PCL

Plastic soil free resin Photo: Poly real (epsilon – caprolactone) Poly (caprolactone

Poly (caprolactone has good biodegradability, biocompatibility, and non-toxic,PCL is a semicrystalline polymer, by epsilon caprolactone with titanium catalyst, two or three hydroxyl ring opening polymerization initiator structure system for [CH2 – (CH2) 4 – COO] n polyester. Low molecular weight of colorless crystalline solid。

Low molecular weight of colorless crystalline solid. The melting point of 59 ~ 64 ℃, the glass transition temperature of 60 ℃. The structure of repeat unit has five nonpolar methylene – CH2 and a polar ester base – COO – – namely the Pn (COO – CH2CH2CH2CH2CH2CH2 -)

So in nature is broken down by microorganisms or enzymes, ester base structure. The end product of CO2 and H2O. Photo of the shape memory function mainly comes from materials within incomplete compatibility of two phase: keep molding products in the shape of a stationary phase and softening, hardening of the reversible change will happen with the temperature of the reversible phase.

Under the action of stationary phase in response to stress, will make the products back to the initial shape

PCL Product features:

biocompatibility

It has good compatibility with biological cells in the body, cells are grown by the base frame is normal, and can be degraded into CO2 and H2O.

biodegradability

In the soil and water environment, 6-12 month can be completely decomposed into CO2 and H2O.

Good compatibility

And PE, PP, ABS, AS, PC, PVAC, PVB, PVE, PA, natural rubber and so on each other very well.

Good solvent solubility

In a polar solvent, ketone and aromatic compounds dissolve well. Insoluble in n-hexane.

High crystallinity and low melting point

Tg for 60 ° C, very soft, has a great stretching; Its melting point for 60-63 ° C, can be formed at low temperature.