成本或者事实上不完全具备柔性PVC的所有理想功能。公司利用这个机遇,开发出了一种热塑烯烃,号称是第一款具有价格竞争力、同等功能和外观且无毒的柔性PVC替代品。

公司总裁Howard Bradshaw解释说,由于柔性PVC是一种混合聚合物,在其中加入不同的添加剂能最终决定材料的柔性和阻燃性,“(柔性PVC)有很多不同形式和变化。你可以到技术图书馆找到配方,然后说:‘我想要一种具有这些特征的柔性PVC’,你可以真的找到它。但聚烯烃却不是这样。我们可利用聚烯烃加工成确实具有柔性PVC所有不同功能特性的产品。我们是唯一一家生产客户定制聚烯烃的公司,可以替代柔性PVC 用于各种终端领域。”

FlexOl品牌的客户定制聚烯烃不仅完全无毒、具有阻燃特性、加工简单、可循环利用,而且不含可移行至表面的增塑剂。改良材料还具有类似于柔性PVC的外观和触感,当然公司称客户认为一些FlexOl产品在外观上其实更出众。

Bradshaw同时又强调说,我们品牌的优势还在于定制能力。我们的化合物可提供任何定制颜色,硬度范围为50 至96,还可以加入添加剂以提升产品性能,例如具有抗菌能力。另据Bradshaw称,随着近期第二代产品的推出,公司还将价格点下降了20-25%。成本降低使得聚烯烃的价格与柔性PVC相当,他说这在以前是无法达到的。

与目前市场销售的一些其它替代产品相比,Dynamic Modifiers公司在定制和价格方面的改善让公司于去年11月在奥兰多摘取了2009年度R&D大奖。尽管该材料目前应用于环保型窗帘布纤维,但公司宣称它具有各种医疗应用潜力,包括导管、软管、连续正气压睡眠呼吸机及其它医疗设备。Bradshaw指出,“对于柔性PVC在目前的任何应用领域,FlexOl都有能力取代它。”

本文最初发表于《医疗产品制造新闻》(Medical Product Manufacturing News) 2010年1/2双月刊英文版上。

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