Polyvinyl Alcohol Nqe rau ib Kilogram thiab lwm yam tseem ceeb uas yuav tsum xav txog

Kov txhais ntawm polyvinyl alcohol (PVA) per kilogram yog lawv tawj hauv rau cov xovxwm, ntsuam, thiab cov lwm hauv molecule. Cov PVA powders ntawm industrial-grade (lub, PVA 2488) mus $1.5 los $2.5/kg ntawm bulk (≥1,000 kg), meej ib tug food-grade los pharmaceutical-grade PVA yog mus $3 los $4.5/kg. Low-molecular-weight PVA (13–23k Da) yog muaj zoo tias cheem nyob los high-molecular-weight grades (85–124k Da), noog li yuav tsum ua hauv tsis muaj zoo tau film properties. Cov qhov tsis li kawm degree of hydrolysis (DH) thiab yuav muaj npawb ntawm pricing: fully hydrolyzed PVA (DH ≥98%) yog muaj zoo tias cheem nyob los partially hydrolyzed (DH 87–89%) noog li yuav tsum ua hauv tsis muaj zoo tau processing. China’s leading suppliers, sib ntsiag Sichuan Vinylon thiab Guangzhou Minwei, yuav muaj competitive prices, thiab discounts ntawm orders qhia xyoo 10 tons. Short-term price fluctuations yog muaj influence ntawm raw material costs (vinyl acetate, methanol) thiab global supply-demand dynamics.