PVC Resins raug cais los ntawm lawv cov K-Tus Nqi, qhov taw qhia ntawm qhov hnyav molecular thiab degree ntawm polymerization.
• K70-75 yog cov K tus nqi siab uas muab cov khoom siv zoo tshaj plaws tab sis nyuaj rau kev ua haujlwm ntau dua.Lawv xav tau ntau plasticizer rau tib softness.Kev ua haujlwm siab Cable rwb thaiv tsev nyob rau hauv Suspension resin thiab tawv coatings rau Conveyor siv, Industrial Flooring thiab zoo sib xws high-end daim ntaub ntawv nyob rau hauv Paste qib yog ib co nrov daim ntawv thov.Nws yog tus nqi tshaj plaws.
• K65-68 yog nruab nrab K nqi resin uas nrov tshaj plaws.Lawv muaj qhov sib npaug zoo ntawm Mechanical zog thiab kev ua haujlwm zoo.UPVC (Unplasticised lossis Rigid PVC) yog tsim los ntawm cov qib ntxeem tau tsawg dua thaum Cov Ntawv Siv Plasticised yog qhov zoo tshaj plaws los ntawm cov qib ntxeem tau ntau dua.Muaj ntau txoj kev xaiv qib raws li lawv ua raws li feem ntau ntawm cov ntawv thov PVC.Vim nws qhov ntim me me no tsev neeg ntawm PVC resins yog tus nqi qis tshaj.
• K58-60 yog K-tus nqi qis.Mechanical zog yog qis tshaj, tab sis kev ua haujlwm yog qhov yooj yim tshaj plaws.Ntau qhov nyuaj rau kev ua cov ntawv thov xws li kev txhaj tshuaj molding, tshuab moulding thiab Clear Calendered ntim zaj duab xis yog tsim los ntawm cov nqi qis dua K.Cov nqi siab dua li Medium K Value Resins.
• K50-55 yog cov cob tshwj xeeb uas tsim los rau qee qhov kev thov.Qhov txaus nyiam yog Roj Teeb Separator Resins thiab Blending resins siv nrog rau Paste Qib resin los txo cov nqi.Kev ua haujlwm yog qhov yooj yim tshaj plaws.
Raws li PVC yog 56% Chlorine, nws yog ib qho ntawm ob peb Polymers uas yog tus kheej tua, raws li Chlorine yog ib tug muaj zog nplaim inhibitor.
Tus nqi K hauv PVC yog dab tsi?
K - Tus nqi yog qhov ntsuas ntawm qib ntawm polymerization lossis tus lej ntawm cov monomers hauv PVC saw lossis qhov hnyav molecular.Txij li thaum % ntawm PVC hauv cov yeeb yaj kiab thiab cov ntawv yog qhov tseem ceeb, nws tus nqi K ua lub luag haujlwm tseem ceeb heev.K - Tus nqi muaj txiaj ntsig rau cov khoom ntawm PVC cob, kev ua haujlwm nrog rau cov khoom ntawm cov khoom.7.
k67 PVC cob yog dab tsi?
PVC Resin Virgin (K -67), feem ntau luv luv PVC, yog qhov thib peb-feem ntau tsim cov polymer, tom qab polyethylene thiab polypropylene.Daim ntawv nruj ntawm PVC yog siv rau hauv kev tsim kho rau cov yeeb nkab thiab hauv cov ntawv thov profile xws li qhov rooj thiab qhov rais.
PVC resin yog dab tsi?
Poly Vinyl Chloride Resin los yog PVC Resin raws li nws yog nrov hu ua, yog ib tug thermoplastic Resin uas yuav softened ntawm reheating.Ib lo lus zoo rau cov khoom siv polymer no yog Vinyl.Feem ntau muaj nyob rau hauv daim ntawv ntawm cov hmoov, PVC granules yog heev resistant rau oxidisation thiab degradation los ntawm atmospheric cov tshuaj tiv thaiv.
K tus nqi yog dab tsi?
K-tus nqi tsuas yog luv luv rau thermal conductivity.Thermal conductivity, n: lub sij hawm tus nqi ntawm lub xeev khov kho cua sov ntws los ntawm ib cheeb tsam ntawm ib homogeneous khoom induced los ntawm ib chav tsev kub gradient nyob rau hauv ib tug kev taw qhia perpendicular mus rau lub chav tsev cheeb tsam.
