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ABIN DAVIS 
BIBIN PAUL 
JAYALAL R 
CBPST, COCHI
BIOPOLYMER 
 Biopolymers refers to the material that are either 
biodegradablederived renewable and non renewable 
resources(according to ASTM D 6400 99 & EN 13432) or the materials 
are non biodegradable and derived from renewable resources(ASTM D 
6866) 
 Biopolymers can be divided into to two main 
groups . One group contains the biodegradable 
polyesters, which are petroleum based, but they are 
biodegradable. The other group contains polymers 
from renewable resources, like thermoplastic starch 
or poly-lactic-acid (PLA). Both TPS and PLA can 
be produced from common, natural resource, and 
they are readily biodegradable. 
 Biodegradable polymers are defined as those that undergo 
microbially induced chain scission leading to the 
mineralization.
POLY LACTIC ACID (PLA) 
Polylactic acid or polylactide (PLA) is a thermoplastic aliphatic 
polyester derived from renewable resources, such as corn 
starch , tapioca roots, chips or starch or sugarcane . In 2010, PLA 
was the second most important bio plastic of the world in regard to 
consumption volume. 
PLA has a crystalline of around 37%, a glass transition 
temperature between 60-65 °C, a melting temperature 
between 173-178 °C and a tensile modulus between 2.7- 
16 GPa
Processing condition for PLA
APPLICATIONS
STARCH 
The glycerol and water plasticized starch was 
processed in a twin screw extruder and then with 
an injection moulding machine to produce TPS 
products. 
Starch has a granular structure, 
which is built by two main carbohydrate polymers: 
the linear amylose and the highly branched 
amylopectin. 
Plasticizers like glycerol or water have to be 
used while processing, because of the low decomposition 
temperature of the granular starch.
APPLICATIONS
Poly (butylene succinate)
INJECTION MOULDING OF 
POLY(HYDROXYBUTYRATE)
COMMERCIALLY AVAILABLE BIOPOLYMERS WITH PROCESSING 
TEMPERATURE
THANK YOU….. 
S TUDYWELL…..
INJECTION MOLDING PROCESS FOR BIOPOLYMERS
INJECTION MOLDING PROCESS FOR BIOPOLYMERS

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INJECTION MOLDING PROCESS FOR BIOPOLYMERS

  • 1. ABIN DAVIS BIBIN PAUL JAYALAL R CBPST, COCHI
  • 2. BIOPOLYMER  Biopolymers refers to the material that are either biodegradablederived renewable and non renewable resources(according to ASTM D 6400 99 & EN 13432) or the materials are non biodegradable and derived from renewable resources(ASTM D 6866)  Biopolymers can be divided into to two main groups . One group contains the biodegradable polyesters, which are petroleum based, but they are biodegradable. The other group contains polymers from renewable resources, like thermoplastic starch or poly-lactic-acid (PLA). Both TPS and PLA can be produced from common, natural resource, and they are readily biodegradable.  Biodegradable polymers are defined as those that undergo microbially induced chain scission leading to the mineralization.
  • 3. POLY LACTIC ACID (PLA) Polylactic acid or polylactide (PLA) is a thermoplastic aliphatic polyester derived from renewable resources, such as corn starch , tapioca roots, chips or starch or sugarcane . In 2010, PLA was the second most important bio plastic of the world in regard to consumption volume. PLA has a crystalline of around 37%, a glass transition temperature between 60-65 °C, a melting temperature between 173-178 °C and a tensile modulus between 2.7- 16 GPa
  • 6. STARCH The glycerol and water plasticized starch was processed in a twin screw extruder and then with an injection moulding machine to produce TPS products. Starch has a granular structure, which is built by two main carbohydrate polymers: the linear amylose and the highly branched amylopectin. Plasticizers like glycerol or water have to be used while processing, because of the low decomposition temperature of the granular starch.
  • 7.
  • 8.
  • 11. INJECTION MOULDING OF POLY(HYDROXYBUTYRATE)
  • 12. COMMERCIALLY AVAILABLE BIOPOLYMERS WITH PROCESSING TEMPERATURE
  • 13. THANK YOU….. S TUDYWELL…..