PVA
Polyvinyl cawv yog dej zoo heev -raws li nplaum. Cov khoom siv dav dav yog flake, granular lossis flocculent. Nws tsis yooj yim soluble hauv dej txias. Cua sov yog feem ntau yuav tsum tau thaum lub sij hawm dissolution. Tom qab tau finely pulverized thiab nto kho, nws muaj zoo dej txias dissolving kev ua tau zoo. Tab sis vim nws cov thermoplasticity, pulverization yuav nyuaj tshwj xeeb. Peb lub Hoobkas tau txais cov txheej txheem tshwj xeeb ntawm cov kua nitrogen uas tsis muaj qhov kub thiab txias kom ntseeg tau tias cov hmoov ntawm cov khoom siv crushed zoo li qub. Yog li hais tias cov khoom muaj cov dej solubility zoo heev.
Daim ntawv thov:
1, Kev tsim kho thaj chaw
Polyvinyl cawv yog dav siv nyob rau hauv kev tsim kho kev lag luam los npaj putty. Putty yog cov khoom siv kho kom zoo nkauj hauv tsev siv rau phab ntsa theem thiab kho kom zoo nkauj los muab cov phab ntsa du thiab muag heev. Putty npaj los ntawm PVA muaj zoo toughness, dej tsis kam, thiab adhesion, ua rau nws zoo heev rau sab hauv tsev thiab sab nraum zoov kho kom zoo nkauj phab ntsa, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig ntub dej uas feem ntau tuaj rau hauv dej, xws li chav dej thiab chav dej. Tsis tas li ntawd, PVA kuj tseem tuaj yeem siv los ua cov pob zeb hloov kho rau cov cement mortar, txhim kho lub zog ntawm cov cement mortar, txo cov kev tawg, thiab txhim kho cov vaj tse.
2, Textile teb
Hauv kev lag luam textile, PVA yog siv los ua tus neeg sawv cev thiab cov nplaum. Vim nws muaj zog adhesion rau cov ntaub ntawv cellulose, PVA tuaj yeem siv rau qhov loj me, luam ntawv, thiab ua cov ntaub xov xov los txhim kho tes thiab ua haujlwm ntev ntawm textiles. Lub caij no, PVA kuj tuaj yeem siv los ua cov nplaum rau cov khoom tsis yog -woven thiab textile fabrics, pab txhim khu kev ruaj khov thiab ruaj khov ntawm cov khoom.
3, Ntawv kev lag luam
PVA, raws li tus neeg saib xyuas qhov loj me rau daim ntawv, tuaj yeem txhim kho qhov hnav tsis kam, roj tsis kam, thiab hnyav tsis kam ntawm daim ntawv, nrog rau kev txhim kho kev luam ntawv ntawm daim ntawv. Qhov tseem ceeb tshaj, PVA tuaj yeem txhim kho qhov kev ruaj ntseg thiab lub zog ntawm daim ntawv, tso cai rau nws tswj nws cov duab qub thiab loj hauv ntau qhov chaw thiab ua kom ruaj khov.
4, Coatings teb
PVA, raws li cov khoom siv hauv cov txheej txheem, tuaj yeem txhim kho kev ua tau zoo ntawm cov txheej txheem. Vim nws cov yeeb yaj kiab zoo heev- tsim cov khoom, PVA tuaj yeem tsim cov yeeb yaj kiab tiv thaiv tawv tawv ntawm cov khoom, yog li txhim kho qhov hnav tsis kam, tiv taus txias, thiab roj tsis kam ntawm cov txheej txheem. Tsis tas li ntawd, PVA tuaj yeem ua rau kom yooj yim thiab glossiness ntawm cov coatings, txhim kho cov nyhuv zoo nkauj ntawm cov txheej.
5, Kev kho mob teb
PVA feem ntau yog siv los ua cov nplaum thiab txheej txheej rau cov ntsiav tshuaj. Nws tuaj yeem tsis tsuas yog ua kom ruaj khov thiab kav ntev ntawm cov tshuaj, tab sis kuj txhim kho cov saj ntawm cov tshuaj, ua rau nws yooj yim dua rau nqos.
