Swihlawulekisi na Switirhisiwa .
Chloroprene rubber (CR) i xitirhisiwa lexikulu xa chloroprene rubber adhesive, xinamarheti xinga horisiwa hi xirhami eka mahiselo ya kamara, matimba yosungula ya xinamarheti i makulu swinene, matimba ya ku simekiwa ka matimba ya xihatla, ya le henhla yo boha, matirhelo ya kahle swinene hinkwawo, ku tirhisiwa ka switirhisiwa swo hambana hambana, nsimbi, ya nsimbhi, ya rhaba na ya dzovo, ya dzovo, ya madzovo, ya madzovo, ya pulasitiki, ya pulasitiki, ya pulasitiki, ya ceramic, ya ceramic, ya ceramic, ya ceramic, ya nsimbi, ya xikhumba. Chloroprene rubber adhesive yitlhela yivuriwa hikokwalaho, neoprene rubber adhesive yitlhela yiva na vito ra 'universal adhesive'. Neoprene rubber adhesive yina solvent-based, emulsion type na solvent-free liquid type, solvent-based yi avanyisiwile hi muxaka wa mixed na graft. Mihlanganiso yi katsa swinamarheti swa CR leswi tengeke na swinamarheti swa CR leswi nga na swilo swo tata, xikan’we na swinamarheti swa CR leswi cinciweke hi resin. Muxaka wa graft i rhaba ya neoprene na methyl methacrylate na swin’wana swa monomer solution graft copolymerization ya xinamarheti. Sweswi, xinamarheti xa rhaba xa neoprene lexi simekiweke eka solvent xahari xona lexi tirhisiwaka ngopfu, magoza yafanele ku tekiwa ku hunguta ku thyakisa loku nga na chefu, hi ku fambisana na swilaveko swa mbango.
Xo sungula, xikhomela-rhanga xa neoprene xa muxaka wa neoprene .
Mixed neoprene rubber adhesive swivula leswaku neoprene rubber hiku hlanganisa (kumbe kungari ku hlanganisa) yi pfanganisiwile eka nkatsakanyo wa swin’wetsin’wetsi, ku cheriwa ti resins, ti antioxidants, ti fillers na swin’wana leswi engetelaka.
Aging agent, filler na swin’wana swiengeteri eka xiphemu xin’we kumbe xiphemu swimbirhi lexi nga na xinamarheti lexi simekiweke eka solvent.
1、 Swihlawulekisi .
(1), matimba yo sungula yo namarhela, rhaba ya neoprene ya olova ku crystallize, ku hlanganisiwa ka xikhomela-ndhawu na ku omisiwa, swi nga va swa xihatla swa crystallization plus na .
Tackifier resin, leyi kombisaka matimba lamakulu yo sungula yo namarhela. (2), matimba ya ku simekiwa ka swinamarheti swa xihatla, swa neoprene swi titshege hi ku crystallization ka swona na ku horisa, rivilo ra cryllization ra Cr, ku boha hi ku hatlisa endzhaku ka loko bond yi na matimba yo boha lama eneleke. (3), matimba yale henhla ya bonding, crystallinity yale henhla ya neoprene rhaba, matimba ya cohesion, naswona xisweswo matimba yale henhla ya bonding ya CR adhesive. (4), ku tiya kahle ka swihangalasamahungu, ku lwisana na oyili, ku lwisana na mati, ku lwisana kahle na tikhemikhali. (5) Leyara yo namarhela yi olova, yi olova naswona yi lwisana ni ku chava ni ku rhurhumela. (6), ku tiya lokunene, ku lwisana lokunene ka ku vonakala, ku lwisana ka ozoni, ku lwisana ka ku dyuhala ka xibakabaka, ku sivela malangavi. Ku boha ka rhaba na nsimbi eka yindlu ya le ndzeni ka yindlu endzhaku ka malembe ya 20 endzhaku ka matimba ya ku boha a swi le ku hungutekeni. (7), matirhiselo yo hambana hambana, switirhisiwa swa nsimbi na leswi nga riki swa nsimbi swi na ku namarhela lokunene, ngopfungopfu switirhisiwa swo hambana leswi hlanganisiweke, swin’wana leswi namarhetaka leswi simekiweke eka rhaba a swi nge ringanisiwi. (8), ku olova ku tirhisiwa, endzhaku ko omisa glue, loko ku khumbana, ku boha hi xihatla handle ka ntshikelelo wo leha, swi nga tshunguriwa eka mahiselo ya le handle. (9), ku tsandzeka ku hisa loku nga riki kahle, ku lwisana na xirhami a swi kahle. (10), vunyingi bya xinamarheti xa neoprene lexi simekiweke eka solvent xi na mpimo wo karhi wa chefu na ku thyakisa.
