Iyi nkuru ihitamo cyane cyane MMA, BA, AA nk'ibishushanyo mbonera, kandi ikaganira ku bintu bigize polimeri ya graft, nk'uburyo bwo kongeramo, ingano y'inyongera n'ubushyuhe bw'imashini itangira na buri monomer, kandi ikamenya imiterere myiza y'uburyo bwo gupima polimeri ya graft. Rubber ibanza gukangwa, hanyuma ikavunga ikanashongeshwa n'umushongi uvanze kuri 70 ~ 80 ° C, hanyuma BPO yongerwamo mu byiciro. Monomer ya mbere MMA ishongeshwa na BOP yongerwaho kuri 80 ~ 90 ° C mu minota 20, hanyuma yongerwaho na monomer ya kabiri ya BPO, nyuma y'indi minota 20, ongeramo monomer ya gatatu kuri 84 ~ 88 ℃ hanyuma uvange mu minota 45, ubibike mu gihe cy'amasaha 1.5 ~ 2, hanyuma ubone kole ya CR / MMA-BA-AA ifite inzira eshatu zo gupima polimeri ya graft, imbaraga zo gukata ziruta CR / MMA-BA, agaciro kayo ni 6.6 KN.m-1.
Amagambo y'ingenzi: Kole ya Neoprene, Kole y'inkweto, Kole ya Neoprene yashyizwemo ibice byinshi.
Eteri ya selulosiMCnaHPMCifite ubushobozi bwo gukwirakwiza neza, ivangavanze, irushaho gukomera, ifatana, ikora neza, ifata amazi, kandi ifite ubushobozi bwo gushonga neza mu mazi, imikorere y’ubuso, ihamye, kandi ishonga neza mu bintu bishongesha ibintu by’umwimerere.
Ibicuruzwa by'ingenzi bikorerwa ubu ni ubwoko bwa RT series MC na HPMC, aho amanota yabyo ari 50RT (Methylcellulose), 60RT (Hydroxypropylmethylcellulose), 65RT (Hydroxypropylmethylcellulose), 75RT (Hydroxypropylmethylcellulose), bihuye n'amanota ya DOW Chemical Company ni Methocel A, E, F na K, uko bikurikirana.
Ibikoresho bya RT ni inyongeramusaruro z'ingirakamaro cyane mu bikoresho by'ubwubatsi kubera ko bifatanye, bihamye kandi bigumana amazi. Urugero, bishobora gukorwamo "koleti zo ku rukuta n'iz'amatafari yo hasi" nziza cyane, izwi cyane nka ifu ya rubber, zakoreshejwe muri sitasiyo ya gari ya moshi ya Beijing West, ingaruka ni nziza. Byongeye kandi, ishobora gukoreshwa nk'umusemburo wa electrolyte muri capacitors za electrolytic na electrode grids zifatanye mu bikoresho by'amashanyarazi, nka atropine, aminopyrine na crystals zo mu kibuno mu miti, ndetse no nk'umusemburo w'amazi mu marangi. Mu marangi ya latex n'irangi rishongera amazi, ishobora gukoreshwa nk'ikintu gitanga filime, umusemburo, umusemburo n'umusemburo, nibindi. mu gufatana kw'urukuta, ifu ya rubber yongera kunywera amazi, nibindi.
Amagambo y'ingenzi: Methyl Cellulose, Hydroxy Propyl Cellulose, kole, ikoreshwa.
Guteza imbere kole y'intoki ikozwe mu mpapuro zikozwe mu mazi
Mu myaka ya vuba aha, habayeho uburyo bushya bwo gushyira filime ya pulasitiki ku bintu byacapwe. Ni BOPP (filime ya polipropylene ishingiye ku bice bibiri) isizweho kole hanyuma igahuzwa n'ibintu byacapwe nyuma yo gukandagirwa na silindiri ya rubber na roller ishyushya kugira ngo hakorwe impapuro. / Icapiro rya pulasitiki rya 3-in-1. Ibi birimo ikibazo cyo guhuza impapuro na pulasitiki. BOPP ni ibikoresho bitari polari, bityo rero, hakenewe kole ifite gufatana neza n'ibintu biri polari n'ibitari polari.
