Polyisobutylene (PIB)

Polyisobutylene (PIB)ni ibara ritagira ibara, ritaryoshye, ridafite uburozi bwimbitse cyangwa igice gikomeye, kurwanya ubushyuhe, kurwanya ogisijeni, kurwanya ozone, kurwanya ikirere, kurwanya ultraviolet, aside aside na alkali hamwe nindi miti ikora neza.Polyisobutylene ni ibara ritagira ibara, ritagira impumuro nziza, idafite uburozi isobutylene homopolymer.Bitewe nuburyo butandukanye bwo gutegura nuburyo bwa tekinoloji, molekuline ya Chemical Book ya polyisobutylene iratandukanye murwego runini.Ibyinshi muburemere bwa molekuline yibicuruzwa bigera ku barenga 10,000 kugeza 200.000 bizahindurwa biva mumazi yuzuye bihinduke igice gikomeye, hanyuma bihindurwe kuri reberi imeze nka elastomer.Polyisobutylene irwanya aside, alkali, umunyu, amazi, ozone no gusaza, kandi ifite umwuka mwiza cyane hamwe n’amashanyarazi.

Ibikoresho bya shimi:ibara ritagira ibara ryijimye ry'umuhondo viscous fluid cyangwa elastique rubbery semisolid (uburemere buke bwa molekile bworoshye gelatinous, uburemere buke bwa molekile burahinduka kandi bworoshye).Impumuro zose, impumuro nziza cyangwa umunuko muto.Ikigereranyo cy'uburemere bwa molekile ni 200.000 ~ 87.Gukemura muri benzene na diisobutyl Chemical Book, birashobora kutumvikana na acetate ya polyvinyl, ibishashara, nibindi, bidashonga mumazi, inzoga nizindi mashanyarazi.Irashobora gutuma isukari ya gum ifite ubworoherane buhebuje ku bushyuhe buke, kandi ikagira plastike imwe mubushyuhe bwo hejuru kugirango isubize intege nke za acetate ya polyvinyl mugihe hakonje, ikirere gishyushye hamwe no koroshya cyane iyo bihuye nubushyuhe bwumunwa.

Porogaramu:PIB izwiho kuba ifunze neza kandi ifata neza, ikoreshwa kenshi mu gufatisha, gutwikira, no gufunga kashe.PIB ya reberi imeze nkibikoresho bituma ihitamo neza mugushiraho no guhuza porogaramu, kuko ifasha gutanga umurongo ukomeye kandi urambye muburyo bwinshi.Usibye imikoreshereze ifatika, PIB ikoreshwa muburyo bwo kwisiga no kwita kubantu kugiti cyabo bitewe nuburyo bwiza bwo gukemura.Ibintu bikunze guhuzwa nibindi bikoresho kugirango bikore ibicuruzwa bifite imiterere yihariye kandi yumve.

PIB ifite uburyo butandukanye bwo gukoresha mubiribwa nabyo.Ibintu bisanzwe bikoreshwa nkibyimbye, stabilisateur, na emulisiferi mubiribwa bitunganijwe.PIB irashobora kandi gufasha kunoza imiterere no guhuza ibicuruzwa nka ice cream, guhekenya, nibicuruzwa bitetse.Ubwinshi bwa PIB bugira ikintu cyingenzi kubakora inganda zikora ibiryo.

PIB nayo ikoreshwa cyane mubikorwa byubuvuzi.Ibintu bidafite uburozi bituma biba byiza gukoreshwa mubuvuzi.Ibintu bikunze gukoreshwa nka stabilisateur mu nkingo, kimwe nibigize imiti myinshi.Imiterere ya hydrophobique ya PIB irayifasha kwizirika ku ruhu, ikagira akamaro mu gukora imiti ivura.

Ibiranga:Polyisobutylene ifite imiterere yimiti ya hydrocarubone yuzuye, kandi itsinda rya methyl ryuruhande rwuruhande ni ikwirakwizwa ryuzuye, ni polymer idasanzwe.Igiteranyo cyo guteranya hamwe nimiterere ya polyisobutylene biterwa nuburemere bwa molekile hamwe no gukwirakwiza uburemere bwa molekile.Iyo uburemere bwa molekuline buringaniye buringaniye bwa 70000 ~ 90000, polyisobutylene ihinduka kuva mumazi ihinduka igahinduka ikomeye.Mubisanzwe, ukurikije ubunini bwa molekuline yuburemere bwa polyisobutylene igabanijwemo ibice bikurikira: uburemere buke bwa molekile polyisobutylene (umubare ugereranije uburemere bwa molekile = 200-10000);Uburemere buringaniye bwa polyisobutylene (umubare ugereranije uburemere bwa molekile = 20000-45,000);Uburemere buke bwa polyisobutylene (umubare ugereranije uburemere bwa molekile = 75.000-600.000);Uburemere bukabije bwa polyisobutylene (umubare wuburemere buringaniye burenga 760000).

1. Ubukonje bw'ikirere

Kimwe mu bintu biranga polyisobutylene ni ikirere cyiza cyane.Bitewe no kuba hari amatsinda abiri asimbuwe na methyl, urunigi rwa molekile igenda gahoro kandi ubunini bwubusa ni buto.Ibi bivamo coefficient de diffuzione na gaze ya gaze.

2. Gukemura

Polyisobutylene irashonga muri hydrocarubone ya alifatique, hydrocarubone ya aromatiya, lisansi, naphthene, amavuta yubutare, hydrocarubone ya chlorine na monosulfide ya karubone.Igice kimwe gishonga muri alcool na foromaje nyinshi, cyangwa kubyimba muri alcool, ethers, monomers, ketone nandi mashanyarazi hamwe namavuta yinyamanswa nimboga, urugero rwo kubyimba rwiyongera hamwe no kwiyongera k'uburebure bwa karubone;Kutaboneka muri alcool yo hasi (nka methanol, Ethanol, inzoga ya isopropyl, Ethylene glycol na coethylene glycol), ketone (nka acetone, methyl etyl ketone) na acide acetike glacial.

3. Kurwanya imiti

Polyisobutylene irwanya aside na alkali.Nka ammonia, aside hydrochloric, 60% acide hydrofluoric, aside acetate yumuti wamazi, 85% acide fosifori, 40% hydroxide ya sodium, amazi yumunyu wuzuye, 800} aside sulfurike, 38% acide sulfurique + 14% isuri ya nitricike, Nyamara, ntishobora kurwanya isuri ya okiside ikomeye, okiside idakomeye (nka 60% potasiyumu permanganate), acide zimwe na zimwe zishyushye cyane (nka acide 373K acetike) na halogene (fluor, chlorine, ubutayu).

Gupakira: ingoma ya 180KG

Ububiko: Bika ahantu hakonje, uhumeka, humye hamwe no kurinda izuba mugihe cyo gutwara.

Mugusoza, PIB nikintu cyagaciro hamwe nibikorwa byinshi mubikorwa bitandukanye.Ibikoresho byiza cyane byo gufunga no gufatira hamwe, hamwe no gukemuka kwinshi kandi bihindagurika, bituma biba byiza mubisabwa kwisiga, kwita kubantu, ibiryo, n'inganda zubuvuzi.Nkumuntu utanga isoko rya PIB, twiyemeje guha abakiriya bacu ibicuruzwa na serivisi nziza cyane kugirango babone ibyo bakeneye mu nganda.