Txoj kev tsim cov hnab ntim khoom biodegradable

Kev tsim cov hnab ntim khoom biodegradable pib nrog xaiv cov khoom siv raw raws li cov khoom xav siv. Cov ntaub ntawv muaj xws li PLA, PBAT, hmoov txhuv nplej siab- cov ntaub ntawv raws li, thiab lwm yam biodegradable polymers, txhua tus muaj cov khoom sib txawv thiab cov kev xav tau ua. Ua ntej kev tsim khoom, cov khoom siv raw yog proportioned thiab sib tov, nrog rau cov additives tsim nyog incorporated los xyuas kom meej cov khoom muaj qhov xav tau yooj, lub zog, thiab processability. Thaum cov ntaub ntawv raw tau npaj, lawv tau muab tso rau hauv lub xeev tsim nyog rau kev ua haujlwm.

 

Lub hnab ntim biodegradable feem ntau yog tsim los ntawm kev tsim cov yeeb yaj kiab los ntawm txoj kev xws li tshuab tshuab extrusion lossis cam khwb cia zaj duab xis extrusion. Noj cov txheej txheem cua tshuab ua piv txwv, cov khoom siv raw khoom nkag mus rau hauv extruder thiab yaj ntawm qhov kub thiab txias; cov yaj yog ces extruded los ntawm ib tug tuag los ua ib tug tubular zaj duab xis, uas yog inflated nrog huab cua thiab tom qab txias los tsim ib tug nruam zaj duab xis. Tom qab tsim, zaj duab xis undergoes hauling thiab winding, nrog thickness thiab dav tswj raws li cov khoom specifications. Rau siab - ntim kev ua tau zoo, ntau- txheej co-extrusion tuaj yeem ua haujlwm los ua ke cov khoom sib txawv, yog li ua kom cov yeeb yaj kiab muaj zog, dej tsis kam, thiab sealing zog.

 

Cov kauj ruam tom ntej ua tiav suav nrog kev luam ntawv, lub hnab ntim khoom, thiab kev sib khi thaum tshav kub kub. Nyob ntawm kev siv cov kev xav tau, cov npe khoom, cov qauv, thiab cov cim npe tuaj yeem luam tawm ntawm cov yeeb yaj kiab ua ntej nws txiav mus rau qhov ntev. Cov yeeb yaj kiab txiav yog kaw ntawm cov npoo uas siv cov cua sov- cov khoom sib khi, thiab cov yam ntxwv xws li cov tes tuav lossis kaw cov txheej txheem raug ntxiv raws li xav tau. Nyob rau hauv cov txheej txheem no, tsis muaj xws li tshav kub- sealing kub, siab, thiab ntev yuav tsum tau ua tib zoo tswj kom tsis txhob muaj teeb meem xws li cov ntsaws ruaj ruaj tsis muaj zog los yog zaj duab xis deformation.

 

Kev kuaj xyuas zoo yog ua tiav ntawm lub hnab, npog qhov ntev, qhov pom, tuab, lub zog foob, thiab thauj khoom -cov kabmob muaj peev xwm. Rau cov khoom npaj rau ntim khoom noj, ua raws li cov qauv kev nyab xeeb tseem raug txheeb xyuas. Thaum pom zoo, cov hnab ntim tau raug teeb tsa thiab ntim raws li cov lus qhia tshwj xeeb, tom qab ntawd muab khaws cia rau hauv qhov chaw qhuav, zoo - qhov cua nyob deb ntawm tshav ntuj ncaj qha. Los ntawm kev tswj cov theem zoo xws li kev xaiv cov khoom siv raw, tsim, luam ntawv, thiab lub hnab ua, tag nrho cov hnab ntim khoom biodegradable tuaj yeem ua kom zoo kom tau raws li cov kev xav tau.