Polyether Polyols amapangidwa pochita organic oxide ndi glycol.

Ma organic oxide omwe amagwiritsidwa ntchito kwambiri ndi Ethylene Oxide, Propylene Oxide, Butylene Oxide, Epichlorohydrin.

Ma glycols akuluakulu omwe amagwiritsidwa ntchito ndi Ethylene Glycol, Propylene Glycol, Madzi, Glycerine, Sorbitol, Sucrose, THME.

Ma polyols amakhala ndi magulu a reactive hydroxyl (OH) omwe amalumikizana ndi magulu a isocyanate (NCO) pa isocyanates kupanga polyurethanes.

Pali mitundu yambiri ya polyether polyols ya polyurethane.Zida za PU zokhala ndi magwiridwe antchito osiyanasiyana zitha kupezeka ndi zomwe zimachitika pakati pa oyambitsa osiyanasiyana ndi olefin polymerization.

Mwa kusintha zida za PU kapena kusintha chothandizira, magwiridwe antchito a polyether amatha kusinthidwa.Oyambitsa awa akuphatikizapo diethyl mowa, ternary alcohol, tetrahydrofuran, ndi onunkhira polyether polyols, etc.

AMAGWIRITSA NTCHITO

Kugwiritsa ntchito polyether komwe kumagwiritsidwa ntchito mu PU ndikoposa 80%.Polyether polyurethane ikhoza kugawidwa m'magulu

Polyether Polyol (PPG),

Polymeric Polyol (POP),

Polytetramethylene ether glycol (PTMEG, yotchedwanso polytetrahydrofuran polyol) malinga ndi woyambitsa.

Ma polyether polyols amagwiritsidwa ntchito kwambiri mu thovu lolimba la PU, thovu lofewa, ndi zinthu zopangira thovu.

Chidziwitso:Zina mwazinthu / zithunzi zomwe zili m'nkhaniyi zikuchokera pa intaneti, ndipo gwero ladziwika.Amangogwiritsidwa ntchito kufotokoza mfundo kapena malingaliro omwe afotokozedwa m'nkhaniyi.Amangolankhulana ndi kuphunzira, ndipo sizinthu zina zamalonda.Ngati pali kuphwanya kulikonse, chonde titumizireni kuti tichotse nthawi yomweyo.