Phofo ea aluminium hydroxide e ntle haholo e na le mesebetsi e mengata e kang ho thibela malakabe, ho tlosa mosi le ho tlatsa, 'me e ka hlahisa phello e kopanetsoeng ea ho thibela malakabe ka phosphorus le lintho tse ling. Ke tšireletso ea bohlokoa tikolohong ea ho thibela malakabe indastering ea elektroniki, lik'hemik'hale, cable, polasetiki, rabara le liindasteri tse ling.
Aluminium hydroxide ke mofuta oa ho tlatsa o thibelang malakabe o sa tloaelehang, e le ho fihlela phello e betere ea ho thibela malakabe, palo ea ho tlatsa e hloka ho feta 40% (kakaretso), tse ling li bile li le holimo ho 60%, empa palo e phahameng ea ho tlatsa ha e ame feela thepa ea mechini ea lihlahisoa ka botebo, empa hape e etsa hore ts'ebetso ea ho ntša le ho sebetsana le eona e be mpe le ho feta.
Ka hona, e le ho etsa hore phofo ea aluminium hydroxide e be ntle haholo e ka sebelisoa haholo linthong tse thibelang malakabe tse kang polyolefin, e tlameha ho fetoloa holim'a aluminium hydroxide, e le ho ntlafatsa thepa ea 'mele le ea lik'hemik'hale holim'a eona, ho ntlafatsa phofo le substrate ea aluminium hydroxide e ntle haholo, ho lumellana ha polymer kapa resin ea organic le ho hasana ha substrate ea organic, e le ho ntlafatsa matla a mechini a thepa le ts'ebetso e felletseng.
1. Sesebediswa sa ho fetola bokaholimo se sebediswang haholo bakeng sa hydroxide ya aluminium e ntle haholo
(1) moemeli oa ho kopanya silane
Ho na le mefuta e fetang lekholo ea li-sylane coupling agents, tseo har'a tsona li-sylane coupling agent tsa sehlopha sa monolayer – functional silane coupling agent ke tsona tse tsitsitseng ka ho fetisisa. Botsitso ba li-sylane coupling agent tsa sehlopha sa -functional silane coupling agent bo pakeng tsa tšepe le tšepe. Ntle le ho ntlafatsa litšobotsi tsa mechini tsa lihlahisoa, li-sylane coupling agent tsa sehlopha sa -functional silane coupling agent li ka boela tsa ntlafatsa litšobotsi tsa motlakase le khanyetso ea mongobo ea lihlahisoa.
(2) moemeli oa ho kopanya oa zirconium
Sehlopha sa ho kopanya sa zirconium se nang le zirconium aluminate se na le boima bo tlase ba limolek'hule tsa polymer e sa tloaelehang ka har'a ketane e kholo ea molek'hule holim'a ho rarahana ha mefuta e 'meli ea li-subunit tsa ligand tsa organic, dentate e nang le moemeli oa ho kopanya e nang le botsitso bo botle ba hydroxyl, dentate e 'ngoe ho moemeli oa ho kopanya e nang le liketso tse ntle tsa organic, aluminium hydroxide superfine aluminium hydroxide phofo e na le litlamorao tse ntle tse fetotsoeng.
(3) mafura a mangata le letsoai la 'ona
Sebopehong sa limolek'hule tsa mafura a mangata a acid le matswai a tsona, pheletso e 'ngoe ke sehlopha sa alkyl sa ketane e telele, 'me pheletso e 'ngoe ke sehlopha sa carboxyl le letsoai la eona la tšepe le ka arabelang le lihlopha tse sebetsang tsa aluminium hydroxide. Ho phekola phofo ea aluminium hydroxide ea ultrafine ka asiti e mafura a mangata le letsoai la eona ho ka ntlafatsa kamano pakeng tsa phofo ea aluminium hydroxide ea ultrafine le molek'hule ea polymer, le ho ntlafatsa thepa ea mechini le ea ts'ebetso ea sehlahisoa.
(4) li-acid tse sa koaheloang tsa tlhaho
Li-acid tse tloaelehileng tse sa koaheloang ke: acrylic acid, methacrylic acid, cinnamic acid, jj. Ka kakaretso, ha asiti e le matla, ho ba bonolo ho theha tlamo ea ionic, kahoo khetha tse ling: acrylic acid le methacrylic acid.
Mefuta e fapaneng ea li-acid tse phelang e ka sebelisoa e le 'ngoe, e ka boela ea sebelisoa ka mokhoa o tsoakiloeng, e leng se etsang hore ho be le phello e ntle ho feta li-ion tsa tšepe tsa alkali tse nang le diminerale tse nang le aluminium hydroxide e ngata.
(5) organosilicon
Macromolecule organosilicon, e tsejoang hape e le oli ea silicon, ke mofuta oa polymer o hokahaneng le sehlopha sa lintho tse phelang athomong ea silicon ka ketane ea khokahano ea oksijene ea silicon (si-o-si) e le masapo. Hangata ho sebelisoa polymethylsiloxane e nang le hydrogen, polydimethylsiloxane e felisitsoeng ke hydroxyl, jj.
2. Ts'ebetso ea phetoho ea bokaholimo ba hydroxide ea aluminium e ntle haholo
Hona jwale, mekgwa ya ho fetola bokahodimo ba phofo ya aluminium hydroxide e ommeng haholo-holo ebile e le metsi.
(1) phetoho e omileng
Mokgweng ona, phofo ya aluminium hydroxide e fetotsweng e futhumatswa mochesong o itseng, mme modifier e tsholohela butle-butle phofong ya aluminium hydroxide e lebelo le hodimo, mme sehlahiswa se emiswa bakeng sa ho paka kamora karabelo ya nako e itseng.
