Bakelite - yog dab tsi? Cov khoom siv yog ib hom yas qub tshaj plaws uas tsim los ntawm noob neej. Nws yog tau los ntawm condensation ntawm phenols nrog formaldehyde resins, nyob rau hauv lub xub ntiag ntawm alkali. Sab nraud, cov khoom yuav zoo ib yam li amber, ebonite, celluloid thiab txawm kaus ntxhw.
Invention of Bakelite
Bakelite - cov khoom no yog dab tsi? Lub tswv yim ntawm kev tsim cov khoom hnyav, cov yas tsis muaj hluav taws kub tuaj rau Belgian inventor Leo Baekeland rov qab rau xyoo 1909. Rau lub sijhawm ntev, cov khoom siv tshwj xeeb tau siv los ua kom tau raws li qhov xav tau ntawm cov khoom lag luam. Tom qab ntawd, Bakelite lub teeb yuag thiab lub zog loj tau ua pov thawj tias yog ib qho cuab yeej zoo rau cov neeg tsim khoom kim heev.
Cov khoom tsis yog xav tau thaum xub thawj. Tsuas yog nyob rau hauv lub 40s ntawm lub xyoo pua xeem, ua tsaug rau ib tug tseem ceeb nthuav ntawm cov xim palette, Bakelite pib nyiam cov xim ntawm ntau lub tuam txhab tshwj xeeb hauv kev tsim cov khaub ncaws hnav khaub ncaws thiab ntau yam khoom siv hauv tsev.
Nyob rau lub sijhawm ua tsov rog tom qab, qhov kev thov rau Bakelite tau poob qis me ntsis. Ib nthwv dej tshiab ntawm cov khoom siv nrovtuaj nyob rau hauv lub 80s, thaum bakelite hniav nyiaj hniav kub dua los ua nyob rau hauv kev thov, feem ntau yog los ntawm American designers. Tshwj xeeb, tus kws ua yeeb yam nto moo thiab tus thawj coj ua yeeb yaj kiab Andy Warhol tau sau ntau yam ntawm Bakelite cov hniav nyiaj hniav kub, tom qab nws tuag cov khoom raug muag ntawm kev sib tw rau tus nqi ntawm lub sijhawm ntawd.
Hnub no, mloog rau bakelite raws li lub zog siab, tsis tshua muaj lub teeb thiab cov khoom siv textured tseem yog siab heev, txawm li cas los xij, nrog rau nws tus nqi.
YYuav ua li cas Bakelite yog ua
Ib qho sib xyaw ntawm formalin nrog phenols nyob rau hauv muaj cov alkaline lossis acid catalyst form Bakelite. Nws yog dab tsi? Yog hais tias peb tham txog formalin, ces nws yog tau los ntawm oxidizing methanol ntawm ib tug kub ntawm 650 o C nyob rau hauv lub xub ntiag ntawm ib tug catalyst nyob rau hauv daim ntawv ntawm nyiaj. Lwm cov khoom ntawm Bakelite – phenol yog muab rho tawm los ntawm ntoo, xim av peat, roj refinery khoom.
Cov khoom xyaw Bakelite yog nchuav rau hauv cov pwm tshwj xeeb thiab ua kom sov rau 80oC. Raw khoom "Bakelite A" ntawm chav tsev kub muaj cov khoom zoo ib yam li rosin.
Txhawm rau zam kev tsim cov kab noj hniav thiab npuas hauv cov qauv bakelite, cov khoom siv yog polymerized ntawm qib siab siab, txog 8 cua. Thaum Bakelite polymerizes nyob rau hauv cov hlab ntim, lub siab yuav tsum tau mus txog ntawm nws tus kheej.
Bakelite - khoom khoom
Bakelite yog ib qho khoom muaj zog, tawv uas hloov mus rau hauv ib qho infusible, insoluble daim ntawvnyob rau hauv kev cuam tshuam ntawm lub sijhawm cua sov. Cov khoom yog heev soluble nyob rau hauv cawv. Yog li ntawd, cov cuab yeej no tau ua tiav siv rau kev tsim cov kua roj vanish bakelite.
