EN
Wanwei PVA 05-99(L) & PVA 098-05
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 (% ≥) |
05-99（L） |
98.0-99.8 |
4.5-7.0 |
≤7.0 |
≤0.7 |
5~7 |
≥93.5 |
Tawv Tshaj Txhais
Kev Ncav Duab Pov
Polyvinyl alcohol raug siv los ntawm ib qho ua pov kom zoo dua kom pov zoo dua thiab kom tsis hnov mob, kom tsawg tus pov breaking hauv kev tsim kho, thiab pab kom zoo dua hauv kev tsim kho lwm yam.
Kev lag luam
Polyvinyl alcohol ua ob peev xwm ntawm kev cuab yeej tiv thaiv thiab kev lag luam hloov kho. Nws cov leej txawj ntau dhau los ntawm qhov siab ntawm alcoholysis, qhov siab ntawm polymerization thiab kev xa mus rau lwm hom.
Phaj ntawv yaj
Polyvinyl alcohol tuaj yeem siv rau hauv kev puv yaj los paib yaj, tswj kev tso tawm, thiab nce qhov siv khun pov.
Kev tso tawm tus neeg
Polyvinyl alcohol ua raws li ib daim ntawv kav hlau nyob rau hauv kev tso tawm tus neeg, tiv thaiv kev hlub thiab tso tawm los ntawm kev tsim daim ntawv uas tuaj yeem sov nrog dej, thiab xya tias zoo rau kev tiv thaiv mold tshiab, kev tso tawm cov khoom uas muaj qhov loj me, thiab cov xwm txheej kev lag luam. Nws cov phiaj yog tsafeb thiab dav hlau, tsis muaj dej ntsuag, tab sis ceev nrog qhov kawg (≤150 ℃) thiab kev tswj hwm qhov roughness ntawm qab zib.
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.
