devolatilization - 百度百科
网页devolatilization，英语单词，主要用作名词，作名词时译为“液化作用；脱挥发份作用”。
Polymer devolatilization - Wikipedia
网页Polymer devolatilization, also known as polymer degassing, is the process of removing low-molecular-weight components such as residual monomers, solvents, reaction by-products and water from polymers.
Devolatilization - an overview | ScienceDirect Topics
网页Devolatilization is a process where volatile materials are removed directly from the extruder during the melt extrusion of the polymer. Devolatilization can be used to increase the molecular weight of a polymer as during continuous condensation polymerizations, to dewater polymer slurry formed in a continuous polymerization process, to remove ...
Demystifying the Devolatilization Process | Plastics Technology
网页2020年8月17日 · Devolatilization is the process by which unreacted monomer, solvent, water, dissolved gases, or other undesirable volatile contaminants are removed from a polymer melt or solution. It is a mass-transfer process driven by a combination of thermodynamic and diffusional variables, with the design of the machine impacting both of these parameters.
Devolatilisation Process - an overview | ScienceDirect Topics
网页Devolatilization is a thermochemical degradation process that occurs by definition in the absence of oxygen. While tar and permanent gases are formed and leave the wood log via the pores, oxygen can only enter the wood log via diffusion, since these gas compounds build up a convective barrier to inflow.
热裂解 - 维基百科，自由的百科全书
网页热裂解另一术语为脱挥发分（devolatilization）或去揮發作用，简称“脱挥”。 热解与 干馏 及烷烃的 裂化反应 有相似之处，同属于 熱分解反應 （ 英语 ： Thermal decomposition ） ；但由於細部的差異與專門用途的不同，因此有不同的稱呼，如干馏、 破坏蒸馏 （ 英语 ...
网页Devolatil-ization is a common process task in many polymer producing and compounding operations. Depending on the process small (< 0.2 %) to large amounts (ca. 50 %) of volatiles have to be removed from the polymer melt rsp. solution or the solid polymer pellet. Required resid-ual volatile levels depend on type and application of polymer.
Devolatilization of Polypropylene Particles in Fluidized Bed - MDPI
网页2023年8月31日 · The devolatilization of polypropylene (a key compound of plastic waste) has been investigated experimentally in a bench-scale fluidized bed reactor. Experimental tests were carried out by varying two key parameters of the process—the size of the polypropylene spheres (8–12 mm) and temperature (650–850 °C).
Devolatilization of Polymers by Diffusion and Foaming
网页Devolatilization is a key step in polymer processing. Low-molecular-weight components are removed from a polymeric system. The transport of these components takes place by diffusion to the polymer-vapor interface. This interface can be formed by free surfaces of single-phase polymer melts or by bubbles.
Devolatilization of Biomass Fuels and Biomass Components Studied …
网页2006年5月24日 · In this work, the devolatilization of biomass fuels (of different origin, properties, and composition) and biomass components is studied coupling thermogravimetric (TG) analysis with infrared spectroscopy. The characteristic temperatures are determined for the main devolatilization steps and compared for all fuels.