Cov khoom muaj cov txheej txheem ruaj khov. Bakelite yog ib qho zoo heev conductor ntawm tshav kub, nws nto tiv taus kev sib txhuam thiab siab zoo. Bakelite blanks tuaj yeem ua rau ntawm lub tshuab dhos.
Ntxiv rau, cov khoom siv muaj zog heev rau cov tshuaj caustic. Tsuas yog qhov kev zam tsuas yog cov ntsiab lus ntawm nitric thiab sulfuric acid.
Ib txwm, zoo li lwm yam khoom siv, Bakelite kuj muaj nws qhov tsis zoo. Nws yog dab tsi? Ua ntej ntawm tag nrho cov, nws yog tsim nyog sau cia qhov ceev thiab nce fragility ntawm cov khoom. Yam khoom raws li Bakelite yog loj heev. Yog li, cov khoom siv tsis tsim nyog rau kev tsim cov khoom siv hluav taws xob niaj hnub no.
Tib lub sijhawm, Bakelite muaj teeb meem vim muaj formaldehyde thiab ntau lwm yam tshuaj lom hauv cov khoom xyaw. Raws li qhov no, qhov ua tau ntawm kev siv cov khoom siv hauv qee thaj chaw muaj kev lag luam tseem txwv tsis pub dhau.
Yuav ua li cas qhia Bakelite tiag tiag los ntawm tus cuav?
Bakelite - yog dab tsi? Ua ntej ntawm tag nrho cov, cov khoom muaj xws li cov khoom muaj nqis xws li tiv thaiv atmospheric influences, acids, yog ib tug zoo heev dielectric thiab yuav machined zoo.
Txawm hais tias tag nrho cov khoom ntawm cov khoom sib txawv ntawm cov khoom, feem ntau muaj cov khoom cuav. Txawm li cas los xij, muaj ntau yamMuaj pov thawj txoj hauv kev kom paub qhov txawv ntawm cov yas no los ntawm fake:
- Kev tuav lub hauv qab ntawm Bakelite nrog lub tsev ntxhua khaub ncaws yuav ua rau muaj kev pom daj daj ntawm patina.
- Kev raug rau Bakelite nrog dej kub ua rau muaj ntxhiab tsw me ntsis reminiscent ntawm camphor.
Qhov tseeb, ua ib qho Bakelite cuav yog qhov yooj yim heev. Yog tias muaj qee yam khoom siv tshuaj lom neeg, cov khoom siv tuaj yeem ua raws li hauv tsev. Feem ntau, tsuas yog los ntawm kev sim thiab kaw, ua tib zoo tshuaj xyuas kom pom tseeb tias cov khoom tsis yog qhov tseeb.
Kev tsim cov hniav nyiaj hniav kub bakelite
Puas Bakelite puas tsim kev puas tsuaj? Cov lus nug no yog nug los ntawm ntau tus masters uas tau txiav txim siab pib ua cov hniav nyiaj hniav kub. Thaum lub sij hawm ntawm cov tsos ntawm cov khoom, kev nyab xeeb ntawm nws siv tau tsa ib co tsis ntseeg. Txawm li cas los xij, tam sim no, muaj pes tsawg leeg ntawm Bakelite yog tsis muaj tshuaj lom, muaj peev xwm tsim teeb meem. Yog li ntawd, niaj hnub no nws yog fashionable siv lub hauv paus rau zus tau tej cov hniav nyiaj hniav kub.
Muaj cov kws ua haujlwm siv cov khoom siv bakelite ntawm cov khoom siv hauv tsev qub los ua cov hniav nyiaj hniav kub. Feem ntau, nrog rau txoj kev tsim khoom no, tus neeg yuav khoom ntawm cov hniav nyiaj hniav kub tau ceeb toom txog nws keeb kwm.
Tus nqi ntawm cov khoom bakelite
Yog tias peb tham txog tus nqi ntawm cov hniav nyiaj hniav kub bakelite, nws nyob ntawm qhov nyuaj ntawm kev tsim cov khoom, tus nqi sau thiab cov cai ntawm cov chaw tsim khoom. Feem ntau,bakelite hniav nyiaj hniav kub hauv dub, ntsuab, iris ntxoov tuaj yeem yuav ntawm tus nqi qis tshaj.
