Effect of reprocessing cycles on the degradation of PP/PBAT-thermoplastic starch blends

TA Oliveira, RR Oliveira, R Barbosa, JB Azevedo… - Carbohydrate …, 2017 - Elsevier
The solid waste management problems caused by the accumulation of plastics require
measures to mitigate the environmental damage, and mechanical recycling of plastics is …

In-line monitoring the degradation of polypropylene under multiple extrusions based on Raman spectroscopy

X Guo, Z Lin, Y Wang, Z He, M Wang, G ** - Polymers, 2019 - mdpi.com
Polymer degradation is a common problem in the extrusion process. In this work, Raman
spectroscopy, a robust, rapid, and non-destructive tool for in-line monitoring, was utilized to …

Influence of stabilization additive on rheological, thermal and mechanical properties of recycled polypropylene

M Mihelčič, A Oseli, M Huskić, L Slemenik Perše - Polymers, 2022 - mdpi.com
To decrease the amount of plastic waste, the use of recycling techniques become a
necessity. However, numerous recycling cycles result in the mechanical, thermal, and …

Study of the degradation profile for virgin linear low-density polyethylene (LLDPE) and polyolefin (PO) plastic waste blends

SM Al-Salem, MH Behbehani, A Al-Hazza'a… - Journal of Material …, 2019 - Springer
In this study, the properties of virgin linear low-density polyethylene (LLDPE) and its blends
with reclaimed plastic solid waste (PSW) are investigated by thermogravimetry, differential …

Effects of ultrahigh speed twin screw extrusion on the thermal and mechanical degradation of polystyrene

A Farahanchi, R Malloy… - Polymer Engineering & …, 2016 - Wiley Online Library
This article characterizes a novel twin screw extrusion (TSE) process with the capability of
rotating at speeds up to 4500 rpm. The resulting extreme high shear rate is expected to …

Kinetic and process modeling of thermal and mechanical degradation in ultrahigh speed twin screw extrusion

A Farahanchi, MJ Sobkowicz - Polymer Degradation and Stability, 2017 - Elsevier
In this article, a kinetic model is introduced in conjunction with experimental extrusion results
to predict the evolution of depolymerization reaction at various operating conditions during …

Microstructure–property relationships of organo-montmorillonite/polyurethane nanocomposites: Influence of hard segment content

S Taheri, GMM Sadeghi - Applied clay science, 2015 - Elsevier
A comprehensive study was made to correlate the microstructural nucleating effect of an
organically-modified montmorillonite with morphology, crystallinity, degree of phase …

[HTML][HTML] Facile engineering strategy to control polymer chain structure for enhanced dispersion, electrical and sensing properties of nanocomposites

MN Kim, H Lee, J Cho, MJ Oh, SH Kim, J Jang… - Composites Part A …, 2024 - Elsevier
Preventing the aggregation of nanofillers and inducing uniform filler dispersion are key
parameters for improving the electrical conductivity and sensing sensitivity of …

Measurement of material degradation in dependence of shear rate, temperature, and residence time

C Schall, V Schöppner - Polymer Engineering & Science, 2022 - Wiley Online Library
During processing, plastics are frequently exposed to high stresses. These include, above
all, shear and temperature within the scope of the residence time of the manufacturing …

Polypropylene copolymers

M Gahleitner, C Tranninger, P Doshev - … handbook: morphology, blends …, 2019 - Springer
The wide variety of copolymers of polypropylene (PP) is one of the key reasons for the
technical and commercial success of this polymer. While historically compounds with …