Adhesives yog cov khoom sib txuas uas nyob ib sab ntawm cov khoom ua ke.Adhesives tuaj yeem muab faib ua cov nplaum nplaum, cov hlua khi, cov nplaum nplaum, cov nplaum nplaum nplaum, cov tackifiers thiab impregnating adhesives, thiab lwm yam.
Tackifier: yog hais txog cov khoom uas tuaj yeem ua kom cov viscosity ntawm unvulcanized adhesives, xws li roj av resin, coumarone resin, styrene indene resin, non-thermally reactive p-alkylphenol formaldehyde resin thiab ntoo thuv tar.Adhesion yog hais txog lub zog lossis kev ua haujlwm uas yuav tsum tau tev tawm ob lub yeeb yaj kiab homogeneous tom qab ib qho me me thiab lub sij hawm luv luv lamination, uas yog, nws tus kheej-adhesion.Lub tackifier tsuas yog nce qhov viscosity ntawm cov khoom siv roj hmab thaum lub sij hawm ua cov khoom siv roj hmab ntau, uas ua rau cov txheej txheem sib txuas ntawm cov roj hmab txheej.Nws tsuas yog txhim kho cov txiaj ntsig kev sib raug zoo los ntawm kev ua kom lub cev adsorption, thiab belongs rau qeb ntawm kev pab cuam.
Impregnation adhesive: tseem hu ua indirect adhesive, yog hais txog cov kua impregnation uas muaj cov khoom hnyav uas npog cov ntaub fiber ntau los yog nkag mus rau hauv qhov sib txawv ntawm cov ntaub los ntawm cov txheej txheem impregnation.Cov ntaub yog chemically bonded, thiab cov kua impregnating no hu ua impregnating adhesive, xws li ib tug peb-tivthaiv NaOH emulsion bonding system ntawm resorcinol, formaldehyde thiab latex, los yog RFL system, uas yog los txhim kho cov nyhuv ntawm cov roj hmab thiab fiber.ib txoj hauv kev tseem ceeb.Rau cov fibers sib txawv, muaj pes tsawg leeg ntawm cov kua impregnating yog txawv.Piv txwv li, cov latex (L tivthaiv) tuaj yeem yog NRL lossis butyl pyridine latex, thiab tus nqi ntawm resorcinol thiab formaldehyde tuaj yeem hloov pauv.Rau cov fibers uas nyuaj rau kev sib txuas xws li polyester, aramid thiab iav fiber ntau, ntxiv rau RFL muaj pes tsawg leeg, lwm cov khoom xyaw uas tsim nyog rau kev sib txuas yuav tsum tau ntxiv, xws li isocyanate, silane coupling agent, thiab lwm yam.
Bonding tus neeg sawv cev: Kuj tseem hu ua cov nplaum ncaj qha, nws yog tov rau hauv cov khoom sib xyaw thaum sib xyaw, thiab thaum lub sij hawm vulcanization, tshuaj sib txuas los yog cov khoom siv muaj zog adsorption tshwm sim ntawm qhov chaw yuav tsum tau ua raws li cov khoom sib txuas ruaj khov, xws li cov khoom sib txuas.Hydroquinone pub-methylene pub-silica bonding system (m-methyl dawb system, HRH system), triazine bonding system.Nyob rau hauv hom nplaum no, tsis muaj cov txheej txheem nruab nrab raws li cov nplaum rau ntawm qhov chaw ntawm ob cov ntaub ntawv uas daim ntawv cog lus tsim.Cov nplaum no feem ntau yog siv los tsim kev ruaj khov thiab ruaj khov ntawm cov khoom siv roj hmab thiab cov pob txha.
Binder (adhesive): yog hais txog cov khoom uas adheres discontinuous hmoov los yog cov ntaub ntawv fibrous ua ke los ua ib tug tas mus li, xws li ntawv pulp binder, non-woven binder, asbestos binder, hmoov Cov binders siv nyob rau hauv ntub granulation feem ntau yog kua los yog semi- Cov kua dej, thiab cov ntawv khi thiab cov hmoov sib tov sib xyaw ua ke los ntawm kev kub ceev nplawm thiab lwm txoj hauv kev, thiab cov binder muab cohesive quab yuam rau kev sib txuas.
