Polyols: Piny ma jutiyo kudu pi tic mapol pi tic mi yiku piny man mi wil
Kabedo madongo mi tic
I tic mi kemikol, polyols ubedo piny ma pire tek pi yubu piny ma pek migi tek calu polyesters, polyethers, man polyurethanes. Ku lapor, ethylene glycol jutiyu kudu pi yubu polyethylene terephthalate (PET), ma jutiyo kudu lee i agulu man jamb tiyo kudu. Polyethylene glycol (PEG) jutiyu kudu pi yubu piny matung tung ma nyayu lyethu. Mi medo, polyols copo tiyo calu solvents mi nyayu piny matung tung, ma medo kero pa tic.
I tic mi yath, polyols jutiyu kudu lee calu solvents, plasticizers, man humectants. Ku lapor, propylene glycol ku glycerol jutiyu kudu pol kare i yiko yath, pii ma jumadhu, man moo pi medo kero pa yath man bedo maber. Mi medo, polyols jucopo tiyo kudu pi yubu yath ma jwigo, ma jwigo kadhiri pa yath.
I tic mi cam, polyols jutiyu kudu calu piny ma nyayu leng, piny ma nyayu pii, man piny ma nyayu lyethu. Ku lapor, glycerol ku polyethylene glycol jucopo tiyo kudu pi yiku jam tedo, jam tedo, man kongo, ma miyo leng man gwoko pii. Mi medo, polyols jucopo tiyo kudu pi loko kit ma cam winjere kudu, ma medo kwo pare.
I tic mi yubu adila man gwoko adila, polyols jutiyu kudu lee calu humectants man emulsifiers. Ku lapor, propylene glycol ku glycerol copo mako pii, ma weko adila man yuk wic bedo maleng. Mi medo, polyols jucopo tiyo kudu pi yiku jam gwoko kum ceng, jamb lwoko wic, man jamb lwoko kum, ma mio pii man jamb kum.
I tic mi plastik, polyols jutiyu kudu calu plasticizers mi medo yot pa plastik man tiyo kudu. Ku lapor, glycerol ku polyethylene glycol jucopo tiyo kudu calu plasticizers pi polyvinyl chloride (PVC), ma medo yot pa man tek pa polyvinyl chloride. Mi medo, polyols jucopo tiyo kudu pi yubu plastik ma nyai, ma dwoko piny peko pa kabedu.
I tic mi ketho rangi man inks, polyols jutiyu kudu calu solvents man emulsifiers. Gicopo nyayu kit resin man pigments matung tung, ma miyo bedo maber mi yubu filim. Ku lapor, polyethylene glycol jucopo tiyo kudu pi yiku jam umo man ink ma tiyo ku pii, ma mio kony maber man ma nyayu peko i kum ngom.
Lembe ma pire tek
| Nying piny | Polyester Polyols | |||||||||
| Lanyuth | Piny ma rangi ope ku yellow ma nyaleng nyo ma tek | |||||||||
| Pek pa molecule | 500-5000 g/mol | |||||||||
| Kabedo mi lyel | >200 | |||||||||
| Lengo | 98%,99.5% | |||||||||
| Pek | 1.10-1.15 | |||||||||
| HS Code | 3907910000 | |||||||||
| Ketho | Polyurethane coatings, inks; tyend wara, cing, taya | |||||||||
Karatasi mi gwoko ber pa piny
| Nying piny | Polyester Polyols | ||||||
| JAMI | Makoya | Adwogi | |||||
| Chroma(APHA) | ≤30 | 11 | |||||
| Viscosity at 25°C (mPas) | 1100-1500 | 1296 | |||||
| Piny ma nwang i iye (%) | ≤0.08 | 0.017 | |||||
| Hydroxyl Value(mgKOH/g) | 32.5-35.5 | 34.2 | |||||
| Wel pa asidi (meKOH/s) | ≤0.08 | 0.029 | |||||
| pH Value | 5.0-7.5 | 6.7 | |||||
| K+(mgkg) | ≤5 | 1.0 | |||||
| Ajiki | Mapore | ||||||
I thum pa lembe
I ayi ma kicoko, polyols, calu piny ma pire tek ma jutiyo kudu pi kwo, timo tic ma pire tek i tic matung tung. Gi medo ngo tic pa piny man ber pa piny kende ento gikonyo bende dongo pa tic mi kare eni. Ku dongo dongo mi ryeko, yore mi tic ku polyols bibedo malac.