EN
Polyvinyl Alcohol (PVA) -SINOPEC SUNDY
Piav qhia
Saib xyuas
Qhov txheej txheem suav nrog cov kauj ruam nram qab no: siv ib qho calcium carbide acetylene txoj kev tsim khoom thiab ib qho fixed bed synthesis reactor los tsim vinyl acetate; siv vinyl acetate ua raw material, methanol ua solvent, azobisisobutyronitrile ua initiator, siv free radical solution polymerization mode, thiab siv anhydrous low-alkali belt alcoholysis mode los tsim polyvinyl alcohol; thiab ua crushing, pressing, drying, packaging thiab lwm yam kom tau txais cov khoom.
Txhais Nploog
Cov tsis: Polyvinyl Alcohol (PVA)
Tawj hauv kawm: -[CH2CH(OH)]n
Nyob qhov ntawv: 0.4-0.5 g/ml
Ntau tswv teb chaw:
- Koom nyob: Yog cov nyob rau hauv tub, lub ntsi ntawv hauv yog tus tswv teb chaw. Cov koom nyob yog mus yam li cas noj kawg thiab cas noj alcoholya. Yog cas noj alcoholya mus los, cov koom nyob rau hauv mus tshaj thiab cov koom nyob tshuaj li cas noj alcoholya yog 88%. PVA yog nyob rau hauv ntsi ntawv hauv qhia xyooj (glycerol, ethylene glycol, acetic acid, acetaldehyde, etc.), xws yog mus gel, nyob qhov ntawm hauv ntsi ntawv hauv thiab inorganic acids (H 2SO 4, HCl, etc.)
- Tsis lawm qhov noj: PVA ntawv dawb li cas tias yog tsis lawm qhov noj, qhov noj yog xav hais tshaj thiab txheej, muaj lub ntsiag rau ntawm qhov ntsuas, thiab muaj rau hauv lwm nyob. Qhov noj li cas tias ua hauj xaib ntawm hauv npawb, los yog hauv pH, oxygen, thiab carbon dioxide thiab cov neeg khw mus, thiab hauv npawb tswv teb li cas tias ua hauj xaib ntawm qhov noj.
- Cov koom: PVA ntawv dawb li cas tias ua kom ntawm tej, wood, paper thiab cov neeg khw tus koom nrog qhov koom thiab muaj rau hauv lwm nyob.
- Cov koom: PVA thiab starch, gum, synthetic resin, cellulose derivatives thiab cov neeg surfactants muaj rau hauv lwm nyob thiab muaj rau hauv lwm nyob thiab stability.
- Chemical resistance: Rau hauv lwm nyob, pH qhov PVA ntawv dawb li cas tias muaj 5-7, viscosity muaj rau hauv lwm nyob, thiab muaj rau hauv lwm nyob thiab weak acid, weak base los yog organic solvent (ester, ketone, higher alcohol, hydrocarbon), oil resistance muaj rau hauv lwm nyob, los yog muaj rau hauv lwm nyob thiab peroxide. 2O 2.
- Tsis txhais ntawm qab: PVA thiaj tsev los no. Ntawm lub tsev hais 130~140℃, cov ntsuav nws kawg yuav paub tsis muaj ib tug xovxwm, rau koj mus kho nyob. Tsis txhais thiab ntawm 160℃, lub kho nyob ua kev pab. Ntawm 200℃, cov ntsuav nws ua daim ntawm qab thiab cov ntsuav nws muaj sib xaiv ntawm qab los yog cov tsev. Ntawm lub tsev li 200℃, ua daim ntawm qab thiab cov ntsuav nws muaj sib xaiv ntawm qab. Rau 300℃, ua daim thiab tsis muaj qab, cuj cai, cuj cai thiab cuj cai (ntawm cov phooj ywg daim ntawm qab thiab tsis muaj ib tug xovxwm).
- Cov ntsuav nrog qab: PVA yuav tsum tias muaj cov ntsuav Congo red, iodine, copper hydroxide, boric acid thiab salt, yuav ua daim ntawm cov ntsuav adducts, yuav ua rau rauj nrhiav thiab ua daim ntawm desizing thiab cleaning degree thiab ua rau rauj nrhiav PVA ntawm cov ntsuav nrog qab.
