PVC - yog dab tsi? PVC ntau lawm technology thiab daim ntaub ntawv

Yog hais tias koj xav siv nyob rau hauv kev tsim kho los yog kho ntawm PVC, nws yog ib qho tseem ceeb kom paub ua ntej yuav siv cov khoom. Qhov no cov ntaub ntawv uas yog ib tug hluavtaws thermoplastic textures.

yam ntxwv ntawm PVC

Nyob rau hauv lub Hoobkas tej yam kev mob nws ua ob PVC hom, cov ua ntej uas yog plasticized, thaum lub sij hawm thib ob - unplasticized. Nyob rau hauv lub caij nyoog kawg no cov ntaub ntawv, ib tug plasticizer siv. Externally, PVC muaj hauv daim ntawv ntawm ib tug dawb hmoov uas yog muaj ntxhiab. Nws muaj ib tug zoo siab thiab lub dag lub zog thaj chaw ntawm lub dielectricity. Yog hais tias koj txiav txim siab mus yuav PVC, nws yog dab tsi tsim nyog mus kawm. Nws yog resistant rau alkalis, ntxhia roj, kua qaub, thiab insoluble nyob rau hauv cov dej. Txhawb txoj kev sib nrauj thiab o ketones, esters, thiab uas muaj ntxhiab thiab chlorinated hydrocarbons. Khoom thev oxidation thiab yuav luag tsis hlawv. Polyvinyl tshuaj dawb muaj ib tug tsis heev impressive thaum tshav kub kub resistant cov yam ntxwv thaum raug kub ntawm 100 degrees nws pib decompose. Nyob rau hauv thiaj li yuav ua tau tshav kub tsis kam thiab txhim kho qhov zoo ntawm lub solubility ntawm PVC raug chlorination.

Scope ntawm kev siv

Niaj hnub no, kuj pom coob leej ntau tus PVC. Yuav ua li cas yog nws txhua leej txhua tus yuav tsum paub handyman thiab ib tug kws nyob rau hauv lub tshav pob ntawm kev tsim kho. Qhov no cov ntaub ntawv uas yog siv nyob rau hauv cov tshuaj, hloov iav thiab roj hmab. Yog li, peb tswj kom tau ib tug-lub sij hawm cov khoom. Vim nws tshuaj stability thiab inertia, PVC tau tau siab chaw nyob rau hauv lub hais tias cheeb tsam. Cov khoom siv los ntawm nws muaj ntau haiv neeg thiab yooj yim manufactured los ntawm, thiab yog npaum li cas cheaper dua cov yav tas los siv cov ntaub ntawv.

PVC yog siv nyob rau hauv lub tsheb thauj mus los kev lag luam. Nws yog siv nyob rau hauv qhuav ntawm qhov rooj panels, armrests, raws li zoo raws li lub creation ntawm cable rwb thaiv tsev. Precisely vim hais tias ntawm no lub tsheb pib muaj ib tug ntev lub sij hawm ntawm lub neej, uas yog nce nyob rau hauv kev sib piv nrog yav dhau los cov nuj nqis rau rau xyoo. Qhov no mus kom ze yuav ua rau kom muaj kev ruaj ntseg kev thauj, raws li nrog PVC yuav tsim airbags thiab kev tiv thaiv panels, uas yog tau los tiv thaiv coob uas xam nrog ntawm kev raug mob nyob rau hauv cov ntaub ntawv ntawm cov xwm txheej.

Kho thiab kev tsim kho

Xav lub polyvinyl tshuaj dawb hais tias nws yog ua tau rau kawm tau los ntawm qhov tsab xov xwm. Qhov no cov ntaub ntawv uas yog siv niaj hnub no nyob rau hauv lub tsim saib. Xws li ib tug tseem muaj nyob ua tsaug rau lub fact tias niaj hnub siv tshuab tso cai rau koj los ua ib tug PVC khoom ntawm yam zoo. Yog li, nws yog tau los mus tsim sab hauv ntsiab. Feem ntau cov feem ntau, qhov no polymer yuav muaj nyob rau hauv lub tsev. Nws ua hnav-resistant, txhav, khaub-ncaws nyias cov khoom uas paug tiv nrog corrosion thiab tshuaj los. Xws li ib tug siab chaw nyob rau hauv kev tsim kho kev lag luam tseem yog vim hluav taws kev ruaj ntseg, cov khoom tsis yog yooj yim rau zes thiab tsis hlawv thiab smolder thaum xa kub qhov chaw. Uas yog vim li cas cov khoom no yuav siv tau rau tej khoom, uas yog yuav tsum tau kom muaj zog hluav taws kev ruaj ntseg. PVC khoom yus durability, tshaj 75 feem pua ntawm cov hlab uas yog ua los ntawm nws muaj qhov tseem ceeb heev kev ua si los ntawm ntau tshaj 40 xyoo.