Yuav ua li cas koj xam tus nqi k?
Lawv tuaj yeem suav tau raws li 1 / (tus lej ntawm qhov kev tawm tsam ntawm ntau txheej txheej ntawm lub caij (nws R-tus nqi) + qhov tsis kam ntawm sab hauv thiab sab nraud ntawm lub caij).
Puas muaj qib sib txawv ntawm PVC?
Muaj ob hom PVC yeeb nkab - teem caij 40 PVC thiab teem caij 80 PVC.Teem sijhawm 40 PVC feem ntau yog xim dawb thiab lub sijhawm 80 feem ntau yog grey tsaus (lawv tuaj yeem pom hauv lwm cov xim).Lawv qhov sib txawv tseem ceeb tshaj plaws, txawm li cas los xij, yog nyob rau hauv lawv tus qauv tsim.Teem caij 80 yeeb nkab yog tsim los nrog cov phab ntsa tuab.
UPVC siv rau dab tsi?
UPVC, tseem hu ua Unplasticized Polyvinyl Chloride, yog cov khoom siv hauv tsev uas tsis tshua muaj siv los hloov cov xim ntoo, feem ntau rau cov qhov rais thav duab thiab cov sills thaum txhim kho ob chav glazing hauv cov tsev tshiab, los yog hloov cov qhov rais qub qub.
Koj xam k nqi li cas?
Txhawm rau xam K-Tus Nqis ntawm rwb thaiv tsev, tsuas yog faib cov thickness (hauv ntiv tes) los ntawm R-Value.
Tus nqi K yog dab tsi?
K-tus nqi tsuas yog luv luv rau thermal conductivity.Thermal conductivity, n: lub sij hawm tus nqi ntawm lub xeev khov kho cua sov ntws los ntawm ib cheeb tsam ntawm ib homogeneous khoom induced los ntawm ib chav tsev kub gradient nyob rau hauv ib tug kev taw qhia perpendicular mus rau lub chav tsev cheeb tsam.Qhov kev txhais no yeej tsis yog qhov nyuaj.
K hauv viscosity yog dab tsi?
K tus nqi (viscosity), yog ib qho kev ntsuas tsis zoo uas cuam tshuam nrog cov viscosity intrinsic, feem ntau txhais nyob rau hauv me ntsis txawv txoj kev nyob rau hauv txawv industries los qhia viscosity raws li kwv yees ntawm statistical molecular mass ntawm polymeric khoom siv tshwj xeeb rau PVC.
Dab tsi yog cov tshuaj formula rau PVC?
PVC yog polyvinyl chloride.Qhov no yog cov yas uas muaj cov tshuaj hauv qab no: CH2 = CHCl (saib daim duab ntawm sab xis).Yas npog qhov kev npau taws dav ntawm cov khoom hluavtaws lossis semi-synthetic polymerization cov khoom (piv txwv li cov hlua ntev carbon-raws li "organic" molecules) uas lub npe hais txog qhov tseeb tias nyob rau hauv lawv cov semi-kua...
Cov tshuaj tiv thaiv ntawm PVC yog dab tsi?
PVC yog tsim los siv cov txheej txheem hu ua ntxiv polymerization.Cov tshuaj tiv thaiv no qhib ob daim ntawv cog lus nyob rau hauv vinyl chloride monomer (VCM) tso cai rau cov nyob sib ze molecules los koom ua ke tsim cov saw ntev molecules.nC2H3Cl = (C2H3Cl)n vinyl chloride monomer = polyvinylchloride
Dab tsi yog cov yam ntxwv ntawm lub cev ntawm PVC?
Lub cev thiab txhua yam khoom siv: PVC yog ib qho atactic polymer thiab yog li qhov tseem ceeb uncrystallized.Txawm li cas los xij, qee zaum nws tshwm sim tias, hauv zos, hla ntu luv luv, PVC yog syndiotactic thiab tuaj yeem xav tias cov theem crystalline, tab sis feem pua ntawm cov pob txha tawg tsis tshaj 10 mus rau 15%.Qhov ceev ntawm PVC yog 1.38 g / cm33.
Post lub sij hawm: Apr-07-2022