Cov cuab yeej yas siv dav siv los ua cov cuab yeej siv tshuaj tua kab hauv kev ua liaj ua teb, hav zoov, thiab kev noj qab haus huv rau pej xeem. Lawv qhov kev ua tau zoo thiab kev ua neej nyob feem ntau nyob ntawm cov khoom siv. Tam sim no, cov cuab yeej siv tseem ceeb yog ua los ntawm polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), thiab engineering plastics xws li ABS. Txhua yam khoom muaj qhov tshwj xeeb ntawm lub cev thiab tshuaj lom neeg tsim nyog rau kev siv sib txawv.
Polyethylene (PE) yog ib qho ntawm cov khoom siv tshaj plaws rau cov cuab yeej yas, dav siv rau nws yooj yim, cuam tshuam, thiab kev ruaj ntseg tshuaj. High- ntom polyethylene (HDPE) feem ntau yog siv los tsim cov cuab yeej cuab lub cev, muaj peev xwm tiv taus ntev - lub sij hawm sab nraum zoov tsis muaj deformation lossis tawg. PE kuj muaj qee qhov kev tiv thaiv rau ultraviolet (UV) hluav taws xob, tab sis kom txuas ntxiv nws txoj sia, ntau lub tshuab cuab yeej ntxiv UV inhibitors rau saum npoo los txhim kho nws cov kav ntev hauv tshav ntuj ncaj qha.
Polypropylene (PP), vim nws cov cua kub tsis kam thiab rigidity, feem ntau yog siv rau cov cuab yeej cuab tam uas yuav tsum tau muaj zog dua, xws li hau, brackets, thiab lure ntim. PP tiv thaiv softening ntawm qhov kub thiab txias thiab nthuav tawm qhov ua haujlwm zoo rau ntau yam tshuaj lom neeg, ua rau nws tsim nyog rau cov ntxiab uas muaj cov tshuaj tua kab lossis tshuaj tua kab. PP lub ntsej muag du kuj ua rau nws yooj yim los ntxuav thiab rov siv dua, txo cov nqi ntev -.
Polyvinyl chloride (PVC) tseem siv tau rau qee qhov qis - tus nqi ntxiab, tab sis nws cov huab cua tsis zoo thiab nws muaj hnub nyoog yooj yim thiab ua nkig nyob rau hauv qhov raug UV ntev. Yog li ntawd, nws feem ntau yuav tsum tau ntxiv cov stabilizers los yog compounding nrog lwm cov ntaub ntawv. Nyob rau hauv sib piv, engineering plastics xws li ABS (acrylonitrile-butadiene-styrene copolymer) feem ntau yog siv nyob rau hauv siab -kawg ntxiab, xws li cov cuab yeej ntse xav tau cov qauv meej lossis cov khoom siv hluav taws xob, vim lawv qhov kev ua tau zoo tag nrho. ABS sib xyaw ua ke muaj zog, muaj zog tiv thaiv, thiab kev ua haujlwm zoo, ua rau nws tsim nyog rau cov qauv tsim.
Hauv cov ntsiab lus, kev xaiv cov khoom siv rau cov ntxiab yas yuav tsum muaj kev xav txog kev ua haujlwm ntev, ib puag ncig kev sib raug zoo, thiab tus nqi. Nyob rau hauv lub neej yav tom ntej, nrog rau kev nce qib hauv cov ntaub ntawv tshawb fawb, kev siv cov khoom zoo ib puag ncig xws li biodegradable plastics tuaj yeem txhawb kev txhim kho kev lag luam hauv kev lag luam.
