Nɔnɔmewo kple wo zazã .
chloroprene rababa (CR) nye nu vevitɔ si wotsɔ wɔa chloroprene rababa adhesive, adhesive ate ŋu afa le xɔme ƒe dzoxɔxɔ nu, gbãtɔ adhesive ŋusẽ lolo ŋutɔ, ŋusẽ si le ɖoɖo kabakaba, kɔkɔ kadodo ŋusẽ, nyui blibo dɔwɔwɔ, ceram, glass, cerakta, glass, glass, glass, glass, 1 Wogayɔa chloroprene rababa adhesive be, neoprene rubber adhesive hã ƒe ŋkɔe nye 'Universal Adhesive'. Neoprene rababa adhesive ƒe solvent-based, emulsion ƒomevi kple solvent-maɖemaɖe tsi ƒomevi, solvent-based womã ɖe mixed kple graft ƒomevi. Nusiwo wotsɔ tsakae dometɔ aɖewoe nye CR-nulénu dzadzɛwo kple Cr-nulénu siwo me wotsɔa nusiwo wotsɔna ƒoa nui, kpakple Cr-nulénu siwo ŋu wotrɔ asi le la. Graft ƒomevi enye neoprene rubber kple methyl methacrylate kple monomer solution bubu graft copolymerization ƒe adhesive. Fifia la, neoprene rababa si wotsɔ ƒoa nu ɖe nu ŋu la gakpɔtɔ nye esi wozãna wu, ele be woawɔ afɔɖeɖewo atsɔ aɖe ɖiƒoƒo si me aɖi le dzi akpɔtɔ, le ɖekawɔwɔ me kple nutome ƒe nudidiwo.
Gbã la, neoprene rababa ƒomevi si wotsaka .
Mixed neoprene rubber adhesive fia be neoprene rabat to (alo esi wometsaka o) tsɔtsɔ tsakae le solvents tsakatsaka me, resins, antioxidants, fillers kple additive bubuwo tsɔtsɔ kpe ɖe eŋu.
Aging agent, filler kple additive bubuwo ɖe akpa ɖeka alo akpa eve ƒe solvent-based adhesive me.
1、 Nɔnɔmewo .
(1), gbãtɔ adhesive ŋusẽ, neoprene rababa nye bɔbɔe be woa kristarize, adhesive coating kple ƒuƒu ƒoƒo ƒu, ate ŋu anye enumake crystallization plus kple .
Tackifier resin, si ɖea ŋusẽ gã aɖe si wotsɔna léa nu ɖe nu ŋu le gɔmedzedzea me fiana. (2), ŋusẽ si le seɖoɖo kabakaba, neoprene adhesives ɖo ŋu ɖe woawo ŋutɔ ƒe kristalowɔwɔ kple atikewɔwɔ, CR kristalowɔwɔ ƒe duƒuƒu, kadodo enumake le kadodoa megbe la, kadodo ƒe ŋusẽ sɔ gbɔ. (3), kadodo ƒe ŋusẽ si kɔkɔ, neoprene rababa ƒe kristalonyenye si kɔkɔ, ŋusẽ si wotsɔ wɔ ɖekae, eye to esia me la, Cr adhesive ƒe kadodo ƒe ŋusẽ si kɔkɔ. (4), nyadzɔdzɔgblɔmɔnuwo ƒe tsitretsitsi nyuie, ami ƒe tsitretsitsi, tsi ƒe tsitretsitsi, atikewo ƒe tsitretsitsi nyuie. (5) Nusiwo wotsɔna léa nu ɖe nu ŋu la fa miamiamia, wote ŋu nɔa te ɖe enu eye womete ŋu nɔa te ɖe ʋuʋudedi kple ʋuʋudedi nu o. (6), nyui si nɔa anyi didina, kekeli ƒe tsitretsitsi nyuie, ozone ƒe tsitretsitsi, yame ƒe tsitsi ƒe tsitretsitsi, dzobibi ƒe dzoxɔxɔ. Rubber kple gakpowo ƒe kadodo le xɔ me ƒe 20 le kadodo ƒe ŋusẽa megbe kloe meɖina o. (7), zazã vovovowo, ga kple nusiwo menye ga o ƒe nu léna ɖe nu ŋu nyuie, vevietɔ nu vovovo siwo wobla ɖe wo nɔewo ŋu, womate ŋu atsɔ nu bubu siwo wotsɔ goma wɔe la asɔ kple wo nɔewo o. (8), zazã le bɔbɔe, le aŋe ƒuƒu vɔ megbe la, ne kadodoa, kadodo enumake si me womeƒoa nu le ɣeyiɣi didi o ko la, woate ŋu adae le gota ƒe dzoxɔxɔ nu. (9), dzoxɔxɔ ƒe tsitretsitsi nyuie o, vuvɔ ƒe tsitretsitsi menyo o. (10), aɖi kple ɖiƒoƒo aɖe le neoprene-nulénu si wotu ɖe solvent dzi ƒe akpa gãtɔ me.
