EN
Shuangxin PVA 20-99 & PVA 100-35
Piav qhia
Saib xyuas
Nws muaj qhov zoo ntawm kev daws teeb meem, tsim cov yeeb, cov khoom nplaum, thermal stability, solvent resistance thiab reactivity.
Cov ntaub ntawv thev naus laus zis
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Tawv Tawm Rog Nyob ntawd tsis
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Tshiab Qauv Nyob ntawd tsis
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Khoom |
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Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Nqe) |
Purity (% ≥) |
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20-99 |
100-35 |
99.0-100.0 |
47.0-56.0 |
≤5.0 |
≤0.5 |
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).
Ntawv Nyob Deb
Polyvinyl alcohol ua rau muaj kev nyob deb zoo, zoo rau lub ntiaj teb thiab ua tau ntau yam haujlwm nyob rau hauv ntawv pov los ntawm nws cov molecular zoo ib unique (ntawv loj ntawm cov hydroxyl groups) thiab cov lus zoo ntawv thiab kim.
Tsis lawm
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.
Sponge
Polyvinyl alcohol, los ntawm nws cov groups uas xav dej thiab cov lus zoo cross-linking, tsim cov haujlwm zoo tshaj plaws ntawm sponge, yog li high-water absorption, biosafety thiab zoo rau lub ntiaj teb.
Pob
25 kg/hnab.
Khaws
- Nyob hauv chav qhuav, muaj huab cua zoo, nrog qhov kub nruab nrab ntawm 5-30°C.
- Khaws deb ntawm qhov chaw kub, khaws deb ntawm qhov qhuav, thiab zam kev pom rau hnub.
- Nws yog qhov tsis pub dhau kom khaws cia ua ke nrog cov tshuaj muaj zog kom tsis txhob muaj adsorption thiab kev puas tsuaj.
