Ntụ ntụ hydroxide nke Ultrafine aluminum nwere ọtụtụ ọrụ dịka ihe mgbochi ire ọkụ, iwepụ anwụrụ ọkụ na ijupụta, ma nwee ike imepụta mmetụta synergistic na-egbochi ire ọkụ site na iji phosphorus na ihe ndị ọzọ. Ọ bụ ihe dị mkpa maka nchekwa gburugburu ebe obibi na ngwa eletrọniki, kemịkalụ, eriri, plastik, rọba na ụlọ ọrụ ndị ọzọ.
Aluminum hydroxide bụ ụdị ihe na-eme ka ọkụ ghara ịdị n'ime ya, iji nweta mmetụta ka mma nke ihe na-eme ka ọkụ ghara ịdị n'ime ya, ego njupụta kwesịrị ịdị karịa 40% (ngụkọta ego), ụfọdụ ọbụna dị elu ruo 60%, mana oke njupụta ahụ anaghị emetụta ihe ndị dị n'ime ya nke ukwuu, kamakwa ọ na-eme ka arụmọrụ mmepụta na nhazi ka njọ.
Ya mere, iji mee ka ntụ ntụ hydroxide aluminum dị mma nke ukwuu, enwere ike iji ya mee ihe n'ọtụtụ ebe na ihe ndị na-egbochi ire ọkụ dịka polyolefin, ọ ga-abụrịrị mgbanwe elu elu nke aluminum hydroxide, iji melite ihe anụ ahụ na kemịkalụ dị n'elu, melite ntụ ntụ na substrate aluminum hydroxide dị mma, ndakọrịta na mgbasa nke polymer ma ọ bụ resin organic na substrate organic, iji melite ike igwe nke ihe ahụ na arụmọrụ zuru oke.
1. Ihe na-agbanwe elu nke a na-ejikarị eme ihe maka ultrafine aluminum hydroxide
(1) ihe na-ejikọ silane
E nwere ihe karịrị otu narị ụdị ihe njikọta silane, nke ihe njikọta silane otu monolayer bụ nke kachasị kwụsie ike. Nkwụsi ike nke ihe njikọta silane otu ọrụ dị n'etiti ígwè na ígwè. Na mgbakwunye na ime ka ihe onwunwe nke ngwaahịa ndị a dịkwuo mma, ihe nnọchi anya njikọ silane otu ọrụ nwekwara ike ime ka ihe onwunwe eletriki na iguzogide mmiri nke ngwaahịa ndị ahụ ka mma.
(2) ihe njikọ zirconium
Ihe nnọchite anya njikọ zirconium klas nke nwere zirconium aluminate dị ala karịa oke molekul nke polima inorganic na isi yinye nke molekul na mgbagwoju anya nke ụdị abụọ nke ligand organic, dentate nwere ihe nnọchite anya njikọ dị mma hydroxyl kwụsiri ike, dentate ọzọ na ihe nnọchite anya njikọ dị mma mmeghachi omume organic, ntụ ntụ aluminum hydroxide superfine aluminum hydroxide nwere mmetụta dị mma agbanwere.
(3) abụba dị elu na nnu ha
N'ime usoro molekul nke abụba dị elu na nnu ha, otu nsọtụ bụ otu alkyl ogologo, na nsọtụ nke ọzọ bụ otu carboxyl na nnu ígwè ya nke nwere ike imeghachi omume na otu ọrụ dị n'elu nke aluminum hydroxide. Iji acid fatty acid dị elu na nnu ya eme ihe nwere ike ime ka mmekọrịta dị n'etiti ntụ ntụ ultrafine aluminum hydroxide na molekul polymer dịkwuo mma, ma melite njirimara igwe na nhazi nke ngwaahịa ahụ.
(4) asịd organic ndị na-anaghị eju afọ
Asịd organic ndị a na-anaghị ejupụtakarị bụ: acrylic acid, methacrylic acid, cinnamic acid, wdg. N'ikwu ya n'ozuzu, ka acid ahụ sikwuo ike, otú ahụ ka ọ na-adị mfe ịmepụta njikọ ionic, yabụ họrọ ihe ndị ọzọ: acrylic acid na methacrylic acid.
Enwere ike iji ọtụtụ asịd organic dị iche iche naanị ha, enwere ike iji ha mee ihe dị iche iche, ọgwụgwọ nke ion metal alkali nwere ntụ ntụ mineral ultrafine aluminum hydroxide, mmetụta ya ka mma.
(5) organosilicon
Macromolecule organosilicon, nke a makwaara dị ka mmanụ silicon, bụ ụdị polima nke jikọtara ya na otu organic na silicon atom site na silicon oxygen bond yinye (si-o-si) dị ka skeleton. A na-ejikarị polymethylsiloxane nwere hydrogen, polydimethylsiloxane nke hydroxyl kwụsịrị, wdg.
2. Usoro mgbanwe elu nke ultra-mma aluminum hydroxide
Ugbu a, ụzọ mgbanwe elu nke ntụ ntụ ultrafine aluminum hydroxide bụkarị akọrọ ma dị mmiri mmiri.
(1) mgbanwe akọrọ
N'ime usoro a, a na-eme ka ntụ ntụ ultrafine aluminum hydroxide nke agbanwere agbanwe ruo okpomọkụ ụfọdụ, a na-awụpụkwa ihe na-agbanwe agbanwe nwayọ nwayọ n'ime ntụ ntụ aluminum hydroxide dị elu, a na-akwụsịkwa ngwaahịa ahụ maka nkwakọ ngwaahịa mgbe mmeghachi omume ya gasịrị n'oge ụfọdụ.
