Title of article :
Preparation and properties of blends composed of lignosulfonated layered double hydroxide/plasticized starch and thermoplastics
Author/Authors :
Privas، نويسنده , , Edwige and Leroux، نويسنده , , Fabrice and Navard، نويسنده , , Patrick، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
10
From page :
91
To page :
100
Abstract :
Layered double hydroxide prepared with lignosulfonate (LDH/LS) can be easily dispersed down to the nanometric scale in thermoplastic starch, at concentration of 1 up to 4 wt% of LDH/LS. They can thus be used as a bio-based reinforcing agent of thermoplastic starch. Incorporation of LDH/LS in starch must be done using LDH/LS slurry instead of powder on order to avoid secondary particles aggregation, the water of the paste being used as the starch plasticizer. This reinforced starch was used for preparing a starch–polyolefine composite. LDH/LS–starch nanocomposites were mixed in a random terpolymer of ethylene, butyl acrylate (6%) and maleic anhydride (3%) at concentrations of 20 wt% and 40 wt%. With a 20% loading of (1 wt% LDH/LS in thermoplastic starch), the ternary copolymer is partially bio-based while keeping nearly its original processability and mechanical properties and improving oxygen barrier properties. The use of layered double hydroxides is also removing most odours linked to the lignin phase.
Keywords :
Lignosulfonate , Starch , Polyethylene , Nanocomposite , polymer blend , Layered double hydroxide
Journal title :
CARBOHYDRATE POLYMERS
Serial Year :
2013
Journal title :
CARBOHYDRATE POLYMERS
Record number :
1624801
Link To Document :
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