Polyvinyl chloride (PVC) yog ib tug polymerization ntawm polymerization ntawm vinyl chloride monomer (VCM) nyob rau hauv lub xub ntiag ntawm pib xws li peroxides thiab azo tebchaw los yog los ntawm lub mechanism ntawm dawb radical polymerization nyob rau hauv qhov kev txiav txim ntawm lub teeb los yog kub. PVC yog cov khoom siv polymer uas siv cov tshuaj chlorine atom los hloov cov hydrogen atom hauv polyethylene, thiab vinyl chloride homopolymers thiab vinyl chloride copolymers tau sau npe hu ua vinyl chloride resins.
PVC molecular chains muaj cov polar chlorine atoms uas muaj zog intermolecular siab, uas ua rau PVC cov khoom muaj zog dua, nyuaj, thiab mechanically suab, thiab muaj nplaim taws retardancy zoo heev (nplaim retardancy yog hais txog cov khoom uas muaj los yog cov khoom muaj tom qab kho. tseem ceeb ncua kev sib kis ntawm nplaim taws); Txawm li cas los xij, nws qhov dielectric tas li thiab dielectric poob lub kaum ntse ntse yog qhov loj dua li ntawm PE.
PVC resin muaj ib tug me me ntawm ob daim ntawv cog lus, branched chains thiab pib residues tshuav nyob rau hauv lub polymerization cov tshuaj tiv thaiv, ntxiv rau cov tshuaj chlorine thiab hydrogen atoms ntawm ob lub atoms uas nyob ib sab carbon atoms, uas yog yooj yim dechlorinated, ua rau degradation cov tshuaj tiv thaiv ntawm PVC yooj yim nyob rau hauv qhov kev txiav txim. ntawm lub teeb thiab cua sov. Yog li ntawd, PVC cov khoom yuav tsum tau ntxiv cov cua sov stabilizers, xws li calcium-zinc tshav kub stabilizer, barium-zinc tshav kub stabilizer, lead ntsev tshav kub stabilizer, organic tin stabilizer, thiab lwm yam.
Cov ntawv thov tseem ceeb
PVC los ntawm ntau hom thiab tuaj yeem ua tiav ntau txoj hauv kev, suav nrog nias, extruding, txhaj tshuaj, thiab txheej. PVC yas feem ntau yog siv rau hauv kev tsim cov yeeb yaj kiab, tawv tawv, rwb thaiv tsev ntawm cov xov hlau thiab cables, cov khoom tsis sib xws, hauv pem teb, rooj tog zaum, khoom siv ua kis las, thiab lwm yam.
Cov khoom siv PVC feem ntau muab faib ua 3 pawg: nruj, semi-rigid thiab mos. Rigid thiab semi-rigid khoom yog ua tiav yam tsis muaj los yog nrog ib tug me me ntawm cov plasticizer, thaum cov khoom muag yog tiav nrog ib tug loj npaum li cas ntawm plasticizer. Tom qab ntxiv cov plasticizers, lub iav hloov pauv kub tuaj yeem txo qis, uas ua rau nws yooj yim dua rau kev ua haujlwm ntawm qhov kub thiab txias thiab ua kom yooj yim thiab plasticity ntawm cov saw hlau molecular, thiab ua rau nws tuaj yeem ua cov khoom muag muag uas hloov tau ntawm chav tsev kub.
1. PVC profiles
Feem ntau yog siv los ua qhov rooj thiab qhov rais thiab cov ntaub ntawv txuag hluav taws xob.
2. PVC kav
Cov kav dej PVC muaj ntau yam, kev ua tau zoo thiab kev siv ntau yam, thiab tuav txoj haujlwm tseem ceeb hauv kev ua lag luam.
