Xov Xwm Kev Lag Luam
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Cov hom lag luam zam kuj tseem ua si nrog cov khoom siv hluavtaws, nrog LanzaTech tso tawm lub tsho dub ua los ntawm CO₂.
Tsis yog hais lus tshaj tawm tias cov khoom siv hluavtaws tau nkag mus rau hauv txhua yam ntawm tib neeg lub neej. ZymoChem tab tom yuav tsim lub tsho caij ski ua los ntawm qab zib. Tsis ntev los no, ib lub npe khaub ncaws zam tau tshaj tawm ib lub tsho ua los ntawm CO₂. Fang yog LanzaTech, lub tuam txhab tsim khoom siv hluavtaws hnub qub. Nws nkag siab tias kev koom tes no tsis yog thawj "kev hla" ntawm LanzaTech. Thaum ntxov li Lub Xya Hli xyoo no, LanzaTech tau koom tes nrog lub tuam txhab khaub ncaws kis las Lululemon thiab tsim cov xov paj thiab ntaub thawj zaug hauv ntiaj teb uas siv cov ntaub siv rov ua dua tshiab. LanzaTech yog lub tuam txhab thev naus laus zis tsim khoom siv nyob hauv Illinois, Tebchaws Meskas. Raws li nws cov kev sib sau ua ke hauv kev tsim khoom siv, bioinformatics, kev txawj ntse dag thiab kev kawm tshuab, thiab kev tsim kho, LanzaTech tau tsim... -
Cov Txheej Txheem Txhim Kho Cov Khoom PVC - Lub Luag Haujlwm ntawm Cov Khoom Ntxiv.
Cov tshuaj PVC uas tau los ntawm kev polymerization tsis ruaj khov heev vim nws tsis tshua muaj thermal stability & siab yaj viscosity. Nws yuav tsum tau hloov kho ua ntej ua tiav cov khoom tiav. Nws cov khoom tuaj yeem txhim kho / hloov kho los ntawm kev ntxiv ntau yam khoom ntxiv, xws li cov tshuaj heat stabilizers, UV stabilizers, plasticizers, impact modifiers, fillers, flame retardants, pigments, thiab lwm yam. Kev xaiv cov khoom ntxiv no los txhim kho cov khoom ntawm polymer yog nyob ntawm qhov xav tau ntawm daim ntawv thov kawg. Piv txwv li: 1. Cov tshuaj yas (Phthalates, Adipates, Trimellitate, thiab lwm yam) yog siv los ua cov neeg sawv cev softening los txhim kho rheological thiab mechanical kev ua tau zoo (toughness, strength) ntawm cov khoom vinyl los ntawm kev nce qhov kub. Cov yam uas cuam tshuam rau kev xaiv cov tshuaj yas rau vinyl polymer yog: Polymer compatibili... -
Lub rooj zaum polylactic acid 3D luam tawm uas rhuav tshem koj lub tswv yim.
Nyob rau xyoo tas los no, 3D printing technology tau pom nyob rau hauv ntau yam kev lag luam, xws li khaub ncaws, tsheb, kev tsim kho, khoom noj, thiab lwm yam, txhua tus tuaj yeem siv 3D printing technology. Qhov tseeb, 3D printing technology tau siv rau kev tsim khoom ntxiv thaum ntxov, vim tias nws txoj kev prototyping sai sai tuaj yeem txo lub sijhawm, cov neeg ua haujlwm thiab cov khoom siv raw. Txawm li cas los xij, thaum cov thev naus laus zis loj hlob tuaj, lub luag haujlwm ntawm 3D printing tsis yog tsuas yog incremental xwb. Daim ntawv thov dav dav ntawm 3D printing technology nthuav dav mus rau cov rooj tog uas nyob ze rau koj lub neej txhua hnub. 3D printing technology tau hloov cov txheej txheem tsim khoom ntawm cov rooj tog. Ib txwm muaj, kev ua rooj tog xav tau ntau lub sijhawm, nyiaj txiag thiab cov neeg ua haujlwm. Tom qab cov khoom prototype raug tsim tawm, nws yuav tsum tau sim thiab txhim kho tas li. Ho... -
Kev Tshuaj Xyuas Txog Kev Hloov Pauv ntawm PE Cov Hom Kev Siv Khoom Siv Hauv Qab Yav Tom Ntej.
