Preparation of Biodegradable Materials by Reactive Extrusion

被引：5

作者：

Moura, I. ^{[1
]}

Machado, A. V. ^{[1
]}

Duarte, F. M. ^{[1
]}

Botelho, G. ^{[2
]}

Nogueira, R. ^{[3
]}

机构：

[1] Univ Minho, IPC, P-4800058 Guimaraes, Portugal

[2] Univ Minho, centro Quimica, P-4710057 Braga, Portugal

[3] Univ Minho, Centro Engenharia Biol, P-4710057 Braga, Portugal

来源：

ADVANCED MATERIALS FORUM IV | 2008年 / 587-588卷

关键词：

Biodegradable materials; Blends; PCL; PLA;

D O I：

10.4028/www.scientific.net/MSF.587-588.520

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work aimed to prepare biodegradable polymeric materials based on blends of a synthetic high density polyethylene (HDPE) and biodegradable polymers such as polylactic acid (PCL) and poly(caprolactone) (PLA). in a co-rotating twin-screw extruder. A polyethylene modified with malcic anhydride was used as compatibiliser. The mechanical results showed that the addition of PLA improves the blends stiffness while the addition of PCL leads to materials with a greater elongation at break and a lower Young modulus. This feature is related with the mechanical properties of each material as well as the adhesion between them. Concerning the biodegradability tests, it was found that HDPE/PCL blend presents the highest degree of biodegradability.

引用

页码：520 / +

页数：2

共 7 条

[1] LDPE/plasticized starch blends containing PE-g-MA copolymer as compatibilizer [J].