I-Styrene-butadiene (SB) i-latex luhlobo oluqhelekileyo lwe-emulsion polymer esetyenziswe kwinani leemveliso kunye nezorhwebo.Kuba yenziwe ziindidi ezimbini ezahlukeneyo zemonomers, i-styrene kunye ne-butadiene, iSB latex ihlelwa njengecopolymer.I-styrene ivela kwi-benzene kunye ne-ethylene esabelayo, kwaye i-butadiene yimveliso yemveliso ye-ethylene.
I-Styrene-butadiene latex ihluke kuzo zombini ii-monomers zayo kunye ne-latex yendalo, eyenziwe kwincindi yemithi ye-Hevea brasiliensis (imithi yerabha).Ikwahluke kwenye i-compound eyenziwe, i-styrene-butadiene irabha (i-SBR), eyabelana ngegama elifanayo kodwa inikezela ngesethi eyahlukileyo yeempawu.
Ukwenziwa kweStyrene-Butadiene Latex
I-Styrene-butadiene latex yenziwa ngenkqubo ye-polymer emulsion.Oku kubandakanya ukongeza ii-monomers emanzini kunye nee-surfactants, abaqalisi, ii-carboxylic acids kunye nee-monomers ezizodwa.Abaqalisi baqalisa i-chain-reaction polymerization edibanisa i-styrene monomer kwi-butadiene monoma.I-Butadiene ngokwayo yimanyano yamaqela amabini e-vinyl, ngoko iyakwazi ukusabela kunye nezinye iiyunithi ezine ze-monomer.Ngenxa yoko, inokwandisa ukukhula kwekhonkco lepolymer kodwa iyakwazi nokudibanisa ikhonkco lepolymer kwelinye.Oku kubizwa ngokuba yi-crosslinking, kwaye kubaluleke kakhulu kwi-styrene-butadiene chemistry.Indawo edityanisiweyo yepolymer ayinyibiliki kwizinyibilikisi ezifanelekileyo kodwa iyadumba ukuze yenze imatrix efana nejeli.Uninzi lweepolymers ze-styrene-butadiene zorhwebo zixutywe kakhulu, ngoko zinomxholo ophezulu we-gel, ipropati ebalulekileyo enefuthe elinamandla ekusebenzeni kwe-latex, evumela ukuqina, amandla kunye nokuqina kunezinye izinto.Okulandelayo, siza kuphonononga ukuba ezi zakhiwo zinokusetyenziswa njani ngokukuko kumashishini amaninzi nakwizicelo.
Usetyenziso lwezoRhwebo
I-Styrene-butadiene latex inikezela ngenani leenzuzo, kubandakanywa ukwamkelwa kokugcwalisa kunye ne-tensile / elongation balance.Ukuguquguquka kwe-copolymer kuvumela inani elisondeleyo elingenasiphelo lemixube ebangela ukuxhathisa kwamanzi kunye nokunamathela kwi-substrates enzima.Ezi mpawu zeSB latex zenza oku kusenziwa kubaluleke kakhulu kwiqela elihlala lisanda lemarike.I-SB latex formulations isetyenziswa ngokuqhelekileyo njengengubo kwiimveliso zephepha, ezinjengamaphephancwadi, iiflaya kunye neekhathalogu, ukuphumeza i-gloss ephezulu, ukuprintwa kakuhle, kunye nokuchasana neoli kunye namanzi.I-SB latex yongeza amandla okubopha i-pigment kwaye, ngokulandelayo, yenza iphepha ligude, liqine, liqaqambe kwaye likwazi ukumelana namanzi.Njengebhonasi eyongeziweyo, iSB latex inexabiso eliphantsi kakhulu kunezinye iindlela zokugquma.I-SB latex lukhetho oludumileyo lokuncamathelisa kumashishini athile afana nomgangatho.Ngokomzekelo, i-polymer ifumaneka njengengubo yangasemva yeengubo ezilukiweyo ezifana neekhaphethi ezine-tufted.Ukugquma ngasemva kunika ukuxhathisa kwamanzi kwaye kubambe i-tufts endaweni, ephucula ukuzinza kunye nokunciphisa i-fraying emphethweni.Ezi zezinye zokusetyenziswa kwe-latex ye-styrene-butadiene.Ngokwenyani, ibonelela ngamathuba angenasiphelo, njengoko kungqinwa kukusebenza kwayo kwiindlela zokubaleka, iingubo zokwaleka, izinto ezincamathelayo ezinoxinzelelo, kunye namalaphu angalukwanga.I-Styrene butadiene polymer emulsions nayo iyinxalenye ephambili kwiimbrane ezifakwe kulwelo, kunye neengubo ezisezantsi ze-MVTR zokupakisha ukutya.
Ixesha lokuposa: Aug-10-2022