Tam sim no, kev siv polyethylene hauv kuv lub teb chaws yog loj heev, thiab kev faib tawm ntawm cov hom downstream yog qhov nyuaj thiab feem ntau muag ncaj qha rau cov tuam txhab tsim khoom yas. Nws yog ib feem ntawm cov khoom kawg hauv cov saw hlau kev lag luam downstream ntawm ethylene. Ua ke nrog qhov cuam tshuam ntawm thaj tsam concentration ntawm kev siv hauv tsev, qhov sib txawv ntawm kev muab khoom thiab kev thov hauv cheeb tsam tsis sib npaug. Nrog rau kev nthuav dav ntawm lub peev xwm tsim khoom ntawm kuv lub teb chaws cov tuam txhab polyethylene upstream hauv xyoo tas los no, sab kev muab khoom tau nce ntxiv ntau heev. Tib lub sijhawm, vim muaj kev txhim kho tas li ntawm cov neeg nyob hauv kev tsim khoom thiab cov qauv kev nyob, qhov kev thov rau lawv tau nce ntxiv tas li hauv xyoo tas los no. Txawm li cas los xij, txij li ib nrab xyoo 202... -
Cov Hom Polypropylene Sib Txawv Yog Dab Tsi?
Muaj ob hom polypropylene tseem ceeb: homopolymers thiab copolymers. Cov copolymers raug muab faib ua block copolymers thiab random copolymers. Txhua pawg haum rau qee daim ntawv thov zoo dua li lwm tus. Polypropylene feem ntau hu ua "hlau" ntawm kev lag luam yas vim muaj ntau txoj hauv kev uas nws tuaj yeem hloov kho lossis kho kom zoo tshaj plaws rau lub hom phiaj tshwj xeeb. Qhov no feem ntau ua tiav los ntawm kev qhia cov khoom ntxiv tshwj xeeb rau nws lossis los ntawm kev tsim nws hauv txoj hauv kev tshwj xeeb heev. Qhov kev hloov pauv no yog ib qho tseem ceeb. Homopolymer polypropylene yog qib dav dav. Koj tuaj yeem xav txog qhov no zoo li lub xeev tsis siv neeg ntawm cov khoom siv polypropylene. Block copolymer polypropylene muaj cov chav sib koom ua ke hauv cov blocks (uas yog, hauv tus qauv ib txwm muaj) thiab muaj txhua yam ... -
Cov yam ntxwv ntawm Polyvinyl Chloride (PVC) yog dab tsi?
Qee qhov tseem ceeb tshaj plaws ntawm Polyvinyl Chloride (PVC) yog: Qhov ceev: PVC yog qhov ntom heev piv rau feem ntau cov yas (qhov hnyav tshwj xeeb nyob ib puag ncig 1.4) Kev lag luam: PVC yooj yim nrhiav tau thiab pheej yig. Qhov nyuaj: Rigid PVC qeb zoo rau qhov nyuaj thiab ruaj khov. Lub zog: Rigid PVC muaj lub zog tensile zoo heev. Polyvinyl Chloride yog cov khoom siv "thermoplastic" (piv rau "thermoset"), uas muaj feem cuam tshuam nrog txoj kev uas cov yas teb rau cua sov. Cov khoom siv thermoplastic ua kua ntawm lawv qhov chaw yaj (qhov ntau rau PVC ntawm qhov qis heev 100 degrees Celsius thiab cov nqi siab dua xws li 260 degrees Celsius nyob ntawm cov khoom ntxiv). Ib qho tseem ceeb tseem ceeb txog cov thermoplastics yog tias lawv tuaj yeem raug cua sov rau lawv qhov chaw yaj, txias, thiab rov ua kom sov dua nrog... -
Cov caustic soda yog dab tsi?
