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Goodfellow Polyhydroxybutyrate/Polyhydroxyvalerate (PHB 88/PHV 12)

Category Polymer , Renewable/Recycled Polymer , Thermoplastic
Manufacturer Goodfellow
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Goodfellow Polyhydroxybutyrate/Polyhydroxyvalerate (PHB 88/PHV 12).pdf
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Material Notes:
See also PHB. PHB/PHV copolymers are used in preference to PHB homopolymer for general purposes (e.g. molding containers) in order to obtain a better balance of stiffness and toughness. PHV contents of 5 - 20% give a useful range of properties broadly similar to those of the polyolefins (the polyethylenes and polypropylene). They melt at lower temperatures than the homopolymer, giving a useful improvement in melt-processability. Their other properties are similar to those of PHB.They are being used for biodegradable containers (of which shampoo bottles are the most high-profile example) and other articles difficult to recycle e.g. disposable razors or medically contaminated articles.Information provided by Goodfellow.
Physical Properties Metric English Comments
Density 1.25 g/cc
0.0452 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Yield 23.0 MPa
3340 psi
Elongation at Break 35 %
35 %
Tensile Modulus 0.500 GPa
72.5 ksi
Izod Impact, Unnotched 2.00 J/cm
3.75 ft-lb/in
Notch Status Unknown
Thermal Properties Metric English Comments
Specific Heat Capacity 1.40 J/g-°C
0.335 BTU/lb-°F
Thermal Conductivity 0.150 W/m-K
1.04 BTU-in/hr-ft²-°F
Electrical Properties Metric English Comments
Electrical Resistivity 1.00e+16 ohm-cm
1.00e+16 ohm-cm
Dielectric Constant 3.0

@Frequency 1e+6 Hz
3.0

@Frequency 1e+6 Hz
Descriptive Properties Value Comments
Chemical Resistance - Alcohols Fair
Chemical Resistance - Alkalis Poor
Chemical Resistance - Dilute Acids Fair
Chemical Resistance - Greases and Oils Good
Resistance to Ultra-Violet Fair
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