Polyols: Matières premières multi-usage mpo na ba applications industrielles mpe ya ba consommateurs
Bitando minene ya kosalela
Na industrie chimique, ba polyols ezali ba matières premières ya ntina pona kobimisa ba matières ya poids moléculaire ya likolo lokola ba polyesters, ba polyéthers, na ba polyuréthanes. Na ndakisa, basalelaka éthylène glycol mpo na kobimisa polyéthylène téréphthalate (PET), oyo basalelaka mingi na milangi ya plastiki mpe na bansinga. Polyéthylène glycol (PEG) esalelamaka mpo na kobimisa ba surfactants mpe ba lubrifiants ndenge na ndenge. En plus, ba polyols ekoki kosala lokola ba solvants pona ko dissoudre ba composés organiques ndenge na ndenge, ko améliorer efficacité ya réaction.
Na mosala ya kosala bankisi, basalelaka mingi ba polyols lokola ba solvants, ba plastifiants, mpe ba humectants. Na ndakisa, basalelaka mingi propylène glycol mpe glycérol mpo na kobongisa bankisi, mai oyo bamɛlaka na monɔkɔ mpe mafuta mpo na kobongisa ndenge oyo nkisi ekoki kopɔla mpe ezala makasi. Longola yango, bakoki kosalela ba polyols mpo na kobimisa bankisi oyo ekoki kobimisama na ndenge oyo ekoki kopekisa yango, mpe yango ebongisi ndenge oyo bankisi ebimisaka.
Na mombongo ya bilei, basalelaka ba polyols lokola biloko oyo ekómisaka elɛngi, biloko oyo epɛtolaka mai mpe biloko oyo elɛmbisaka nzoto. Na ndakisa, glycérol mpe polyéthylène glycol ekoki kosalelama mpo na kosala biloko ya sukali, biloko ya kotumba mpe masanga, mpe yango epesaka elɛngi mpe ekangama na mai. Longola yango, bakoki kosalela ba polyols mpo na kobongisa ndenge oyo bilei ezalaka mpe ndenge oyo bilei ezalaka monɔkɔ, mpe yango eumelaka mingi.
Na mombongo ya biloko ya kobongisa nzoto mpe ya kobatela loposo, basalelaka mingi ba polyols lokola biloko oyo epelisaka mai mpe emulsionnants. Na ndakisa, propylène glycol mpe glycérol ekoki kozwa mai, mpe kosala ete loposo mpe nsuki ezala na mai mingi. Longola yango, bakoki kosalela ba polyols mpo na kobimisa biloko oyo epekisaka moi, ba shampoing mpe ba conditionneurs, mpe epesaka biloko oyo ekómisaka mai mpe ya kopakola mafuta.
Na industrie ya ba plastiques, ba polyols esalelamaka lokola ba plastifiants pona ko améliorer flexibilité pe traitement ya ba plastiques. Na ndakisa, glycérol mpe polyéthylène glycol ekoki kosalelama lokola ba plastifiants mpo na chlorure polyvinyle (PVC), kobongisa flexibilité na yango mpe koumela. Longola yango, bakoki kosalela ba polyols mpo na kobimisa baplastiki oyo ekoki kobeba na biloko oyo ezali na bomoi, mpe yango ekoki kokitisa bopusi ya ezingelo.
Na mosala ya kosala ba revêtements mpe ya encre, basalelaka ba polyols lokola ba solvants mpe ba émulsionneurs. Bakoki kosilisa ba résines mpe ba pigments ndenge na ndenge, mpe epesaka bizaleli malamu ya kosala film. Na ndakisa, polyéthylène glycol ekoki kosalelama mpo na kobimisa biloko oyo ekɔtisaka mai mpe encre, mpe epesaka ba solutions oyo ekobebisa te ezingelo mpe oyo esalaka malamu.
Makambo oyo etali yango
| Kombo ya Biloko | Ba Polyoles ya Polyester | |||||||||
| Komonana | Liquide to solide visqueux sans couleur to jaune clair | |||||||||
| Kilo ya Molekile | 500-5000 g/mol | |||||||||
| Point d’ébullition | >200 | |||||||||
| Bopeto | 98%,99,5% Ezali na ba . | |||||||||
| Kotonda | 1.10-1.15 | |||||||||
| Code ya HS | 3907910000. Ezali na ntina mingi | |||||||||
| Ndenge ya kosalela | Ba revêtements ya polyuréthane, ba encres; sol ya sapato, ba joints, ba pneus | |||||||||
Fiche ya Contrôle ya Qualité
| Kombo ya Biloko | Ba Polyoles ya Polyester | ||||||
| ELOKO | Ya malamu | Mbano | |||||
| Chroma(APHA) ya . | ≤30 | 11. Ezali na ntina te | |||||
| Viscosité na 25°C (mPas) . | 1100-1500 na mokolo ya 1100 | 1296. Ezali na ntina te | |||||
| Bozangi ya Mai(%) . | ≤0,08 | 0,017 | |||||
| Valeur ya hydroxyle(mgKOH/g) . | 32.5-35,5 | 34.2 | |||||
| Valeur ya Acide(meKOH/s) . | ≤0,08 | 0,029 | |||||
| Valeur ya pH | 5.0-7.5 | 6.7 | |||||
| K+(mgkg) mpe . | ≤5 | 1.0 | |||||
| Maloba ya nsuka | Bazali na makoki | ||||||
Na bokuse
Na bokuse, ba polyols, lokola ba matières premières chimiques organiques ya ntina, ezali na rôle ya ntina na ba industries ebele. Bazali kaka te kotombola performance ya produit mpe qualité, kasi mpe kosunga bokoli ya industrie ya mikolo oyo. Na bokóli ya tekiniki oyo ezali kokoba, bilikya ya kosalela ba polyols ekozala lisusu monene koleka.