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Spontaneous efficient degradation of polyesters in soil by an enzyme@MOF platform [PDF]
Nature CommunicationsWaste plastics represent a serious and growing environmental problem. Whereas biodegradable polyesters such as polycaprolactone (PCL) and polylactic acid (PLA) offer a potential solution, their spontaneous degradation takes up to 3 years in the field ...
Jiaxin Cui +10 more
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Reactive Extrusion (REx): Using Chemistry and Engineering to Solve the Problem of Ocean Plastics
Engineering, 2022 Philippe H. Dubois
exaly +3 more sources
Applied Sciences, 2021 Plastic mechanical recycling is an attractive method for reducing the amounts of waste plastics. However, the alterations in the mechanical properties (degradation) in recycled plastics is a limitation to the material’s mechanical recycling.
Patchiya Phanthong +2 more
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Studies on the Extrusion of Plastics
Kobunshi Kagaku, 1959 押出機の所要動力の解析に関しては, 従来ニュートン材料を対象とする場合およびビンガム材料を対象とする場合が報告されている。本報では可塑化押出機の正味所要動力を, 溶融材料の流動特性を擬塑性として, 溶融区間のスクリュー溝部分に対する所要動力, 溶融区間のスクリュー山部分における所要動力, さらに従来まだ報告されていない固体輸送区間の所要動力, 中間帯 (可塑化区間) の所要動力に分けて理論解析した。またポリスチロールの押出工程の実例について数値計算を行ない, これらスクリュー各部の所要動力分布を計算し, これらの総和とスクリュー入力の実測値と比較してみたが, 両者がかなり近くなることが認められた。なお本報告は可塑化押出機の固体区間から, 可塑化区間 ...
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Features of cascading disk-gear extrusion of plastics
Вісник Національного технічного університету України «Київський політехнічний інститут імені Ігоря Сікорського»: Серія «Хімічна інженерія, екологія та ресурсозбереження», 2021 The relevant task of today is to improve the installations for thermostat extrusion, in order to increase the indicators of resource/energy efficiency.
Анастасія Миколаївна Ковба +2 more
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Plastics Recycling as a Part of Circular Economy
Chemical Engineering Transactions, 2021 This article describes the plastics recycling assessment based on a practical selection of waste plastic samples from a municipality in the Czech Republic. The assessment included classification, analysis of the composition and experimental investigation
Jirí Tochácek +5 more
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NUMERICAL SIMULATION OF THE DESIGN OF EXTRUSION PROCESS OF POLYMERIC MINI-TUBES [PDF]
Applied Computer Science, 2018 In this paper we represent a study reporting the numerical simulation of small-diameter pipes extrusion process. Polypropylene and low density polyethylene were chosen as plastics and a selected transverse head as a tool in the simulations.
Sebastian BIAŁASZ, Ramon PAMIES
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Manufacturing of a PET Filament from Recycled Material for Material Extrusion (MEX)
Recycling, 2022 Due to its low cost and easy use, the use of material extrusion (MEX) as an additive manufacturing (AM) technology has increased rapidly in recent years. However, this process mainly involves the processing of new plastics. Combining the MEX process with
Maximilian Bustos Seibert +4 more
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Temperature Control in Extrusion the Requirements for Temperature Control
Measurement + Control, 1968 The object of this paper is to try to analyse, and also to some extent to justify, the temperature control requirements of the screw extrusion process. This paper and the following paper on ‘Design Strategies for the Control of Temperature’ will, we hope,
D. Grant, P. Wilkinson
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Measurement: Sensors, 2022 The global plastics production has shown a rapid growth from 1.5 to 367 million metric tonnes from year 1950 to 2020, where it has been predicted that this growth rate might increase further within the next few decades.
Chamil Abeykoon
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