3. PVC zaj duab xis
PVC tuaj yeem ua rau pob tshab lossis xim zaj duab xis ntawm cov tuab tuab los ntawm kev siv daim ntawv qhia hnub, thiab cov yeeb yaj kiab tsim los ntawm txoj kev no hu ua calendered film. PVC granular raw cov ntaub ntawv tseem tuaj yeem raug tshuab rau hauv zaj duab xis siv tshuab tshuab moulding, thiab zaj duab xis tsim los ntawm txoj kev no hu ua tshuab moulding zaj duab xis. Cov yeeb yaj kiab tuaj yeem siv rau ntau lub hom phiaj thiab tuaj yeem ua tiav rau hauv hnab, raincoats, tablecloths, curtains, inflatable cov khoom ua si, thiab lwm yam los ntawm kev txiav thiab kub-sealing txoj kev. Cov yeeb yaj kiab dav dav tuaj yeem siv los tsim cov tsev cog khoom thiab cov tsev cog khoom yas, lossis siv ua cov yeeb yaj kiab hauv pem teb.
4. PVC board
Ntxiv nrog rau stabilizer, lubricant thiab muab tub lim, thiab tom qab sib tov, PVC tuaj yeem extruded rau hauv ntau yam caliber nyuaj kav, zoo li tus kav thiab corrugated kav nrog extruder, thiab siv raws li downpipe, haus dej yeeb nkab, hluav taws xob hlau casing los yog staircase handrail. Cov nplooj ntawv calendered yog overlapped thiab kub nias kom nruj cov nplooj ntawv ntawm ntau yam thicknesses. Cov nplooj ntawv tuaj yeem raug txiav rau hauv cov duab uas xav tau thiab tom qab ntawd welded nrog cua kub siv PVC vuam rods rau hauv ntau yam tshuaj-resistant cia tank, ducts thiab ntim, thiab lwm yam.
5. PVC cov khoom muag muag
Siv cov extruder, nws tuaj yeem raug extruded rau hauv hoses, cables, xov hlau, thiab lwm yam .; siv lub tshuab txhaj tshuaj molding nrog ntau yam pwm, nws tuaj yeem ua rau hauv cov khau yas, khau khau, khau khiab, cov khoom ua si, qhov chaw pib, thiab lwm yam.
6. PVC ntim cov ntaub ntawv
PVC cov khoom siv rau kev ntim khoom feem ntau yog siv rau ntau lub thawv, zaj duab xis thiab cov ntawv nyuaj. PVC ntim yog tsim los rau cov dej ntxhia, dej haus, fwj tshuaj pleev ib ce, tab sis kuj rau cov ntim roj refined.
7. PVC siding thiab flooring
PVC siding feem ntau yog siv los hloov aluminium siding, PVC pem teb vuas, tshwj tsis yog rau ib feem ntawm PVC resin, cov khoom seem yog cov khoom siv rov ua dua tshiab, cov nplaum, cov khoom ntim thiab lwm yam khoom siv, feem ntau yog siv hauv tshav dav hlau dav hlau hauv pem teb thiab lwm qhov chaw nyuaj. hauv av.
8. PVC cov khoom siv
Cov khoom siv PVC tuaj yeem pom nyob txhua qhov chaw hauv peb lub neej txhua hnub. PVC yog siv los ua ntau yam khoom siv tawv tawv rau lub hnab nqa khoom, cov khoom ua si xws li pob tawb, ncaws pob thiab cov khoom sib tw. Nws kuj yog siv los ua cov khaub ncaws hnav thiab cov khoom siv tiv thaiv tshwj xeeb. PVC fabrics rau khaub ncaws yog feem ntau absorbent fabrics (tsis muaj txheej yuav tsum tau) xws li ponchos, tus me nyuam ris, dag tawv tsho thiab ntau yam los nag khau looj plab hlaub. PVC kuj tseem siv rau hauv ntau yam khoom ua si thiab kev lom zem xws li cov khoom ua si, cov ntaub ntawv thiab cov khoom ua si.
Post lub sij hawm: Lub Xya hli ntuj-19-2023