Product Description

Polyether macromonomers are polycarboxylate superplasticizer monomers, which are the main raw materials for the synthesis of polycarboxylate high-performance superplasticizers. They can be divided into allyl polyoxyethylene ether (APEG), isopentenyl polyoxyethylene Vinyl ether (TPEG), methallyl polyoxyethylene ether (HPEG) ethylene glycol monovinyl polyethylene glycol ether (EPEG, 2*2 monomer), etc., among which TPEG and HPEG macromonomers occupy the largest domestic market. market ratio. The polyether macromonomer and the initiators such as ethylene glycol and fatty alcohol containing active hydrogen in the molecule undergo an addition polymerization reaction under the action of a catalyst. The main process includes nitrogen replacement, feeding, pre-reaction and reaction, aging, devolatilization , discharge, etc.