Cov khoom thiab viscosity ntawm CMC

Polyvinyl cawv (PVA) yog cov khoom siv dav siv polymer uas pom cov ntawv thov ua kua nplaum los yog nplaum hauv ntau yam lag luam. Nov yog qee qhov tseeb tseem ceeb ntawm Polyvinyl Cawv ua kua nplaum:

1. Dej-soluble:

PVA yog dej-soluble, uas txhais tau hais tias nws tuaj yeem yooj yim yaj hauv dej los tsim cov kua dej khov. Cov cuab yeej no ua rau PVA kua nplaum yooj yim siv thiab tso cai rau kev ntxuav yooj yim nrog dej.

2. Tsis muaj tshuaj lom thiab nyab xeeb:

PVA kua nplaum feem ntau tsis muaj tshuaj lom thiab muaj kev nyab xeeb rau kev siv ntau yam kev siv, suav nrog kev kos duab thiab khoom siv tes ua, ua haujlwm ntoo, thiab ntawv ua haujlwm. Nws yog feem ntau nyiam siv hauv tsev kawm ntawv, tsev neeg, thiab DIY tej yaam num vim nws txoj kev nyab xeeb.

3. Ntau yam Adhesive:

PVA kua nplaum nthuav tawm zoo heev adhesion rau ntau yam substrates, nrog rau cov ntawv, ntoo, ntaub, cardboard, thiab cov ntaub ntawv ntxeem tau. Nws yog feem ntau siv rau kev sib txuas cov ntawv, duab los qhia, thiab ntoo hauv cov khoom siv tes ua, woodworking, bookbinding, thiab ntim daim ntaub ntawv.

4. Dries Clear:

PVA kua nplaum dries mus rau pob tshab los yog translucent tiav, tawm hauv tsis pom cov residue los yog discoloration ntawm daim ntawv cog lus. Qhov no ua rau nws zoo tagnrho rau cov ntawv thov uas qhov kev zoo nkauj yog qhov tseem ceeb, xws li ntawv crafts, collage, thiab cov haujlwm zoo nkauj.

5. Muaj zog Bond:

Thaum siv tau zoo thiab tso cai rau kom qhuav, PVA kua nplaum ua kom muaj zog thiab ruaj khov ntawm cov substrates. Nws muab qhov zoo pib tack thiab adhesion lub zog, nrog rau kev sib cog lus zoo zog thaum lub sijhawm.

6. Modifiable Properties:

Cov khoom ntawm PVA kua nplaum tuaj yeem hloov kho los ntawm kev hloov kho yam xws li concentration, viscosity, thiab additives. Qhov no tso cai rau kev hloov kho cov kua nplaum kom haum rau cov ntawv thov tshwj xeeb, xws li qhov xav tau ntawm daim ntawv cog lus lub zog, lub sijhawm ziab, thiab yoog raws.

7. Dej-raws li thiab Eco-Friendly:

PVA kua nplaum yog dej-raws li thiab tsis muaj volatile organic compounds (VOCs) los yog cov tshuaj phem, ua rau nws tus phooj ywg environmentally. Nws yog biodegradable thiab tuaj yeem muab pov tseg kom nyab xeeb hauv ntau lub nroog pov tseg.

8. Kev siv:

PVA kua nplaum yog siv rau ntau yam kev siv, suav nrog:

• Arts thiab crafts: collage, ntawv mache, scrapbooking
• Woodworking: joinery, veneering, laminating
• Bookbinding: khi cov nplooj ntawv thiab npog
• Ntim: sealing cardboard thawv, cartons, thiab hnab ntawv
• Textiles: sib txuas cov ntaub txheej hauv kev xaws thiab tsoos tsho

9. Variants thiab formulations:

PVA kua nplaum muaj nyob rau hauv ntau yam formulations, nrog rau cov kua, gel, thiab cov ntaub ntawv khoom. Nws kuj tseem tuaj yeem hloov kho nrog cov khoom ntxiv xws li plasticizers, thickeners, thiab cross-linking agents los txhim kho cov khoom tshwj xeeb lossis cov yam ntxwv ua haujlwm.

Xaus:

Polyvinyl Alcohol (PVA) kua nplaum yog cov nplaum nplaum uas muaj ntau yam kev siv hauv kev kos duab thiab khoom siv tes ua, ntoo, ntim, textiles, thiab lwm yam lag luam. Nws cov dej-soluble xwm, non-toxicity, versatility, thiab muaj zog bonding zog ua rau nws ib tug nrov xaiv rau bonding ntau yam substrates nyob rau hauv ntau yam kev siv. Txawm hais tias siv hauv tsev kawm ntawv, tsev neeg, lossis chaw tsim khoom, PVA kua nplaum muab cov kev daws teeb meem zoo thiab muaj txiaj ntsig zoo rau kev sib txuas thiab kev xav tau sib dhos.