China Kodi opanga mowa wa polyvinyl (PVA) ndi ogulitsa

Kodi polyvinyl alcohol (PVA) Chithunzi Chowonetsedwa ndi chiyani

Kodi mowa wa polyvinyl (PVA) ndi chiyani

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Zogulitsa Tags

Kodi mowa wa polyvinyl (PVA) ndi chiyani?

Kodi mowa wa polyvinyl ndi wotetezeka?

PVA nthawi zambiri imasokonezedwa ndi polyvinyl acetate (PVAc), guluu wamatabwa, ndi polyvinyl chloride (PVC), zinthu zomwe zimakhala ndi phthalates ndi zitsulo zolemera. Onse atatu ndi ma polima, koma ndi zinthu zosiyana kotheratu.

Mowa wa Polyvinyl ndi polima wopanda poizoni, wosawonongeka, ndipo zinthu zomwe zili ndi PVA ndizotetezeka kugwiritsa ntchito komanso zotetezeka kudyedwa. Bungwe la Environmental Working Group lidazitcha kuti ndizowopsa kwambiri pazodzikongoletsera, ndipo bungwe la Food and Drug Administration lavomereza PVA kuti igwiritsidwe ntchito popaka zakudya komanso kugwiritsa ntchito mankhwala.

Kodi mowa wa polyvinyl umasungunuka m'madzi?

Inde, PVA imatha kusungunuka mwachangu, ngakhale m'madzi ozizira. Filimu ya PVA ikasungunuka, mitundu 55 iliyonse ya tizilombo toyambitsa matenda yomwe imapezeka m'makina amadzi otayira imatha kuwononga zomwe zatsala mufilimuyo.

Anthu ena ali ndi nkhawa ngati tizilombo tating'onoting'ono timeneti tilipo m'magulu akulu mokwanira kuti tiwononge filimu ya PVA. Nkhani yabwino ndiyakuti makina ambiri amadzi oyipa amakhala ndi tizilombo toyambitsa matenda tokwanira, motero PVA imatengedwa kuti ndi zinthu zomwe zimatha kuwonongeka mosavuta.

Kodi PVA ndi gwero la microplastics?

Kanema wa PVA samathandizira kuipitsa kwa microplastic kapena kukwaniritsa matanthauzo aliwonse a microplastic: siing'ono-kapena nano-size, ndi sungunuka m'madzi kwambiri, ndipo ndi biodegradable. Kafukufuku wochokera ku American Cleaning Institute adawonetsa kuti pafupifupi 60% ya filimu ya PVA imawonongeka mkati mwa masiku 28, ndipo pafupifupi 100% imawonongeka mkati mwa masiku 90 kapena kuchepera.

Kodi mowa wa polyvinyl ndi woyipa kwa chilengedwe?

Mowa wa polyvinyl udapangidwa kuti uzitha kuwonongeka kwathunthu, ndipo sumakhetsa kapena kusweka kukhala ma microplastics nthawi iliyonse. Kanema wa PVA akasungunuka ndikutsuka kukhetsa, amawonongeka ndi zamoyo m'madzi onyansa - ndipo ndiko kutha kwa moyo wa PVA.

Chifukwa chiyani ndikumva ambiri ogulitsa PVA pompano?

Ogulitsa ena apereka maphunziro omwe sagwirizana ndi kafukufuku wodziyimira pawokha wokhudzana ndi mowa wa polyvinyl, zomwe zimapangitsa chisokonezo kuzungulira zomwe JINJI ndi ogulitsa ena amagulitsa. Ndipo izo ziri bwino! Tikufuna kuti makasitomala a JINJI - komanso ogula onse - akhale ndi chidwi chofuna kudziwa zazinthu zomwe amagwiritsa ntchito. Koma ndikofunikira kuyang'ana maphunziro odziyimira pawokha musanapange malingaliro anu ndikusintha zomwe mumagula. Khalani ndi chidziwitso chochokera kuzinthu zodziwika bwino, zopanda tsankho kuti zikuthandizeni kupewa kunyengedwa ndi greenwashing - kapena kukhumudwitsidwa ndi mantha.

Polyvinyl mowa ndi chilengedwe

Kodi mankhwala a JINJI ali ndi PVA?

PVA, yomwe imatchedwanso PVOH kapena PVAI, ndi polima yopangidwa yomwe ilibe mtundu komanso yopanda fungo. Chomwe chimapangitsa mowa wa polyvinyl kukhala wapadera kwambiri ndikuti umasungunuka m'madzi, yomwe ndi njira yabwino yonenera kuti umasungunuka m'madzi. Chifukwa cha kusungunuka kwake m'madzi, PVA imagwiritsidwa ntchito nthawi zambiri ngati chopaka filimu pa zovala ndi zotsukira mbale, koma imapezekanso muzinthu monga zodzoladzola, shamposi, madontho a maso, mapaketi a zakudya, ndi makapisozi a mankhwala.

JINJI RDP imagwiritsa ntchito zida za PVA zomwe sizisungunuka m'madzi komanso zimatha kuwonongeka. Kachitidwe ka PVA ndi VAE kamene kadzayanika ndikupanga ufa wa RDP.

JINJI ali ndi cholinga chopanga njira zokometsera zachilengedwe zopangira zinthu zapakhomo komanso zosamalira anthu komanso zodzikongoletsera. Tikufuna kupanga zofunikira zapakhomo zomwe zimathandizira zothetsera chilengedwe m'malo mowononga chilengedwe. Tikuchotsa zopangira pulasitiki pazinthu zathu ndikuchita gawo lathu kuti tipeze tsogolo lokhazikika.

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