Ionomer
Ionomer
Shore hardness
Working temperature
Sterilization

Ethylene oxyde

Gamma ray
Approval

implantable < 30 days

Food contact
Assembly

Welding
Color and transparancy

: Ethylene oxyde
: Gamma ray
: Steam
: implantable > 30 days
: implantable < 30 days
: Food contact
: adhesive
: Welding
: Learn more
Ethylene oxyde
Gamma ray
implantable < 30 days
Food contact
Welding
Ethylene oxyde
Gamma ray
Steam
implantable < 30 days
Food contact
Welding
adhesive
Ethylene oxyde
Gamma ray
Food contact
Welding
adhesive
Ethylene oxyde
Gamma ray
Steam
implantable > 30 days
Welding
adhesive
Ethylene oxyde
implantable < 30 days
implantable > 30 days
Food contact
Welding
adhesive
Ethylene oxyde
implantable < 30 days
Food contact
Welding
adhesive
Ethylene oxyde
Gamma ray
Steam
implantable > 30 days
Food contact
Welding
Ethylene oxyde
Gamma ray
Steam
implantable > 30 days
Food contact
Welding
Description
Polyethylene is the simplest of all the polymers, being comprised solely of carbon and hydrogen. The molecule’s different types of branching yields structures of varying densities, ranging from high-density polyethylene (HDPE) (0,94 to 0,97 g/cm3) to low density polyethylene (LDPE) (0,915 to 0,935 g/cm3).
PE has a semi-crystalline structure; the fusion temperature of the crystalline phase ranges from 100°C to 135°C, while the glass transition temperature from the amorphous phase is Tg = – 106°C. The degree of crystallinity varies from 45% for LDPE to 85% for HDPE.
Reasons for Using PE
High chemical inertness
Excellent coefficient of friction (especially HDPE)
Biocompatibility
High impact strength
Limitations
Does not withstand high temperature (> 60°C)
Difficult to bond
Tends to creep, therefore poor elastic recovery
Not transparent
Examples of Uses
Sheaths and dilators for introducers
Coextruded perfusion tubing
Aspirator tips
Ethylene oxyde
Gamma ray
implantable > 30 days
Food contact
Welding
Description
Polyethylene is the simplest of all the polymers, being comprised solely of carbon and hydrogen. The molecule’s different types of branching yields structures of varying densities, ranging from high-density polyethylene (HDPE) (0,94 to 0,97 g/cm3) to low density polyethylene (LDPE) (0,915 to 0,935 g/cm3).
PE has a semi-crystalline structure; the fusion temperature of the crystalline phase ranges from 100°C to 135°C, while the glass transition temperature from the amorphous phase is Tg = – 106°C. The degree of crystallinity varies from 45% for LDPE to 85% for HDPE.
Reasons for Using PE
High chemical inertness
Excellent coefficient of friction (especially HDPE)
Biocompatibility
High impact strength
Limitations
Does not withstand high temperature (> 60°C)
Difficult to bond
Tends to creep, therefore poor elastic recovery
Not transparent
Examples of Uses
Sheaths and dilators for introducers
Coextruded perfusion tubing
Aspirator tips
: Ethylene oxyde
: Gamma ray
: Steam
: implantable > 30 days
: implantable < 30 days
: Food contact
: adhesive
: Welding
: Learn more