Khoom:

HPMA yog ib qho hnyav molecular polymeride, nrog qhov nruab nrab molecular hnyav 400-800. Tsis muaj tshuaj lom, soluble hauv dej, tshuaj lom neeg thiab thermal stability, decomposed kub saum 330 ℃. HPMA has obvious threshold effect under high temperature (350℃) and high pH（8.3）level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300℃ with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA tuaj yeem siv los ua cov khoom ntxiv rau cov cement.

Specification:

Cov khoom	Index
Qhov tshwm sim	daj ntseg daj rau umber pob tshab kua
Cov ntsiab lus ruaj khov,%	48.0 nqi
Bromine tus nqi, mg / g	50.0 max
pH (1% dej tov)	2.0-3.0
Qhov ceev (20 ℃), g / cm3³	1.18 min

Kev siv:

HPMA is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. HPMA Nws muaj qhov zoo scale inhibition (98%) thiab scale stripping zog. Thaum siv ua ke nrog zinc ntsev, nws tuaj yeem cuam tshuam cov pa roj carbon steel corrosion.