Mixed neoprene adhesive nye nulénu si wɔa dɔ ŋutɔ, si wozãna geɖe le dɔwɔƒewo ƒe wɔwɔme kple gbesiagbegbenɔnɔ me. Vevietɔ wozãnɛ le dɔwɔƒewo ƒe wɔwɔme kple gbesiagbegbenɔnɔ me, vevietɔ le afɔkpawɔwɔ, xɔmenuwo, xɔtutu, ʋu kple dɔwɔƒe bubuwo me kple agbɔsɔsɔ gã aɖe.
2.Nuwɔwɔ ɖekae .
Neoprene rababa si wotsaka la, neoprene rababa, aŋɔ si wotsɔna ƒoa nu, ga oxide, atike siwo wotsɔna tsia dzodzodzoetsitsi nu, nusiwo tsia dzoxɔxɔ nu, nusiwo wotsɔna yɔa nu me, nusiwo wotsɔna ƒoa nuwo nu ƒu,
crosslinking agent kple bubuawo.
I. chloroprene rababa .
chloroprene rababa, si woyɔna hã be polychloroprene, nye 2-chloro-1,3 butadiene abe nu vevitɔ si wotsɔ wɔa nu to emulsion polymerization me eye wòwɔ elastomer ƒomevi aɖe.
Elastomer ƒe ɣeyiɣia me. Chloroprene rababa nye flake ɣi alo ɣie alo sesẽ sesẽ, kple kristalo si woate ŋu atrɔ, eƒe adhesion nyui, tensile ƒe ŋusẽ si kɔkɔ kple didime. Tsitsi, dzoxɔxɔ, ami kple atikewo ƒe tsitretsitsi nyuie ŋutɔ. Yame ƒe nɔnɔme ƒe tsitretsitsi kple ozone ƒe tsitsi ƒe tsitretsitsi nye evelia le ethylene propylene rababa kple butyl rababa megbe. Dzoxɔxɔ ƒe tsitretsitsi kple nitrile rababa. Tsitretsitsi nyuie ɖe inorganic acid kple alkali ƒe xɔxlɔ̃ ŋu. Eƒe dzoxɔxɔ ƒe dɔmawɔmawɔ nyuie ƒe ɖoɖo aɖe le esi. Dzoxɔxɔ ƒe tsitretsitsi si vɔ̃ɖi wu vie, elektrikŋusẽ ƒe xɔxlɔ̃ menyo o.
2, Tacking resin .
Tackifier resin nye akpa vevi aɖe le solvent-based neoprene adhesive, si ate ŋu ana ŋusẽ si wɔ ɖeka, adhesive ƒe nɔnɔmewo, dzoxɔxɔ ƒe tsitretsitsi, tsi ƒe tsitretsitsi kple tsitsi ƒe tsitretsitsi nanyo ɖe edzi.
Gbɔdɔdɔ kple tsitsi ƒe tsitretsitsi. Tackifier resins siwo wozãnae nye thermo-reactive alkyl phenolic resins, petroleum resins, terpene phenolic resins, terpene resins, rosin-si wotsɔ trɔ asi le phenolic resins, gumarone resins, rosin esters, poly a-methyl me. Le wo dome la, tert-butylphenol formaldehyde resin (2402 resin) ye wɔa dɔ nyuie wu. Tackifier resin mekpɔa ŋusẽ aɖeke kloe ɖe neoprene rababa ƒe kristalonyenye dzi o. Terpene phenolic resin nye non-reactive thermoplastic resin ate ŋu akeke adhesive léle ɖe nu me, eye wòana adhesive layer falɛfalɛ, Gumarone resin hã ana neoprene adhesive .
Gumarone ƒe aŋɔwo hã naa neoprene-nulénuwo ƒe kadodo ƒe ŋusẽ dzina ɖe edzi vie. Chloroprene rababa AF nye carboxylic acid CR, si wotsɔ ɖo adhesive bonding strength si wowɔ la anyi kple dzoxɔxɔ ƒe tsitretsitsi kabakaba, delamination resistance kɔkɔ, ke hã, le eƒe reactivity ta, adhesive ƒe ʋeʋẽ le nudzraɖoƒe ƒe ɖoɖoa me adzi ɖe edzi, si tso magnesium oxide ƒe crosslinking effect gbɔ. Eyata le AF neoprene adhesive dzadzraɖo me be woate ŋu akpɔ viscosity ƒe liƒo nyuitɔ kple dɔwɔwɔ bliboe la, ele be woatsɔ 2402 resin si sɔ akpe ɖe eŋu, eye woawɔ magnesium oxide do ŋgɔ kple resin be woawɔ chelates kple hydroxyl reaction tẽ.
