Qeb: polyethylene
xwm: Tasteless, odorless, non-toxic, non-glossy, milky dawb waxy hais nrog ib tug ceev ntawm txog 0.920 g / cm3 thiab ib tug melting point ntawm 130 ℃ to 145 ℃. Insoluble nyob rau hauv dej, me ntsis soluble nyob rau hauv hydrocarbons, thiab lwm yam. Nws muaj peev xwm tiv taus qhov yaig ntawm feem ntau cov acids thiab alkalis, muaj dej tsis haum, tswj tau yooj yim ntawm qhov kub thiab txias, thiab muaj hluav taws xob rwb thaiv tsev siab.
Kev tsim ntau lawm: Feem ntau muaj ob txoj kev tsim khoom: cov txheej txheem kub siab tubular thiab txheej txheem kettle. Yuav kom txo tau cov tshuaj tiv thaiv kub thiab siab, tubular txheej txheem generally siv cov neeg ua haujlwm kub qis thiab siab ua haujlwm los pib cov txheej txheem polymerization. High-purity ethylene yog cov khoom siv tseem ceeb, thiab propylene, propane, thiab lwm yam yog siv los ua qhov ceev ceev. Cov tshuaj tiv thaiv polymerization yog nqa tawm nyob rau hauv cov xwm txheej ntawm 200 ℃ txog 330 ℃ thiab 150 mus rau 300 MPa siv cov pib ua haujlwm siab. Lub molten polymer pib los ntawm polymerization nyob rau hauv lub reactor yuav tsum tau txias thiab sib cais nyob rau hauv siab siab, nruab nrab siab, thiab tsis tshua muaj siab. Lub tshuab hluav taws xob muaj cua txias yog txias thiab sib cais thiab xa mus rau qhov nkag ntawm lub tshuab hluav taws xob ultra-siab (300 MPa) compressor. Lub nruab nrab-siab circulating gas yog txias thiab sib cais thiab ces xa mus rau lub inlet ntawm lub high-pressure (30 MPa) compressor. Cov pa roj uas tsis tshua muaj siab yog txias thiab sib cais thiab rov ua dua los ntawm cov cua kub qis (0.5 MPa) compressor. Lub molten polyethylene yog sib cais nyob rau hauv siab siab thiab tsis tshua muaj siab thiab ces xa mus rau lub granulator rau dej txiav. Thaum lub sij hawm granulation, tsim nyog additives yuav muab ntxiv raws li sib txawv daim ntawv thov teb, thiab hais tias yog ntim thiab xa.
Siv: Nws tuaj yeem ua tiav los ntawm kev txhaj tshuaj molding, extrusion molding, tshuab moulding, thiab lwm yam. Nws yog siv los ua agricultural zaj duab xis, industrial ntim zaj duab xis, tshuaj thiab zaub mov ntim zaj duab xis, cov khoom siv kho tshuab, cov khoom siv niaj hnub, cov ntaub ntawv hauv tsev, hlau thiab cable rwb thaiv tsev, coatings, thiab cov ntawv hluavtaws, thiab lwm yam.
Polyethylene Powder Xim
Polyethylene hmoov xim yog qhov loj tshaj plaws thiab feem ntau siv hom thermoplastic hmoov xim. Cov resin zoo heev muab lub hauv paus rau high-gloss coatings ntawm polyethylene hmoov xim. Cov zaj duab xis txheej muaj qhov zoo hauv qab no: a) zoo heev dej tsis kam, acid thiab alkali tsis kam, tshuaj tiv thaiv, thiab dej nqus tus nqi qis dua 0.001%; b) zoo thermal rwb thaiv tsev thiab hluav taws xob rwb thaiv tsev, tsis muaj hluav taws xob corrosion; c) zoo tensile zog, yooj, thiab cuam tshuam tsis kam; d) zoo kub tsis kam, tsis muaj cracking ntawm -40 ℃ rau ntau tshaj 400h, yuav siv tau nyob rau hauv lub txias ib puag ncig ntawm sab qaum teb; e) tus nqi qis raw khoom, tsis muaj tshuaj lom.
Hom hmoov pleev xim no muab cov txheej txheem zaj duab xis zoo heev, softness, thiab waxy xav. Thaum cov zaj duab xis txheej ntawm polyethylene hmoov xim tuaj rau hauv kev sib cuag nrog qee cov kuab tshuaj los yog cov tshuaj ntxuav tes, nws yuav tawg sai sai vim kev ntxhov siab tawg. Feem ntau, lwm hom resins yog siv los hloov kho polyethylene resin, zoo heev txhim kho cov khoom siv ntawm polyethylene hmoov xim, txhim kho nws adhesion rau substrate, thiab txhawb txoj kev loj hlob ntawm hom txheej no, zoo heev nthuav nws daim ntawv thov teb.
