Nibihe bintu bigira ingaruka kumabara yumwirondoro wera PVC?

Ingaruka Zihamye

PVC resin ni ibikoresho byumva ubushyuhe, kandi hariho inenge nyinshi mumiterere yabyo ya molekile, nk'imigozi ibiri, amatsinda ya allyl, amatsinda atangiza abasigaye, nibindi. urumuri rwo gukora radicals yubuntu.Mubikorwa bya radicals yubusa, polyvinyl chloride ihura na dehydrochlorination no kwangirika ukurikije uburyo bwurunigi.Imyitwarire idahwitse ya dehydrochlorination itanga urukurikirane rwa polyene ihuza imigozi ibiri ihuza urunigi nyamukuru rwa molekile ya polyvinyl chloride, ikaba ari imiterere ya chromogeneque.Mugihe cyose umubare wububiko bubiri bwa conjugated ugera kuri 5 ~ 7, polyvinyl chloride itangira guhinduka, iyo irenze 10, ihinduka umuhondo, urukurikirane rwa conjugated rukomeza kwiyongera, kandi ibara rya chloride polyvinyl rigenda ryiyongera buhoro buhoro, amaherezo rikaba umukara cyangwa cyangwa ndetse umukara.Kugumana ituze rya PVC mugihe cyo gutunganya ubushyuhe nishingiro ryimirimo yose yo gutonesha no kwera.

Ingaruka yubushyuhe

Umwirondoro wa pulasitike ya PVC ushyizwemo plastike kandi ugakorwa ku bushyuhe bwa 185 ~ 195 ° C, kandi igihe cyo gushyuha ni kirekire nkiminota mike, bisaba pigment na francers byahoze bifite ubushyuhe bwinshi.Kuri dioxyde ya rutile ya rutile, imiterere yayo ya kirisiti ni cube, Ti atom na O atom byegeranye cyane, imiterere ya kirisiti irahagaze neza, kandi irashobora gukomeza gushikama kumiterere n'imikorere munsi yubushyuhe bwo gutunganya imyirondoro ya PVC;ultramarine ni silikatike ya aluminium.Amazi arimo sulferi, kurwanya ubushyuhe nabyo ni byiza cyane.Nyamara, kubintu byera bya fluorescent, ubwoko butandukanye bwibintu byera bya fluorescent nabyo bifite itandukaniro mubikorwa byabo byo kurwanya ubushyuhe.

Ingaruka ya aside

Gahunda yo gutunganya PVC ihora iherekezwa no kubora kwa molekile ya PVC, kandi hydrogène chloride nyinshi ikorwa mugihe cyo kubora.Umwuka wa hydrogène chloride ku bushyuhe bwo hejuru ubora cyane kandi ni aside.Mu bikoresho bitatu byavuzwe haruguru, TiO2 ifite aside irwanya ruswa nyinshi, ikurikirwa n’ibikoresho byera bya fluorescent, naho ubururu bwa ultramarine ni bubi cyane (mu bidukikije bya acide, ubururu bwa ultramarine buva mu bururu bukagera ku cyera kandi bukabyara ibibyimba binini).Impamvu ubururu bwa ultramarine buracyakoreshwa mugutegura umwirondoro aho kuba ubururu bwa phthalocyanine hamwe na aside irwanya aside ni ukubera ko imbaraga zo gusiga ubururu bwa phthalocyanine zikomeye cyane, zikubye inshuro 20 ~ 40 z'ubururu bwa ultramarine.Ubushobozi bwo kuvanga bwa mixer, ingano yubururu bwa ultramarine muri buri kigereranyo ni 5 ~ 20g gusa.Niba isimbuwe na phthalocyanine ubururu, umubare wongeyeho ni muto cyane, kandi ikosa ryo gupimisha ni rinini cyane, bizatera ibyiciro bya profil kugaragara.Gukuramo chromatic.

Ingaruka zinyongera

Ibikoresho byo gukora nubuhanga bwa PVC imyirondoro ya plastike mugihugu cyanjye bitumizwa cyane muburayi no muri Amerika.Haracyariho umubare munini w'isasu muri yo.Amazi ya sulferi arimo ubururu bwa ultramarine arashobora gukorana nisasu muri stabilisateur, bikaviramo umwirabura sulfide wirabura umwirondoro wanduye.

Ingaruka ya dosiye imurika

Dioxyde ya Titanium niyo shingiro rya toning naumweruya PVC yera.Mugihe ingano ya dioxyde ya titanium yiyongera, umweru wibicuruzwa uriyongera.

Mubyongeyeho, nkibikoresho nyamukuru bikingira UV mugutegura ibikoresho byanditse, urugero rwa dioxyde ya titanium nayo ifite ibyo isabwa.Muri rusange, urugero rwa dioxyde ya titanium igomba kugera kuri 4 ~ 8phr.

Ubururu bwa Ultramarine bukoreshwa "gutwikira umuhondo" kugirango ugere ku ntego yo kwera.Niba igipimo ari gito cyane, ingaruka zo kwera ntabwo ari nziza.Niba igipimo ari kinini cyane, biroroshye gutuma ibintu byanditse bigaragara nkubururu kandi bikabyara sulfide nyinshi, bigira ingaruka kumurabyo hejuru yibikoresho byanditse.Kubwibyo, ingano yacyo isanzwe igenzurwa kuba 0.5% bya dosiye ya dioxyde de titanium.

Fluorescent yerairashobora kwinjiza neza imirasire ya ultraviolet yuburebure bwumurongo runaka hanyuma ikohereza muburyo bwurumuri rugaragara.Hamwe no kwiyongera kwingingo ya fluorescent yera, umweru wibicuruzwa uriyongera;ariko iyo fluorcente yera igeze kumurongo runaka, gukomeza kongera umubare nta ngaruka nini bigira ku mweru wa profili ya PVC, kandi rimwe na rimwe iragabanuka, kandi umubare ni munini.Ingaruka kumikorere yo gutunganya nibikorwa byumubiri nubukanishi bwibikoresho byanditse bigomba gusuzumwa.