piav qhia luv luv
polyvinyl cawv (pva), yog siv dav hauv dej-soluble polymer nrog cov khoom ntawm cov yas thiab roj hmab. nws muaj qhov tshwj xeeb muaj zog adhesion, zaj duab xis yooj, roj tsis kam, kev ua haujlwm saum npoo, roj barrier, hnav tsis kam, thiab lwm yam. pva tuaj yeem raug tshuaj lom neeg cov tshuaj tiv thaiv polyols thiab tau txais kev kho mob insoluble los muab nws cov khoom sib txawv, yog li tsim cov khoom siv hluavtaws. cov nplua nuj derivatives tsim los ntawm nws thiab nws cov ntau yam kev siv ua pva ib qho tseem ceeb polymer organic chemical raw khoom.
kev lag luam saw
pva yog cov khoom siv tseem ceeb ntawm cov khoom siv raw, suav nrog cov thee, acetic acid, vinyl acetate, thiab lwm yam hauv cov dej hauv qab no tsuas yog siv rau kev tsim cov pva fibers, adhesives, textile pulp, pvb, thiab lwm yam terminal yuav tsum muaj xws li hluavtaws fibers, tsev nplaum, dawb latex, iav intermediate films, biodegradable pva films, thiab lwm yam.
daim ntawv thov cheeb tsam
| khoom qauv | cov ntawv thov tseem ceeb |
| 04-88 (l) 04-99 (l) 05-88 (l) |
Cov yeeb yaj kiab yeeb tshuaj, cov duab ntoo sab nraud, cov khoom siv dej siab, cov duab ua kom zoo nkauj rau cov luam ntawv ncaj nraim rau lub tiaj nyom, papermaking, emulsion |
| 05-99 (l) 10-92 (l) 14-92 (l) |
tshuaj yeeb yaj kiab, cov khoom siv tshuaj sab nraud, cov khoom siv warp sizing, tso tawm tus neeg sawv cev, emulsifier, thiab lwm yam. |
| 15-99 (l) 17-88 (l) 20-88 (l) |
roj zoo cementing qhob modifier, av txhim kho, rewetting adhesive, warp sizing khoom, pva zaj duab xis, pvac emulsion tiv thaiv colloid, photosensitive nplaum, pvb, thiab lwm yam. |
| 17-92(l) 17-96(l) 17-95(l) 17-98(l) 17-97(l) 19-99(l) 17-99(l) 20-99(h) 17-99 (hnub) |
ntaub sizing cov ntaub ntawv, ntaub finishing agents, daim ntawv nto sizing tus neeg saib xyuas, ntawv pigment adhesives, daim ntawv nplaum, emulsifiers, pva films, thermosetting resin modifiers, ferrite binders, dispersants, txheej, glues, pvb, pvf, thiab lwm yam. |
| 26-99 (l) | high viscosity adhesives, qib high-qib coatings, thiab lwm yam. |
| 17-99f(l) 17-99f (h) 26-99 (l) |
vinylene, high-strength thiab high-modulus pva fibers, dej-soluble fibers, nplaim retardants, hollow fibers, thiab lwm yam. |
| 10-99 (l) 17-80 (l) |
dispersants thaum pvc polymerization, thiab lwm yam. |
Cov ntaub ntawv qhia txog kev phom sij thiab kev pab thawj zaug
| hom phom sij | kev pab thawj zaug |
| inhalation: nqus tau ntau ntau yuav ua rau tsis xis nyob tiv thaiv daim tawv nqaij: tsis muaj kev phom sij qhov muag pom: me ntsis irritating Kev noj haus: noj ntau ntau yuav ua rau tsis xis nyob |
nqus plua plav: txav mus rau huab cua ntshiab Kev sib cuag ntawm daim tawv nqaij: ntxuav nrog dej huv qhov muag pom: ntxuav nrog dej huv Kev noj tshuaj: tsis muaj kev kho mob me me, thiab kev noj ntau ntau yuav tsum tau kho hauv tsev kho mob |
| hluav taws kub thiab tawg phom sij: hmoov av sib xyaw nrog huab cua tuaj yeem ua rau tawg, thiab lub zog tawg yog muaj zog, ncav cuag 1.0-2.0 (peb cov txheej txheem kev tswj hwm cov zaub mov) |
bulk cia yuav tsum tiv thaiv kom raug pob thiab khaws cia rau hauv hnab zaj duab xis lossis hnab ntawv tsuag nrog dej, los yog siv ua npuas ncauj, carbon dioxide los yog qhuav hmoov tua hluav taws thaum muaj hluav taws |
| ib puag ncig kev phom sij: hmoov av ntab hauv huab cua yuav ua rau huab cua hauv zos tsis zoo; nws yuav yaj nyob rau hauv dej thaum nws nkag mus rau hauv lub kav dej, ua npuas ncauj uas yuav ua rau ib tug me ntsis nce nyob rau hauv cod thiab bod nqi; nws yuav tsis ua kom pom kev puas tsuaj thaum nws nkag mus rau hauv av |
txhim kho huab cua ncig thiab ntxiv cov khoom siv tshem tawm plua plav mus rau cov khoom siv cua nws muaj peev xwm ua kom muaj roj ntsha muaj zog thiab feem ntau yuav tsis ua rau muaj kuab paug mus ntev, tab sis qhov loj ntawm nws nkag mus rau tus dej kuj yuav ua rau muaj kev phom sij. tshem tawm hauv av thiab cov khoom siv los nthuav tawm cov ntaub ntawv, ntxuav cov av thiab cov khoom siv, thiab nruab cov cuab yeej lim dej ntawm qhov hluav taws xob |
| kev phom sij ntawm lub cev thiab tshuaj lom neeg | tsis muaj |
| kev phom sij tshwj xeeb | tsis muaj |
xov xwm kub2024-12-09
2024-11-22
2024-10-22
2024-10-22
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