Mixed neoprene adhesive i xinamarheti lexi tirhaka swinene, lexi tirhisiwaka ngopfu eka vuhumelerisi bya ti indasitiri na vutomi bya siku na siku. Ngopfu ngopfu yitirhisiwa ngopfu eka vuhumelerisi bya ti indasitiri xikan’we na vutomi bya siku na siku, ngopfu ngopfu eka ku endla swiambalo, fanichara, ku aka, mimovha na ti indasitiri tin’wana letingana nhlayo leyikulu.
2.Xivumbeko .
Rhaba ya neoprene leyi pfanganisiweke yi vumbiwa hi rhaba ya neoprene, resin leyi tacking, ti oxides ta nsimbi, swin’wetsin’wetsi, ti antioxidants, ti fillers, ti accelerators, .
Crosslinking agent na swin’wana.
I. rhaba ya chloroprene .
Chloroprene rubber, leyi tivekaka tani hi polychloroprene, i 2-chloro-1,3 butadiene tani hi raw material leyikulu hi emulsion polymerization naswona yi humesile muxaka wa elastomer.
Elastomer. Chloroprene rubber yina muhlovo wo basa kumbe wotshuka wa flake kumbe tough solid, na reversible crystallinity, adhesion ya kahle, matimba yale henhla ya tensile xikan’we naku leha. Ku dyuhala lokunene, ku hisa, mafurha na ku lwisana na tikhemikhali. Ku lwisana na maxelo na ku lwisana na ku dyuhala ka ozone swiva swa vumbirhi endzhaku ka rhaba ya ethylene propylene na rhaba ya butyl. Ku tiya ka ku hisa na rhaba ya nitrile. Ku lwisana kahle na inorganic acid na alkali corrosion. yi na mpimo wo karhi wa ku sivela malangavi. Ku lwisana na ku hisa loku biheke nyana, ku pfaleriwa ka gezi a swi kahle.
2, ku tacking resin .
Tackifier resin i xiphemu xa nkoka xa solvent-based neoprene adhesive, leswinga antswisaka matimba yo hlangana, swivumbeko swa adhesive, ku lwisana na kuhisa, ku lwisana na mati xikan’we naku lwisana na ku dyuhala.
Ku lwisana na rimbewu na ku dyuhala. Tackifier resins leyi tirhisiwaka i ti thermo-reactive alkyl phenolic resins, ti petroleum resins, ti terpene phenolic resins, ti terpene resins, ti phenolic resins leti cinciweke hi rosin, ti gumarone resins, ti rosin esters, poly a-methylstyrene na swin’wana. Exikarhi ka swona, tert-butylphenol formaldehyde resin (2402 resin) yi na vuyelo lebyinene. Tackifier resin yina kwalomu ka mbuyelo eka crystallinity ya neoprene rubber. Terpene phenolic resin i non-reactive thermoplastic resin yinga engetela nkarhi wa adhesive retention, naswona yi endla leswaku adhesive layer yi olova, Gumarone resin yita tlhela yi endla neoprene adhesive .
Ti Gumarone Resins titlhela tinyika ku tlakuka nyana eka matimba ya bond ya swinamarheti swa neoprene. Chloroprene rubber AF i carboxylic acid CR, leyi matimba ya adhesive bonding lawa ya endliweke ya simekiwaka hi ku hatlisa ku lwisana na ku hisa, ku lwisana ka delamination yale henhla, hambiswiritano, hikokwalaho ka ku cinca ka yona, viscosity ya adhesive eka endlelo ro hlayisa yi ta tlakuka, leswi vangiwaka hi crosslinking effect ya magnesium oxide. Hikokwalaho, eka ku lulamisiwa ka AF neoprene adhesive leswaku kuta kumeka ku tiya ka viscosity yo antswa xikan’we na matirhelo yo angarhela swifanele ku engeteriwa eka nhlayo leyi ringaneleke ya 2402 resin, naswona magnesium oxide yifanele ku endliwa ka ha ri emahlweni na resin kuva yi humesa ti chelates tinga sivela magnesium oxide na hydroxyl direct reaction xikan’we naku engetela ku tiya ka viscosity xikan’we naku hisa ka yona.