Thaum mus ncig ua si rau lub khw muag khoom loj, cov neeg yuav khoom yuav khaws cov tshuaj ntxuav tais diav, yuav ib lub raj mis tshuaj aspirin thiab saib cov xov xwm tshiab tshaj plaws ntawm cov ntawv xov xwm thiab cov ntawv xov xwm. Thaum xub thawj siab ib muag, nws yuav zoo li cov khoom no tsis muaj ntau yam zoo sib xws. Txawm li cas los xij, rau txhua yam ntawm lawv, caustic soda ua lub luag haujlwm tseem ceeb hauv lawv cov npe khoom xyaw lossis cov txheej txheem tsim khoom. Caustic soda yog dab tsi? Caustic soda yog cov tshuaj sib xyaw sodium hydroxide (NaOH). Cov tshuaj no yog alkali - ib hom alkali uas tuaj yeem ua rau cov kua qaub tsis muaj zog thiab yaj tau hauv dej. Niaj hnub no caustic soda tuaj yeem tsim ua cov pellets, flakes, hmoov, cov tshuaj thiab ntau ntxiv. Caustic soda siv rau dab tsi? Caustic soda tau dhau los ua cov khoom xyaw feem ntau hauv kev tsim ntau yam khoom siv niaj hnub. Feem ntau hu ua lye, nws tau siv rau... -
Vim li cas Polypropylene siv ntau zaus?
Polypropylene siv rau hauv tsev neeg thiab kev lag luam. Nws cov yam ntxwv tshwj xeeb thiab lub peev xwm hloov kho rau ntau yam kev tsim khoom ua rau nws sawv tawm ua cov khoom siv tsis muaj nqis rau ntau yam kev siv. Lwm yam ntxwv tsis muaj nqis yog polypropylene lub peev xwm ua haujlwm ua cov khoom siv yas thiab ua cov fiber (zoo li cov hnab nqa khoom uas tau muab rau ntawm cov xwm txheej, kev sib tw, thiab lwm yam). Polypropylene lub peev xwm tshwj xeeb los tsim los ntawm ntau txoj kev sib txawv thiab rau hauv ntau daim ntawv thov txhais tau tias nws sai sai pib sib tw ntau yam khoom siv qub, tshwj xeeb tshaj yog hauv kev ntim khoom, fiber, thiab kev txhaj tshuaj molding. Nws txoj kev loj hlob tau txhawb nqa ntau xyoo thiab nws tseem yog tus neeg ua si tseem ceeb hauv kev lag luam yas thoob ntiaj teb. Ntawm Creative Mechanisms, peb muaj... -
PVC granules yog dab tsi?
PVC yog ib qho ntawm cov yas siv ntau tshaj plaws hauv kev lag luam. Plasticol, ib lub tuam txhab Italian nyob ze Varese tau tsim cov PVC granules rau ntau tshaj 50 xyoo tam sim no thiab kev paub dhau los ntawm ntau xyoo tau tso cai rau kev lag luam kom tau txais qib kev paub tob uas peb tam sim no tuaj yeem siv nws los ua kom tau raws li txhua tus neeg siv khoom thov muab cov khoom tshiab thiab txhim khu kev qha. Qhov tseeb tias PVC yog siv dav rau kev tsim ntau yam khoom sib txawv qhia tau hais tias nws cov yam ntxwv intrinsic muaj txiaj ntsig zoo thiab tshwj xeeb. Cia peb pib tham txog qhov rigidity ntawm PVC: cov khoom siv yog tawv heev yog tias ntshiab tab sis nws dhau los ua flexible yog tias sib xyaw nrog lwm yam tshuaj. Qhov tshwj xeeb no ua rau PVC haum rau kev tsim cov khoom siv hauv ntau qhov chaw, los ntawm lub tsev ib qho t... -
Cov khoom ci ntsa iab uas lwj tau yuav hloov pauv kev lag luam tshuaj pleev ib ce.
