Results 31 to 40 of about 10,080 (195)

A Critical Review of SCWG in the Context of Available Gasification Technologies for Plastic Waste

open access: yesApplied Sciences, 2020
End of life packaging is nowadays one of the major environmental problems due to its short usage time, the low biodegradability, and the big volume occupied. In this context, gasification is one of the most promising chemical recycling techniques.
Benedetta Ciuffi   +4 more
doaj   +1 more source

Cloud point temperature measurements on polyolefins

open access: yes, 2022
S.34-44Cloud point temperature measurements for linear polyethylene and isotactic polypropylene in 63 different solvents were used to identify solvents for polyolefins and determine the relative thermodynamic quality of these solvents.
Macko, Tibor   +2 more
core   +1 more source

Electron-rich dianion vacancies boost diazenide intermediates for efficient chemical looping ammonia synthesis

open access: yesNature Communications
Activating the nitrogen molecule under mild conditions remains a great challenge in ammonia synthesis. Electron-rich active sites are highly sought after to lower the activation barrier and enable efficient ammonia formation.
Jiaqi Wang   +14 more
doaj   +1 more source

High shear dispersion of tracers in polyolefins for improving their detection

open access: yesPolímeros, 2015
An efficient recycling of end-of-life products is of crucial interest from an economical and ecological point of view. However, the near infrared spectroscopy often used for the optic sorting processes is limited because of the absorption of carbon black
Valérie Massardier   +3 more
doaj   +1 more source

Commercial Marine-Degradable Polymers for Flexible Packaging

open access: yesiScience, 2020
Summary: Plastic pollution is entering the world's oceans at alarming rates and is expected to outweigh fish populations by 2050. This plastic waste originates from land-based applications, like consumer product packaging, and is composed of high ...
Amber Barron, Taylor D. Sparks
doaj   +1 more source

Chemical recycling: The silver bullet for plastic waste?

open access: yeseXPRESS Polymer Letters, 2022
editorial
Markus Gahleitner
doaj   +1 more source

Catalisadores metalocênicos: aspectos gerais e heterogeneização Metallocene catalysts: general aspects and heterogenization

open access: yesPolímeros, 1998
Este trabalho apresenta uma discussão sobre aspectos gerais da nova tecnologia de síntese de polímeros com microestrutura e propriedades controladas, obtidos via sistema catalítico metaloceno/MAO.
Maria de Fátima V. Marques   +3 more
doaj   +1 more source

ZrO2-catalyzed Hydrogenolysis of Polyolefins

open access: yes, 2023
GC Traces GC traces of catalysis products from ZrO2 catalyzed hydrogenolysis of polyolefins, as .csv and image files GPC Traces GPC traces of residual polymers remaining after ZrO2 catalyzed hydrogenolysis of polyolefins, as excel and image files NMR ...
Ryan A. Hackler (9183338)   +23 more
core   +1 more source

Biodegradable packaging materials based on low density polyethylene, starch and monoglycerides

open access: yesТонкие химические технологии, 2022
Objectives. To investigate the production and biological degradation of biodegradable hybrid compositions (BHCs), dispersed-filled with starch-containing products of various origins and distilled monoglycerides, along with the biodegradation of ...
I. Yu. Vasilyev   +2 more
doaj   +1 more source

Determination of Erucamide Slip Additive in Polypropylene Masterbatch: Comparison of Soxhlet and Dissolution-Precipitation Method [PDF]

open access: yesJournal of Pure and Applied Chemistry Research
Erucamide is a long-chain carboxylic acid amide used as a slip agent in plastic films. In this research, the slip additive in polypropylene masterbatch with 6% erucamide content was extracted by comparing two methods which are dissolution-precipitation ...
Eka L. Purwaningtyas   +7 more
doaj  

Home - About - Disclaimer - Privacy