Ts'ebetso ea tlhahiso ea liatlana tsa nitrile tse nang le halogen e tlase e rarahane ho feta ea liatlana tse tloaelehileng tsa nitrile, tse bonts'ang haholo taolong ea litaba tsa halogen, khetho ea lisebelisoa tse tala, le ntlafatso ea ts'ebetso ea tlhahiso. Se latelang ke tlhahlobo ea mathata a ts'ebetso, lihokelo tsa bohlokoa le liphephetso tsa tekheniki:
I. Ho rarahana ha ts'ebetso ea tlhahiso
1. Khetho e tiileng ea thepa e tala
- Ho fumana latex ea rabara ea nitrile butadiene e nang le halogen e tlase:
Latex e tloaelehileng ea rabara ea nitrile butadiene e ka sebelisa li-initiator tse nang le halogen, li-emulsifier kapa li-catalyst (tse kang metsoako e nang le chlorine) nakong ea polymerization, athe ts'ebetso ea halogen e tlase e hloka ho amohela sistimi ea ho qala e se nang halogen/halogen e tlase (joalo ka peroxodisulphate ho fapana le creo-containing e nang le chlorine) kapa ho tlosa halogen e setseng ka ts'ebetso ea tlhoekiso mohatong o latelang.
Meeli ea baemeli ba tšoanang:
Di-sulfurizing agents, di-accelerator, di-antioxidants le di-additives tse ding di hloka ho qoba di-halogen-containing (tse kang di-bromine-flame retardants, di-vulcanization accelerators tse nang le chlorine), mme di hloka ho sebedisa di-additives tse sireletsang tikoloho (tse kang di-vulcanization systems tse se nang halogen, di-coupling agents tsa silane, jj.), tse turang haholo mme di thata ho di bapisa le tshebetso ya di-additives. 2.
2. Taolo ea Halogen ts'ebetsong ea tlhahiso
-Ntlafatso ea ts'ebetso ea polymerization:
Karabelo ea polymerization ea NBR (joalo ka polymerization ea emulsion) e hloka ho laola mocheso, khatello le nako ea karabelo ka nepo, ho fokotsa tlhahiso ea lihlahisoa tse ling (joalo ka halogenated hydrocarbons). Mekhoa ea halogen e tlase e ka hloka linako tse telele tsa karabelo kapa polymerization e arotsoeng ka likarolo, e eketsang tšebeliso ea matla le ho rarahana ha ts'ebetso.
Ho hlwekisa le ho hlwekisa:
Kamora ho polymerization, latex e hloka ho hlatsuoa ka metsi a mekhahlelo e mengata, karohano ea centrifugal le lits'ebetso tse ling ho tlosa li-monomer tse setseng tsa halogenated le li-additives, liatlana tse tloaelehileng li ka hloka makhetlo a 1-2 feela ho hlatsuoa, ha liatlana tse nang le halogen e tlase li hloka makhetlo a 3-5 kapa ho feta, e leng se fellang ka katleho e tlase ea tlhahiso le keketseho ea litšenyehelo tsa kalafo ea metsi a litšila.
Litšobotsi tse ikhethang tsa ts'ebetso ea ho omisa:
Mokhoa oa ho omisa o hloka ho qoba ho senyeha ha thepa mochesong o phahameng ho hlahisa metsoako ea halogen, ho ka 'na ha hlokahala hore ho sebelisoe theknoloji ea ho omisa mocheso o tlase kapa ea ho omisa ka vacuum ho atolosa potoloho ea tlhahiso.
3. Tekanyo e phahameng ea tlhahlobo ea boleng
- Tlhahlobo e nepahetseng ea litaba tsa halogen:
Lisebelisoa tsa tlhahlobo e nepahetseng haholo (mohlala, chromatograph ea ion, spectrometer ea fluorescence ea X-ray) lia hlokahala ho sekaseka ka bongata litaba tsa Cl le Br tsa sehlopha se seng le se seng sa sehlahisoa (moeli oa ho lemoha o hloka ho ba boemong ba ppm), ha liatlana tse tloaelehileng li ka hlahlojoa feela bakeng sa thepa ea tsona ea 'mele (mohlala, matla a ho tsikinyeha le ho lelefala ha ho taboha).
Tekanyo ea ts'ebetso ea mahlakore a mangata:
Kalafo ea halogen e tlase e ka ama litšobotsi tsa mechini tsa liatlana (mohlala, ho tenyetseha, ho hanyetsa ho phunyeha), 'me hoa hlokahala ho fetola mokhoa (mohlala, ho eketsa li-plasticizer tse khethehileng, li-reinforcement agents) ho leka-lekanya halogen e tlase, matla a phahameng le boiketlo, e leng se kenyeletsang liteko tse ngata le ntlafatso ea li-parameter.
Mehato ea bohlokoa ea tlhahiso
Nka tlhahiso e tloaelehileng ea liatlana tsa nitrile butadiene tse nang le halogen e tlase ka mokhoa oa ho ntša metsi, ts'ebetso le mathata ke tse latelang:
1. Tokisetso ea Latex
-Tokisetso ea latex e nang le halogen e tlase:
Kgetha rabara ya nitrile butadiene e nang le halogen e tlase (halogen ≤ 150ppm), eketsa sehlahiswa sa ho ntsha metsi se seng halogenated (mohlala, zinc oxide + sulfur yellow system), di-accelerator tse seng halogenated (mohlala, hyposulfonamides), antioxidant (mohlala, phenyl naphthyl amines), kopanya hantle mme o sefe ho tlosa ditshila.
