Hauv kev ntim khoom yooj yim, PO hnab yas, PE hnab yas, thiab PP hnab yas txhua tus muaj cov yam ntxwv ua tau zoo thiab kev tso npe thov vim qhov sib txawv ntawm cov khoom thiab cov txheej txheem. Kev nkag siab meej txog qhov sib txawv ntawm PO hnab yas thiab lwm cov hnab yas uas muaj peev xwm pab tau kom ua tiav kev sib tw thiab kev ua kom zoo ntawm cov khoom siv hauv kev xaiv thiab daim ntawv thov, ua tau raws li qhov xav tau ntim ntawm cov xwm txheej sib txawv.
Los ntawm kev xav ntawm cov khoom muaj pes tsawg leeg, PO hnab yas feem ntau yog ua los ntawm polyolefin blends los yog co-extrusion systems, feem ntau yog ib qho kev sib xyaw ntawm linear low-density polyethylene (LLDPE) thiab polypropylene (PP), los yog koom nrog metallocene-catalyzed polyolefins cov khoom siv thiab cov qauv kev sib xyaw ua ke rau cov qauv atomer. nruj. PE hnab yas, ntawm qhov tod tes, siv ib qho polyethylene (xws li LDPE, LLDPE, thiab HDPE) ua cov khoom siv raw, hais txog qhov yooj yim, tshuaj tiv thaiv, thiab cua sov yooj yim - sealing zog ntawm polyethylene. PP hnab yas, txawm li cas los xij, feem ntau yog ua los ntawm polypropylene, qhia txog qhov siab nruj, tiv thaiv tshav kub, thiab qaug zog ntawm polypropylene. Cov khoom sib txawv no ncaj qha txiav txim siab kev taw qhia ntawm lawv cov khoom siv tshuab thiab thermal.
Hais txog cov khoom siv kho tshuab, PO hnab yas, vim yog qhov sib ntxiv ntawm PP cov khoom, feem ntau muaj lub zog tensile zoo, nruj, thiab puncture tsis kam tshaj li cov hnab LDPE zoo tib yam. Lawv kuj hloov tau yooj yim dua li cov hnab PP ntshiab, ua rau lawv tsis tshua muaj kev tawg nyob rau hauv cov khoom hnyav lossis rov ua dua. PE hnab yog mos thiab muaj cushioning zoo, tab sis lawv cov load-cov kabmob thiab kev cuam tshuam tsis kam yog qhov txwv. PP hnab muaj qhov nruj tshaj plaws thiab zoo heev khaws cia, tab sis nws yuav ua rau tawg ntawm qhov kub thiab txias los yog nyob rau hauv siab vim lawv brittleness.
Hais txog cov khoom siv hluav taws xob, PO hnab muaj cov cua sov qis dua- sealing pib kub thiab lub foob muaj zog dua, qhov kub ntau dua, thiab tuaj yeem tiv taus qhov kub siab dua rau lub sijhawm luv. Lawv qhov qis - qhov kub thiab txias hloov tau zoo dua li PP hnab. PE hnab muaj qhov zoo heev uas tsis tshua muaj - qhov kub thiab txias, tab sis tsis muaj zog tiv thaiv tshav kub, thiab nws yooj yim rau softening thiab deformation ntawm qhov kub thiab txias. PP hnab muaj qhov kub thiab txias siab tshaj plaws, thiab tuaj yeem tswj tau lawv cov duab rau lub sijhawm luv luv hauv cov dej kub npau lossis siab - qhov kub thiab txias, tab sis kub- sealing lawv yog qhov nyuaj dua thiab yuav tsum muaj cov cuab yeej tshwj xeeb thiab cov txheej txheem.
Hais txog qhov tsos thiab kev ntxhib los mos, PO hnab muaj tag nrho, puag ncig thiab sib txawv folds. Nyob ntawm cov qauv, lawv tuaj yeem ua tiav siab lossis ib nrab- pob tshab, matte lossis glossy tiav, sib txuas ua kom zoo nkauj nrog kev xav zoo thiab ruaj khov. PE hnab muaj softer, ilv saum npoo, nrog pob tshab sib txawv nyob ntawm seb qhov ceev, thiab ib tug me ntsis slippery. PP hnab muaj ib tug du nto thiab muaj zog rigidity, nrog zoo folding resilience, tab sis lawv yuav ua nkig nyob rau hauv qis kub.
Nyob rau hauv cov nqe lus ntawm daim ntawv thov, PO hnab, vim lawv ua ke ntawm rigidity thiab saj zawg zog thiab zoo heev tshav kub- sealing zog, yog dav siv nyob rau hauv hnyav- lub luag hauj lwm logistics ntim, zaub mov preservation, industrial cov khoom tiv thaiv, thiab daim ntawv thov yuav tsum tau zoo zoo tuav. PE hnab yog haum rau lub teeb-lub luag hauj lwm, tub yees, cov khoom tshiab, thiab cov neeg siv khoom ntim txhua hnub. Lub hnab PP feem ntau yog siv rau ntim uas yuav tsum tau siab - qhov kub thiab txias thiab cov duab ruaj khov, xws li lub hnab khob cij, ntim khoom qab zib, thiab cov hnab ntim khoom noj uas siv tau pov tseg.
Zuag qhia tag nrho, PO lub hnab yas sib txawv ntawm ib qho - cov khoom PE thiab PP hnab hauv lawv cov khoom sib xyaw thiab kev ua haujlwm sib npaug, sib txuas lub zog, yoog raws, thiab cua sov-kev sib khi zoo, ua kom pom qhov sib txawv thiab kev sib tw hauv nruab nrab- mus rau - siab- qhov kawg packing sector, uas hais txog kev ntim khoom.