isiguquli sobunzima bemolekyuli
Amagama afanayo kwisiNgesi
isiguquli sobunzima bemolekyuli
ipropati yeekhemikhali
Ineentlobo ezininzi, kuquka ii-aliphatic thiols, i-xanthate disulfide, ii-polyphenols, i-sulfur, ii-halides kunye nee-nitroso compounds, kwaye isetyenziswa kakhulu kwi-free radical polymerization reactions.
Intshayelelo yemveliso kunye neempawu zayo
Umlawuli wobunzima beMolekyuli ubhekisa ekongezweni kwezinto ezincinci ezine-chain transfer constant enkulu kwinkqubo ye-polymerization. Ngenxa yokuba amandla okudlulisa i-chain anamandla kakhulu, kuphela inani elincinci lokongeza linokunciphisa kakhulu ubunzima be-molekyuli, kodwa kwakhona ngokulungelelanisa idosi ukulawula ubunzima be-molekyuli, ngoko ke olu hlobo lwe-chain transfer agent lukwabizwa ngokuba yi-molecular weight regulator. Umzekelo, ii-dodecyl thiols zihlala zisetyenziswa njenge-molecular weight regulators kwimveliso ye-acrylic fiber. Umlawuli wobunzima be-molekyuli ubhekisa kwisixhobo esinokulawula ubunzima be-molekyuli ye-polymer kwaye sinciphise i-chain branching ye-polymer. Uphawu lwayo kukuba i-chain transfer constant inkulu kakhulu, ngoko ke inani elincinci linokunciphisa ngempumelelo ubunzima be-molekyuli ye-polymer, nto leyo enceda emva kokucutshungulwa nokusetyenziswa kwe-polymer. Umlawuli omfutshane, okwaziwa ngokuba yi-polymerization regulator
sebenzisa
Kwi-polymerization ye-emulsion yerabha yokwenziwa, ngokuqhelekileyo kusetyenziswa ii-aliphatic thiols (ezifana ne-dodecarbothiol,CH3 (CH2) 11SH) kunye ne-disulphide diisopropyl xanthogenate (oko kukuthi, i-regulator butyl)C8H14O2S4, ingakumbi ii-aliphatic thiols, kwaye kukhawuleziswe ukusabela; Kwi-polymerization ye-olefin coordination, i-hydrogen isetyenziswa njengomlawuli wobunzima be-molecular.
iphakheji kunye nothutho
B. Le mveliso ingasetyenziswa, 25KG, 200KG, 1000KG, ibharele.
C. Gcina ivalwe kwindawo epholileyo, eyomileyo nengena umoya ngaphakathi. Izikhongozeli mazivalwe kakuhle emva kokusetyenziswa ngakunye ngaphambi kokusetyenziswa.
D. Le mveliso kufuneka ivalwe kakuhle ngexesha lokuthuthwa ukuze kuthintelwe ukufuma, i-alkali enamandla kunye ne-asidi, imvula kunye nezinye izinto ezingcolileyo ukuba zingaxubeki.
