B. Yuav tsum muaj cov ntaub ntawv sib txawv hauv cov ntawv pov thawj zaub mov
Cov khoom sib txawv ntawmdaim ntawv khobxav tau cov kev xeem thiab tshuaj ntsuam xyuas hauv cov ntawv pov thawj qib zaub mov. Qhov no tuaj yeem ua kom nws txoj kev nyab xeeb thiab kev noj qab haus huv hauv kev sib cuag nrog zaub mov. Cov txheej txheem ntawm cov ntawv pov thawj qib zaub mov tuaj yeem ua kom ntseeg tau tias cov khoom siv hauv cov khob ntawv muaj kev nyab xeeb thiab tsis muaj mob, thiab ua tau raws li cov qauv thiab cov kev xav tau ntawm kev sib cuag zaub mov.
1. Cov txheej txheem ntawv pov thawj zaub mov rau cov duab los qhia
Raws li ib qho ntawm cov ntaub ntawv tseem ceeb rau cov ntawv khob, cov duab los qhia yuav tsum tau ntawv pov thawj qib zaub mov kom ntseeg tau tias nws muaj kev nyab xeeb. Cov txheej txheem ntawv pov thawj qib zaub mov rau cardboard feem ntau suav nrog cov kauj ruam hauv qab no:
ib. Raw khoom kuaj: Tshuaj lom neeg muaj pes tsawg leeg tsom xam ntawm cov ntaub ntawv raw khoom. Qhov no ua kom ntseeg tau tias tsis muaj cov tshuaj phem tshwm sim. Xws li cov hlau hnyav, tshuaj lom neeg, thiab lwm yam.
b. Kev ntsuas lub cev ua haujlwm: Ua kev ntsuas kev ua tau zoo ntawm cov duab los qhia. Xws li lub zog tensile, dej tsis kam, thiab lwm yam. Qhov no ua kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm cov duab los qhia thaum siv.
c. Migration test: Muab cov duab los qhia hauv kev sib cuag nrog cov zaub mov simulated. Saib xyuas seb puas muaj cov tshuaj nkag mus rau hauv cov zaub mov tsis pub dhau lub sijhawm los ntsuas qhov kev nyab xeeb ntawm cov khoom.
d. Roj pov thawj: Ua cov txheej txheem kuaj ntawm daim duab los qhia. Qhov no ua kom lub khob ntawv muaj roj zoo.
e. Kev kuaj kab mob microbial: Ua kev kuaj kab mob microbial ntawm daim duab los qhia. Qhov no tuaj yeem ua kom ntseeg tau tias tsis muaj kab mob microbial xws li kab mob thiab pwm.
2. Cov txheej txheem ntawv pov thawj zaub mov rau PE coated ntawv
PE coated ntawv, raws li cov khoom siv txheej txheej rau cov khob ntawv, kuj yuav tsum tau ntawv pov thawj qib zaub mov. Nws cov txheej txheem ntawv pov thawj suav nrog cov kauj ruam tseem ceeb hauv qab no:
ib. Kev ntsuam xyuas cov khoom muaj pes tsawg leeg: Ua tshuaj lom neeg muaj pes tsawg leeg ntawm cov khoom siv PE txheej. Qhov no ua kom ntseeg tau tias nws tsis muaj cov tshuaj phem.
b. Kev kuaj kev tsiv teb tsaws: Muab PE coated ntawv nyob rau hauv kev sib cuag nrog simulated zaub mov rau ib lub sij hawm. Qhov no yog saib xyuas seb puas muaj cov tshuaj twg tau tsiv mus rau hauv cov zaub mov.
c. Thermal stability test: Simulate stability thiab kev nyab xeeb ntawm PE txheej cov ntaub ntawv nyob rau hauv kub kub.
d. Kev kuaj khoom noj khoom haus: Hu rau PE coated ntawv nrog ntau hom zaub mov. Qhov no yog los ntsuas nws qhov tsim nyog thiab kev nyab xeeb rau cov khoom noj sib txawv.
3. Cov txheej txheem ntawv pov thawj zaub mov rau PLA biodegradable cov ntaub ntawv
PLA biodegradable cov ntaub ntawv yog ib qho ntawm cov neeg sawv cev ntawm ib puag ncig tus phooj ywg cov ntaub ntawv. Nws kuj yuav tsum tau ntawv pov thawj zaub mov. Cov txheej txheem ntawv pov thawj suav nrog cov kauj ruam tseem ceeb hauv qab no:
ib. Kev ntsuam xyuas cov ntaub ntawv muaj pes tsawg leeg: Ua kev ntsuam xyuas muaj pes tsawg leeg ntawm PLA cov ntaub ntawv. Qhov no tuaj yeem ua kom ntseeg tau tias cov khoom siv raw siv tau raws li qib zaub mov xav tau thiab tsis muaj cov tshuaj phem.
b. Kev ntsuas kev ua haujlwm degradation: Simulate lub ntuj ib puag ncig, sim qhov degradation tus nqi ntawm PLA nyob rau hauv cov xwm txheej sib txawv thiab kev nyab xeeb ntawm cov khoom degradation.
c. Kev xeem tsiv teb tsaws: Muab cov ntaub ntawv PLA sib cuag nrog cov zaub mov simulated rau ib lub sijhawm. Qhov no tuaj yeem saib xyuas seb puas muaj cov tshuaj twg tau tsiv mus rau hauv cov zaub mov.
d. Kev kuaj kab mob microbial: Ua kev sim microbial ntawm PLA cov ntaub ntawv. Qhov no ua kom ntseeg tau tias nws tsis muaj kab mob microbial xws li kab mob thiab pwm.