Cov ntaub ntawv ntim yas tau dhau los ua ib feem tseem ceeb ntawm kev lag luam ntim niaj hnub vim lawv qhov zoo xws li lub teeb, durability, thiab tus nqi qis. Tsab ntawv xov xwm no yuav qhia koj txog cov yam ntxwv, kev siv, thiab kev txhim kho ntawm ntau yam khoom siv ntim yas.
1. Cov khoom siv ntim khoom siv ntau yam
Polyethylene (PE):
Khoom:Tsis yog - tshuaj lom thiab tsis muaj ntxhiab, nrog qhov tsis zoo - kub tsis kam, yoog raws, thiab tshuaj lom neeg ruaj khov, tab sis tsis muaj cua sov ua haujlwm.
Daim ntawv thov:Cov khoom ntim yas uas siv ntau tshaj plaws, feem ntau yog siv hauv hnab yas, lub raj mis yas, thiab zaj duab xis yas.
Kev faib tawm:
Tsawg- ntom polyethylene (LDPE):Mos thiab pob tshab, feem ntau siv hauv hnab yas thiab qhwv yas.
High- ntom polyethylene (HDPE):Cov tawv tawv heev thiab kub heev-tiv taus, feem ntau yog siv rau hauv lub raj mis mis thiab tshuaj zawv plaub hau.
Polypropylene (PP):
Khoom:Tsis yog - tshuaj lom thiab tsis muaj ntxhiab, nrog rau cov cua kub zoo, tshuaj lom neeg ruaj khov, thiab lub zog txhua yam, tab sis nws ua rau brittleness ntawm qhov kub thiab txias.
Daim ntawv thov:Feem ntau siv hauv microwaveable noj su thawv, yogurt khob, haus lub raj mis, thiab lwm yam.
Polyethylene terephthalate (PET):
Khoom:High transparency, zoo txhua yam muaj zog, tshav kub tsis kam, thiab barrier zog, tab sis nws yooj yim rau roj nqus.
Daim ntawv thov:Feem ntau siv nyob rau hauv lub raj mis haus, ua noj roj fwj, condiment fwj, thiab lwm yam.
Polyvinyl chloride (PVC):
Khoom:High transparency, zoo mechanical zog, tshuaj tiv thaiv, thiab nplaim retardancy, tab sis tsis zoo thermal stability thiab nquag decomposition thaum rhuab los tsim cov teeb meem tshuaj.
Daim ntawv thov:Feem ntau siv nyob rau hauv pob tshab ntim thawv, blister packs, credit cards, thiab lwm yam.
Polystyrene (PS):
Khoom:High transparency, zoo rigidity, printability, thiab yooj yim ntawm kev ua, tab sis kuj brittleness thiab tsis zoo tshav kub kuj.
Daim ntawv thov:Feem ntau siv rau hauv cov khoom siv pov tseg, cov thawv ntim khoom noj ceev, cov ntaub ntawv CD, thiab lwm yam.
Kev faib tawm:
General -lub hom phiaj polystyrene (GPPS):High transparency thiab rigidity, tab sis kuj nkig.
High- cuam tshuam polystyrene (HIPS):Qhov sib ntxiv ntawm cov roj hmab txhim kho qhov cuam tshuam tsis zoo tab sis txo qhov pom tseeb.
2. Kev xaiv cov qauv ntawm cov khoom ntim yas
Thaum xaiv cov khoom ntim yas tsim nyog, xav txog cov hauv qab no:
Cov yam ntxwv ntawm cov khoom:Qhov no suav nrog cov khoom zoo, qhov hnyav, thiab kev cia khoom.
Ntim Cov Lus Qhia:Ntim Cov Lus Qhia: rier zog, kub tsis kam, txias tsis kam, pob tshab, luam ntawv, thiab lwm yam.
Tus nqi tswj:Xaiv - cov ntaub ntawv raug nqi qis dua thaum ua tau raws li qhov yuav tsum tau ntim khoom.
Environmental Protection Requirements:Xaiv cov khoom siv rov ua dua tshiab thiab degradable ib puag ncig tus phooj ywg.
3. Txoj kev loj hlob ntawm cov khoom ntim yas
Lub teeb yuag:Los ntawm kev txhim kho cov khoom tsim thiab cov txheej txheem ua tiav, cov tuab thiab qhov hnyav ntawm cov khoom ntim yas tuaj yeem raug txo, yog li txo cov peev txheej siv.
Functionalization:Tsim cov khoom ntim yas nrog cov tshuaj tua kab mob, tshiab - khaws cia, thiab tiv thaiv - cov khoom cuav kom ua tau raws li qhov xav tau ntim ntawm cov khoom sib txawv.
Environmentalization:Txhawb kev siv biodegradable thiab recyclable yas ntim cov ntaub ntawv los txo cov pa phem ib puag ncig.
4. Kev ceev faj rau kev siv cov khoom ntim yas
Ua tib zoo saib xyuas qhov siv tau ntawm cov khoom ntim yas thiab tsis txhob siv lawv dhau qhov kev txwv.
Tsis txhob tso cov khoom ntim rau qhov kub thiab txias ntev ntev kom tsis txhob tso cov khoom tsis zoo.
Sim xaiv cov khoom siv rov ua dua tshiab thiab degradable ib puag ncig tus phooj ywg yas ntim khoom kom txo tau cov pa phem ib puag ncig.
Cov khoom ntim yas ua lub luag haujlwm tseem ceeb hauv kev lag luam ntim niaj hnub. Nrog rau kev nce qib ntawm thev naus laus zis thiab kev txhim kho ntawm kev paub txog ib puag ncig, cov ntaub ntawv ntim yas yuav txhim kho nyob rau hauv kev coj ua kom hnyav dua, ua haujlwm zoo thiab ib puag ncig zoo.
