EN
polyvinyl alcohol (pva) - sinopec
description
overview
methodus sequentes gradus comprehendit: adhibito calcii carbide acetylene methodo productionis processus et synthesis reactor fixa ad acetatem vinyl producendam; acetatem vinyllam adhibens ut materiam crudam, methanolum ut solvens, azobisisisobutyronitrilem ut initiatorem, liberam solutionem radicalem polymerizationis modo adoptans, et adhibens modum alcoholysim cinguli anhydroi low-alcali cinguli ad polyvinylum alcohole producendum; et exsequendo opprimendo, premendo, siccando, stipando, et similia ad obtinendum opus.
Product Details
eget nomen: polyvinyl alcohol (pva)
formula hypothetica: -[ch2ch(oh)]n
corporis proprietates;
- solubility: pulveris alcoholis polyvinyl in aqua dissolvi potest. polyvinyl alcohol resinae cum gradu alcoholysis minoris quam 95% solvi potest in aqua ad locus temperatus, et alcohol resina polyvinyl cum gradu alcoholysis majoris quam 99,5% tantum in aqua calida superne dissolvi potest. 95℃.
- scelerisque stabilitatem: alcohole polyvinum calefactum emolliet, nulla manifesta mutatio infra 40℃, supra 160℃, diu calefacta paulatim colorat, et supra 220℃ tabescit aquam generare, aceticum, acetaldehyde et crotonaldehyde.
- resistentia chemica: pva vix acido infirmo, basi infirma vel organico solvendo afficitur, eiusque oleum resistentia altissima est.
- Repono stabilitatem: pva viscositas gravis est polymerus, eius solutio aquea valde stabilis est in locus temperatus. solutiones aqueae non deficiunt in repono.
- cinematographica formatio: ob altam adhaesionem inter moleculas pva, pva est facile membranas formare, pellicula formata est sine colore et perspicua, vires mechanicas bonas habet, superficies lenis et non viscosa, bonae solutionis resistentia. pellicula hypothetica bonam lucem transmissionis, altam humorem permeabilitatem, nullum crimen, nullum pulverem collectionis et bonae figurae habet.
chemicae proprietas:
pva videri potest polymer linearis cum coetibus hydroxylis secundariis. coetus hydroxylis in moleculo altam actionem habet et chemicae reactiones typicas alcoholorum humilis, ut esterificatio, eterificatio, acetalization, etc., agere potest et etiam agere cum multis compositis inorganicis vel organicis compositionibus.
product summary
|
item |
hydrolysis (mol%) |
viscositas (mpa.s) |
volatile (%≤) |
cinis (%≤) |
ph * (valorem) |
|
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 |
packages
20 kg/pera, 25 kg/pera.
repono
repone in arido, conclavi bene ventilato in cella temperie 5-30℃. fontes caloris non appropinquant, humiditatem prohibent, solem nuditatem devitant. vetitum est simul cum chimicis volatilibus condere, ne adsorptionem depravationis.
stipare signum
pva producti packaging notas claras ac firmas habere debent notas operis nominis, exemplar, gradus, batch numerum, rete pondus, nomen et electronicam fabricare.
translationem
pva producta devehenda sunt vehiculis mundis opertis vecturae, ne umor, imber et sol sint. leniter tractamus ne scalpendi vel frangendi sarcina.
