Goodfellow PHB Biopolymer (PHB)

About
PHB and its copolymers with polyhydroxyvalerate (PHV) are melt-processable semi-crystalline thermoplastics made by biological fermentation from renewable carbohydrate feedstocks. They have been described as “the first example of a true thermoplastic from biotechnology” and are also biodegradeable. Although quite stable under everyday conditions they degrade slowly in the body and when composted or in landfill sites. [The HB monomer unit is a normal constituent of human blood.] Their chemical resistance is somewhat limited as they are attacked by acids and alkalis and dissolve in chlorinated solvents. Rather remarkably, they are optically active polymers with a chiral site in each molecular repeat unit, all of which are in the D- (or R) configuration. PHB homopolymer is a stiff and rather brittle polymer of high crystallinity, whose mechanical properties are not unlike those of polystyrene, though it is less brittle and more temperature resistant. Hence, copolymers are preferred for general purposes. It is believed that the most likely area for the application of homopolymer is in the medical/biological fields. Chemical Resistance: Acids – dilute Fair Alcohols – Fair Alkalis – Poor Greases and Oils – Good Resistance to Ultra-violet – Fair&&

About

PHB and its copolymers with polyhydroxyvalerate (PHV) are melt-processable semi-crystalline thermoplastics made by biological fermentation from renewable carbohydrate feedstocks. They have been described as “the first example of a true thermoplastic from biotechnology” and are also biodegradeable. Although quite stable under everyday conditions they degrade slowly in the body and when composted or in landfill sites. [The HB monomer unit is a normal constituent of human blood.] Their chemical resistance is somewhat limited as they are attacked by acids and alkalis and dissolve in chlorinated solvents. Rather remarkably, they are optically active polymers with a chiral site in each molecular repeat unit, all of which are in the D- (or R) configuration. PHB homopolymer is a stiff and rather brittle polymer of high crystallinity, whose mechanical properties are not unlike those of polystyrene, though it is less brittle and more temperature resistant. Hence, copolymers are preferred for general purposes. It is believed that the most likely area for the application of homopolymer is in the medical/biological fields. Chemical Resistance: Acids – dilute Fair Alcohols – Fair Alkalis – Poor Greases and Oils – Good Resistance to Ultra-violet – Fair&&

Product Description
Generic	生物可降解聚合物
Material Status	Commercial: Active
Features	Renewable resources,Gamma radiation,Hypocrystalline,Grease resistance,Heat Resistance, Good,Homopolymer
Availabilitys	North America,Europe
Process Methods	Injection Molding

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density	1.25	g/cm³

MECHANICAL	Nominal value	Unit
Tensile modulus	3500	MPa
tensile strength
yield	40.0	MPa

IMPACT	Nominal value	Unit	Test method
Impact strength of cantilever beam notch	35 to 60	J/m

THERMAL	Nominal value	Unit	Test method
Continuous use temperature	95.0	℃

Electrical performance	Nominal value	Unit
Volume resistivity	1.0E+16	ohms·cm
Dielectric strength
1e6	0.12	kV/mm

Notes
1. Typical properties: these are not to be construed as specifications.
【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.

Notes

1. Typical properties: these are not to be construed as specifications.

【 Disclaimer 】
Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.