Polyether Polyols: Cov Khoom Siv Ua Haujlwm Zoo Rau Ntau Yam Kev Siv

Polyether polyols, cov khoom siv tseem ceeb rau kev tsim polyurethane, muaj cov ether bond hauv cov saw hlau tseem ceeb thiab ntau pawg hydroxyl ntawm qhov kawg lossis sab pawg. Lawv tau tsim los ntawm polyaddition ntawm cov initiators nrog ethylene oxide, thiab lwm yam, nyob rau hauv catalysis. Cov polyols no zoo heev hauv cov ntawv thov xws li lub tub yees thermal rwb thaiv tsev thiab lub tsev rwb thaiv tsev, tsim cov khoom lag luam nrog cov thermal conductivity qis thiab qhov ntev ruaj khov. Peb cov polyether polyols zoo pab koj tsim cov ntaub ntawv polyurethane ua tau zoo.

Tiv tauj peb

Cov Ntawv Thov Tseem Ceeb

Hauv kev lag luam txheej thiab nplaum, cov polyether resins muaj nqis heev rau lawv qhov yooj ywm thiab tiv taus dej. Lawv muab kev nplaum zoo heev, tiv taus huab cua, thiab yooj ywm rau cov txheej thiab nplaum, ua rau lawv siv dav hauv kev tsim kho, tsheb, thiab kev lag luam aerospace. Piv txwv li, hauv cov txheej tsheb, polyether resins txhim kho kev tiv taus chip thiab kev tiv taus tshuaj lom neeg. Hauv cov nplaum tsim kho, lawv ua kom ruaj khov mus sij hawm ntev hauv cov chaw noo noo.

Hauv cov sealant, polyether resins 'water thiab tshuaj lom neeg tsis kam ua rau lawv yog cov khoom siv sealing zoo tshaj plaws. Lawv tiv thaiv tau zoo kom tsis txhob muaj dej thiab tshuaj lom neeg nkag mus thiab siv dav hauv kev tiv thaiv dej hauv tsev, kaw cov yeeb nkab, thiab kaw cov khoom siv hluav taws xob. Polyether resin sealant kuj ua tau zoo hauv qhov kub qis, tswj tau qhov ua tau zoo ntawm kev kaw hauv huab cua hnyav.

Hauv cov elastomers, polyether resins yog siv los tsim cov thermoplastic elastomers (TPEs) uas muaj kev ua tau zoo. Cov ntaub ntawv no ua ke qhov elasticity ntawm roj hmab nrog rau qhov yooj yim ntawm kev ua cov yas thiab siv dav hauv khau, cov khoom ua si, cov khoom siv kho mob, thiab cov khoom siv hauv tsheb. Qhov yooj ywm thiab ruaj khov ntawm polyether resins ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau kev tsim cov elastomers uas muaj kev ua tau zoo.

Hauv kev lag luam hluav taws xob, cov polyether resins 'kev tiv thaiv tshuaj lom neeg thiab biocompatibility ua rau lawv zoo tagnrho rau kev ntim khoom hluav taws xob thiab cov ntaub ntawv rwb thaiv tsev. Lawv tiv thaiv cov khoom hluav taws xob los ntawm cov dej noo thiab tshuaj lom neeg xeb thaum muab kev rwb thaiv tsev hluav taws xob zoo. Polyether resins kuj tseem siv rau hauv kev tsim cov photoresists thiab cov nplaum hluav taws xob, ua tau raws li qhov xav tau siab ntawm kev lag luam hluav taws xob.

Hauv kev kho mob biomedical, polyether resins 'biompatibility thiab tshuaj lom neeg tsis kam ua rau lawv zoo tagnrho rau kev tsim cov khoom siv kho mob thiab cov ntaub so ntswg engineering scaffolds. Lawv tuaj yeem ua tau zoo los ntawm tib neeg cov ntaub so ntswg thaum muab lub zog kho tshuab thiab kev ua haujlwm ntev. Polyether resins kuj tseem siv los tsim cov tshuaj tso tawm, tswj cov nqi tso tawm ntawm cov tshuaj kom txhim kho cov txiaj ntsig kho mob.

Cov Lus Qhia Tshwj Xeeb

Lub Npe Khoom		Polyether Polyol
MF		C₂H₄O
Qhov tsos		Cov kua nplaum tsis muaj xim
Kev dawb huv		99.50%
CAS TSIS MUAJ		25322-69-4
Tus lej HS		2909499090
EINECS TSIS MUAJ		500-038-9
Daim Ntawv Thov		Kev tsim cov txaj pw, cov ua npuas ncauj rau lub rooj zaum, cov tub yees, cov laug cam rwb thaiv tsev, thiab lwm yam.

Daim Ntawv Tswj Xyuas Zoo

Lub Npe Khoom	Polyether Polyol
YAM KHOOM	TUS QAUV	TXHEEJ TXHEEM KEV NTSUAM XYUAS
Tus nqi hydroxyl (mgKOH / g)	GB/T 12008.3-2022	56.2 (PPG-2000)
Dej noo (%)	GB/T 22313-2008	0.03%
Qhov viscosity (25°C, mPa-s)	GB/T 12008.6-2022	450 (PPG-2000)
Tus nqi pH	GB/T 9724-2007	7.20%
Kev tsis saturation (meq/g)	GB/T 12008.8-2022	0.02

Hauv kev xaus lus

Nrog kev paub txog ib puag ncig thiab kev nce qib ntawm thev naus laus zis, cov txheej txheem tsim cov polyether resins tseem niaj hnub raug kho kom zoo. Kev tsim cov polyether resins niaj hnub siv cov txheej txheem tshuaj ntsuab los txo qhov cuam tshuam rau ib puag ncig. Tsis tas li ntawd, kev siv rov qab thiab kev lwj ntawm polyether resins tau raug txhim kho, ua rau lawv ua raws li cov kev xav tau kev txhim kho kom ruaj khov.
Hauv kev xaus, polyether resins, ua cov ntaub ntawv ua tau zoo, ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam vim lawv qhov kev ywj pheej zoo heev, kev tiv thaiv tshuaj lom neeg, thiab kev sib raug zoo ntawm biocompatibility. Nrog rau kev nce qib ntawm thev naus laus zis tas mus li, cov kev cia siab rau daim ntawv thov rau polyether resins yuav dav dua, muab kev txhawb nqa zoo rau kev txhim kho kev lag luam niaj hnub thiab biomedicine.