PMMA yog dab tsi? Yuav ua li cas recyclable PMMA?

Raws li lub tswv yim ntawm kev txhim kho kom ruaj khov permeates kev lag luam kev zoo nkauj, ntau thiab ntau lub npe tau tsom mus rau kev siv cov khoom zoo ib puag ncig hauv lawv cov ntim.PMMA (polymethylmethacrylate), feem ntau hu ua acrylic, yog cov khoom siv yas uas tau siv dav hauv kev ntim tshuaj pleev ib ce, thiab tau txais txiaj ntsig zoo rau nws qhov siab pob tshab, cuam tshuam tsis kam, thiab ultraviolet (UV) cov khoom ua haujlwm. Txawm li cas los xij, thaum tsom mus rau kev zoo nkauj, PMMA tus phooj ywg ib puag ncig thiab nws cov peev txheej rov ua dua tau maj mam nyiam.

Tube nrog cream ntawm lub rooj dub, kaw-up

PMMA yog dab tsi thiab vim li cas nws thiaj haum rau kev ntim khoom kom zoo nkauj?

PMMA yog cov khoom siv thermoplastic nrog cov pob tshab siab, tso cai rau ntau dua 92% ntawm lub teeb kom nkag mus, nthuav tawm cov txiaj ntsig zoo nkauj ze rau ntawm iav. Nyob rau tib lub sijhawm, PMMA muaj huab cua tsis zoo thiab tsis ua rau yellowing lossis fading txawm tias tom qab ntev raug rau UV rays. Yog li ntawd, ntau cov tshuaj pleev ib ce high-end xaiv siv PMMA ntim los txhim kho kev ntxhib los mos thiab zoo nkauj ntawm cov khoom. Ntxiv rau nws qhov kev pom zoo, PMMA kuj tseem muaj tshuaj tiv thaiv, ua kom muaj kev ruaj ntseg ntawm cov tshuaj pleev ib ce thaum khaws cia.

Cov ntawv thov rau PMMA ntim muaj xws li:

Lub raj mis lub raj mis: PMMA tuaj yeem nthuav qhia cov iav zoo li kev ntxhib los mos, uas haum nrog qhov chaw ntawm cov khoom siv high-end xws li cov roj ntsha.
Cov hmoov hmoov thiab cov khoom ntim tshuaj pleev ib ce: PMMA qhov cuam tshuam ua rau cov khoom muaj kev nyab xeeb thaum thauj thiab siv txhua hnub.
Pob tshab plhaub: Pob tshab plhaub rau cov khoom xws li lipsticks thiab lub hauv paus, piv txwv li, qhia cov xim ntawm cov ntsiab lus thiab ntxiv rau qhov zoo siab ntawm lub ntim.

Lub peev xwm rov ua dua ntawm PMMA yog dab tsi?

Ntawm cov thermoplastics, PMMA muaj qee lub peev xwm rov ua dua tshiab, tshwj xeeb tshaj yog vim nws cov tshuaj lom neeg ruaj khov tso cai rau nws tswj hwm lub cev zoo txawm tias tom qab ntau yam rov ua dua tshiab. Hauv qab no yog ob peb txoj hauv kev rov ua dua tshiab rau PMMA thiab lawv lub peev xwm rau kev ntim khoom kom zoo nkauj:

Mechanical recycling: PMMA tuaj yeem rov ua dua tshiab los ntawm crushing, melting, thiab lwm yam. Txawm li cas los xij, cov khoom siv rov ua dua PMMA tuaj yeem ua rau tsis zoo, thiab rov ua dua tshiab hauv cov ntim khoom kom zoo nkauj yuav tsum tau ua kom zoo.

Kev siv tshuaj lom neeg: Los ntawm kev siv tshuaj lom neeg decomposition, PMMA tuaj yeem tawg mus rau hauv nws cov monomer MMA (methyl methacrylate), uas tuaj yeem ua polymerized los ua PMMA tshiab. Txoj kev no tswj hwm lub siab purity thiab pob tshab ntawm PMMA, uas ua rau nws tsim nyog rau kev tsim cov khoom ntim khoom zoo nkauj. Tsis tas li ntawd, chemical recycling yog ib puag ncig tus phooj ywg nyob rau hauv lub sij hawm ntev tshaj li cov neeg kho tshuab recycling, tab sis nws tseem tsis tau siv rau ib tug loj teev nyob rau hauv cov tshuaj pleev ib ce sector vim nws cov nqi siab thiab cov kev cai.

Kev lag luam xav tau rau cov ntawv thov kev ruaj ntseg: Nrog rau kev loj hlob ntawm kev tiv thaiv ib puag ncig, ntau lub npe zoo nkauj tau pib siv cov ntaub ntawv PMMA rov ua dua tshiab rau ntim. Rov ua dua PMMA yog ze rau cov khoom siv nkauj xwb raws li kev ua tau zoo thiab tuaj yeem txo cov khoom siv raw, yog li txo cov pa roj carbon hneev taw. Ntau thiab ntau lub npe tau koom nrog cov khoom siv rov ua dua PMMA rau hauv lawv cov khoom tsim, uas tsis tsuas yog ua tau raws li qhov xav tau kev zoo nkauj, tab sis kuj ua raws li cov qauv ntawm kev tiv thaiv ib puag ncig.

Kev cia siab yav tom ntej rau PMMA rov ua dua tshiab hauv kev ntim tshuaj pleev ib ce

Txawm hais tias muaj peev xwm rov ua dua tshiab ntawm PMMA hauv kev ntim khoom zoo nkauj, cov teeb meem tseem nyob. Tam sim no, PMMA cov cuab yeej siv rov ua dua tshiab tsis tau nthuav dav txaus, thiab kev siv tshuaj lom neeg yog kim thiab me me. Nyob rau hauv lub neej yav tom ntej, raws li thev naus laus zis nce qib thiab ntau lub tuam txhab nqis peev hauv kev ntim khoom ib puag ncig, PMMA rov ua dua tshiab yuav ua kom zoo dua qub thiab ntau dua.

Hauv cov ntsiab lus no, cov khoom lag luam zoo nkauj tuaj yeem txhawb txoj kev loj hlob ntawm kev ntim khoom kom zoo nkauj los ntawm kev xaiv cov khoom siv rov ua dua PMMA, ua kom zoo ib puag ncig kev ntsuas hauv cov saw hlau, thiab lwm yam. PMMA yuav tsis tsuas yog cov khoom siv zoo nkauj xwb, tab sis kuj yog ib tus neeg sawv cev xaiv rau kev sib koom ua ke kev tiv thaiv ib puag ncig thiab zam, kom txhua pob yuav pab tiv thaiv ib puag ncig.


Post lub sij hawm: Nov-01-2024