Product Summary
|
Khoom |
Hydrolysis (mol%) |
Viscosity (mpa.s) |
Volatile (%≤) |
Ash (%≤) |
pH (Nqe) |
|
086-03 |
85.0-87.0 |
3.4-4.2 |
≤5.0 |
≤0.4 |
5~7 |
|
088-05 |
87.0-89.0 |
4.5-6.0 |
≤5.0 |
≤0.5 |
5~7 |
|
098-05 |
98.0-99.0 |
5.0-6.5 |
≤5.0 |
≤0.5 |
5~7 |
|
088-08 |
87.0-89.0 |
8.0-10.0 |
≤5.0 |
≤0.5 |
5~7 |
|
098-08 |
98.0-99.0 |
9.0-11.0 |
≤5.0 |
≤0.5 |
5~7 |
|
088-20 |
87.0-89.0 |
20.5-24.5 |
≤5.0 |
≤0.4 |
5~7 |
|
092-20 |
91.0-93.0 |
21.0-27.0 |
≤5.0 |
≤0.5 |
5~7 |
|
094-27 |
94.0-96.0 |
22.0-28.0 |
≤5.0 |
≤0.5 |
5~7 |
|
096-27 |
96.0-98.0 |
23.0-29.0 |
≤5.0 |
≤0.5 |
5~7 |
|
100-27 |
99.0-100.0 |
22.0-28.0 |
≤5.0 |
≤0.7 |
5~7 |
|
088-35 |
87.0-89.0 |
29.0-34.0 |
≤5.0 |
≤0.3 |
5~7 |
|
092-35 |
91.0-93.0 |
30.0-36.0 |
≤5.0 |
≤0.3 |
5~7 |
|
100-35 |
99.0-100.0 |
35.0-43.0 |
≤5.0 |
≤0.7 |
5~7 |
|
088-50 |
87.0-89.0 |
45.0-55.0 |
≤5.0 |
≤0.3 |
5~7 |
|
098-60 |
98.0-99.0 |
58.0-68.0 |
≤5.0 |
≤0.5 |
5~7 |
|
100-60 |
99.0-100.0 |
58.0-68.0 |
≤5.0 |
≤0.7 |
5~7 |
|
100-70 |
99.0-100.0 |
68.0-78.0 |
≤5.0 |
≤0.7 |
5~7 |
Cov pob
20 kg/ib, 25 kg/ib.
Khaws
PVA yog peb niam noj hais tawm rau lwm qhov nyob ntawd 5-30℃. Thiaj mus thiab txog heat sources, thiaj muaj moisture, los yog sunlight exposure. Yog peb niam noj tab tom tias cov volatile chemicals ntawm noj tawm rau lwm.
Thauj
Cov PVA products yog peb niam noj hais tawm rau lwm transport vehicles qhov nyob ntawd. Thiaj muaj moisture, rain thiab sun. Txog lawv li cas li, thiaj muaj scratching thiab breaking package.
Kev phom sij qhia
Kev noj qab haus huv phom sij: Muaj kev phom sij los ntawm kev nqus, noj lossis absorption los ntawm tawv nqaij, ua rau mob rau qhov muag thiab tawv nqaij.
Kev phom sij pat: Qhov khoom no yog flammable thiab irritating.
Tshaj ntawv qhov tsis muaj
Tawv nqaij txuas: Tshem tawm cov khaub ncaws uas muaj kab mob thiab ntxuav nrog dej ntws.
Rau xyoo ntsuam: Tsov xyoo ntsuam mus rau hauv lub yog tsev los yim thiab hlo rooj hauv nyob twg xym ntawm tauj npaug lawm thiab ua li cas hais tias cov neeg tsa neeg.
Nqaij: Tso chaw mus rau huab cua tshiab. Yog muaj kev nyuaj siab, muab oxygen thiab tau txais kev kho mob.
Nqaij: Haus dej sov txaus kom ua rau nplaim thiab tau txais kev kho mob.
Kev tiv thaiv hluav taws
Qhov zoo tsis zoo: Hmoov thiab huab cua tuaj yeem tsim cov khoom sib xyaw hluav taws, thaum txog qee qhov concentration, nws yuav pat khiav thaum muaj cov nplaim. Tso tawm thaum kub kom tsim cov gas uas tuaj yeem hluav taws.
Cov khoom tua hluav taws: Dej, foam, hmoov qhuav, carbon dioxide thiab av sandy.
