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Polyvinyl Alcohol (PVA) -Wanwei
Piav qhia
Saib xyuas
Cia siab Wanwei High-tech Materials Co., Ltd. mus txog "Wanwei" yog cov tsis ntawm peb nyob rau hauv tswj kev polyvinyl alcohol (PVA) series products thiab ua kev tshaj npawm thiab tshaj, npe yog vinyl acetate mus txog calcium carbide acetylene method thiab petroleum ethylene method los noj raws, npe yog ethylene mus txog biological alcohol los noj raws, methanol los noj raws, peroxide los noj raws, kawg yuav tsum polymerization, alcoholysis thiab ib qab kev.
Txhais Nploog
Lub npe tshuaj: Polyvinyl Alcohol(PVA)
Cov lej hais txog cov molecular: -[CH2CH(OH)]n
Cov tsis muaj rau hwm:
Rau txhua yog hauj siab, xym ntawm lub tshaj rau thiab lub tshaj npawd (rooj cas lwm qhov cas) thib yog rau txhua flocculent tshaj (rooj cas lwm qhov cas). Tsawg ntsiav: 1.19-1.31 g/cm 3, xym PVA tsis tsawg ntsiav: 0.42-0.52 g/cm 3, flocculent tsis tsawg ntsiav: 0.20-0.27 g/cm 3.
Tswv teem kawm nyob
Tsiv hluav sib tshuaj nrog dej: PVA cov molecular ntawm yooj sib tshuaj nrog dej ntau vim nws muaj cov kab lus hydroxyl. Nws sib tshuaj nrog dej siab dua thaum dej txias dua, tsuas yog qhib rau hauv dej ntub (cov khoom siv uas tsis tau ua tiav yooj sib tshuaj nrog dej nyob rau sab saum toj no), thiab tuaj yeem sib tshuaj nrog dej sov. Nws lub tshuaj dej muaj kev ua leb thiab kev hlub mus zoo.
Thermal stability: Qhov khoom no yuav qiv thaum ua kom sov, tsis hlo li cas nyob rau hauv 40℃, 160℃ rau kev ua kom sov dhau si daws ces yuaj tshem tawm, kev ua phooj yaug dhau 220℃ ces ua rau dej, acetic acid, acetaldehyde thiab butenal.
Chemical resistance: Qhov khoom no tsis ntev heev los ntawm qhov khaub ncaw, qhov chaw ntsuag lossis cov solvents organic, thiab muaj kev tiv thaiv ntau.
Khaws cia stability: Qhov khoom no muaj kev nyab xeeb zoo, cia ntev nyob rau hauv av saum npoo ntaj tsis ua rau nplaum, tsis ua kom phooj yaug, tsis tso siab.
PVA yog polymer nrog cov rooj hydroxyl feem ob. Cov rooj hydroxyl feem ob hauv cov ntsiab lus molecular ntawm PVA muaj kev puas siab siab, thiab tuaj yeem ua cov pheng xim tshwj xeeb zoo li alkohol molecular tsawg, xws li esterification, etherification, acetalization, thiab lwm yam, thiab kuj tseem suav nrog ntau yam khoom sib inorganic thiab organic. Tsis toxic rau tus neeg thiab dej no tsis txawj ua rau dej thiab dej ntsha, ua tiav raws li kev ua dej ua tiav, hu ua cov khoom lag luam.
Product Summary
Khoom |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
PH (Nqe) |
03-88（L） |
85.0-90.0 |
2.5-3.5 |
≤7.0 |
≤0.7 |
5~7 |
03-97（L） |
95.0-99.0 |
3.0-4.0 |
≤7.0 |
≤0.7 |
5~7 |
04-88 (L) |
85.0-90.0 |
3.5-4.5 |
≤7.0 |
≤0.7 |
5~7 |
04-99（L） |
98.0-99.8 |
3.5-4.5 |
≤7.0 |
≤0.7 |
5~7 |
05-88（L） |
85.0-90.0 |
4.5-6.5 |
≤7.0 |
≤0.7 |
5~7 |
05-99（L） |
98.0-99.8 |
4.5-7.0 |
≤7.0 |
≤0.7 |
5~7 |
08-88（L） |
85.0-90.0 |
6.5-8.0 |
≤7.0 |
≤0.7 |
5~7 |
08-99（L） |
98.0-99.8 |
7.0-9.0 |
≤7.0 |
≤0.7 |
5~7 |
10-88（L） |
85.0-90.0 |
8.0-11.0 |
≤7.0 |
≤0.7 |
5~7 |
10-99（L） |
98.0-99.8 |
8.0-12.0 |
≤7.0 |
≤0.7 |
5~7 |
13-88（L） |
86.0-90.0 |
11.0-14.0 |
≤7.0 |
≤0.7 |
5~7 |
14-92（L） |
90.0-94.0 |
13.0-17.0 |
≤7.0 |
≤0.7 |
5~7 |
15-99（L） |
98.0-99.8 |
13.0-18.0 |
≤7.0 |
≤0.7 |
5~7 |
17-88（L） |
85.0-90.0 |
20.0-28.0 |
≤7.0 |
≤0.7 |
5~7 |
17-92 (L) |
90.0-94.0 |
20.0-28.0 |
≤7.0 |
≤0.7 |
5~7 |
17-98（L） |
97.0-99.0 |
24.0-32.0 |
≤7.0 |
≤0.7 |
5~7 |
17-99（L） |
99.0-100.0 |
22.0-32.0 |
≤7.0 |
≤0.5 |
5~7 |
20-88 (L) |
85.0-90.0 |
28.0-40.0 |
≤7.0 |
≤0.5 |
5~7 |
20-92 (L) |
90.0-94.0 |
29.0-40.0 |
≤7.0 |
≤0.7 |
5~7 |
20-99（L） |
99.0-100.0 |
35.0-48.0 |
≤7.0 |
≤0.7 |
5~7 |
24-88（L） |
85.0-90.0 |
43.0-58.0 |
≤7.0 |
≤0.7 |
5~7 |
24-99（L） |
99.0-100.0 |
65.0-85.0 |
≤7.0 |
≤1.0 |
5~7 |
26-99（L） |
99.0-100.0 |
85.0-100.0 |
≤7.0 |
≤0.7 |
5~7 |
17-99（H） |
99.0-100.0 |
20.0-26.0 |
≤8.0 |
≤2.8 |
7~10 |
19-99（H） |
99.0-100.0 |
26.0-34.0 |
≤8.0 |
≤2.8 |
7~10 |
20-99（H） |
99.0-100.0 |
34.0-42.0 |
≤8.0 |
≤2.8 |
7~10 |
23-99（H） |
99.0-100.0 |
42.0-55.0 |
≤6.5 |
≤2.5 |
7~10 |
22-99（H） |
99.0-100.0 |
42.0-55.0 |
≤8.0 |
≤2.8 |
7~10 |
24-99（H） |
99.0-100.0 |
55.0-65.0 |
≤8.0 |
≤2.8 |
7~10 |
Tawv Tshaj Txhais
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.
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.
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.
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.
Cov pob
20 kg/ib, 25 kg/ib.
