{"id":13474,"date":"2025-08-28T01:55:24","date_gmt":"2025-08-28T01:55:24","guid":{"rendered":"https:\/\/jieyatwinscrew.com\/?p=13474"},"modified":"2025-08-28T02:03:39","modified_gmt":"2025-08-28T02:03:39","slug":"reactive-extrusion-polymerization-in-the-extrusion-process","status":"publish","type":"post","link":"https:\/\/jieyatwinscrew.com\/ru\/blog\/reactive-extrusion-polymerization-in-the-extrusion-process\/","title":{"rendered":"\u0420\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u0430\u044f \u044d\u043a\u0441\u0442\u0440\u0443\u0437\u0438\u044f: \u043f\u043e\u043b\u0438\u043c\u0435\u0440\u0438\u0437\u0430\u0446\u0438\u044f \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u044d\u043a\u0441\u0442\u0440\u0443\u0437\u0438\u0438"},"content":{"rendered":"

Reactive extrusion is an innovative process that integrates traditional polymer extrusion with some type of reaction. Essentially, it elevates a typical extruder from just a melting and shaping instrument into a continuous chemical reactor. This approach permits the synthesis of new polymers, modification of the existing polymers, or the facilitation of some chemical reactions all inside the extruder barrel. Process steps involving separate, multi-step batch reactors are obsolete, as the process merges all steps into a single, continuous operation.<\/p>\n

The main idea is to obtain the mechanical energy of the extruder and its heating elements to initiate the required chemical changes. Raw materials, which can consist of polymers and monomers, additives or even some reagents, are loaded into a hopper where they are transported and subsequently mixed and melted under severe shear. The mechanical processes acting on the materials create some local heating and superb blending of the reactants, which is crucial for full and uniform reactions. The extruder barrel is divided into zones with controlled temperatures which provide the needed energy to start and sustain the desired reactions.<\/p>\n

This technique is useful for a broad range of chemical modifications. For instance, in polymerization, in which a polymer chain is formed from monomers, and graft reactions where side branches are added to the main polymer chain for modification, functionalization which entails modifying the polymer to improve its adhesion or compatibility by attaching pertaining chemical groups is also a widely used application. In addition, reactive extrusion is useful in cross-linking for improving thermal and mechanical strength. It is also useful in degradation control processes for a polymer’s molecular weight. This continuous approach to the process is advantageous for efficiency and energy usage in comparison to traditional batch methods.<\/p>\n

\n
\n

Table of Contents<\/p>\nToggle<\/span><\/path><\/svg><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n