Txoj kev txhim kho yav tom ntej ntawm polyethylene hmoov txheej
Polyethylene hmoov yog cov khoom siv hluavtaws tseem ceeb heev, uas yog cov khoom siv hluavtaws hluavtaws los ntawm ethylene monomer thiab dav siv hauv kev tsim cov khoom yas, fibers, ntim, kav, xaim, cables thiab lwm yam. Nrog rau kev nthuav qhia txuas ntxiv ntawm cov ntaub ntawv tshiab thiab cov thev naus laus zis tshiab, daim ntawv thov ntawm polyethylene hmoov kuj nthuav dav. Txoj kev loj hlob yav tom ntej yuav muaj raws li hauv qab no: 1. Kev tiv thaiv ntsuab thiab ib puag ncig: Nrog kev paub txog kev tiv thaiv ib puag ncig, kev loj hlob ntawm ntsuab thiab ib puag ncig.Nyeem ntxiv…
HS code ntawm polyethylene hmoov txheej yog dab tsi?
Taw qhia ntawm HS code ntawm polyethylene hmoov txheej HS CODE yog cov ntawv luv ntawm "Harmonized Commodity Description and Coding System". Lub Harmonization System Code (HS-Code) yog tsim los ntawm International Customs Council thiab lub npe Askiv yog Harmonization System Code (HS-Code). Cov ntsiab lus tseem ceeb ntawm kev lis kev cai thiab cov khoom nkag thiab tawm cov koom haum tswj hwm ntawm ntau lub teb chaws kom paub meej cov khoom lag luam, tswj xyuas cov khoom lag luam, tshuaj xyuas cov qauv tariff, thiab tshuaj xyuas cov khoom lag luam zoo yog cov ntawv pov thawj zoo rau kev ntshuam.Nyeem ntxiv…
CN naj npawb ntawm polyethylene hmoov yog dab tsi?
CN naj npawb ntawm polyethylene hmoov: 3901 Polymers ntawm ethylene, nyob rau hauv thawj cov ntaub ntawv: 3901.10 Polyethylene muaj ib tug tshwj xeeb gravity ntawm tsawg tshaj li 0,94: -3901.10.10 Linear polyethylene — 3901.10.90 Lwm yam 3901.20 Polyethylene muaj ib tug tshwj xeeb, polyethylene. los yog ntau tshaj: —-0,94 Polyethylene nyob rau hauv ib qho ntawm cov ntaub ntawv hais nyob rau hauv daim ntawv 3901.20.10(b) rau tshooj no, ntawm ib tug tshwj xeeb gravity ntawm 6 los yog ntau tshaj ntawm 0,958 ° C, muaj: 23 mg / kg los yog tsawg dua ntawm txhuas, 50 mg / kg lossis tsawg dua calcium, 2 mg / kg lossisNyeem ntxiv…
Polyethylene Xim yog dab tsi
Polyethylene Paint, tseem hu ua yas coatings, yog coatings siv rau cov ntaub ntawv yas. Nyob rau hauv xyoo tas los no, cov txheej txheem yas tau siv dav hauv xov tooj ntawm tes, TV, khoos phis tawj, tsheb, maus taus accessories thiab lwm yam kev lag luam, xws li tsheb sab nrauv thiab sab hauv. Cheebtsam, cov txheej txheem yas kuj tau siv dav hauv kev ua kis las thiab cov khoom siv ua si, ntim khoom kom zoo nkauj, thiab cov khoom ua si. Thermoplastic acrylate resin coatings, thermosetting acrylate-polyurethane resin hloov kho coatings, chlorinated polyolefin hloov txheej, hloov polyurethane txheej thiab lwm yam, ntawm cov acrylic coatingsNyeem ntxiv…
Dab tsi yog High Density Polyethylene
High density polyethylene (HDPE), hmoov dawb los yog granular khoom. Non-toxic, tasteless, crystallinity ntawm 80% mus rau 90%, softening point ntawm 125 mus rau 135 ° C, siv kub txog li 100 ° C; hardness, tensile zog thiab ductility yog zoo dua li tsawg ntom polyethylene; hnav tsis kam, hluav taws xob zoo rwb thaiv tsev, toughness thiab txias tsis kam; zoo tshuaj stability, insoluble nyob rau hauv tej organic hnyav ntawm chav tsev kub, corrosion kuj ntawm acid, alkali thiab ntau yam ntsev; nyias zaj duab xis permeability rau dej vapor thiab huab cua, dej nqus tsawg; tsis zoo aging kuj,Nyeem ntxiv…
Dab tsi yog Cov Txheej Txheem Ntau Lawm ntawm Polyethylene
Cov txheej txheem ntau lawm ntawm polyethylene tuaj yeem muab faib ua: Txoj kev siab siab, txoj kev siab siab yog siv los tsim cov polyethylene tsawg. Medium pressure Tsawg siab txoj kev. Raws li txoj kev tsis tshua muaj kev txhawj xeeb, muaj cov txheej txheem slurry, txoj kev daws teeb meem thiab cov txheej txheem roj. Txoj kev kub siab yog siv los tsim cov polyethylene tsawg ntom ntom. Txoj kev no tau tsim thaum ntxov. Cov polyethylene tsim los ntawm txoj kev no suav txog li 2/3 ntawm tag nrho cov zis ntawm polyethylene, tab sis nrogNyeem ntxiv…
Hloov Polyethylene yog dab tsi?
