Dab tsi yog qhov txawv ntawm PU thiab PVC khoom?

PU thiab PVC yog ob qho khoom siv hluavtaws uas nrov siv hauv kev tsim khoom ntawm ntau yam khoom. Txawm hais tias lawv ob leeg muaj cov khoom zoo sib xws thiab kev siv, muaj qee qhov sib txawv tseem ceeb ntawm lawv uas ua rau txhua yam khoom tshwj xeeb. Hauv tsab xov xwm no, peb yuav tshawb txog qhov sib txawv ntawm PU thiab PVC cov ntaub ntawv.

PU (Polyurethane) yog cov khoom siv thermoplastic uas tuaj yeem siv los tsim ntau yam khoom, nrog rau cov khaub ncaws, khau, rooj tog zaum, thiab cov khoom ua si. Nws yog cov khoom siv ruaj khov uas hloov tau yooj yim thiab lub teeb yuag, ua rau nws zoo tagnrho rau siv ntau yam lag luam. PU kuj yog dej-resistant, ua rau nws yog ib qho kev xaiv nrov rau cov khoom sab nraum zoov.

PVC (Polyvinyl Chloride) yog cov yas hluavtaws uas siv rau hauv ntau daim ntawv thov kev lag luam. Nws feem ntau pom muaj nyob rau hauv cov khoom siv, xws li cov kav dej, cables, flooring, thiab ru tsev. PVC kuj tseem siv rau hauv kev tsim khoom siv kho mob, khoom siv tsheb, thiab khoom siv hluav taws xob. PVC yog nruj thiab muaj zog, ua rau nws zoo tagnrho rau siv hauv cov khoom uas xav tau lub zog thiab kav ntev.

Ib qho ntawm qhov sib txawv tseem ceeb ntawm PU thiab PVC yog lawv qhov yooj. PU yog hloov tau thiab pliable dua li PVC, ua rau nws zoo tagnrho rau siv nyob rau hauv cov khoom uas yuav tsum tau ib tug softer kov. Qhov no yog vim li cas PU feem ntau pom muaj nyob rau hauv cov khaub ncaws thiab khau, vim nws xis nyob thiab tuaj yeem ua raws li cov duab ntawm lub cev. PVC, ntawm qhov tod tes, yog qhov tawv thiab tawv, ua rau nws xaiv zoo rau cov khoom uas yuav tsum tau muaj cov khoom siv ruaj khov thiab ruaj khov.

Lwm qhov sib txawv ntawm PU thiab PVC yog lawv cov kev cuam tshuam ib puag ncig. PU yog suav tias yog ib puag ncig zoo dua li PVC. PU yog cov khoom siv polymer uas yog tsim los ntawm cov khoom siv txuas ntxiv, xws li taum pauv lossis pob kws. Qhov no txhais tau hais tias nws yog biodegradable thiab tsis tso cov co toxins rau hauv ib puag ncig. PVC, ntawm qhov tod tes, yog tsim los ntawm cov roj av, uas yog cov khoom siv tsis tau txuas ntxiv dua tshiab. Qhov no txhais tau hais tias nws tsis yog biodegradable thiab tuaj yeem tso tawm cov co toxins rau hauv ib puag ncig.

Tus nqi ntawm cov ntaub ntawv PU thiab PVC tuaj yeem sib txawv. PU feem ntau kim dua li PVC vim tias nws yog cov khoom siv tshiab uas tseem xav tau siab. PVC yog cov khoom qub uas tau nyob ib puag ncig ntev, ua rau nws tsis tshua kim dua PU. Txawm li cas los xij, tus nqi ntawm txhua yam khoom yuav nyob ntawm seb cov khoom tshwj xeeb raug tsim thiab cov nqi tsim khoom.

Hauv kev xaus, PU thiab PVC yog ob qho khoom siv hluav taws xob nrov uas siv rau hauv kev tsim khoom ntawm ntau yam khoom. Thaum lawv muaj cov khoom zoo sib xws thiab kev siv, muaj qee qhov sib txawv tseem ceeb ntawm lawv uas ua rau txhua yam khoom tshwj xeeb. PU yog hloov tau yooj yim dua thiab ib puag ncig zoo dua li PVC, thaum PVC muaj zog dua thiab qis dua PU. Thaum kawg, kev xaiv ntawm PU thiab PVC yuav nyob ntawm seb qhov kev xav tau tshwj xeeb ntawm cov khoom tsim thiab cov txheej txheem tsim khoom.