Polyether Polyols: Zvinhu Zvinoshanda Zvakanyanya Pakushandisa Zvakasiyana-siyana

Polyether polyols, zvinhu zvakakosha pakugadzira polyurethane, zvine ether bond muketani huru uye mapoka akawanda ehydroxyl kumagumo kana kudivi. Anoumbwa nekuwedzera kwevatangi ne ethylene oxide, nezvimwewo, pasi pe catalysis. Aya ma polyols anoshanda zvakanaka mukushandiswa senge firiji thermal insulation uye building insulation, achigadzira zvigadzirwa zvine thermal conductivity yakaderera uye saizi dzakagadzikana. Ma polyol edu e polyether emhando yepamusoro anokubatsira kugadzira zvinhu zve polyurethane zvinoshanda zvakanyanya.

Taura nesu

Minda mikuru yekushandisa

Muindasitiri yekupenda nekunamira, maresini epolyether anokosheswa zvikuru nekuda kwekuchinjika kwawo uye kuramba mvura. Anopa kunamira kwakanaka, kuramba mamiriro ekunze, uye kuchinjika kumaresini nekunamira, zvichiita kuti ashandiswe zvakanyanya muindasitiri yekuvaka, yemotokari, uye yendege. Semuenzaniso, mumaresini emotokari, maresini epolyether anowedzera kuramba kwetsvina uye kuramba makemikari. Mumasisini ekuvaka, anovimbisa kugadzikana kwenguva refu munzvimbo dzine hunyoro.

Muzvivharo, ma polyether resin uye kusapindirana kwemakemikari kunoita kuti zvive zvinhu zvakanaka zvekuvhara. Zvinodzivirira kupinda kwemvura nemakemikari zvinobudirira uye zvinoshandiswa zvakanyanya mukuvaka kudzivirira mvura, kuvhara mapaipi, uye kuvharira michina yemagetsi. Zvivharo zve polyether resin zvinoratidzawo kushanda zvakanaka pakupisa kwakaderera, zvichichengetedza kushanda zvakanaka kwekuvhara munzvimbo dzine mamiriro ekunze akaipisisa.

Muma elastomers, ma polyether resins anoshandiswa kugadzira ma high-performance thermoplastic elastomers (TPEs). Zvinhu izvi zvinosanganisa elasticity yerabha nekureruka kwekugadzirisa kwemapurasitiki uye zvinoshandiswa zvakanyanya mushangu, matoyi, zvishandiso zvekurapa, uye zvikamu zvemotokari. Kuchinjika uye kugara kwenguva refu kwema polyether resins kunoita kuti ive sarudzo yakanaka yekugadzira ma high-performance elastomers.

Muindasitiri yezvemagetsi, kusapindirana kwemakemikari uye kuenderana kwezvinhu zvema polyether resin zvinoita kuti zvive zvakanaka pakushandiswa kwezvemagetsi mukuvhara uye mukudzivirira kupisa. Anodzivirira zvikamu zvemagetsi kubva mukunyorova uye ngura yemakemikari ukuwo achipa kudzivirira kupisa kwakanaka kwemagetsi. Ma polyether resin anoshandiswawo mukugadzira ma photoresists nema electronic adhesives, zvichizadzisa zvinodiwa nemazvo muindasitiri yezvemagetsi.

Munyaya dzezvekurapa, kugona kwepolyether resin uye kuramba kushandiswa kwemakemikari kunoita kuti ive yakanaka pakugadzira zvishandiso zvekurapa uye ma tissue engineering scaffolds. Inogona kushivirirwa zvakanaka nenyama dzevanhu uku ichipa simba rinodiwa remakanika uye kugara kwenguva refu. Polyether resin inoshandiswawo kugadzira mishonga inotakura mishonga, ichidzora huwandu hwemishonga inoburitswa kuti iwedzere mhedzisiro yekurapa.

Magadzirirwo

Zita rechigadzirwa		Polyether Polyol
MF		C₂H₄O
Chitarisiko		Mvura ine viscous isina ruvara
Kuchena		99.50%
Nhamba yeCAS		25322-69-4
Kodhi yeHS		2909499090
EINECS Kwete		500-038-9
Kushandiswa		Kugadzirwa kwematiresi, sofa furo, mafiriji, mabhodhi ekudzivirira kupisa ekuvaka, nezvimwewo.

Pepa Rekudzora Hunhu

Zita rechigadzirwa	Polyether Polyol
CHINHU	ZVINOTAURWA	Mhedzisiro yeKuyedza
Kukosha kweHydroxyl (mgKOH/g)	GB/T 12008.3-2022	56.2 (PPG-2000)
Hunyoro (%)	GB/T 22313-2008	0.03%
Kusviba (25°C, mPa-s)	GB/T 12008.6-2022	450 (PPG-2000)
kukosha kwepH	GB/T 9724-2007	7.20%
Kusaguta (meq/g)	GB/T 12008.8-2022	0.02

Muchidimbu

Nekuwedzera kweruzivo rwezvakatipoteredza uye kufambira mberi kwetekinoroji, maitiro ekugadzira ma polyether resin ari kuramba achivandudzwa. Kugadzirwa kwemazuva ano kwe polyether resin kunoshandisa maitiro e green chemistry kuderedza kukanganisa kwezvakatipoteredza. Pamusoro pezvo, kugona kudzokororwa uye kuora kwezvipenyu kwe polyether resin kuri kuvandudzwa, zvichiita kuti zvienderane nezvinodiwa zvekusimudzira nharaunda.
Muchidimbu, ma polyether resin, sezvinhu zvinoshanda zvakanyanya, anoita basa guru mumaindasitiri akawanda nekuda kwekuchinjika kwawo kwakanaka, kusabatwa nemakemikari, uye kuenderana kwezvinhu zvipenyu. Nekufambira mberi kwetekinoroji, mikana yekushandisa ma polyether resin ichave yakakura, ichipa rutsigiro rwakasimba mukuvandudzwa kwemaindasitiri emazuva ano uye biomedicine.