ntau lawm technology

Kev npaj ntawm polyvinyl tshuaj dawb radical polymerization yog nqa tawm los ntawm raw khoom, uas ua raws li yas chloride. Cov feem ntau lug siv nyob rau hauv qhov kev lag luam yog ib tug slurry txheej txheem, qhov no yog vim lub fact tias nws muaj kev kawm ntawv siab. Xws li ib tug polymerization yog ua nyob rau hauv lub periodic system. Yas chloride, uas yog muaj nyob rau hauv tus nqi ntawm 0,02 - 0.05 ib xees nyob rau hauv lub aqueous nruab nrab siv tau raws li lub ntsiab tivthaiv. Qhov npaj feedstock yog rhuab mus rau 65 degrees, thiab ces raug mus rau ib tug zoo xws li cov feem kom tau ib tug homogeneous khoom. Lub polymerization yuav siv sij hawm qhov chaw nyob rau hauv lub mob ntawm yas chloride. Nyob rau hauv lub kawg, tsis tau tau ntxeem tau microgranules. Qhuav ntawm tag nrho cia li, thaum lub sij hawm polymerization yog nqa tawm nyob rau hauv reactors uas nws volume yog ntau tshaj 200 cubic meters. Tom qab kawm tiav ntawm lub polymerization degree ntawm yas chloride, uas yog reacted los ntawm lub sij hawm no, mus txog 90 feem pua. Hais tias twb tsis siv raug muab tshem tawm, thaum PVC yog sieved thiab qhuav nrog huab cua kub. Tom qab ntawd tshwm sim ntim. PVC, cov khoom uas tau raug piav saum toj no, lub xeem kauj ruam yog hloov dua siab tshiab rau hauv yas liner los yog yas compound.

Qhov kawg PVC khoom

PVC ntaub ntawv uas yuav tsum hloov dua siab tshiab rau hauv yas liner. Nws yog ib tug nyuaj khoom. Yus ib tug siab txhua yam dag lub zog, resistant mus tshuaj nres thiab waterproof. Ntawm cov shortcomings yuav qhia tau cov neeg pluag tej yam zog, cov neeg pluag te kuj thiab me ntsis kev khiav hauj lwm pib. Nrog kev xav txog cov stiffener, nws yog mos cov khoom noj uas muaj ib tug tseem ceeb elasticity. Lawv kuj yus muaj los ntawm cov dej kuj thiab roj kuj. Lawv yauv mus zoo feem ntawm ntau yam organic kuab tshuaj.

xaus

PVC, kav los ntawm uas yog ua hnub no, sawv raws li ib tug ntawm feem ntau cov ntaub ntawv xws li yas. Ntiaj teb lawm yog hais txog 17 rau ib xees ntawm tag nrho cov zis ntawm yas khoom, thiab Qib peb ntawm cov polymers. Cov khoom ua los ntawm PVC, pom ua daim ntawv thov nyob rau hauv ntau cov nplais ntawm kev khwv nyiaj txiag, kev lag luam, hnyav engineering, tshuaj thiab ua liaj ua teb. Niaj hnub no, yuav luag txhua txhua lub tsev yog txawm peem rau nrog yas qhov rais, raws li zoo raws li siv cov khoom nyob rau hauv lub hauv paus ntawm lub piav khoom. Nws yog thoob plaws qhia zoo heev zoo cov yam ntxwv ntawm cov saum toj no cov ntaub ntawv uas uas muaj siab zog, ua hauj lwm puas tsuaj thiab raug nyiaj ntau yam xwm.