Lesi sihloko sikhetha kakhulu i-MMA, i-BA, i-AA njenge-monomers, futhi sixoxa ngezinto ze-graft polymerization nazo, njengokulandelana kokwengeza, inani lokwengeza kanye nokushisa kokusabela kwe-initiator kanye ne-monomer ngayinye, futhi sithola izimo zenqubo ye-graft polymerization engcono kakhulu. Irabha iqala ihlanzwe, bese ivuselelwa futhi incibilikiswe nge-solvent exubile ku-70~80°C, bese i-initiator BPO ingezwa ngamaqoqo. I-monomer yokuqala i-MMA encibilikiswe ne-BOP ingezwa ku-80~90°C imizuzu engama-20, bese ingezwa ne-monomer yesibili ye-BPO, ngemva kweminye imizuzu engama-20, engeza i-monomer yesithathu ku-84~88 ℃ bese uvuselela imizuzu engama-45, ugcine ufudumele amahora ayi-1.5~2, bese uthola i-CR/MMA-BA-AA three-way graft polymerization adhesive, Amandla e-Peel makhulu kune-CR/MMA-BA, inani layo lingu-6.6 KN.m-1.
Amagama ayisihluthulelo: I-Neoprene adhesive, i-Shoe glue, i-Multi-component grafted neoprene adhesive.
I-ether ye-celluloseMCfuthiI-HPMCZine-performance enhle yokusabalala, i-emulsification, i-thickening, i-adhesion, ukwakheka kwefilimu, ukugcinwa kwamanzi, futhi zinokwakheka kwamanzi okuhle kakhulu, umsebenzi wobuso, ukuzinza, kanye nokuncibilika kwezinyibilikisi eziphilayo.
Imikhiqizo eyinhloko ekhiqizwayo njengamanje yizinhlobo ze-RT series MC kanye ne-HPMC, ezimaki azo angama-50RT (Methylcellulose), 60RT (Hydroxypropylmethylcellulose), 65RT (Hydroxypropylmethylcellulose), 75RT (Hydroxypropylmethylcellulose), ahambisana namaki e-DOW Chemical Company yiMethocel A, E, F kanye ne-K, ngokulandelana.
Imikhiqizo yochungechunge lwe-RT iyizithasiselo eziwusizo kakhulu ezintweni zokwakha ngenxa yokuhlangana kwazo, ukuqina kokumiswa kanye nokugcinwa kwamanzi. Isibonelo, zingakhiwa zibe “izinamathiseli zodonga lwe-ceramic kanye nethayela eliphansi” ezisezingeni eliphezulu, ezaziwa kakhulu ngokuthi i-rubber powder, ezisetshenziswe eBeijing West Railway Station, umphumela muhle. Ngaphezu kwalokho, ingasetshenziswa njenge-gelled electrolyte kuma-capacitor e-electrolytic kanye nama-bonded electrode grids ezintweni zikagesi, njenge-atropine, i-aminopyrine kanye nama-anal crystals emithi, kanye ne-thickener yama-emulsions amanzi kupende. Kupende we-latex kanye nopende oncibilikayo emanzini, ingasetshenziswa njenge-ejenti yokwakha ifilimu, i-thickener, i-emulsifier kanye ne-stabilizer, njll. yokunamathela kwephepha lodonga, i-rubber powder ephinda imanziswe ngamanzi, njll.
Amagama ayisihluthulelo: I-Methyl Cellulose, i-Hydroxy Propyl Cellulose, i-glue, ukusetshenziswa.
Ukuthuthukiswa kweglue yesandla yepulasitiki yephepha esuselwe emanzini
Eminyakeni yamuva nje, inqubo entsha yokunamathisela ifilimu yepulasitiki ezintweni eziphrintiwe iye yathuthukiswa. Iyi-BOPP (ifilimu ye-polypropylene eqondiswe kabili) eboshwe nge-adhesive bese ihlanganiswa nezinto eziphrintiwe ngemva kokucindezelwa yi-cylinder yerabha kanye ne-heating roller ukuze kwakhiwe iphepha. / Iphrinta yepulasitiki engu-3-in-1. Lokhu kuhilela inkinga yokubopha iphepha kanye nepulasitiki. I-BOPP iyinto engeyona i-polar, ngakho-ke, kunesidingo se-adhesive enamathela kahle kokubili ezintweni ezi-polar kanye nezingeyona i-polar.
