Question

What are the main components of polyether defoamer GP-330?

Answer
2026-05-27 官方文档 聚醚消泡剂GP-330

The main component of polyether defoamer GP-330 is glycerol polypropylene ether (glycerol polyoxypropylene ether)

Chemical Composition

According to the product database of Guoli Chemical, GP-330 is a nonionic surfactant, with the chemical name glycerol polypropylene ether, CAS number 68439-50-9, molecular formula RO(C2H4O)x(C3H6O)yH (R=C12-14 alkyl), average molecular weight of about 3000. It is a polyether polyol defoamer produced by block copolymerization of propylene oxide (PO) and ethylene oxide (EO) using glycerol as the starter.

Key Parameters

ParameterValue
Full NameC12-14 fatty alcohol polyoxyethylene polyoxypropylene ether
Ionic TypeNonionic
HLB Value1
Hydroxyl Value54.5~58.5 mg KOH/g
AppearanceColorless to slightly yellow transparent liquid
Active Content20%~100% (depending on specification)
Cloud Point≤20°C (1% aqueous dispersion)
> **Data Source**: Product Database of Hai'an County Guoli Chemical Co., Ltd.