Thermoplastics

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Lindsay Shaw Photography- 0185Putnam Plastics is capable of extruding virtually all melt processed thermoplastic resins that can be extruded in natural or compounded forms, with additives to affect color, radiopacity, lubricity, anti-microbial and other properties.  Thermoplastics cover wide range of performance properties from rigid materials such as PEEK and polysulfones to flexible thermoplastic elastomers.

Thermoplastic elastomers combine some of the properties of rubber with the processing advantages of thermoplastics. Like rubbers, the thermoplastic elastomers key properties are hardness and stiffness or flexibility with the melt processing advantages inherent with thermoplastics. Thermoplastic urethanes and polyether block amides (PEBA) are perhaps the most commonly used thermoplastic elastomers in applications such as catheter tubing, balloons, wound dressings, surgical drapes, storage bags, strain reliefs, and numerous other medical device applications. These materials offer a good balance of tensile strength, toughness, elongation, kink-resistance, hydrolysis-resistance, and thermoplastic processability. Thermoplastic polyurethanes dominate the central venous catheter market and are used in some diagnostic and guiding catheter designs. Polyamides (also known as nylons) and polyamide block co‐polymers (PEBA) dominate the PTCA catheter market. They are the polymer of choice for balloon catheters and for stent delivery catheters.

Thermoplastic Material Property Comparison
Polymer Grade (Brand)  Tensile Strength (psi)  Flexural Modulus (psi) Shore Hardness
PEEK 450G (Victrex®) 14,500 595,000  
Polyimide   17,100 548,000  
Nylon 11 BESNO (Rilsan®) 10,290 213,000  
Nylon 12 L25 (Grilamid®) 10,150 241,000 74D
AESNO (Rilsan®) 7,832 245,000  
LF2101F (Vestamid®) 6,525 203,000  
PEBA 7233 (Pebax®) 8,120 106,000 72D
7033 (Pebax®) 7,830 56,600 69D
6333 (Pebax®) 7,685 42,100 63D
5533 (Pebax®) 7,540 23,200 55D
4033 (Pebax®) 5,800 12,200 42D
3533 (Pebax®) 5,650 3,630 33D
2533 (Pebax®) 4,640 2,180 25D
TPU EG 65D (Tecoflex®) 8,300 2,500 60D
EG 72D (Tecoflex®) 8,100 3,400 67D
EG 93A (Tecoflex®) 7,700 1,100 87A
2363 55D (Pellethane®) 6,900 24,900 55D
2363 65D (Pellethane®) 6,460 32,000 65D
2363 75D (Pellethane®) 5,810 189,000 75D
HDPE LR732 (Petrothene®) 4,000 181,000 67D
4903 (Marlex®) 3,900 169,800