Kev faib tawm tseem ceeb ntawm PVC
Sep 28, 2019| Shenzhen Shenchuang Hi-tech Electronics Co., Ltd (SChitec) yog lub tuam txhab ua haujlwm siab uas tshwj xeeb hauv xov tooj accessories ntau lawm thiab muag khoom. Peb cov khoom tseem ceeb muaj xws li kev mus ncig, chargers tsheb, USB cables, fais fab nyiaj hauv tuam txhab nyiaj thiab lwm yam khoom siv digital.Tag nrho cov khoom muaj kev nyab xeeb thiab txhim khu kev qha, nrog cov cim styles.products dhau daim ntawv pov thawj xws li CE, FCC, ROHS, UL, PSE, C-Tick, thiab lwm yam. , Yog tias koj txaus siab rau, koj tuaj yeem tiv tauj ceo@schitec.com ncaj qha.
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Kev faib tawm tseem ceeb ntawm PVC
Raws li daim ntawv thov, PVC tuaj yeem muab faib ua: dav dav PVC cob, high-polymerization PVC resin, cross-linked PVC cob. Lub hom phiaj ntawm PVC cob yog tsim los ntawm polymerization ntawm vinyl chloride monomer nyob rau hauv qhov kev txiav txim ntawm ib tug pib; high polymerization degree PVC resin yog hais txog ib qho resin tau los ntawm polymerizing ib tug saw extender nyob rau hauv ib tug vinyl chloride monomer polymerization system; crosslinked PVC resin yog ib tug cob tau los ntawm polymerizing ib tug crosslinking tus neeg saib xyuas uas muaj ib tug diene thiab ib tug polyene rau hauv ib tug vinyl chloride monomer polymerization system.
Raws li txoj kev tau txais vinyl chloride monomer, nws tuaj yeem muab faib ua calcium carbide method, ethylene method thiab imported (EDC, VCM) monomer method (ethylene method and the imported monomer method is commonly referred to as ethylene method).
Raws li txoj kev polymerization, polyvinyl chloride tuaj yeem muab faib ua plaub pawg loj: tshem tawm polyvinyl chloride, emulsion polyvinyl chloride, bulk polyvinyl chloride, thiab tshuaj polyvinyl chloride. Txoj kev tshem tawm ntawm polyvinyl chloride yog qhov ntau tshaj plaws ntawm ntau lawm, suav txog li 80% ntawm tag nrho cov khoom siv PVC. Txoj kev tshem tawm ntawm polyvinyl chloride yog muab faib ua rau cov qauv raws li cov viscosity kiag li: XS-1, XS-2, ... XS-6; XJ-1, XJ-2, ..., XJ-6. Lub ntsiab lus ntawm txhua tsab ntawv hauv tus qauv: X-txheej txheem txheej txheem; S-loj hom; J-tight type.
Raws li cov ntsiab lus ntawm plasticizer, PVC yas olefin yas feem ntau muab faib ua: tsis muaj plasticized PVC, cov ntsiab lus plasticizer yog 0; rigid PVC, cov ntsiab lus plasticizer tsawg dua 10%; semi-rigid PVC, cov ntsiab lus plasticizer Nws yog 10-30%; mos PVC, cov ntsiab lus yas yog 30-70%; polyvinyl chloride paste yas, cov ntsiab lus yas yog ntau tshaj 80%.