Polycarboxylate ether (PCE) is used as a superplasticizer for concrete in the construction industry.
Polycarboxylate ether (PCE) is used as a superplasticizer for concrete in the construction industry.
Polyester polyols are a group of compounds derived from dicarboxylic acids and polyhydroxy alcohols, which terminate in hydroxyl groups.
Polyesters are compounds that contain repeating ester groups in the main chain.
Polyols are long-chain compounds with polymeric structure ending in at least two hydroxyl groups. Depending on the number of OH groups in the molecule, they are called diols (2 hydroxyl groups), trioles (3 -OH groups), tetrols, etc. This group of compounds includes polyether polyols, also referred to as polyetherols, and polyester polyols.
Polyethylene glycols (PEG) are a group of synthetic ethylene oxide polymers. They are produced by means of condensation polymerisation.
Prepolymers are compounds that enable modifying of isocyanates with high molecular weight alcohols or other compounds with carboxyl or amine groups, to obtain the desired properties in the target system. The isocyanate prepolymers contain reactive NCO groups that react with hydroxyl or amine groups, resulting in chain extension and the formation of a finished material. They are characterized by the ability to regulate the content of free isocyanate groups (-NCO) as needed. Representatives of this group of compounds are prepolymers based on aromatic isocyanates (MDI, TDI) or aliphatic (IPDI, HDI, H12MDI etc.).