Adhesivepromotingagen: yog hais txog cov khoom siv tshuaj uas ncaj qha ua rau lub cev adsorption lossis tshuaj sib txuas ntawm cov ntaub ntawv, tab sis tuaj yeem txhawb qhov tshwm sim ntawm adhesion, xws li hauv adhesion ntawm roj hmab thiab tooj dag-plated hlau.Cov organic cobalt ntsev siv nyob rau hauv cov txheej txheem yog adhesion txhawb nqa.Qhov kev txhawb nqa adhesion no kuj tseem ncaj qha ntxiv rau cov khoom sib xyaw ua tus neeg sawv cev thiab ua lub luag haujlwm hauv cov txheej txheem kub vulcanization.
Adhesive (adhesive): yog hais txog ib chav kawm ntawm cov khoom uas txuas ob lossis ntau qhov chaw (los yog cov khoom siv) ua ke, feem ntau yog cov kua nplaum los yog daim kab xev nplaum, thiab ua tiav adhesion los ntawm kev txau, txheej thiab nplaum.Lub hom phiaj.Txoj kev sib txuas no yog tsim los ua ib qho kev sib txuas nruab nrab ntawm cov nplaum nplaum uas yog cov khoom tseem ceeb ntawm qhov chaw ntawm ob cov ntaub ntawv, xws li kev sib txuas ntawm cov roj hmab vulcanized, kev sib txuas ntawm cov roj hmab vulcanized thiab tawv nqaij, ntoo thiab hlau.Adhesive Nws tus kheej cov khoom thiab kev ua tau zoo, thiab cov txheej txheem kev sib txuas txiav txim siab cov txiaj ntsig kev sib raug zoo.
Ntawm cov nplaum uas tau hais los saum no, cov nplaum nplaum nrog daim ntawv thov dav, ntau npaum li cas thiab cov txheej txheem ua haujlwm yooj yim yog cov nplaum.Muaj ntau ntau yam ntawm cov nplaum, thiab lawv cov kev ua yeeb yam txawv.Xaiv cov ntau yam uas tsim nyog tuaj yeem tau txais kev sib txuas ntau dua.Yog li ntawd, cov nplaum nplaum tau tsim sai heev thiab tau dhau los ua cov khoom siv feem ntau hauv cov txheej txheem sib txuas.
Tam sim no, feem ntau siv cov nplaum nplaum yog isocyanate adhesives, halogen-muaj adhesives thiab phenolic resin adhesives.Nws cov nplaum isocyanate yog cov nplaum zoo rau cov roj hmab thiab ntau yam hlau.Nws yog tus cwj pwm los ntawm kev sib raug zoo ntawm lub zog, kev poob siab zoo heev, cov txheej txheem yooj yim, roj tsis kam, hnyav tsis kam, kua roj tsis kam, kua qaub thiab alkali tsis kam thiab lwm yam khoom, tab sis qhov kub thiab txias tsis zoo..Hydrochlorinated roj hmab yog cov khoom tau los ntawm cov tshuaj tiv thaiv ntawm cov roj hmab ntuj thiab hydrogen chloride, uas muaj cov tshuaj lom neeg ruaj khov thiab tsis hlawv.Chlorinated rubber adhesives nrog adhesion zoo tuaj yeem tau los ntawm dissolving chlorinated roj hmab hauv tus neeg sawv cev tsim nyog.Chlorinated roj hmab nplaum feem ntau yog siv rau cov roj hmab polar (neoprene roj hmab thiab nitrile roj hmab, thiab lwm yam) thiab hlau (steel, aluminium, kuj tseem siv tau los ua cov txheej tiv thaiv saum npoo vim nws cov dej tsis zoo thiab dej hiav txwv.
Post lub sij hawm: May-06-2022