Biodegradation of PP films modified with organic pro-degradant: natural ageing and biodegradation in soil in respirometric test
Journal Title: Polyolefins Journal - Year 2016, Vol 3, Issue 1
Abstract
In this study, PP films were modified with an organic pro-degradant in different concentrations (1, 2 and 3 wt.%), exposed in the first step of degradation to natural ageing for 100 days followed by biodegradation in simulated soil in the respirometric test for 100 days. At the end of the combined degradation process the PP samples were characterized according to their morphological and physical properties and the CO2 generated during the biodegradation in soil was monitored. The CO2 production by the PP films modified with the organic pro-degradant was proportional to the oxidation rate and weight loss of the samples. The reduction in the average viscosimetric molecular weight could be attributed to chain scission due to the weathering conditions to which the samples were exposed (natural ageing followed by biodegradation in soil). Scanning electron microscopy (SEM) of the PP films revealed surface deterioration of the films with the organic pro-degradant after the combined degradation process. Keywords
Authors and Affiliations
Larissa Montagna, Andre Luis Catto, Maria Madalena Forte, Ruth Marlene Santana
Keywords
Related Articles
- EP ID EP283170
- DOI 10.22063/POJ.2016.1279
- Views 123
- Downloads 0
Influence of annealing on anisotropic crystalline structure of HDPE cast films
High density polyethylene (HDPE) films were produced using cast film extrusion process with different draw ratios, ranging from 16.9 to 148.8. Morphology, crystallinty and orientation state of crystalline and amorphous p...
Embedding neat and carboxylated nanodiamonds into polypropylene membranes to enhance antifouling properties
The aim of the present work is to enhance the antifouling properties of polypropylene (PP) membrane based on hydrophilicity improvement. Different contents of neat and modifed nanodiamond (0.25, 0.50, 0.75 and 1.00 wt.%)...
Anti-fouling behaviors of surface functionalized high density polyethylene membrane in microfiltration of bovine serum albumin protein
An essential characteristic for high performance inherently hydrophobic membranes such as microporous high density polyethylene (HDPE) membranes is to have a hydrophilic surface. In this project, wet chemical functionali...
Electrical properties of UHMWPE/graphite nanoplates composites obtained by in-situ polymerization method
There are described nanocomposites based on ultra high molecular weight polyethylene and graphite nanoplates prepared by in-situ polymerization method. It is carried out a comprehensive study of electric properties of th...
The role of 1-hexene comonomer content in thermal behavior of medium density polyethylene (MDPE) synthesized using Phillips catalyst
In this work, the role of comonomer content of 1-hexene-medium density polyethylene (MDPE) copolymer, synthesized using Phillips catalyst, on thermal behavior parameters such as: crystallization, melting temperature and...