Polyisobutylene (PIB)

Polyisobutylene (PIB)ni ikintu kitagira ibara, kidasembuye, kidasembuye cyangwa gifite ubukana buto, kirwanya ubushyuhe, kirwanya ogisijeni, kirwanya ozone, kirwanya ikirere, kirwanya ultraviolet, kirwanya aside na alkali n'ibindi binyabutabire imikorere myiza. Polyisobutylene ni isobutylene homopolymer itagira ibara, idafite impumuro, kandi idasembuye. Bitewe n'uburyo butandukanye bwo kuyitegura n'imiterere y'ikoranabuhanga, ingano ya molekile ya polyisobutylene iratandukanye mu buryo bwinshi. Uburemere bwinshi bwa molekile bw'ibicuruzwa bugera ku bipimo birenga 10.000 kugeza 200.000 buzahindurwa kuva ku mazi menshi bugahinduka igice gikomeye, hanyuma bugahinduka elastomer isa na rubber. Polyisobutylene irwanya aside, alkali, umunyu, amazi, ozone no gusaza, kandi ifite umwuka mwiza wo gufunga no gukingira amashanyarazi.

Imiterere y'ibinyabutabire:Ifite ibara ridafite umuhondo woroshye cyangwa semisol yoroshye (uburemere buke bwa molekile ni gelatin yoroshye, uburemere bwinshi bwa molekile ni ductile kandi irashya). Impumuro yose nta mpumuro, nta mpumuro cyangwa impumuro nke. Uburemere bwa molekile ni miliyoni 200.000 ~ 87. Ishongeshwa muri benzene na diisobutyl Chemicalbook, ishobora kuvangwa na polyvinyl acetate, wax, nibindi, ntishonge mu mazi, alcool nibindi bishongeshwa. Ishobora gutuma isukari y'ingurube igira ubworoherane bwiza ku bushyuhe buke, kandi ifite plasticity runaka ku bushyuhe bwinshi kugira ngo itunganye inenge za polyvinyl acetate iyo hari ubukonje, ubushyuhe no koroshya cyane iyo ihuye n'ubushyuhe bwo mu kanwa.

Porogaramu:PIB izwiho ubushobozi bwayo bwo gufunga no gufata neza, akenshi ikoreshwa mu gufunga, gusiga, no gufunga. Imiterere ya PIB isa n'iya karuboni ituma iba amahitamo meza yo gufunga no gufata neza, kuko ifasha gutanga isano ikomeye kandi irambye mu buryo butandukanye. Uretse ikoreshwa ryayo mu buryo bufatika, PIB ikunze gukoreshwa mu kwisiga no mu bikoresho byo kwiyitaho bitewe n'ubushobozi bwayo bwiza bwo gushonga. Iyi fatizo ikunze guhuzwa n'ibindi bintu kugira ngo hakorwe ibicuruzwa bifite imiterere n'ibyiyumvo byihariye.

PIB ifite uburyo bwinshi bwo kuyikoresha mu nganda z'ibiribwa. Iyi poroteyine ikunze gukoreshwa nk'inyunganiramirire, ikungahaye ku biryo bitunganywa. PIB ishobora kandi gufasha kunoza imiterere n'uburyo ibintu nka ice cream, chewing gum, n'ibiryo bitetse mu ifu. Uburyo PIB ikoresha mu buryo butandukanye butuma iba ikintu cy'ingenzi ku nganda zikora ibiribwa.

PIB ikoreshwa cyane mu nganda z'ubuvuzi. Imiterere idahumanya y'iyi mashini ituma iba nziza mu buvuzi. Iyi mashini ikunze gukoreshwa nk'ikintu gikomeza ubukana mu nkingo, ndetse n'ikintu kigize imiti myinshi. Kuba PIB idakunda amazi biyifasha gufatana n'uruhu, bigatuma igira akamaro mu gukora kole zo kwa muganga.