Khoom Specification
| KHOOM NPE | INDEX npe | ||||
|
Hydrolysis (moi%) |
viscosity (cos) |
Volatilies (%) Tsawg dua lossis sib npaug |
Tshauv (%) Tsawg dua lossis sib npaug |
PH Vaiue |
|
| PVA 05-88 | 87.0-89.0 | 4.5-5.5 | 5.0 | 0.5 | 5-7 |
| PVA 10-88 | 87.0-89.0 | 7.0-9.0 | 5.0 | 0.5 | 5-7 |
| PVA 12-88 | 87.0-89.0 | 10.0-12.0 | 5.0 | 0.5 | 5-7 |
| PVA 15-88 | 87.0-89.0 | 15.0-19.0 | 5.0 | 0.5 | 5-7 |
| PVA 15-92 | 91.0-93.0 | 16.0-20.0 | 5.0 | 0.5 | 5-7 |
| PVA 15-95 | 94.0-96.0 | 17.0-21.0 | 5.0 | 0.5 | 5-7 |
| PVA 17-88 | 87.0-89.0 | 20.5-24.5 | 5.0 | 0.5 | 5-7 |
| PVA 17-92 | 91.0-93.0 | 21.0-27.0 | 5.0 | 0.5 | 5-7 |
| PVA 17-95 | 94.0-96.0 | 22.0-28.0 | 5.0 | 0.5 | 5-7 |
| PVA 20-88 | 87.0-89.0 | 27.0-33.0 | 5.0 | 0.5 | 5-7 |
| PVA 20-92 | 91.0-93.0 | 28.0-34.0 | 5.0 | 0.5 | 5-7 |
| PVA 20-95 | 94.0-96.0 | 30.0-36.0 | 5.0 | 0.5 | 5-7 |
| PVA 22-88 | 87.0-89.0 | 30.0-36.0 | 5.0 | 0.5 | 5-7 |
| PVA 22-92 | 91.0-93.0 | 34.0-40.0 | 5.0 | 0.5 | 5-7 |
| PVA 22-95 | 94.0-96.0 | 38.0-44.0 | 5.0 | 0.5 | 5-7 |
| PVA 24-88 | 87.0-89.0 | 40.0-48.0 | 5.0 | 0.5 | 5-7 |
| PVA 24-92 | 91.0-93.0 | 42.0-50.0 | 5.0 | 0.5 | 5-7 |
| PVA 24-95 | 94.0-96.0 | 44.0-52.0 | 5.0 | 0.5 | 5-7 |
| PVA 26-88 | 87.0-89.0 | 44.0-54.0 | 5.0 | 0.5 | 5-7 |
| PVA 26-92 | 91.0-93.0 | 47.0-57.0 | 5.0 | 0.5 | 5-7 |
| PVA 26-95 | 94.0-96.0 | 52.0-62.0 | 5.0 | 0.5 | 5-7 |
| PVA 05-97 | 96.0-98.0 | 5.0--6.0 | 5.0 | 0.7 | 5-7 |
| PVA 05-99 | 98.0-99.3 | 5.0-6.0 | 5.0 | 0.7 | 5-7 |
| PVA 10-97 | 96.0-98.0 | 8.0-11.0 | 5.0 | 0.7 | 5-7 |
| PVA 10-99 | 98.0-99.3 | 9.0-12.0 | 5.0 | 0.7 | 5-7 |
| PVA 12-97 | 96.0-98.0 | 11.0-14.0 | 5.0 | 0.7 | 5-7 |
| PVA 12-99 | 98.0-99.3 | 12.0-15.0 | 5.0 | 0.7 | 5-7 |
| PVA 15-97 | 96.0-98.0 | 18.0-22.0 | 5.0 | 0.7 | 5-7 |
| PVA 15-99 | 98.0-99.3 | 19.0-23.0 | 5.0 | 0.7 | 5-7 |
| PVA 17-97 | 96.0-98.0 | 23.0-29.0 | 5.0 | 0.7 | 5-7 |
| PVA 17-99 | 98.0-99.3 | 25.0-31.0 | 5.0 | 0.7 | 5-7 |
| PVA 20-97 | 96.0-98.0 | 32.0-40.0 | 5.0 | 0.7 | 5-7 |
| PVA 20-99 | 98.0-99.3 | 36.0-44.0 | 5.0 | 0.7 | 5-7 |
| PVA 22-97 | 96.0-98.0 | 38.0-46.0 | 5.0 | 0.7 | 5-7 |
| PVA 22-99 | 98.0-99.3 | 45.0-55.0 | 5.0 | 0.7 | 5-7 |
| PVA 24-97 | 96.0-98.0 | 47.0-57.0 | 5.0 | 0.7 | 5-7 |
| PVA 24-99 | 98.0-99.3 | 50.0-60.0 | 5.0 | 0.7 | 5-7 |
| PVA 26-97 | 96.0-98.0 | 55.0-65.0 | 5.0 | 0.7 | 5-7 |
| PVA 26-99 | 98.0-99.3 | 60.0-70.0 | 5.0 | 0.7 | 5-7 |
Peb Qhov Zoo
★ Kev Pabcuam Kev Ua Haujlwm
★ 10 Xyoos Hoobkas Kev Paub
★ Zoo thiab lav zoo
★ Tus nqi zoo tshaj rau koj
★ Kev tswj hwm kev pabcuam zoo meej
★ Customization Txhawb nqa
Cim npe nrov: Colorshine pva polyvinyl cawv, Tuam Tshoj colorshine pva polyvinyl cawv manufacturers, lwm tus neeg, Hoobkas
