Xov Xwm Kev Lag Luam
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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 ... -
PVC compound yog dab tsi?
Cov tshuaj sib xyaw PVC yog ua los ntawm kev sib xyaw ua ke ntawm PVC polymer RESIN thiab cov khoom ntxiv uas muab cov qauv tsim nyog rau kev siv kawg (Cov kav dej lossis Cov Qauv Rigid lossis Cov Qauv Yooj Yim lossis Cov Ntawv). Cov tshuaj sib xyaw no yog tsim los ntawm kev sib xyaw ua ke cov khoom xyaw, uas tom qab ntawd hloov mus ua cov khoom "gelled" nyob rau hauv kev cuam tshuam ntawm cua sov thiab lub zog shear. Nyob ntawm hom PVC thiab cov khoom ntxiv, cov tshuaj sib xyaw ua ntej gelation tuaj yeem yog cov hmoov ntws dawb (hu ua kev sib xyaw qhuav) lossis cov kua hauv daim ntawv ntawm cov tshuaj nplaum lossis cov kua. Cov tshuaj sib xyaw PVC thaum tsim, siv cov yas, mus rau hauv cov ntaub ntawv yooj ywm, feem ntau hu ua PVC-P. Cov tshuaj sib xyaw PVC thaum tsim tsis muaj yas rau cov ntawv thov nruj yog xaiv PVC-U. PVC Compounding tuaj yeem sau ua raws li hauv qab no: Cov khoom siv PVC nruj ... -
Qhov txawv ntawm BOPP, OPP thiab PP hnab.
Cov lag luam zaub mov feem ntau siv cov yas ntim khoom BOPP. Cov hnab BOPP yooj yim luam tawm, txheej thiab laminate uas ua rau lawv haum rau kev ntim cov khoom xws li cov khoom tshiab, khoom qab zib thiab khoom noj txom ncauj. Nrog rau BOPP, OPP, thiab PP hnab kuj siv rau kev ntim khoom. Polypropylene yog ib qho polymer feem ntau ntawm peb yam siv rau kev tsim cov hnab. OPP sawv cev rau Oriented Polypropylene, BOPP sawv cev rau Biaxially Oriented Polypropylene thiab PP sawv cev rau Polypropylene. Tag nrho peb yam sib txawv hauv lawv cov qauv tsim. Polypropylene tseem hu ua polypropene yog ib qho thermoplastic semi-crystalline polymer. Nws yog tawv, muaj zog thiab muaj kev tiv taus kev cuam tshuam siab. Cov hnab sawv ntsug, cov hnab spout thiab cov hnab ziplock yog ua los ntawm polypropylene. Nws nyuaj heev rau kev sib txawv ntawm OPP, BOPP thiab PP plas... -
Kev Tshawb Fawb Txog Kev Siv Lub Teeb Pom Kev Zoo (PLA) Hauv LED Teeb Pom Kev Zoo.
Cov kws tshawb fawb los ntawm lub teb chaws Yelemees thiab Netherlands tab tom tshawb nrhiav cov ntaub ntawv PLA tshiab uas zoo rau ib puag ncig. Lub hom phiaj yog los tsim cov ntaub ntawv ruaj khov rau kev siv kho qhov muag xws li lub teeb tsheb, lub lens, cov yas uas cuam tshuam lossis cov lus qhia teeb. Tam sim no, cov khoom no feem ntau yog ua los ntawm polycarbonate lossis PMMA. Cov kws tshawb fawb xav nrhiav cov yas bio-based los ua lub teeb tsheb. Nws hloov tawm tias polylactic acid yog cov khoom siv tsim nyog. Los ntawm txoj kev no, cov kws tshawb fawb tau daws ntau yam teeb meem uas cov yas ib txwm ntsib: thawj zaug, tig lawv txoj kev mloog mus rau cov peev txheej rov ua dua tshiab tuaj yeem txo qhov kev nyuaj siab los ntawm roj av rau kev lag luam yas; qhov thib ob, nws tuaj yeem txo cov pa roj carbon dioxide; qhov thib peb, qhov no cuam tshuam txog kev xav txog tag nrho cov khoom siv lub neej c... -
Luoyang lab tons ntawm ethylene project tau ua tiav kev vam meej tshiab!
Thaum Lub Kaum Hli 19, tus neeg sau xov xwm tau kawm los ntawm Luoyang Petrochemical tias Sinopec Group Corporation tau tuav lub rooj sib tham hauv Beijing tsis ntev los no, caw cov kws tshaj lij los ntawm ntau dua 10 chav tsev suav nrog Tuam Tshoj Chemical Society, Tuam Tshoj Synthetic Rubber Industry Association, thiab cov neeg sawv cev cuam tshuam los tsim ib pawg kws tshaj lij los soj ntsuam lab tus Luoyang Petrochemical. Daim ntawv qhia txog kev tshawb fawb txog qhov ua tau ntawm 1-tuj ethylene project yuav raug soj ntsuam thiab ua pov thawj tag nrho. Ntawm lub rooj sib tham, pawg kws tshaj lij soj ntsuam tau mloog cov ntawv ceeb toom cuam tshuam ntawm Luoyang Petrochemical, Sinopec Engineering Construction Company thiab Luoyang Engineering Company ntawm qhov project, thiab tsom mus rau kev soj ntsuam tag nrho ntawm qhov tsim nyog ntawm kev tsim kho project, cov ntaub ntawv raw, cov phiaj xwm khoom, kev ua lag luam, thiab cov txheej txheem... -
Daim ntawv thov thiab qhov sib txawv ntawm polylactic acid (PLA) hauv tsheb.
Tam sim no, cov khoom siv tseem ceeb ntawm polylactic acid yog cov ntaub ntawv ntim khoom, suav txog ntau dua 65% ntawm tag nrho cov kev siv; ua raws li cov ntawv thov xws li cov khoom siv ua noj ua haus, cov fibers / cov ntaub tsis-woven, thiab cov ntaub ntawv luam tawm 3D. Tebchaws Europe thiab North America yog cov lag luam loj tshaj plaws rau PLA, thaum Asia Pacific yuav yog ib qho ntawm cov lag luam loj hlob sai tshaj plaws hauv ntiaj teb vim tias qhov kev thov rau PLA txuas ntxiv mus rau hauv cov tebchaws xws li Tuam Tshoj, Nyiv, Kaus Lim Qab Teb, Is Nrias teb thiab Thaib teb. Los ntawm qhov kev xav ntawm hom ntawv thov, vim nws cov khoom siv kho tshuab thiab lub cev zoo, polylactic acid yog qhov tsim nyog rau extrusion molding, txhaj tshuaj molding, extrusion tshuab molding, spinning, foaming thiab lwm yam txheej txheem ua yas loj, thiab tuaj yeem ua rau hauv zaj duab xis thiab ntawv. , fiber, hlau, hmoov thiab o...