Video: Cov khoom siv hluavtaws zoo li cas?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Synthetic fabrics , xws li nylon thiab polyester, yog tsim los ntawm cov tshuaj. Synthetic fabrics yog pab tau vim lawv muaj qhov sib txawv los yog txhim kho (kho) cov khoom sib piv rau ntuj cov ntaub ntawv . Piv txwv li, yas raincoats yog waterproof, thiab stretchy Lycra® khaws nws cov duab qub.
Ib yam li ntawd, cov khoom siv hluavtaws siv rau dab tsi?
Kev piav qhia. Synthetic fibers yog tsim los ntawm synthesized polymers ntawm me me molecules. Cov compounds uas yog siv rau ua cov no fibers los ntawm raw cov ntaub ntawv xws li roj av chemicals lossis petrochemicals. Cov no cov ntaub ntawv yog polymerized rau hauv cov tshuaj uas khi ob lub atoms uas nyob ib sab.
Tsis tas li ntawd, cov khoom siv hluavtaws cuam tshuam rau zej zog li cas? Cov khoom siv hluavtaws yog ua los ntawm chemically hloov cov tshuaj pib rau tsim ib khoom nrog cov yam ntxwv sib txawv. Qee qhov piv txwv ntawm cov khoom siv hluavtaws yog yas, tshuaj, thiab roj tshiab. Ua thiab siv cov khoom siv hluavtaws muaj ob qho zoo thiab tsis zoo cuam tshuam rau zej zog.
Kuj tseem paub yog, cov khoom siv hluavtaws pab tau li cas rau ib puag ncig?
Cov khoom siv hluavtaws uas yog los ntawm cov khoom ntawm cov roj av tsis yog biodegradable, hluavtaws cov khoom siv sij hawm ntev rau decompose, tsim kom muaj kuab paug mus ntev. Nylon yog ib qho nyuaj rau rov ua dua, ua rau lawv nyuaj rau decompose, sib sau cov chaw pov tseg ntau dua. Polyesters yog ib qho yooj yim rau recycle, uas ua rau lawv tsis tshua muaj teeb meem rau lub zej zog.
Cov khoom siv hluavtaws puas zoo?
Ib txhia cov khoom siv hluavtaws muaj xws li nylon, polyester, acetate, acrylic, spandex, orlon, lastex thiab Kevlar. Thaum nws los txog rau khau, cov khoom siv hluavtaws muab lub teeb yuag dua thiab muab cov qib siab dua ntawm breathability. Tam sim no, feem ntau cov neeg feem ntau nug yog tias cov khoom siv hluavtaws rau nkawm khau tuaj yeem tsis muaj dej.
Pom zoo:
Ntev npaum li cas cov roj hluavtaws hluavtaws ntev ntev?
Tswb hais tias nrog cov roj hluavtaws thiab qee cov tuam txhab tsim khoom, lub sijhawm nruab nrab ntawm cov roj hloov tuaj yeem ua tau ntau, ntev dua: 'Qee zaum ntau li 15,000 mais lossis ib xyoos.' Qee tus kws kho tsheb, txawm li cas los xij, hais tias koj yuav tsum hloov koj cov roj txhua 5,000 mais txawm tias muaj roj hluavtaws
Cov khoom lag luam zoo li cas cuam tshuam txog kev txhais cov khoom zoo?
Khoom zoo qhov ntev. Lub yim yam khoom zoo qhov ntev yog: kev ua tau zoo, nta, kev cia siab, conformance, durability, serviceability, aesthetics thiab perceived zoo. Garvin's (1984; 1987) cov lus txhais rau txhua qhov loj me no tshwm sim hauv Table I
Kuv puas tuaj yeem siv cov roj hluavtaws tag nrho es tsis txhob siv hluavtaws sib xyaw?
Koj tuaj yeem hloov rov qab mus rau txhua lub sijhawm. Qhov tseeb, cov khoom siv hluavtaws tsuas yog sib xyaw ntawm cov roj hluavtaws thiab cov pa roj. Nws raug nquahu kom koj siv tib cov roj rau cov khoom siv ntxiv yog tias xav tau, yog li muab kev tiv thaiv zoo tshaj plaws los ntawm cov roj uas koj tau xaiv
Thaum twg cov khoom siv tiag tiag siv los ua cov khoom lag luam kom ruaj ntseg qiv nyiaj qiv cov ntaub ntawv?
Hauv kev qiv qiv nyiaj ruaj ntseg, ob cov ntaub ntawv tseem ceeb rau tus qiv nyiaj hauv kev ruaj ntseg. Thawj cov ntaub ntawv yog ib qho cuab yeej cuab tam uas yog siv nyob rau hauv feem ntau cov nyiaj txais qiv. Cov cuab yeej lien yog cov ntaub ntawv uas muab rau tus neeg qiv nyiaj muaj cai los txeeb cov khoom ntiag tug
Nws hu li cas thaum cov khoom tshiab lossis cov saw tshiab nyiag cov neeg siv khoom thiab muag los ntawm cov laus uas twb muaj lawm nws raug xa mus rau?
Thaum cov khoom tshiab lossis cov saw tshiab tshiab nyiag cov neeg siv khoom thiab kev muag khoom los ntawm cov qub qub ntawm ib lub koom haum, qhov no yog hu ua. Cannibalization