EN
SINOPEC SUNDY PVA 24-88 & PVA 088-50（BP-24 & PVA 224 & PVOH 44-88）
Piav qhia
Saib xyuas
Nws qhov zoo nkauj yog dawb lossis daj daj, flake, granular lossis powdery solid. Zoo solubility, film forming, adhesion, compatibility, chemical resistance, heat resistance thiab xim rendering.
Cov ntaub ntawv thev naus laus zis
Khoom |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Nqe) |
Purity (% ≥) |
088-50 |
87.0-89.0 |
45.0-55.0 |
≤5.0 |
≤0.3 |
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.
Processing Daim Ntawv
Nyog kev tsim kho ntawv, cov polyvinyl alcohol yog ib qho khoom siv zoo heev uas tuaj yeem pab huvav kom zoo dua thiab ua haujlwm zoo dua los ntawm kev ua nrog tib lub zog ntawm "qeeb pov ntawv-kev nyob rau hauv-sib txuas ntawv". Nws muaj peev xwm zoo heev hauv kev huvav, kev sau ntawv, kev tiv thaiv dej thiab kev saib xyuas pob ze, thiab tseem yog ib yam uas tsis muaj leej twg hnav tau hauv kev tsim kho ntawv zoo thiab ntawv ua haujlwm siab.
Cov txog xyoo
Alcohol Polyvinyl siv ua los ntawm kev ntim qhov loj thiab lub zog huv, kom txo qhov hnyav ntawm cov hais tshem rau hauv kev tsim khoom thiab ua kom zoo dua qhov kua ntawv. Alcohol Polyvinyl nyob rau hauv cov roj hmoo tau dhau los ua kev daws teeb meem ntau dua li ib qho ua ke ntawm "kev ntxuav polar-film ua kom zoo dua-kev kho chemical". Qhov tseeb ntawm nws yog kev nyab xeeb thiab saib xyuas lub ntiaj teb, kev ntxuav ntau yam thiab yooj dua los kho, thiab nws yog qhov zoo heev rau cov khoom siv cellulose.
AdhesiveCoating
Alcohol Polyvinyl tau ua rau muaj "kev nthuav dav" hauv cov roj ntxuav los ntawm 4 qhov: film-forming reinforcement, interface bonding, kev lag luam thiab kev kho tshuaj nrog. Qhov tseeb ntawm nws yog qhov zoo ua ke ntawm kev ceev thiab kev ua kom zoo (ua kom zoo dua qhov ua kom tsis txawv thiab sib txuas), kev ua kom haum (xav txog ob peb yam xaus thiab kev ua kom sov), thiab kev tiv thaiv kho mob thiab kev ua kom yooj yim (tsis lom neeg, ua kom raug, thiab khawm emulsion). Cov lej yuav tsum tau pom nrog lub sijhawm.
Pob
20 kg/hnab.
Khaws
Khaws rau hauv qhov chaw qhuav, zoo-ventilated ntawm chav tsev kub 5-30 ℃. Tsis txhob mus ze qhov chaw kub, tiv thaiv cov av noo, tsis txhob raug tshav ntuj. Nws yog txwv tsis pub khaws cia ua ke nrog cov tshuaj volatile los tiv thaiv adsorption deterioration.
