Polyisobutylene CAS 9003-27-4
Polyisobutylene (PIB, CAS 9003-27-4) ni polymer yuzuye iboneka binyuze mu gupima isobutylene monomer. Ntabwo ari uburozi, nta mpumuro, ihamye cyane, ntabwo ihumeka cyane, irinda ubushyuhe cyane, kandi imiterere yayo ihinduka kuva ku mazi afite viscous → semi-solid → rubber elastomer uko uburemere bwa molekile bwiyongera.
Irwanya cyane gusaza no kudahinduka kw'imiti
Kuzura k'uruhererekane rw'ibintu: birwanya ubushyuhe, ogisijeni, ozone, imirasire ya ultraviolet, aside, alkali n'umunyu, ntibishira cyangwa ngo bikomere igihe kirekire.
Ubushyuhe buhamye: bushobora gukoreshwa igihe kirekire hagati ya -50℃ na 150℃, bufite aho bugurumana cyane kandi bushobora gushya gake
Uruhushya rwo mu kirere rwinshi + ubushyuhe bwinshi + ubushobozi buke bwo kwinjira
Ubushobozi bukomeye cyane bwo guhumeka: ubushobozi bwiza bwo kwirinda amazi, gaze n'umwuka w'umwuka, buruta kure cyane irabu isanzwe
Ubwishingizi bwiza bw'amashanyarazi: ubushobozi bwo guhangana n'amashanyarazi bwinshi, igihombo gito cya dielectric, kibereye insinga/gufunga amashanyarazi
Ikorana neza kandi ridafite uburozi + rikwiranye cyane
Ingano y'ibiribwa ya FDA: ntabwo ari uburozi, ntabwo itera umujinya, ishobora gukoreshwa mu gukanjakanja, mu mavuta yo kwisiga, mu bikoresho by'imiti
Ishobora kuvangwa n'ibinyabutabire bya hydrocarbon/rubber/resin: byoroshye kuvanga no guhindura, binongera ubukana, ubworoherane n'ubudahangarwa bw'ikirere.
| Ikintu | Igisanzwe |
| Isura | Amazi asobanutse kandi afite imiterere y'amazi |
| Ibara, APHA | 40 |
| Uburemere bwihariye @ 15.6 Deg C | 0.88-0.89 |
| Viscosity@100 Deg C, cSt | 200-260 |
| Aho gukurura (COC), Deg C (Nto) | 190 |
| Mw (Impuzandengo y'umubare) | 900-1000 |
| Agaciro ko kugabanya ubukana (Ntarengwa), mg ya KOH/g | 0.02 |
| Ingano y'amazi (Max), ppm | 40 |
PIB ifite uburemere buke bwa molekile (Mw < 10.000, amazi afite viscous)
Amavuta yo kwisiga / inyongeramusaruro: gukurura, kurwanya ubwiza, kurwanya kwangirika, gufunga no gukumira amazi ava
Ibikoresho bifunga: kole ifata umuvuduko, rubber ya butyl yahinduwe, agakoresho gafunga amazi, agakoresho gafunga amadirishya y'imodoka
Ibikoresho byo kwisiga / ibikoresho by'ubwiza: amavuta yo kwisiga ku minwa / amavuta yo kwisiga ku minwa (atera ubushuhe nta mavuta), amavuta yo kwisiga (afunga ubushuhe maze agakora agapfukamunwa), asimbuza squalane
Ibiryo: gusya amenyo (kunoza uburyo bwo kuyahekenya, gukumira gufatana kw'amenyo)
2) Uburemere buringaniye bwa molekile PIB (Mw 10.000 - 100.000, agapira gakomeye / koroshye)
Guhindura rubber: acrylonitrile / chloroprene rubber plasticizer, byongera ubushobozi bwo kudakoresha amavuta no gufata umwuka mu buryo bufunze
Insinga / insinga: imvange y'ubushyuhe, icyuma kidapfa amazi, irangi ririnda ikirere
Irangi / asphalt: irangi rirwanya ingese, guhindura asphalt (irwanya guturika, irwanya gusaza)
3) PIB ifite uburemere bwinshi bwa molekile (Mw > 100.000, elastomer isa na rubber)
Rubber yihariye: ipine y'imbere idahumeka cyane, igice cyo gufunga imashini, gasket irwanya gusaza
Guhindura pulasitiki: Gukomeza PP/PE, kongera ubushobozi bwo kurwanya ingaruka no kurwanya ikirere
• Ipaki isanzwe: 25 kg/umufuka; 25 kg/ingoma
• MOQ: byemezwa n'urwego n'aho bigeze
• Igihe cyo kwishyura: byemezwa n'ingano y'ibicuruzwa n'ingengabihe y'umusaruro
• Kohereza: uburyo bwo mu mazi / mu kirere / bwo mu modoka zigenda gahoro burahari
• Bika ahantu hakonje, humutse, kandi hari umwuka mwiza.
• Bika ikintu gifunze neza kandi kirinzwe n'ubushuhe.
• Irinde izuba ryinshi, ubushyuhe n'umuriro ufunguye.
• Kurikiza amabwiriza ya SDS ku bikoresho bidahuye.
