EN
Wanwei PVA 26-99(L) & PVA 100-86
Piav qhia
Saib xyuas
PVA qhov zoo nkauj yog dawb flake, granular lossis powdery solid (low-alkali alcoholysis txheej) lossis dawb flocculent solid (high-alkali alcoholysis txheej). Nws yog ib hom polymer soluble hauv dej nrog kev siv dav, thiab nws cov haujlwm yog nyob nruab nrab ntawm yas thiab rubber. Nws muaj qhov tshwj xeeb muaj zog adhesion, film flexibility, roj tiv thaiv, surface activity, gas barrier, wear resistance thiab lwm yam.
Cov ntaub ntawv thev naus laus zis
Khoom |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Nqe) |
Purity (% ≥) |
26-99（L） |
99.0-100.0 |
85.0-100.0 |
≤7.0 |
≤0.7 |
5~7 |
≥93.5 |
Tawv Tshaj Txhais
Daim nyob hauv dej
Polyvinyl alcohol muab tso rau hauv dej sib nqus lub suab ntuj los ntawm kev tsim kho cov khoom lag luam (DP thiab lub kaum tob ntawm kev ua dej), thiab ua li ib qho kev pab ntau dua rau kev ua kom zoo thiab yuav tsum ua kom raug.
Zoo thiab zoo heev PVA Daim
Polyvinyl alcohol tau tiv thaiv cov lus teeb meem rau cov daim PVA zoo thiab zoo heev los ntawm peb qhov ceg: kev coj tus kheej ntawm molecular chain, kev cog lus zoo thiab kev ua haujlwm kom zoo.
Vinylon
Vinylon daim yog tsim los ntawm acetalizing polyvinyl alcohol, uas muaj kev nqus dej thiab zoo.
Kev tiv thaiv dej
Polyvinyl alcohol ua ob qhov haujlwm nyob rau hauv qhov chaw tiv thaiv dej: nws yog ib qho uas tuaj yeem ua rau dej sov thiab yuav tsum tau txiav txim siab kom zoo dua, thiab nws kuj tuaj yeem siv los yog ib qho pab kom zoo dua rau kev tiv thaiv dej ntawm lwm yam.
Cov pob
25 kg/hnab.
Khaws
Thov zam kev tsim lossis khaws cov av. Ua kom muaj kev ceev faj tiv thaiv cov hluav taws xob, nplai/kev nplai txhua lub cuab yeej. Thov zam kev tiv tauj nrog cov khoom kub lossis molten. Tsis txhob hnoos av, fumes lossis vapors los ntawm cov khoom kub. Siv cov huab cua tawm hauv cheeb tsam txheej. Ua kom muaj kev ceev faj tiv thaiv hnub ci ncaj thiab nag txhuam thaum thauj. Khaws cov tsheb thauj khoom kom huv. Thov zam kev puas tsuaj ntawm cov pob thiab khaws deb ntawm cov impurities.