Ibiranga:Polyisobutylene ifite imiterere ya shimi y’ibinyabutabire byuzuye bya hydrocarbon, kandi itsinda rya methyl ry’uruhererekane rw’uruhande rikwirakwira neza, rikaba ari polymeri yihariye. Imiterere yo guteranya n’imiterere ya polyisobutylene biterwa n’uburemere bwayo bwa molekile n’uburyo ikwirakwiramo. Iyo uburemere bw’impuzandengo ya molekile buri hagati ya 70000 ~ 90000, polyisobutylene ihinduka kuva ku mazi ahinduka ikaba ikintu gikomeye. Muri rusange, hakurikijwe ingano y’uburemere bwa molekile ya polyisobutylene igabanyijemo uruhererekane rukurikira: polyisobutylene ifite uburemere buke bwa molekile (umubare w’uburemere bw’impuzandengo ya molekile = 200-10000); polyisobutylene ifite uburemere buke bwa molekile (umubare w’uburemere bw’impuzandengo ya molekile = 200-10000); polyisobutylene ifite uburemere buke bwa molekile = 20000-45,000); polyisobutylene ifite uburemere buke bwa molekile (umubare w’uburemere bw’impuzandengo ya molekile = 75,000-600,000); polyisobutylene ifite uburemere bwa molekile bwinshi cyane (umubare w’uburemere bw’impuzandengo ya molekile burenga 760000).

1. Gufata neza umwuka

Kimwe mu biranga polyisobutylene ni uburyo ifata umwuka neza cyane. Bitewe n'uko hari amatsinda abiri ya methyl yasimbuwe, uruhererekane rw'imitsi rugenda buhoro kandi ingano y'umwuka iba nto. Ibi bituma habaho ingano ntoya y'umwuka ukwirakwira mu kirere ndetse n'ingufu zinjira mu kirere.

2. Gushonga

Polyisobutylene ishongeshwa muri aliphatic hydrocarbon, aromatic hydrocarbon, lisansi, naphthene, amavuta ya mineral, chlorine hydrocarbon na carbon monosulfide. Iyo ishongeshejwe igice muri alcohol nyinshi na foromaje, cyangwa ikagira alcohol nyinshi, ether, monomer, ketones n'ibindi bintu bishongeshwa hamwe n'amavuta y'inyamaswa n'ibimera, urwego rwo kubyimba ruriyongera uko uburebure bw'uruhererekane rwa karuboni buzamuka; Iyo ishongeshwa muri alcohol nke (nka methanol, ethanol, isopropyl alcohol, ethylene glycol na coethylene glycol), ketones (nka acetone, methyl ethyl ketone) na aside glacial acetic.

3. Ubudahangarwa bw'imiti

Polyisobutylene irwanya aside na alkali. Nka ammonia, aside hidrokloriki, aside hydrofluoric 60%, umuti w'amazi wa acetate y'icyitegererezo, aside phosphoric 85%, hydroxide ya sodium 40%, amazi yuzuye umunyu, aside sulfuriki 800}, aside sulfuriki 38% +14% isuri ya aside nitrike, Ariko, ntishobora kurwanya isuri ya oxydants zikomeye, oxydants zishyushye nke (nka 60% potasiyumu permanganate), aside organic zimwe na zimwe zishyushye cyane (nka 373K aside acetic) na halogens (fluorine, chlorine, desert).

Ipakiye: 180KG ingoma

Kubika: Bika ahantu hakonje, hahumeka umwuka kandi humutse kandi hakirindwa n'izuba mu gihe cyo kubitwara.

Mu gusoza, PIB ni ikintu cy'agaciro gifite akamaro gakomeye kandi gikoreshwa mu nganda zitandukanye. Imiterere yacyo myiza yo gufunga no gufata neza, ndetse no gushonga no gukoresha ibintu bitandukanye, bituma kiba cyiza cyane mu nganda zikora amavuta yo kwisiga, ubuvuzi, ibiribwa n'ubuvuzi. Nk'umucuruzi ukomeye wa PIB, twiyemeje guha abakiriya bacu ibicuruzwa na serivisi byiza cyane kugira ngo bihuze n'ibyo bakeneye mu nganda zabo.