Polyvinyl cawv PVA 2488

Polyvinyl cawv(PVA) 2488 yog ib qib tshwj xeeb ntawm PVA, thiab tus lej tsim feem ntau qhia txog qee yam tshwj xeeb lossis cov yam ntxwv ntawm qib tshwj xeeb no. PVA yog cov khoom siv hluavtaws ua los ntawm hydrolysis ntawm polyvinyl acetate. PVA 2488, zoo li lwm qib ntawm PVA, paub txog nws cov dej-solubility thiab zaj duab xis-tsim cov khoom. Nov yog qee qhov tseem ceeb thiab cov ntawv thov uas cuam tshuam nrog PVA 2488:

PVA 2488 Yam ntxwv:

1. Qib Hydrolysis:

• Qib ntawm hydrolysis hauv PVA 2488 yog hais txog qhov uas polyvinyl acetate tau hydrolyzed los ua polyvinyl cawv. Cov qib PVA sib txawv tuaj yeem muaj qhov sib txawv ntawm hydrolysis, cuam tshuam rau lawv cov khoom.

2. Molecular Luj:

• PVA 2488 tej zaum yuav muaj qhov hnyav molecular, cuam tshuam nws cov viscosity thiab kev ua yeeb yaj kiab.

3. Daim ntawv lub cev:

• PVA 2488 feem ntau muaj nyob rau hauv daim ntawv ntawm cov hmoov dawb mus rau dawb dawb.

Kev siv ntau:

1. Adhesives:

• PVA 2488 feem ntau yog siv los ua cov khoom tseem ceeb hauv ntau cov nplaum, nrog rau cov nplaum ntoo thiab cov ntawv nplaum. Nws muab kev sib txuas zoo zog thiab yoog raws.

2. Textile Sizing:

• Hauv kev lag luam textile, PVA 2488 tuaj yeem siv rau hauv cov qauv tsim los txhim kho lub zog thiab tuav cov khoom ntawm cov xov paj.

3. Ntawv Txheej:

• PVA 2488 tuaj yeem siv rau hauv kev lag luam ntawv rau txheej txheej, txhim kho cov khoom nto thiab cov ntawv luam tawm.

4. Khoom siv:

• PVA 2488 tuaj yeem pom cov ntawv thov hauv kev tsim kho kev lag luam, tshwj xeeb tshaj yog cov khoom ntxiv hauv cov cement formulations los txhim kho adhesion thiab yooj.

5. Ntim:

• PVA zaj duab xis, suav nrog cov raws li PVA 2488, yog siv hauv cov ntawv ntim dej-soluble.

6. Kev siv kho mob:

• PVA, feem ntau, yog siv rau hauv daim ntawv thov kev kho mob, suav nrog kev tsim cov hnab looj tes phais thiab ua ib feem hauv kev tswj-tso tshuaj formulations.

7. Emulsifiers:

• PVA 2488, nrog nws cov khoom emulsifying, tej zaum yuav raug ua hauj lwm hauv kev tsim cov emulsions.

Kev txiav txim siab:

1. Formulation Specifications:

• Qhov kev xaiv ntawm PVA qib, suav nrog PVA 2488, nyob ntawm cov kev cai tshwj xeeb ntawm daim ntawv thov npaj. Cov qib sib txawv ntawm hydrolysis thiab qhov hnyav molecular muaj kev hloov pauv hauv kev ua haujlwm.

2. Compatibility:

• PVA 2488 feem ntau raug xaiv raws li nws qhov kev sib raug zoo nrog lwm cov khoom xyaw hauv kev tsim thiab nws lub peev xwm ua tau raws li qhov xav tau kev ua haujlwm.

3. Cov lus pom zoo ntawm tus neeg muag khoom:

• Ua haujlwm ze nrog PVA cov chaw muag khoom thiab cov chaw tsim khoom yog qhov tseem ceeb rau kev tau txais kev taw qhia ntawm kev pom zoo ntawm PVA 2488 hauv cov qauv sib txawv. Cov neeg muag khoom tuaj yeem muab kev nkag siab txog cov tswv yim tsim thiab kev sib raug zoo nrog lwm cov khoom ntxiv.

Hauv cov ntsiab lus, PVA 2488 yog qib tshwj xeeb ntawm Polyvinyl Cawv nrog cov yam ntxwv tshwj xeeb uas ua rau nws tsim nyog rau ntau yam kev siv, tshwj xeeb hauv cov nplaum, textiles, ntawv txheej, cov ntaub ntawv tsim kho, thiab lwm yam. Yog tias koj muaj cov ntsiab lus tshwj xeeb lossis daim ntawv thov hauv siab, muab cov ntsiab lus ntxiv yuav ua rau cov lus teb meej dua.