Lub neej puv nrog cov ntim khoom ci ntsa iab, cov fwj tshuaj pleev ib ce, cov tais txiv hmab txiv ntoo thiab ntau ntxiv, tab sis ntau ntawm lawv yog ua los ntawm cov khoom lom thiab tsis ruaj khov uas ua rau muaj kuab paug yas. Tsis ntev los no, cov kws tshawb fawb ntawm University of Cambridge hauv UK tau pom txoj hauv kev los tsim cov khoom ci ntsa iab uas ruaj khov, tsis muaj tshuaj lom thiab lwj tau los ntawm cellulose, lub hauv paus tseem ceeb ntawm phab ntsa cell ntawm cov nroj tsuag, txiv hmab txiv ntoo thiab zaub. Cov ntawv cuam tshuam tau luam tawm hauv phau ntawv xov xwm Nature Materials rau hnub tim 11. Ua los ntawm cellulose nanocrystals, cov khoom ci ntsa iab no siv cov xim qauv los hloov lub teeb kom tsim cov xim ci ntsa iab. Hauv xwm, piv txwv li, cov tis ntawm npauj npaim thiab cov plaub peacock yog cov khoom zoo nkauj ntawm cov xim qauv, uas yuav tsis ploj tom qab ib puas xyoo. Siv cov txheej txheem sib dhos tus kheej, cellulose tuaj yeem tsim ... -
Polyvinyl chloride (PVC) paste resin yog dab tsi?
Polyvinyl chloride (PVC) paste Resin, raws li lub npe qhia, yog tias cov resin no feem ntau yog siv rau hauv daim ntawv paste. Tib neeg feem ntau siv hom paste no ua plastisol, uas yog ib daim ntawv kua tshwj xeeb ntawm PVC yas hauv nws lub xeev tsis tau ua tiav. . Cov paste resins feem ntau yog npaj los ntawm emulsion thiab micro-suspension txoj kev. Polyvinyl chloride paste resin muaj qhov loj me me, thiab nws cov qauv zoo li talc, nrog immobility. Cov polyvinyl chloride paste resin yog sib xyaw nrog Plasticizer thiab tom qab ntawd do kom tsim ib qho kev ncua ruaj khov, uas tom qab ntawd ua rau PVC paste, lossis PVC plastisol, PVC sol, thiab nws yog nyob rau hauv daim ntawv no uas tib neeg siv los ua cov khoom kawg. Hauv cov txheej txheem ntawm kev ua paste, ntau yam fillers, diluents, heat stabilizers, foaming agents thiab lub teeb stabilizers raug ntxiv raws li ... -
PP zaj duab xis yog dab tsi?
COV KHOOM Polypropylene lossis PP yog ib qho thermoplastic pheej yig uas muaj kev pom tseeb siab, ci ntsa iab siab thiab lub zog tensile zoo. Nws muaj qhov melting point siab dua PE, uas ua rau nws tsim nyog rau cov ntawv thov uas xav tau kev tua kab mob ntawm qhov kub siab. Nws kuj muaj tsawg dua haze thiab ci ntsa iab dua. Feem ntau, cov khoom siv cua sov ntawm PP tsis zoo li cov ntawm LDPE. LDPE kuj muaj lub zog tsim kua muag zoo dua thiab tsis tshua muaj kev cuam tshuam rau qhov kub thiab txias. PP tuaj yeem ua metallized uas ua rau muaj cov khoom tiv thaiv roj zoo dua rau cov ntawv thov uas xav tau qhov twg lub sijhawm ntev ntawm cov khoom tseem ceeb. Cov yeeb yaj kiab PP zoo rau ntau yam kev lag luam, cov neeg siv khoom, thiab cov ntawv thov tsheb. PP yog cov khoom siv rov ua dua tshiab thiab tuaj yeem rov ua dua tshiab rau ntau yam khoom rau ntau yam kev siv sib txawv. Txawm li cas los xij, unl ...