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Khoom npe:POLY METHYL METHACRYLATE
Molecular hom:C33H54O6
CAS Nr:3319-31-1 : kuv
Cov khoom siv molecular:
PMMA yog lwm txoj hauv kev lag luam rau polycarbonate (PC) thaum lub zog tensile, flexural zog, pob tshab, polishability, thiab UV kam rau ua yog qhov tseem ceeb tshaj qhov cuam tshuam lub zog, tshuaj tiv thaiv, thiab kub ua haujlwm.[6] Tsis tas li ntawd, PMMA tsis muaj peev xwm ua rau muaj teeb meem bisphenol-A subunits pom hauv polycarbonate thiab yog qhov kev xaiv zoo dua rau kev txiav laser. Nws yog feem ntau nyiam vim nws cov khoom nruab nrab, yooj yim tuav thiab ua, thiab tus nqi qis. Tsis-hloov PMMA coj tus yam ntxwv nkig thaum nyob rau hauv load, tshwj xeeb tshaj yog nyob rau hauv ib tug cuam tshuam quab yuam, thiab nws yog nquag mus khawb dua cov pa inorganic iav, tab sis hloov PMMA tej zaum kuj muaj peev xwm ua tau siab khawb thiab cuam tshuam.
Acrylic prosthetic siv cov hniav Artificial thiab zoo nkauj siv PMMA, nyob rau hauv daim ntawv ua lag luam Technovit 7200 yog siv loj heev hauv kev kho mob. Nws yog siv rau yas histology, electron microscopy, thiab siv ntau yam ntxiv. PMMA tau raug siv los tsim ultra-dawb opaque daim nyias nyias uas hloov tau thiab hloov mus rau pob tshab thaum ntub dej.[50] Acrylic yog siv nyob rau hauv tanning txaj raws li lub pob tshab nto uas cais tus neeg nyob rau hauv lub tanning qhov muag teev thaum tanning. Hom acrylic siv nyob rau hauv tanning txaj yog feem ntau tsim los ntawm ib tug tshwj xeeb hom ntawm polymethyl methacrylate, ib tug compound uas tso cai rau cov hla ntawm ultraviolet rays. Cov ntawv ntawm PMMA feem ntau yog siv hauv kev lag luam kos npe los ua cov ntawv txiav tawm hauv cov tuab feem ntau sib txawv ntawm 3 txog 25 millimeters (0.1 txog 1.0 hauv). Cov tsiaj ntawv no tuaj yeem siv ib leeg los sawv cev rau lub tuam txhab lub npe thiab / lossis lub logo, lossis lawv yuav yog cov khoom siv ntawm cov ntawv teeb pom kev zoo. Acrylic kuj tseem siv dav hauv kev lag luam kos npe ua ib feem ntawm cov paib phab ntsa uas nws yuav yog lub nraub qaum, pleev xim rau ntawm qhov chaw lossis sab nraub qaum, lub ntsej muag nrog cov ntawv sau ntxiv lossis txawm tias cov duab thaij duab luam tawm ncaj qha rau nws, lossis ib lub spacer cais. kos npe rau Cheebtsam. PMMA tau siv hauv Laserdisc optical media.[51] (CDs thiab DVDs siv ob qho tib si acrylic thiab polycarbonate rau kev cuam tshuam). Nws yog siv los ua ib qho kev qhia lub teeb rau cov backlights hauv TFT-LCDs. tus nqi ntau dua nws qhov tsis zoo thaum tshav kub kub kam thiab siab dua attenuation dua iav fiber ntau. PMMA, nyob rau hauv ib daim ntawv purified, yog siv raws li lub matrix nyob rau hauv laser dye-doped organic solid-state nce xov xwm rau tunable khoom lub xeev dye lasers.[52] Hauv kev tshawb fawb semiconductor thiab kev lag luam, PMMA pab raws li kev tiv thaiv hauv cov txheej txheem electron beam lithography. Ib qho kev daws teeb meem uas muaj cov polymer hauv cov kuab tshuaj yog siv los tig lub tsho sil
Chemwin tuaj yeem muab ntau hom hydrocarbons thiab cov kuab tshuaj tshuaj lom neeg rau cov neeg siv khoom.Ua ntej ntawd, thov nyeem cov lus qhia hauv qab no txog kev ua lag luam nrog peb:
1. Kev ruaj ntseg
Kev nyab xeeb yog peb qhov tseem ceeb tshaj plaws. Ntxiv nrog rau kev muab cov neeg siv khoom paub txog kev nyab xeeb thiab ib puag ncig tus phooj ywg siv peb cov khoom, peb kuj tau cog lus los xyuas kom meej tias kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov neeg cog lus raug txo qis rau qhov tsim nyog thiab ua tau yam tsawg kawg nkaus. Yog li, peb xav kom tus neeg siv khoom kom ntseeg tau tias qhov tsim nyog tshem tawm thiab khaws cov qauv kev nyab xeeb tau ua tiav ua ntej peb xa khoom (thov xa mus rau HSSE appendix nyob rau hauv cov nqe lus dav dav thiab kev muag khoom hauv qab no). Peb cov kws tshaj lij HSSE tuaj yeem muab kev taw qhia txog cov qauv no.
2. Txoj kev xa khoom
Cov neeg siv khoom tuaj yeem xaj thiab xa cov khoom los ntawm chemwin, lossis lawv tuaj yeem tau txais cov khoom los ntawm peb cov chaw tsim khoom. Cov hom kev thauj mus los muaj xws li tsheb thauj mus los, tsheb ciav hlau lossis kev thauj mus los ntau yam (xws li kev sib cais).
Nyob rau hauv cov ntaub ntawv ntawm cov neeg yuav tsum tau, peb muaj peev xwm qhia kom meej qhov yuav tsum tau ntawm barges los yog tankers thiab siv tshwj xeeb kev nyab xeeb / tshuaj xyuas cov qauv thiab cov kev cai.
3. Yam tsawg kawg nkaus kom muaj nuj nqis
Yog tias koj yuav khoom los ntawm peb lub vev xaib, qhov kev txiav txim yam tsawg kawg nkaus yog 30 tons.
4. Kev them nyiaj
Txoj kev them nyiaj tus qauv yog txiav tawm ncaj qha hauv 30 hnub txij li daim ntawv xa nyiaj.
5. Cov ntaub ntawv xa tuaj
Cov ntaub ntawv hauv qab no tau muab nrog rau txhua qhov kev xa khoom:
· Bill of Lading, CMR Waybill lossis lwm yam ntaub ntawv thauj mus los
· Certificate of Analysis los yog Conformity (yog xav tau)
· Cov ntaub ntawv hais txog HSSE raws li txoj cai
· Cov ntaub ntawv kev lis kev cai raws li txoj cai (yog tias xav tau)
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