ISOTHERMAL CRYSTALLIZATION BEHAVIOR AND UNIQUE BANDED SPHERULITES OF HYDROXYAPATITE/POLY(L-LACTIDE) NANOCOMPOSITES

Jun-chao Wei a; b; Jing-ru Sun a; Hai-juan Wang a; Xue-si Chen a

doi:10.1007/s10118-010-9060-7

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ISOTHERMAL CRYSTALLIZATION BEHAVIOR AND UNIQUE BANDED SPHERULITES OF HYDROXYAPATITE/POLY(L-LACTIDE) NANOCOMPOSITES

Papers | Updated：2021-06-21

- ISOTHERMAL CRYSTALLIZATION BEHAVIOR AND UNIQUE BANDED SPHERULITES OF HYDROXYAPATITE/POLY(L-LACTIDE) NANOCOMPOSITES
- Vol. 28, Issue 4, Pages: 499-507(2010)
- Affiliations：
- Author bio：
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- DOI：10.1007/s10118-010-9060-7
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- Published：20 July 2010
- Accepted：
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Jun-chao Wei a, b, Jing-ru Sun a, et al. ISOTHERMAL CRYSTALLIZATION BEHAVIOR AND UNIQUE BANDED SPHERULITES OF HYDROXYAPATITE/POLY(L-LACTIDE) NANOCOMPOSITES[J]. 2010, 28(4): 499-507.
DOI：

Jun-chao Wei a, b, Jing-ru Sun a, et al. ISOTHERMAL CRYSTALLIZATION BEHAVIOR AND UNIQUE BANDED SPHERULITES OF HYDROXYAPATITE/POLY(L-LACTIDE) NANOCOMPOSITES[J]. 2010, 28(4): 499-507. DOI： 10.1007/s10118-010-9060-7.

摘要

Hydroxyapatite/poly(L-lactide) (HA/PLLA) nanocomposites were prepared by the solvent mixing method. The isothermal crystallization behavior was studied by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). The results show that the crystallization behavior of HA/PLLA composites was strongly affected by the content of HA and crystallization temperature

and the addition of HA could promote nucleation and enhance the crystallization rate. When isothermal crystallization was carried out at 110°C

the HA/PLLA nanocomposite with 1% HA content crystallized most rapidly among all the composites and the half crystallization time was only 1.0 min. Banded spherulites were observed for the HA/PLLA composites

but no banded spherulites were seen in the crystals of PLLA under the same condition.

Abstract

and the addition of HA could promote nucleation and enhance the crystallization rate. When isothermal crystallization was carried out at 110°C

but no banded spherulites were seen in the crystals of PLLA under the same condition.

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