Hloov Polyethylene yog dab tsi? Kev hloov kho ntau yam ntawm polyethylene feem ntau suav nrog chlorinated polyethylene, chlorosulfonated polyethylene, cross-linked polyethylene thiab cov khoom sib xyaw ua ke. Chlorinated Polyethylene: Ib qho chloride random tau los ntawm kev hloov cov hydrogen atoms hauv polyethylene nrog chlorine. Chlorination yog nqa tawm raws li qhov pib ntawm lub teeb lossis peroxide, thiab feem ntau yog tsim los ntawm aqueous suspension method hauv kev lag luam. Vim qhov sib txawv ntawm qhov hnyav ntawm molecular thiab kev faib tawm, kev kawm qib siab, chlorination degree tom qab chlorination, chlorine atom faib thiab residual crystallinity ntawmNyeem ntxiv…
Lub cev thiab tshuaj muaj zog ntawm Polyethylene Resin
Lub cev thiab tshuaj lom neeg ntawm Polyethylene Resin Chemical Properties Polyethylene muaj cov tshuaj lom neeg ruaj khov thiab tiv taus dilute nitric acid, dilute sulfuric acid thiab cov concentration ntawm hydrochloric acid, hydrofluoric acid, phosphoric acid, formic acid, acetic acid, ammonia dej, amines, hydrogen. peroxide, sodium hydroxide, potassium hydroxide, thiab lwm yam tshuaj. Tab sis nws tsis muaj zog oxidative corrosion, xws li fuming sulfuric acid, concentrated nitric acid, chromic acid thiab sulfuric acid sib tov. Nyob rau hauv chav tsev kub, cov kuab tshuaj tau hais los saum toj no yuav maj mamNyeem ntxiv…
Gene yog dab tsiral Cov khoom ntawm Polyethylene Resin
Noobral Cov khoom ntawm Polyethylene Resin Polyethylene resin yog cov tsis muaj tshuaj lom, tsis muaj ntxhiab tsw dawb hmoov los yog granule, milky dawb nyob rau hauv tsos, nrog ib tug zoo li wax, thiab tsis tshua muaj dej nqus, tsawg dua 0.01%. Cov yeeb yaj kiab polyethylene yog pob tshab thiab txo qis nrog kev nce crystallinity. Cov yeeb yaj kiab polyethylene muaj cov dej tsis tshua muaj permeability tab sis huab cua permeability siab, uas tsis haum rau kev ntim khoom tshiab tab sis tsim nyog rau cov khoom ntim dej noo. Nws yog flammable, nrog cov pa ntsuas ntawm 17.4, cov pa luam yeeb tsawg thaum hlawv, me me ntawmNyeem ntxiv…
Classification ntawm Polyethylene
Kev faib tawm ntawm polyethylene Polyethylene muab faib ua high density polyethylene (HDPE), low density polyethylene (LDPE) thiab linear low density polyethylene (LLDPE) raws li txoj kev polymerization, molecular hnyav thiab saw qauv. LDPE Khoom: saj tsis qab, tsis muaj ntxhiab, tsis muaj tshuaj lom, npub nto, mis nyuj dawb ciab hais, ntom txog 0.920 g / cm3, melting point 130 ℃ ~ 145 ℃. Insoluble nyob rau hauv dej, me ntsis soluble nyob rau hauv hydrocarbons, thiab lwm yam. Nws muaj peev xwm tiv taus qhov yaig ntawm feem ntau cov acids thiab alkalis, muaj dej nqus dej tsawg, tseem tuaj yeem tswj tau yooj yim ntawm qhov kub thiab txias, thiab muajNyeem ntxiv…
Luv Taw Qhia ntawm Polyethylene Resin
Kev Taw Qhia luv luv ntawm Polyethylene Resin Polyethylene (PE) yog cov thermoplastic resin tau los ntawm polymerizing ethylene. Hauv kev lag luam, copolymers ntawm ethylene nrog me me ntawm alpha-olefins kuj suav nrog. Polyethylene resin tsis muaj ntxhiab tsw, tsis muaj tshuaj lom, zoo li siv quav ciab, muaj qhov kub thiab txias tsis kam (tsawg kawg ua haujlwm kub tuaj yeem ncav cuag -100 ~ -70 ° C), tshuaj lom neeg ruaj khov, thiab tuaj yeem tiv taus cov kua qaub thiab alkali feem ntau (tsis tiv taus oxidation. ntuj acid). Nws yog insoluble nyob rau hauv ntau cov kuab tshuaj nyob rau hauv chav tsev kub, nrog tsawg dej nqus thiab zoo heev hluav taws xobNyeem ntxiv…