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非邻苯二甲酸酯类TPU符合医用标准 - China Medical Device Manufacturer
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Fri, January 19th, 2018

2008年10月CMDM电子快讯 » 技术新知
非邻苯二甲酸酯类TPU符合医用标准

New England Urethane 公司(美国康涅狄格州, North Haven; www.neuinc.com)开发出一种不含增塑剂、质地柔软且易拉伸的热塑性聚亚安酯 (TPU) 。该材料 800% 的垂直伸展率、硬度及拉伸强度使其适合作为挤压加工诸如膝盖手术中所用的薄壁管的材料。 该 公司生产的 Neuthane 柔软级 N8511 H 系列 TPU 合金的伸展特性可以使不同尺寸的设备都能嵌入模塑管产品中。

由于材料配方的差异,这种柔软级 TPU 的硬度在65至75 Shore A之间。复合材料在生产过程中经过快速结晶处理,因此能具备类似于塑化TPU的模塑特性,且不含有邻苯二甲酸酯。由于邻苯二甲酸酯具有易变特性,且在多重注塑过程中易对ABS 和聚碳酸盐造成影响,所以可引发一系列的问题。该材料无粘性、具有良好的透明度。而且可以少量供货。


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