3, ga oxides .
Ga oxides le neoprene adhesives me wɔa akpa ene: acid absorber, anti-scorch agent, vulcanizing agent, resin reactant. Le ɣeyiɣi aɖe megbe la, neoprene rababa aɖe haidrodzin chloride ƒe agbɔsɔsɔ sue aɖe ɖa, ate ŋu ado polymers ƒe gbegblẽ ɖe edzi, eye wòagblẽ ga kple dzɔdzɔme kawo me, atsɔ ga oxides ate ŋu axɔ hydrogen chloride be wòagagblẽ o. Zinc oxide kple magnesium oxide koŋue wozãna le ga oxide siwo wozãna zi geɖe la me. Magnesium oxide ƒe dɔwɔwɔe nye be woaxɔ acid, do ŋgɔ na dɔwɔwɔ, anti-scorch, vulcanization, kple bubuawo Enye neoprene adhesive ƒe akpa vevi aɖe. Magnesium oxide kple resin do ŋgɔ na reaction ate ŋu ana dzoxɔxɔ ƒe tsitretsitsi ƒe tsitretsitsi nanyo ɖe edzi eye wòaxe mɔ ɖe delamination tsidzadza nu, magnesium oxide ƒe agbɔsɔsɔme le pre-reaction effect kple adhesive properties dzi la kpɔa ŋusẽ ɖe edzi, kple magnesium oxide ƒe agbɔsɔsɔme dzina ɖe edzi, dzoxɔxɔ ƒe ŋusẽ dzina ɖe edzi. Magnesium oxide tsɔtsɔ kpe ɖe eŋu ate ŋu ana film si léa nu ɖe nu ŋu la naƒu nyuie nyuie, eye ate ŋu ana kadodo ƒe ŋusẽ si le gɔmedzedzea me nanyo ɖe edzi ŋutɔ, si ate ŋu atso magnesium oxide si me dzo le alo magnesium oxide si le dɔ wɔm gbɔ. Magnesium oxide si me mekɔ o nye ɣie si me nɔnɔme mele o, si me ʋeʋẽ mele o eye vivi mele eme o. Relative Density 3. 58, Melting Point 28520C, Dzotsiƒe 36000C le ya me ate ŋu axɔ carbon dioxide kple tsi vivivi be wòawɔ magnesium carbonate vevi aɖe . Zinc oxide si wotsɔ kpe ɖe chloroprene adhesive ŋu ateŋu awɔ akpa aɖe le acid ƒe xɔxlɔ̃ me, gake ema nye vulcanizing agent menye nusi ŋu woate ŋu aɖo ŋkui o elabena chloroprene adhesive la ƒe akpa gãtɔ nye gota dzoxɔxɔ si zãa vuvɔ le atike la ta mawɔ vulcanization o, ke boŋ le tsidzadza ƒe gɔme hã. Le ɣeyiɣi ma ke me la, zinc oxide ate ŋu ana tsi si léna ɖe nu ŋu la nazu ʋuʋudedi, ale be film si léna ɖe nu ŋu la nalé ɖe nu ŋu, edze abe meƒuna o ene, si wozãna tsɔ blaa polyurethane-tuɖedzi, zinc oxide ana nu la natsi. Wonɔ te ɖe susu siwo le etame dzi ate ŋu ate fli ɖe zinc oxide la me Le nyateƒe me la, duta elektrikmɔ̃ siwo ŋu Cr adhesive mele o metsɔ zinc oxide kpe ɖe eŋu o, glue la me kɔ eye wometsɔe de ƒuƒoƒo me o. Zinc oxide manɔmee la, ate ŋu akpɔ kadodo ƒe ŋusẽ si hiã hã, gake be woaƒo asa na dzobibi le nusiwo wotsɔna léa nu ɖe nu ŋu me, be woaxe mɔ ɖe nusi léna ɖe nu ŋu nu le nudzraɖoƒe ɣeyiɣi didi .
Wɔ gel kple tsidzadza, eye mahe phase separation of the glue vɛ o. Ne neoprene adhesive bonding le dzoxɔxɔ gã zazã me la, ke tsɔ ultra-fine active zinc oxide ƒe agbɔsɔsɔ sue aɖe (1~3 copies) kpe ɖe eŋu.
4, antioxidant .
