EN
SINOPEC PVA 26-99 & PVA 100-84
Piav qhia
Saib xyuas
PVA yog ib qho polymer linear nrog cov qhuav hydroxyl secondary. Nws muaj qhov zoo solubility, thermal stability, chemical resistance, storage stability thiab film formation.
Cov ntaub ntawv thev naus laus zis
Khoom |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Nqe) |
Purity (% ≥) |
100-84 |
99.0-100.0 |
80.0-90.0 |
≤5.0 |
≤0.7 |
5~7 |
≥93.5 |
Tawv Tshaj Txhais
Kev Pov Daim Ntawv Thiab Kev Kuaj
Polyvinyl alcohol tau los ntawm qhov ntau tshwj xeeb hauv kev pov daim ntawv vim li qhov zoo hauv kev ua lub voj voos, kev nyob deb thiab kev raug zoo nkawv. Nws txhawm rau zoo dua li qhov zoo hauv kev lag luam (siab siab, zoo siab) tab sis kuj tso cai rau cov daim ntawv muaj qhov zoo hauv kev kho mob (acetalization).
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 hauv kev ncaj ncees tuaj yeem ua raws li qhov kev pab tiv thaiv, sib txuas zoo thiab ua rau yooj yim dua. Nws cov nuj nqo ua haujlwm yog tiv thaiv kho mob, sib txuas zoo thiab ua rau yooj yim dua, thiab nws yog ib qho tsim nyog rau cellulose substrates.
Forming board adhesive
Polyvinyl alcohol yog qhov adhesive nyob rau hauv kev tsim tawm board adhesives los ntawm nws qhov siab bonding strength, kho tau cov water resistance thiab environmental safety. Nws yog qhov zoo rau cov chaw xws li gypsum boards thiab wood chip boards uas xav tau qhov mechanical properties thiab environmental friendliness.
Pob
25 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.
