Aliphatic polyether-based thermoplastic polyurethanes

Aliphatic polyether-based thermoplastic polyurethanes

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Product Description

Products are medical grade aliphatic polyether-based thermoplastic polyurethanes (TPUs). They exhibit excellent biocompatibility, hydrolytic resistance, good mechanical properties and chemical resistance, and can be color-matched. These products can be injection molded and extruded.

Test Item	Test Method	Unit	Test Result
Material			Polyether ( red )
Density	GB/T533	g/cm³	0.18-0.19
Particle diameter	Vernier caliper	length-diameter,width-diameter(mm)	3-7mm(adjustable)
Yellowing resistance	HG/T3689	grade	≥4
Bulk density	Graduated flask	g/L	100-110
DIN abrasion	GB/T9867	mm3	90
Resilience	GB/T1681		≥60%
Hardness	HG/T2489-93	Shore C	35-40
Folding endurance	Folded 120,000 times at room temperature		No crack growth
Water shrinkage rate	(According to the technic and mould used)		≤2.2%