Polyols: Ibikoresho by'ibanze bikoreshwa mu nganda no mu baguzi
Amashami y'ingenzi yo gusaba
Mu nganda zikora imiti, polyols ni ibikoresho by'ingenzi mu gukora ibikoresho bifite uburemere buhanitse nka polyester, polyethers, na polyurethanes. Urugero, ethylene glycol ikoreshwa mu gukora polyethylene terephthalate (PET), ikoreshwa cyane mu macupa ya pulasitiki n'imigozi. Polyethylene glycol (PEG) ikoreshwa mu gukora ibintu bitandukanye bya surfactants n'amavuta. Byongeye kandi, polyols zishobora gukora nk'ibishongesha mu gushonga ibintu bitandukanye by'umwimerere, bikongera ubushobozi bwo gukora neza.
Mu nganda zikora imiti, polyols zikoreshwa cyane nk'ibintu bisukura, plastizeri, na humectants. Urugero, propylene glycol na glycerol bikunze gukoreshwa mu gutegura inshinge, ibinyobwa binyobwa, n'amavuta yo kwisiga kugira ngo imiti irusheho gushonga no kugumana ubusugire. Byongeye kandi, polyols zishobora gukoreshwa mu gukora imiti ikoreshwa mu kugenzura, ikagenzura igipimo cy'imiti isohoka.
Mu nganda z'ibiribwa, polyols zikoreshwa nk'ibiryo biryoha, ibinyabutabire, n'ibinyabutabire bigabanya ubushyuhe. Urugero, glycerol na polyethylene glycol bishobora gukoreshwa mu gukora ibiryo biryoshye, ibiryo bitetse, n'ibinyobwa, bigatuma birushaho kuryoha no kugumana ubushuhe. Byongeye kandi, polyols zishobora gukoreshwa mu guhindura imiterere n'uburyo ibiryo bikora mu kanwa, bigatuma igihe cyo kubibika kirushaho kuba kirekire.
Mu nganda zikora amavuta yo kwisiga no kwita ku ruhu, polyols zikoreshwa cyane nk'ibintu bigabanya ubushyuhe n'ibitera imbaraga. Urugero, propylene glycol na glycerol bishobora kwinjiza ubushuhe, bigatuma uruhu n'umusatsi bigumana amazi. Byongeye kandi, polyols zishobora gukoreshwa mu gukora imiti irinda izuba, shampoos, na conditioners, bigatanga uburyo bwo koroshya no gusiga amavuta.
Mu nganda za pulasitiki, polyol zikoreshwa nk'imashini zikoresha pulasitiki kugira ngo zongere ubushobozi bwo koroshya no gutunganya pulasitiki. Urugero, glycerol na polyethylene glycol bishobora gukoreshwa nk'imashini zikoresha pulasitiki kuri polyvinyl chloride (PVC), bikongera ubushobozi bwo koroshya no kuramba kwayo. Byongeye kandi, polyol zishobora gukoreshwa mu gukora plastiki zishobora kubora, bigagabanya ingaruka ku bidukikije.
Mu nganda zikora irangi n'inyi, polyol zikoreshwa nk'ibintu bishongesha ibintu n'ibinyabutabire. Zishobora gushonga ubwoko butandukanye bwa resins na pigment, bigatanga imiterere myiza yo gukora filime. Urugero, polyethylene glycol ishobora gukoreshwa mu gukora irangi n'inyi zishingiye ku mazi, zigatanga ibisubizo birengera ibidukikije kandi binoze.
Ibisobanuro
| Izina ry'igicuruzwa | Polyoli za Polyester | |||||||||
| Isura | Ikiyiko cyangwa ikintu gikomeye kidafite ibara cyangwa umuhondo woroshye | |||||||||
| Uburemere bwa molekile | 500-5000 g/mol | |||||||||
| Aho kubira | >200 | |||||||||
| Ubwiza | 98%,99.5% | |||||||||
| Ubucucike | 1.10-1.15 | |||||||||
| Kode y'Ubwishingizi bw'Ubuzima (HS) | 3907910000 | |||||||||
| Porogaramu | Irangi rya polyurethane, wino; inkweto, imitako, amapine | |||||||||
Urupapuro rwo kugenzura ubuziranenge
| Izina ry'igicuruzwa | Polyoli za Polyester | ||||||
| IGITEKEREZO | Igisanzwe | Ibisubizo | |||||
| Chroma (APHA) | ≤30 | 11 | |||||
| Ubushyuhe kuri 25℃ (mPas) | 1100-1500 | 1296 | |||||
| Ibipimo by'amazi (%) | ≤0.08 | 0.017 | |||||
| Agaciro ka Hydroxyl (mgKOH/g) | 32.5-35.5 | 34.2 | |||||
| Agaciro ka aside (meKOH/s) | ≤0.08 | 0.029 | |||||
| Agaciro ka pH | 5.0-7.5 | 6.7 | |||||
| K+ (mgkg) | ≤5 | 1.0 | |||||
| Umwanzuro | Abafite Impamyabushobozi | ||||||
Muri make
Muri make, polyols, nk'ibikoresho fatizo by'ingenzi bya organic chemical, bigira uruhare runini mu nganda nyinshi. Ntabwo byongera imikorere n'ubwiza bw'ibicuruzwa gusa, ahubwo binashyigikira iterambere ry'inganda zigezweho. Hamwe n'iterambere ry'ikoranabuhanga rihoraho, amahirwe yo gukoresha polyols azarushaho kuba manini.