Be woaxe mɔ ɖe rababa ƒe gbegblẽ nu la, ana tsitsi ƒe tsitretsitsi nanyo ɖe edzi, ana subɔsubɔ ƒe agbenɔƒe nadidi ɖe edzi, be akpa siwo wobla ɖe wo nɔewo ŋu nanɔ anyi eteƒe nadidi o la, ehiã be woatsɔ antioxidant si sɔ akpe ɖe eŋu. Antioxidant D ƒe ŋusẽkpɔɖeamedzi si wozã la nyo ŋutɔ gake ele be woaɖe asi le ɖiƒoƒo kple kansadɔlékuiwo ŋu be woagblẽ wo ɖe ODA, RD, 264, kple bubuawo me boŋ. Woate ŋu azã antioxidant 2246 hã, gake awɔ amadede ƒe tɔtrɔ ƒe nudzɔdzɔ, le chlorine me la, chlorinated solvents nye blɔ si me kɔ, tɔtrɔ siwo ƒe amadede nye blɔ va ɖo amadede dzẽ me le latex la me nye pink.
5, solvent .
Solvent nye solvent-based neoprene adhesive indispensable high amount of amount, adhesive ƒe dɔwɔwɔ kpɔa ŋusẽ vevi aɖe. chloroprene rababa ƒe ʋeʋẽ ƒe xexlẽme si nye 9.2 ~ 9.4, si me wodea benzene, toluene, dichloromethane, methylene chloride, methylene chloride, trichloromethane, 1, 1, butanone, kple carbon, carbon tetrachroide, carbon tetrachane, kple Methyl acetate, isopropyl acetate, acetone, si me mekɔna o le N-alkane, N-heptane, N-heptane, solvent gasoline, isopropanol kple bubuawo me. Menye neoprene rababa si wotsɔ ƒo ƒu ɖe atike siwo womelɔ̃na o kple esiwo me womeɖea asi le wo ŋu o ɖeɖeko me o, gake to tsakatsaka ƒe agbɔsɔsɔ si sɔ dzi la, ate ŋu alɔ neoprene rababa hã ɖe eme. Solvent solubility of neoprene rubber, adhesive viscosity, viscosity stability, adhesive wetting, viscosity retention period, the initial adhesive force, drying speed, bond strength, storage stability, low temperature resistance, flammability, explosiveness, toxicity, contamination, adhesive cost, etc. have a great impact.
6, Filler .
Womezãa filler le solvent-based neoprene adhesive me boo o, elabena adhesive solvent dosage, solid content, easy to precipitate, mateŋu awɔ akpa si wokpɔ mɔ na o. Ne wozã superfine activated calcium carbonate la, ate ŋu anɔ te ɖe enu wu. Eye woate ŋu alé talcum-mi, silica si me ultrafine le, ultrafine aluminum silicate, ultrafine cay zazã me ɖe asi hena ɣeyiɣi kpui aɖe ko. Eye mlɔeba la, tsidzadza ava nɔ anyi.
7, crosslinking agent .
Crosslinking agent, si woyɔna be curing agent, ate ŋu ana neoprene rubber adhesive ƒe curing speed kabakaba, ana kadodo ƒe ŋusẽ nanyo ɖe edzi, dzoxɔxɔ ƒe tsitretsitsi, tsi ƒe tsitretsitsi, ami ƒe tsitretsitsi, atikewo ƒe tsitretsitsi, tsitsi ƒe tsitretsitsi. Wozãa crosslinking agent si wozãna zi geɖe na polyisocyanate, abe tetraisocyanate ene. Polyisocyanate crosslinking agent kple reactivity geɖe, add chloroprene adhesive 2~3h ateŋu anye crosslinked gel, abe akpa eve ƒe adhesive, hafi woazã dɔwɔwɔ, tsakatsaka kple zazã enumake.
8, ga si wotsɔna ƒoa nuwo nu ƒu .
Promoter nye be woado vulcanization ɖe ŋgɔ be dzoxɔxɔ ƒe tsitretsitsi nanyo ɖe edzi eye woatsɔ nusiwo, abe vinyllthiourea (NA-22), diethylthiourea (de-tu), diphenyltiourea (Promoter C), diaminodiphenylmethane, agbɔsɔsɔme si nye general 0.25 ~ 1 ƒe akpa dzi akpe ɖe eŋu. Ame aɖewo siwo wokpɔ le chloroprene adhesive me to BRN-ƒomevi vulcanizing black tsɔtsɔ kpe ɖe eŋu me, ate ŋu ana vulcanization la nawɔ kabakaba, adhesion meɖiɖi wu polyisocyanate vulcanization system eye aɖi ƒe agbɔsɔsɔ dzi ɖe kpɔtɔ ŋutɔ.