Ukuxuba inhlaka ye-SBS ne-epoxy resin kuhambisana kahle. I-SBS iyi-viscose ye-elastomer. Kungabonakala kusukela egodini layo lokuhluleka ukuthi ukuze kuthuthukiswe amandla okubhubhisa e-viscose okunamathelayo, kufanele kulawulwe eduze kwe-SBS: i-epoxy resin = 2:1. Kusukela egodini lamandla e-peel, kungabonakala ukuthi lapho isilinganiso siphezulu, amandla e-peel azoba makhulu, kodwa ukunamathela kuzokwanda. Ukuze kugwenywe ukunamathela, i-SBS: i-epoxy resin = 1:1~2.5:1 ingalawulwa ukuze kutholakale amandla e-peel akhuphuka kancane. Uma ucabangela ngokuphelele, nquma i-SBS ku-glue eyinhloko: i-epoxy resin = 1:1~3.5:1.
Umsebenzi oyinhloko wokusebenzisa i-resin yokunamathisela ukwandisa amandla okubopha kwe-matrix nokuthuthukisa ukumanzisa kweglue kanye nobuso bokubopha. I-resin yokunamathisela esetshenziswe kulolu cwaningo iyi-rosin tackifier eyakhiwe yi-rosin evamile kanye ne-dimerized rosin ngezilinganiso ezahlukene. Ngokusebenzisa izivivinyo eziningi, kuphethwa ngokuthi iphesenti le-dimerized rosin ku-tackifier lingu-22.5%, kanti amandla okuxebuka kweglue elungiselelwe ngokwalesi silinganiso angu-1.59N/25mm (iphepha-ipulasitiki).
Inani le-tackifier linethonya elithile ezimpahleni zokunamathela. Umphumela omuhle kakhulu ulapho isilinganiso se-glue eyinhloko kanye ne-tackifier singu-1:1. Amandla okuhluba i-N/mm ipulasitiki-ipulasitiki 1.4, iphepha-ipulasitiki 1.6.
Kulolu cwaningo, i-MMA isetshenziswe njengesihlanzi ukuhlanganisa i-SBS ne-MMA. Ukuhlolwa kuthole ukuthi ukusetshenziswa kwe-MMA akugcini nje ngokufeza injongo yokuxova izingxenye eziku-colloid, kodwa futhi kunciphisa i-viscosity futhi kuthuthukise amandla okunamathela. Ngakho-ke, i-MMA iyihlanzi eguquliwe efanelekile. Ngemva kokuhlolwa, inani le-MMA elisetshenzisiwe liyinani eliphelele leglue elingu-5% ~ 10% elifanele.
Njengoba i-viscose eklanyiwe kufanele incibilike emanzini, sikhetha i-latex emhlophe (i-polyvinyl acetate emulsion) njengesithwali esincibilika emanzini. Inani le-latex emhlophe libalelwa ku-60% we-viscose iyonke. Ngemva kokuba i-viscose esekelwe emanzini ixutshwe ibe yisimo se-emulsion yamanzi ngokusabalala kanye ne-emulsification yesithwali esixutshwe ngamanzi, uma ukuqina kwayo okuxutshwe kungafanele ukusetshenziswa, ingaxutshwa ngamanzi. Le ndlela yokuxuba ishibhile futhi ayinabo ubuthi (asikho isidingo sokusebenzisa izinyibilikisi eziphilayo), futhi uhla oluhle kakhulu lwamanzi okuxuba luyi-10% ~ 20%.
Ukuze kususwe insalela ye-viscose, kuhlolwa ukuthi isisombululo se-Na2CO3 esincibilikisiwe sisetshenziswa njenge-alkalizing agent, futhi umphumela ungcono kakhulu. Inkolelo-mbono yomphumela we-alkalizing agent ingaba ukuthi ukusabela kwe-saponification kwethula amanye ama-ion aqinile e-polar, njenge-sodium ion, ukuze i-rosin acid yokuqala enganyibiliki iguqulwe ibe usawoti we-sodium oncibilikayo. Ngaphezu kwalokho, uma isisekelo esinamandla kakhulu sengezwa ku-glue, amandla okunamathela azolahleka, ukuze i-glue ihluleke, ngakho-ke i-glue ayifanele indawo ye-alkaline.
Ukugeleza kwenqubo efanele.
Isikhathi sokuthunyelwe: Ephreli-25-2024