-Mathata: ho hasana ho sa lekanang ha lintho tse eketsang ho ka lebisa ho vulcanization e sa fellang kapa ho feto-fetoha ha ts'ebetso, ho hlokahala lisebelisoa tse ngata tsa emulsification.
2. Kalafo ea hlobo
-Ho koahela pele ho kalafo:
Dibopeho di lokela ho qoelisoa le ho tlotswa ka moemedi wa ho lokolla o seng wa halogenated (mohlala, starch kapa tharollo ya cellulose) pele ho qoba ho kgomarela nakong ya ho lokollwa ha diatlana, diatlana tse tlwaelehileng di ka sebedisa moemedi wa ho lokolla o nang le halogenated (mohlala, parafini e nang le chlorine).
3. Ho ina liatlana le ho li qoelisa ka har'a vulcanization
-Ho qoelisa ka likaroloana:
Pele ka ho inela le ho sebedisa primer (ho ntlafatsa ho kgomarela), ebe o inela latex ho etsa mmele wa glove, karolo ya tshebetso e hloka ho inela ka makgetlo a mmalwa ho eketsa botenya, mme o omelle kamora ho inela ka nngwe (mocheso ≤80℃, ho qoba karabelo ya halogenation).
Ts'ebetso ea Vulcanization:
Mocheso oa setso oa ho phunya liatlana tsa nitrile ke hoo e ka bang 120-150℃, athe ts'ebetso ea halogen e tlase e ka hloka mocheso o tlase le ho phunya nako e telele (mohlala, 100℃ × metsotso e 60) ho fokotsa ho bola ha lintho tse eketsang ho hlahisa metsoako ea halogen tlas'a mocheso o phahameng.
4. Ho hlatsoa le ho omisa
-Ho hlatsoa ka mekhahlelo e mengata:
Kamora ho hlatsuoa ha liatlana, li lokela ho hlatsuoa ka metsi a hloekisitsoeng ka makhetlo a fetang 3 ho tlosa lintho tse thusang tse setseng le metsoako ea halogen e qhibilihang, 'me ho tlosoa ha metsi ka centrifugal hoa hlokahala kamora ho hlatsuoa ka' ngoe.
Ho omisa:
Sebelisa ho omisa ka potoloho ea moea o chesang (mocheso ≤ 90 ℃) kapa ho omisa ka vacuum ho netefatsa hore mongobo o ka tlase ho 1%, ho qoba ho falla ha li-ion tsa halogen tikolohong e mongobo.
5. Teko le ho paka
-Teko ea Halogen:
Ho nka disampole ka mokhoa o sa reroang oa sehlopha ka seng ho leka dikahare tsa Cl-, Br- (haeba ho sebediswa chromatography ya ion, meedi hangata ke Cl ≤ 900 ppm, Br ≤ 900 ppm, le kakaretso ya dihalogen ≤ 1500 ppm).
-Teko ea ts'ebetso:
Matla a ho thapolla (≥14MPa), ho lelefala ha ho taboha (≥600%), ho hanyetsa ho phunya (≥10N) le li-index tse ling li lokela ho latela ASTM D6319 le maemo a mang.
III. Liphephetso tsa Tekheniki le Boemo ba Indasteri
1. Tekanyo pakeng tsa litšenyehelo le bokgoni
Ka lebaka la thepa e tala e turang le ts'ebetso e telele, litšenyehelo tsa tlhahiso ea ts'ebetso ea halogen e tlase li phahame ka 20%-30% ho feta liatlana tse tloaelehileng tsa nitrile, 'me bokhoni ba tlhahiso bo fokotsehile ka hoo e ka bang 15% (mohlala, nako e telele ea ho hlatsoa le ho omisa).
2. Kotsi ea ho senyeha ha ts'ebetso
Bokgoni ba ho ntsha di-vulcanization tsa di-additives tse ding tse nang le halogen e tlase bo tlase ho feta ba di-additives tsa setso tse nang le halogen, e leng se ka lebisang ho fokotseheng ha ho hanyetsa ha diatlana ho tsofala, mme bo hloka ho lefellwa ka di-nano-fillers (mohlala, silica) kapa theknoloji ya ho kopanya di-cross-linking e kopaneng.
3. Tlhohlelletso ea melao ea tikoloho
Thibelo ea EU ea Tšebeliso ea Lintho tse Ling tse Kotsi Taelong ea Lisebelisoa tsa Motlakase le tsa Elektronike (RoHS), Khomishene ea Machaba ea Botekgeniki ba Motlakase (IEC) le litekanyetso tse ling tšebeliso e tlamang ea thepa ea halogen e tlase tšimong ea elektroniki ho khothaletsa ts'ebetso ea ntlafatso.
4. Ho tsepamisa maikutlo indastering e phahameng
Hona jwale, diatlana tsa lefatshe tsa nitrile tse nang le halogen e tlase di hlahiswa haholo ke Top Glove ya Malaysia, Ansell ya United States le dinatla tse ding. Dikgwebo tsa malapeng tse kang Lanshan Medical le Ingenics Medical di ntse di phunyeletsa butle-butle hodima dithibelo tsa tekheniki tse nang le halogen e tlase.
Nako ea poso: Mots'eanong-27-2025