Uru nke mgbanwe akọrọ bụ obere ihe achọrọ na akụrụngwa na ọrụ dị mfe. Ihe na-adịghị mma bụ na ike ọrụ nke ndị ọrụ buru ibu, ọnụego mkpuchi ntụ ntụ aluminum hydroxide dị ala.
(2) mgbanwe mmiri mmiri
Mgbanwe mmiri dị na mmepụta nke ntụ ntụ ultrafine aluminum hydroxide, mmepụta nke slurry aluminum hydroxide mgbe nzachachara, saa, na-eti achịcha nzacha, na okpomọkụ nke ịkụ slurry mgbe etinyere ihe ndozi, na-akpali ruo oge ụfọdụ, na-enyocha, na-akpọ nkụ ma na-eti ihe mkpuchi.
Uru nke mgbanwe mmiri mmiri bụ obere ike ọrụ, enweghị mmetọ uzuzu, arụmọrụ mmepụta dị elu, oke mkpuchi ntụ ntụ aluminom hydroxide dị elu, 20-30%, mmetụta mgbanwe ahụ dị elu ma kwụsie ike. Ma e jiri ya tụnyere mgbanwe akọrọ, mgbanwe mmiri mmiri nwere usoro dị ogologo na ihe achọrọ dị elu na akụrụngwa. N'ihi uru nke mgbanwe mmiri mmiri, ọ na-eji nwayọọ nwayọọ dochie usoro mmepụta mgbanwe akọrọ.
3. Usoro nyocha nke mmetụta mgbanwe elu nke ultrafine aluminum hydroxide
(1) ule ọnụego mmịpụta mmanụ
A na-ejikarị ọnụego mmịpụta mmanụ atụ ọnụọgụ mmanụ castor dị mkpa mgbe ụfọdụ ntụ ntụ Al (OH) 3 ruru njupụta saturation, a na-ejikwa ya akọwa ọnụọgụ resin achọrọ mgbe ụfọdụ ntụ ntụ Al (OH) 3 ruru njupụta saturation.
Usoro nchọpụta a bụ otu a: a na-atụ ntụ ntụ alumina hydroxide dị elu ma kpọọ nkụ ihe dị ka 10g, tinye ya na beaker, tinye mmanụ castor na burette, wee gwakọta ya nwayọ na mkpanaka iko iji mee ka mmanụ castor na ihe nlele ahụ banye n'ime bọọlụ. A gbakọrọ ọnụọgụ mmanụ castor a na-etinye na 100g nke aluminum hydroxide, ya bụ, ọnụego mmịpụta mmanụ nke ntụ ntụ ultrafine aluminum hydroxide.
Mgbe agbanwechara ntụ ntụ aluminom hydroxide n'elu, ọnụego mmịpụta mmanụ ga-agbanwe ruo n'ókè ụfọdụ. Ọ bụrụ na ejiri ihe njikọ silane gbanwee ntụ ntụ aluminom hydroxide ultrafine, ọnụego mmịpụta mmanụ ga-ebelata ihe dị ka 10%.
(2) Ule SEM
E jiri igwe elektrọn microscope chọpụta ọdịdị nke ntụ ntụ ultrafine aluminum hydroxide tupu na mgbe emezigharịrị ya. Mgbasa nke ntụ ntụ emezigharịrị na matrix ahụ ka mma karịa nke ngwaahịa a na-agbanwebeghị.
(3) Ule FTIR
E jiri Fourier infrared spectroscopy (ftir) nyochaa otu dị na elu ngwaahịa ahụ. Dịka ọmụmaatụ, enwere ike ịchọpụta ọdịnaya nke vinyl – Vi na – Si site na ir spectra nke ntụ ntụ aluminum hydroxide site na mgbanwe elu mmiri nke methyl vinyl silane.
(4) mkpebi nke njirimara ngwaahịa
E jiri ntụ ntụ ultrafine aluminum hydroxide emezigharịrị na nke a na-agbanwebeghị emezi iji nwalee ihe nrịbama eriri dị ka ihe nrịbama oxygen, ike nrụgide na ogologo oge mgbe ezumike gasịrị. Site na ntụnyere, enwere ike ịchọpụta na ihe mgbochi ọkụ na njirimara igwe nke ngwaahịa ndị agbanwere agbanwe emeela ka mma.
(5) ndeksi mmalite
Ndekọ mmegharị bụ ndeksi iji nyochaa mmetụta mgbanwe elu site n'ịtụ pasent nke ọnụọgụ aluminom hydroxide na-ese n'elu mmiri ruo na mkpokọta aluminom hydroxide mgbe emezigharịrị ya. N'ihi ụdị mgbanwe elu dị iche iche na ụzọ ọgwụgwọ dị iche iche nke ntụ ntụ aluminom hydroxide ultrafine, ụfọdụ ntụ ntụ emezigharịrị ga-ese n'elu mmiri ma ụfọdụ ga-emikpu.
Dịka sodium stearate, mgbanwe mmiri titanate, mgbanwe mmiri silane hydrophobic mgbe ntụ ntụ ultrafine aluminum hydroxide gasịrị, enwere ike iji ndeksi mmalite iji nyochaa mmetụta mgbanwe ahụ; Agbanyeghị, a gbanwere silane hydrophilic site na usoro akọrọ, ntụ ntụ ultrafine aluminum hydroxide nke usoro silane weat gbanwere ga-emikpu n'ime mmiri, yabụ enweghị ike inyocha mmetụta mgbanwe ahụ site na ndeksi mmalite, usoro nyocha ziri ezi bụ infrared spectroscopy.
Oge ozi: Eprel-24-2020