Melemo ea phetoho e omileng ke litlhoko tse tlase tsa lisebelisoa le ts'ebetso e bonolo. Bothata ke hore matla a basebetsi a maholo, sekhahla sa ho roala phofo ea aluminium hydroxide se tlase.
(2) phetoho e metsi
Phetoho e metsi e etsahala ts'ebetsong ea tlhahiso ea phofo ea aluminium hydroxide e ntle haholo, tlhahiso ea aluminium hydroxide slurry kamora ho sefa, ho hlatsoa, ho sefa kuku, mochesong o itseng oa slurry kamora ho eketsa modifier, ho hlohlelletsa nako e itseng, ho sefa, ho omisa le ho seha sephutheloana.
Melemo ea phetoho e metsi ke matla a tlase a basebetsi, ha ho na tšilafalo ea lerōle, katleho e phahameng ea tlhahiso, sekhahla se phahameng sa ho roala phofo ea aluminium hydroxide, 20-30%, phello ea phetoho e phahame ebile e tsitsitse. Ha e bapisoa le phetoho e omileng, phetoho e metsi e na le ts'ebetso e telele le litlhoko tse phahameng lisebelisoa. Ka lebaka la melemo ea phetoho e metsi, butle-butle e nkela mokhoa oa tlhahiso ea phetoho e omileng sebaka.
3. Mokhoa oa tlhahlobo ea phello ea phetoho ea bokaholimo ba aluminium hydroxide e ntle haholo
(1) teko ea sekhahla sa ho monngoa ha oli
Sekhahla sa ho monngoa ha oli se sebediswa haholoholo ho lekanya bongata ba oli ya castor e hlokahalang ha bongata bo itseng ba phofo ya Al (OH) 3 bo fihla feela ho keneng ha metsi, mme bo sebediswa ho hlalosa bongata ba resin e hlokahalang ha bongata bo itseng ba phofo ya Al (OH) 3 bo fihla feela ho keneng ha metsi.
Mokhoa oa ho lemoha o tjena: phofo ea alumina hydroxide e ntle haholo e lekanngoa 'me sampole e omisitsoeng e ka ba 10g, e beoa ka beaker, e tšele oli ea castor ka burette, 'me e tsoakoe ka bonolo le molamu oa khalase ho etsa oli ea castor le sampole e kenngoeng ka ho lekana ka har'a bolo. Palo ea oli ea castor e monngoang ka 100g ea aluminium hydroxide e baliloe, ke hore, sekhahla sa ho monya oli sa phofo ea aluminium hydroxide e ntle haholo.
Kamora ho fetola bokaholimo ba phofo ea aluminium hydroxide, sekhahla sa ho monya oli se tla fetoha ho isa bohōleng bo itseng. Haeba phofo ea aluminium hydroxide e entsoeng ka ultrafine e fetoloa ka sesebelisoa sa ho kopanya silane, sekhahla sa ho monya oli se tla fokotseha ka hoo e ka bang 10%.
(2) Teko ea SEM
Sebopeho sa phofo ea aluminium hydroxide e ntle haholo pele le ka mor'a phetoho se ile sa bonoa ka microscope ea elektrone. Ho hasana ha phofo e fetotsoeng ka har'a matrix ho ne ho le betere ho feta ha sehlahisoa se sa fetoloang.
(3) Teko ea FTIR
Ho sebedisitsoe Fourier infrared spectroscopy (ftir) ho sekaseka dihlopha tse hodima bokahodimo ba sehlahiswa. Mohlala, diteng tsa vinyl – Vi le – Si di ka lekanyetswa ka ir spectra ya phofo ya aluminium hydroxide ka phetoho ya bokahodimo bo metsi ba methyl vinyl silane.
(4) ho fumana thepa ea sehlahisoa
Liphofo tsa aluminium hydroxide tse fetotsoeng le tse sa fetoloang tse sebelisitsoeng li sebelisitsoe ho leka li-index tsa cable tse kang index ea oksijene, matla a ho tsikinyeha le ho lelefala ha ho robeha. Ha ho bapisoa, ho ka fumanoa hore thepa ea ho thibela malakabe le ea mechini ea lihlahisoa tse fetotsoeng e ntlafalitsoe.
(5) lenane la ts'ebetso
Lenane la ho kenya tshebetsong ke lenane la ho lekola phello ya phetoho ya bokahodimo ka ho lekanya peresente ya bongata ba aluminium hydroxide e phaphametseng hodima metsi ho ya ho bongata bohle ba aluminium hydroxide kamora ho fetolwa. Ka lebaka la mefuta e fapaneng ya diphetoho tsa bokahodimo le mekgwa e fapaneng ya kalafo ya phofo ya aluminium hydroxide e ntle haholo, tse ding tsa phofo tse fetotsweng di tla phaphamala hodima metsi mme tse ding di tla teba.
Joalo ka sodium stearate, titanate wet mod mod, hydrophobic silane dry mod mod ka mor'a ultrafine aluminium hydroxide powder, activation index e ka sebelisoa ho lekola phello ea phetoho; Leha ho le joalo, hydrophilic silane e fetotsoe ka mokhoa o omileng, 'me ultrafine aluminium hydroxide powder e fetotsoeng ka mokhoa o silane wet e ne e tla teba ka metsing, kahoo phello ea phetoho e ne e ke ke ea lekoa ka activation index, 'me mokhoa o nepahetseng oa tlhahlobo e ne e le infrared spectroscopy.
Nako ea poso: Mmesa-24-2020