Dag polymers tau ua ib feem ntawm peb lub neej

Dag polymers - yog cov ntaub ntawv thiab tshuaj tau los ntawm sib sib zog nqus synthesis ntawm ib los yog ntau tshaj tshuaj. Nyob rau hauv feem ntau tus neeg mob lub hauv paus ntawm ib tug ib feem ntxiv thereto ntau yam additives thiab qhov hluav taws xob muaj ib hom tshuaj tshiab cov khoom nrog nws zog. Qhov no tshwm sim vim lub fact tias cov kev hloov noj qhov chaw nyob rau hauv lub molecular theem, ib tug tshiab macromolecule.

Synthetic polymers raug muab faib ua biopolymers thiab hluavtaws polymers. Lub hauv paus ntawm ob hom yog cov pa roj carbon. Qhov no yog nws Alter molecule, muab ib tug tshiab zoo rau nws. Biopolymers tau los ntawm modifying, i.e. lub pib cov ntaub ntawv uas muab rau cov uas ploj lawm khoom. Qhov no yog tsuas yog ua nyob rau hauv thiaj li yuav muab cov ntaub ntawv uas ductility thiab toughness. Ib qho piv txwv yog qhov kev npaj ntawm ib tug polymer hu ua "celluloid" uas yog los ntawm tej yam ntuj tso raw cov ntaub ntawv - cellulose (uas yog nws tus kheej ib tug natural polymer), ntxiv nws yog los tsim ntaub so ntswg. Synthetic ntaub ntawv ntawm cov technology yog ob txoj kev. Qhov no polymerization thiab polycondensation hom kev kawm. Lawv cia li yuav nrhiav tau tus tshiab tej yam khoom uas los ntawm nitrogen roj, carbon dioxide thiab hydrogen. Nyob rau hauv no txoj kev, ua polypropylene - yog ib tug polymer uas yog siv nyob rau hauv yuav luag tag nrho cov teb ntawm tib neeg kev ua si.

Tus txiv neej-ua polymers yog lug siv nyob rau hauv kev lag luam thiab lub neej txhua hnub. Cov ntaub ntawv yog muaj zog, check, saj zawg zog, kuj pheej yig piv rau tej yam ntuj tso cov ntaub ntawv. Lo lus "natural" yog maj ua
los ntawm lub cim, uas heev yuav tsub tus nqi ntawm cov khoom tiav. Muaj coob tus neeg ntseeg tau hais tias tej yam ntuj tso ntaub ntawv kom zoo thiab sustainability. Nyob rau tib lub ob peb tus neeg xav txog yuav ua li cas tau txais dag polymers. Piv txwv li ntaub ntawv qhia tias qhov tseem ceeb yog tsim los ntawm tej yam ntuj tso ntaub ntawv siv hluavtaws additives. Ntuj raw cov ntaub ntawv rau tag nrho cov ntawm cov tib neeg tsis muaj.

Dag polymer hu ua "silicone" thiab "latex" yog nquag siv nyob rau hauv cov tshuaj thiab cosmetology. Ntawm cov kev cog hniav yog ua los, lawv yog siv nyob rau hauv qhuav ntawm kev kho mob khoom, noj qab haus huv cov khoom thiab lwm yam.

Dag resins nyob rau hauv daim ntawv ntawm cov yas siv nyob rau hauv lub tsheb lag luam rau zus tau tej cov tsev neeg thiab cov hluav taws xob khoom siv, thiab tshaj. Muaj ntau cov khoom nyob rau hauv peb lub tsev yog ua los ntawm cov yas: lub tsev ntaub ntawv, tsev neeg cov khoom, cov khoom ua si. Tag nrho tej no yuav ua tau ob qho tib si environmentally tus phooj ywg thiab ua rau ib tug txaus ntshai rau lub neej. Nws nyob ntawm qhov zoo ntawm cov khoom. Lub fact tias cov heev lub hauv paus rau lub creation ntawm lub polymer yog inert nyob rau hauv cov nqe lus ntawm kev noj nyob. Tab sis hauj additives: Ntau yam antioxidants, stabilizers, colorants thiab thiaj li tawm - yuav ua tau teeb meem rau kev noj qab nyob. Lawv muaj peev xwm ua kom ua xua los yog raug tshuaj lom. Yog li ntawd, cov yas yam khoom yog xaiv los ntawm tsis hnov tsw. Zoo polymer muaj tsis muaj tsw.