Polyisobutylene CAS 9003-27-4
Polyisobutylene (PIB, CAS 9003-27-4) ke polymer e teteaneng e fumanweng ka polymerization ya cationic ya monomer ya isobutylene. Ha e na chefo, ha e na monko, e tsitsitse haholo, ha e kene moya haholo, e thibela mocheso haholo, mme sebopeho sa yona se fetoha ho tloha mokelikeling o tiileng → o tiileng hanyane → rabara elastomer ha boima ba dimolek'hule bo ntse bo eketseha.
E hanela botsofali haholo le botsitso ba lik'hemik'hale
Ho tlala ha ketane e felletseng: e hanela mocheso, oksijene, ozone, mahlaseli a ultraviolet, li-acid, alkali le letsoai, ha e senyehe kapa ho taboha ka nako e telele.
Ho tsitsa ha mocheso: e ka sebelisoa nako e telele ho tloha ho -50℃ ho isa ho 150℃, e nang le ntlha e phahameng ea flash le ho cha ho tlase
Ho se kene moya ho hoholo + ho thibela mocheso ho hoholo + ho kenella ha moea ho tlase
Ho se kene moea ho matla haholo: thepa e ntle ea thibelo khahlanong le metsi, khase le mouoane, e phahametse haholo rabara e tloaelehileng
Ho thibela motlakase hantle: ho hanyetsa ka bongata bo phahameng, tahlehelo e tlase ea dielectric, e loketseng ho koaloa ha likhoele/motlakase
Ho lumellana ho bolokehileng le ho se nang chefo + ho pharaletseng
Sehlopha sa lijo sa FDA: ha se chefo, ha se halefise, se ka sebelisoa ho hlafuna chewing gum, litlolo, metsoako ea meriana
E kopana le li-hydrocarbon/rabara/resin: e bonolo ho e kopanya le ho e fetola, e ntlafatsa ho teteana, ho tenyetseha le ho hanyetsa boemo ba leholimo.
| Ntho | E tloaelehileng |
| Ponahalo | Mokelikeli o hlakileng, o tiileng |
| 'Mala, APHA | 40 |
| Matla a khoheli a itseng @15.6 Deg C | 0.88-0.89 |
| Viscosity@100 Deg C, cSt | 200-260 |
| Ntlha ea Flash(COC), Deg C(Min) | 190 |
| Mw(Palo e tloaelehileng) | 900-1000 |
| Boleng ba ho se nke lehlakore (Max), mg ea KOH/g | 0.02 |
| Metsi a mangata (Max), ppm | 40 |
Boima bo tlase ba limolek'hule PIB (Mw < 10,000, mokelikeli o tiileng)
Litlolo / lintho tse eketsang mafura: ho teteana, ho thibela ho fifala ha mafura, ho thibela ho tsofala, ho tiisa le ho thibela ho dutla ha metsi
Likhomaretsi / li-sealant: sekhomaretsi se utloang khatello, rabara ea butyl e fetotsoeng, sealant e sa keneleng metsi, sealant ea lifensetere tsa koloi
Litlolo / lihlahisoa tsa botle: lipstick / setlolo sa molomo (se nolofatsang ntle le mafura), tranelate (e nolofatsang mongobo le ho etsa filimi), e nkang sebaka sa squalane
Lijo: motheo oa chewing chewing (ho ntlafatsa ho hlafuna, ho thibela ho khomarela ha meno)
2) Boima bo mahareng ba limolek'hule PIB (Mw 10,000 - 100,000, rabara e tiileng hanyane / e bonolo)
Phetoho ea rabara: plasticizer ea rabara ea acrylonitrile / chloroprene, e eketsang ho hanyetsa oli le ho tiea ha moea
Likhoele / lithapo: ho kenngoa ha insulation, sheath e sa keneleng metsi, lesira le hanelang boemo ba leholimo
Liaparo / asphalt: pente e thibelang mafome, phetoho ea asphalt (e thibelang ho petsoha, e thibelang botsofali)
3) Boima bo phahameng ba limolek'hule PIB (Mw > 100,000, elastomer e kang rabara)
Rabara e khethehileng: thaere e ka hare e sa keneleng moea haholo, karolo ea ho tiisa ka vacuum, gasket e thibelang botsofali
Phetoho ea polasetiki: Matlafatso ea PP/PE, ho eketsa khanyetso ea tšusumetso le khanyetso ea boemo ba leholimo
• Sephutheloana se Tloaelehileng: 25 kg/mokotla; 25 kg/moropa
• MOQ: e tla netefatsoa ka sehlopha le moo e eang teng
• Nako ea ho etella pele: e tla tiisoa ke bongata ba odara le kemiso ea tlhahiso
• Thomello: dikgetho tsa lewatle / tsa moya / tsa potlako di a fumaneha
• Boloka sebakeng se pholileng, se omileng, le se nang le moea o kenang hantle.
• Boloka setshelo se koetsoe hantle 'me se sirelelitsoe mongobong.
• Qoba khanya ea letsatsi e tobileng, mocheso le malakabe a bulehileng.
• Latela tataiso ea SDS bakeng sa thepa e sa lumellaneng.
