Porogaramu

PVC resin nigice kinini cyumugozi wa PVC, kandi ubwiza bwacyo bugira uruhare runini kumiterere yamashanyarazi namashanyarazi yibikoresho bya kabili.

1 Uburyo bwo kuyobora PVC

Muri rusange, imiyoboro ya electron hamwe nogutwara ion bigaragara muri polymers, ariko impamyabumenyi iratandukanye.Itandukaniro rinini hagati yuburyo bubiri bwo kuyobora ni itandukaniro mubatwara ibicuruzwa.Muri polymers, umutwarwa wamazi yuburyo bwo gutwara electron ni electron yubuntu ifite π bond electron.Amazi atwara uburyo bwo gutwara ion muri rusange nibyiza kandi bibi.Hafi ya polymers nyinshi zishingiye kumashanyarazi ya elegitoronike ni conjugated polymers, kandi urunigi nyamukuru rwa PVC ahanini ruhuza umurongo umwe, ntirufite sisitemu ifatanye, bityo rero ikora cyane cyane amashanyarazi ikoresheje ion.Ariko, imbere yumucyo uriho na UV, PVC izakuraho HCl hanyuma ikore ibice bya polyolefin idahagije, nuko hariho π-zahujwe na electron, zishobora gutwara amashanyarazi.

Uburemere bwa molekile

Ingaruka yuburemere bwa molekuline ku mikorere ya polymers ifitanye isano nuburyo nyamukuru bwo kuyobora polymers.Ku myitwarire ya electron, ubwiyongere buziyongera kuko uburemere bwa molekile bwiyongera kandi umuyoboro wimbere wa electron uramba.Kugabanuka kwibiro bya molekile, iyimuka rya ion ryiyongera kandi ubwiyongere bukiyongera.Muri icyo gihe, uburemere bwa molekile nabwo bugira ingaruka kumikorere yibikoresho bya kabili.Uburemere buremereye bwa PVC resin, niko birwanya ubukonje bwayo, ubushyuhe bwumuriro nimbaraga za mashini.

2.2.2

Ubushyuhe bwumuriro nimwe mubintu byingenzi kandi byingenzi kugirango dusuzume ubuziranenge bwa resin.Ihindura mu buryo butaziguye tekinoroji yo gutunganya ibicuruzwa byo hasi hamwe nibicuruzwa.Hamwe nogukoresha cyane ibikoresho byubwubatsi bwa PVC, ibyifuzo byubushyuhe bwumuriro wa PVC bigenda byiyongera.Gusaza kwera nigipimo cyingenzi cyo gusuzuma ituze rya resin, kugirango tumenye neza ubushyuhe bwa resin.

2.2.3 Ibirimo

Muri rusange, PVC ikora amashanyarazi cyane cyane itwarwa na ion, bityo ion zigira ingaruka zikomeye kumuyoboro.Ibyuma (Na +, K +, Ca2 +, Al3 +, Zn2 +, Mg2 +, nibindi) muri polymer bigira uruhare runini, mugihe anion (Cl-, SO42-, nibindi) zidafite uruhare runini mumashanyarazi kubera radiyo nini nigipimo cyo kwimuka gahoro.Ibinyuranye, iyo PVC ishobora gutera ingaruka za dechlorine munsi yumuriro wamashanyarazi na UV, Cl- irekurwa, mugihe anion igira uruhare runini.

2.2.4 Ubucucike bugaragara

Ubucucike bugaragara hamwe no kwinjiza amavuta ya resin bigira ingaruka kumiterere ya nyuma yo gutunganya resin, cyane cyane plastike ya resin, kandi plastike igira ingaruka kumiterere yibicuruzwa.Muburyo bumwe bwo gutunganya no gutunganya, resin ifite ubucucike bugaragara kandi bworoshye ugereranije, bishobora kugira ingaruka ku ihererekanyabubasha ryibikoresho muri resin, bikaviramo kurwanya cyane ibicuruzwa.

2.2.5

PVC isubira muri "fisheye", ion zanduye nibindi bintu mugikorwa cyo gukora insinga bihinduka umwanda umeze nkuwitwa knob, kugirango ubuso bwumugozi butagenda neza, bigira ingaruka kumiterere yibicuruzwa, na "knobs" hafi yo gushiraho amashanyarazi runaka. icyuho, gusenya ibikoresho bya PVC biranga imikorere yimikorere.

Mubihe bimwe nyuma yo gutunganyirizwa hamwe, ubucucike bugaragara, kwinjiza plasitike nibindi bipimo byerekana ingaruka bigira ingaruka nyuma yo gutunganywa, kandi urwego rutandukanye rwa plastike rutera itandukaniro ryimikorere yibicuruzwa.

Mubyongeyeho, ubushakashatsi bwerekanye ko inyongeramusaruro hamwe nitsinda ryimikorere zishobora gutangizwa nyuma ya polyvinyl chloride polymerisation, kurugero, nyuma ya synthesis cyangwa mbere yo gukama bwa nyuma.Poly ifite ubuhehere bwa 1 ~ 30% hamwe na 0.0002 ~ 0.001% aside polycarboxylique, irashobora kunoza ingano yibicuruzwa.IRIBURIRO RYA 0.1-2% fosifate ion irimo INGINGO (alkyl hydrogen fosifate, ammonium oxyphosphate, C≤20 alkyl fosifate, fosifike kama) muri chloride ya polyvinyl ihagarikwa, hamwe no kongeramo ibyuma bya alkaline byubutaka birimo 0.1-2%, kugirango rero ubibike kuri polymer, birashobora kunoza neza kurwanya amajwi hamwe na dielectric ihoraho ya resin.