Kugwiritsa ntchito mwatsopano ulusi wa polylactic acid pa matumba a tiyi

Tiyi wopangidwa m'matumba wakula mofulumira chifukwa cha ubwino wake wa "kuchuluka, ukhondo, kusavuta, ndi liwiro", ndipo msika wa tiyi wopangidwa m'matumba padziko lonse lapansi ukuwonetsa kukula mwachangu.

Monga zinthu zopangira matumba a tiyi,pepala losefera tiyiSizingofunika kungoonetsetsa kuti zosakaniza zogwira ntchito za tiyi zitha kulowa mwachangu mu supu ya tiyi panthawi yopangira mowa, komanso zimaletsa ufa wa tiyi womwe uli m'thumba kuti usalowe mu supu ya tiyi. Pambuyo pa zaka zambiri zopanga, zinthu zomwe zili mu pepala losefera tiyi zasintha pang'onopang'ono kuchokera ku gauze, pepala losefera, nayiloni, PET, PVC, PP ndi zinthu zina kupita ku ulusi wa chimanga.

Ulusi wa chimanga, womwe umadziwikanso kuti polylactic acid (PLA), umachokera ku zomera zongowonjezedwanso monga chimanga, mbatata, ndi udzu wa mbewu. Uli ndi mphamvu yogwirizana ndi zinthu zachilengedwe komanso kuwonongeka kwa zinthu zachilengedwe, umathandiza kupha mabakiteriya, komanso umatha kupuma mosavuta. Sungagwiritsidwe ntchito popanga matumba a tiyi osalukidwa okha, komanso umagwiritsidwa ntchito m'munda wonyowa wopanga mapepala kuti apange mapepala ophikira chakudya monga matumba a tiyi, matumba a khofi, ndipepala losefera.

Kotero, poganizira kwambiri za momwe zinthuzo zimagwirira ntchito, kodi ubwino waukulu wogwiritsa ntchito ulusi wa PLA popanga mapepala onyowa ndi uti?

1. Zinthuzo ndi zachilengedwe ndipo zimatha kukhudzana ndi chakudya

Zinthu zopangira ulusi wa polylactic acid zimachokera ku zinthu zongowonjezedwanso kuchokera ku zomera. Monga zinthu zovomerezeka zotetezera chakudya, ulusi wa polylactic acid ungagwiritsidwe ntchito kwambiri m'mitundu yosiyanasiyana ya chakudya, mankhwala, ndi mapepala ena apakhomo omwe amafunidwa kwambiri. Kutengera kugwiritsa ntchito matumba a tiyi ndi mapepala osefera khofi mwachitsanzo, kuwayika mwachindunji m'madzi otentha popanda pulasitiki kapena zinthu zina zovulaza kumakhala kothandiza kwambiri pathupi la munthu.

2. Kuwonongeka kwa zinthu zachilengedwe

Potengera kugwiritsa ntchito matumba a tiyi mwachitsanzo, matumba ambiri a tiyi omwe amatayidwa nthawi imodzi amadyedwa padziko lonse lapansi tsiku lililonse. Matumba a tiyi opangidwa kuchokera ku zinthu zachikhalidwe amakhala ndi nthawi yayitali yowononga, zomwe zimapangitsa kuti chilengedwe chikhale chovuta kwambiri. Komabe, matumba a tiyi kapena zinthu zina zopangidwa kuchokera ku zinthu za polylactic acid zimatha kuwonongeka bwino.

Zinthu zopangidwa ndi ulusi wa polylactic acid zomwe sizili zolukidwa zimatha kusungunuka kwathunthu kukhala carbon dioxide ndi madzi ndi tizilombo toyambitsa matenda m'malo achilengedwe okhala ndi kutentha ndi chinyezi china, monga mchenga, matope, ndi madzi a m'nyanja. Zinyalala za zinthu zopangidwa ndi polylactic acid zimatha kusungunuka kwathunthu kukhala carbon dioxide ndi madzi pansi pa mikhalidwe ya manyowa a mafakitale (kutentha 58 ℃, chinyezi 98%, ndi mikhalidwe ya tizilombo toyambitsa matenda) kwa miyezi 3-6; Kudzaza zinyalala m'malo achikhalidwe kumathanso kuwonongeka mkati mwa zaka 3-5.

3. Zingasakanizidwe ndi zamkati zamatabwa kapena ulusi wina wachilengedwe kuti zigwiritsidwe ntchito

Ulusi wa polylactic acid nthawi zambiri umasakanikirana ndi ulusi wa pulp wamatabwa, nanofibers, ndi zina zotero kuti apange zamkati ndi pepala. Polylactic acid makamaka imagwira ntchito yolumikizana ndi kulimbitsa, polumikiza ulusi wina kudzera mu kutentha ndi kutentha kuti ikwaniritse cholinga chopangira chimango ndi kulimbitsa. Kuphatikiza apo, posintha chiŵerengero cha slurry ndi njira yokonzera, imatha kukwaniritsa zosowa zosiyanasiyana za zochitika zosiyanasiyana.

4. Kugwirizana kwa kutentha kwa akupanga kumatha kuchitika

Pogwiritsa ntchito ulusi wa polylactic acid popanga zamkati ndi mapepala, kulumikizana kwa kutentha kwa ultrasonic kumatha kuchitika popanga zinthu zina, zomwe sizimangopulumutsa ntchito komanso zimachepetsa ndalama, komanso zimathandizira kuti ntchito iyende bwino.

5. Kusefa magwiridwe antchito

Pepala losefera tiyi lopangidwa ndi ulusi wa polylactic acid lili ndi mphamvu yabwino yosefera komanso mphamvu zambiri zonyowa, zomwe zimatha kusunga masamba a tiyi ndi tinthu tina tolimba bwino, pomwe limalola kukoma ndi fungo la tiyi kulowa mokwanira.
Kuwonjezera pa pepala losefera tiyi, ulusi wa polylactic acid ungagwiritsidwenso ntchito mu pepala losefera la mankhwala achi China, pepala losefera khofi, ndi mapepala ena osungira chakudya.