Kuvanga kole ya SBS na epoxy resin bifite uburyo bwo guhuza neza. SBS ni viscose ya elastomer. Bigaragara ku murongo wayo wo gutsindwa ko kugira ngo irusheho gukoresha imbaraga za viscose zisenya kole, igomba kugenzurwa hafi ya SBS: epoxy resin = 2:1. Ukurikije umurongo w'imbaraga z'igishishwa, bigaragara ko iyo igipimo kiri hejuru, imbaraga z'igishishwa zizaba nyinshi, ariko kandi ziyongera. Kugira ngo hirindwe gufatana, SBS: epoxy resin = 1:1~2.5:1 ishobora kugenzurwa kugira ngo ibone imbaraga z'igishishwa zizamuka buhoro buhoro. Urebye neza, menya SBS muri kole nyamukuru: epoxy resin = 1:1~3.5:1.
Akamaro nyamukuru ko gukoresha resin ifatana ni ukongera imbaraga zo gufatana za matrix no kunoza ubushobozi bwo kole n'ubuso bwo gufatana. Resin ifatana yakoreshejwe muri ubu bushakashatsi ni rosin ifatana igizwe na rosine isanzwe na rosine ifatana mu buryo butandukanye. Binyuze mu bizamini byinshi, byagaragaye ko igipimo cya rosine ifatana mu gukatana ari 22.5%, kandi imbaraga zo gukata za kole yateguwe hakurikijwe iki gipimo ni 1.59N/25mm (impapuro-plastiki).
Ingano ya tackifier igira ingaruka ku miterere ya kole. Ingaruka nziza ni iyo igipimo cya kole nyamukuru n'itackifier ari 1: 1. Ingufu zo gukata N/mm pulasitiki-plastiki 1.4, impapuro-plastiki 1.6.
Muri ubu bushakashatsi, MMA yakoreshejwe nk'umusemburo wo kuvanga SBS na MMA. Ubushakashatsi bwagaragaje ko ikoreshwa rya MMA ridashobora kugera ku ntego yo gukaranga ibice biri muri koloyide gusa, ahubwo rinagabanya ubukana no kunoza imbaraga zo gufata. Kubwibyo, MMA ni umusemburo ukwiye wahinduwe. Nyuma y'igerageza, ingano ya MMA ikoreshwa ni kole yose hamwe 5% ~ 10% ikwiye.
Kubera ko viscose yakozwe igomba gushonga mu mazi, duhitamo latex yera (polyvinyl acetate emulsion) nk'iy'amazi ashonga mu mazi. Ingano ya latex yera ingana na 60% by'amazi yose. Nyuma y'uko viscose ishingiye ku mazi ivanzwe mu mazi ihinduka amazi binyuze mu gukwirakwira no gushonga kw'amazi aturuka mu mazi, niba imiterere yayo idahuye neza idakwiye gukoreshwa, ishobora gushonga n'amazi. Ubu buryo bwo gushonga buhendutse kandi ntibugira uburozi (nta mpamvu yo gukoresha imiti ihumanya ikirere), kandi urwego rwiza rw'amazi aturuka mu mazi ni 10% ~ 20%.
Kugira ngo haveho ibisigazwa bya viscose, byagenzuwe ko umuti wa Na2CO3 ukoreshwa nk'ikintu gitera alkalizing, kandi ingaruka ni nziza kurushaho. Inyigisho y'ingaruka z'ikintu gitera alkalizing ishobora kuba ari uko uburyo bwo gushyiramo saponification butera ions zikomeye za polar, nka ions za sodium, bityo aside rosin idashobora gushonga yambere igahinduka umunyu wa sodium ushonga. Byongeye kandi, iyo hongeweho ishingiro rikomeye cyane kuri kole, imbaraga za kole ziratakara, bityo kole irananirwa, bityo kole ntibe nziza ku bidukikije bya alkaline.
Urugendo rw'ibikorwa rukwiye.
Igihe cyo kohereza: 25 Mata 2024