3, ti- oxide ta nsimbi .
Ti oxides ta nsimbi eka swinamarheti swa neoprene tina swiphemu swa mune: acid absorber, anti-scorch agent, vulcanizing agent, resin reactant. Hi ku famba ka nkarhi, rhaba ya neoprene yi ta humesa nhlayo ya trace ya hydrogen chloride, yi nga hlohletela ku bola kun’wana ka ti polymers, naswona yi ta rhurhumela tinsimbi na ti fibre ta ntumbuluko, ku engetela ti oxides ta nsimbi swi nga tswonga hydrogen chloride ku papalata ku onhaka swi ya emahlweni. Ti oxides ta nsimbi leti tirhisiwaka ngopfu ngopfu i zinc oxide na magnesium oxide. Magnesium oxide yina ntirho wo tswonga acid, pre-reaction, anti-scorch, vulcanization, etc. I xiphemu lexi nga pfuniki nchumu xa neoprene adhesive. Magnesium oxide na resin pre-reaction swinga antswisa ku tiya ka kuhisa ka adhesive xikan’we naku sivela ku khuluka ka delamination, magnesium oxide dosage eka pre-reaction effect xikan’we na swivumbeko swa adhesive swina nkucetelo, laha magnesium oxide dosage ya tlakukaka, matimba yale henhla ya tlakuka, kambe kutshamiseka ka mati ya xikhomanisi ya hunguteka. Ku engeteriwa ka magnesium oxide swinga hatlisisa kahle filimi yo namarhela kuva yi oma, naswona swinga antswisa swinene matimba yosungula ya bond, leswinga vangiwa hi calcined light magnesium oxide kumbe active magnesium oxide. Magnesium oxide yo olova i white amorphous powder, yinga nun’hweli naswona yingari na nantswo. Relative Density 3. 58, Melting Point 28520C, Boiling Point 36000C emoyeni hakatsongotsongo yi nga tswonga khaboni-dayokisayidi na mati ku humesa magnesium carbonate ya xisekelo . Zinc oxide leyi engeteriweke eka chloroprene adhesive yinga tlanga xiave eka ku amukeriwa ka acid, kambe sweswo i vulcanizing agent aswingari na xikongomelo hikuva chloroprene adhesive ngopfu ngopfu i mahiselo yale handle hiku tirhisa xirhami hikokwalaho ka khemikhali a yi nge humesi vulcanization, kambe na le ku hlayiseni ka le hansi ka precipitation. Hi nkarhi lowu fanaka, zinc oxide yinga endla leswaku mati yo namarhela yava na xivumbeko xo biha, leswaku filimi yo namarhela yiva na ku namarhela, yi vonaka yi omile yinga omi, yitirhisiwa ku boha polyurethane foam, zinc oxide yita hlohletela ku dyuhala ka swilo leswi. Hi ku ya hi swivangelo leswi nga laha henhla swi nga khansela zinc oxide entiyisweni, switirhisiwa swa gezi swa le handle leswi nga na CR adhesive a swi engetelanga zinc oxide, glue yi le rivaleni naswona a yi na layeri. Handle ka zinc oxide yinga tlhela yi fikelela matimba ya bonding lawa ya lavekaka, kambe naku papalata ku hisiwa ka adhesive refining, ku sivela xinamarheti eka vuhlayiselo bya nkarhi woleha .
ku humesa gel na mpfula, naswona a swi nge vangi ku hambanisiwa ka swiphemu swa glue. Loko neoprene adhesive bonding eka kutirhisiwa ka mahiselo yale henhla, chela nhlayo yitsongo (1~3 wa tikopi) ta ultra-fine active zinc oxide swa pfuna.
4, antioxidant .
Ku sivela ku bola ka rhaba, ku tlakusa ku lwisana ka ku dyuhala, ku lehisa vutomi bya ntirho, ku hlayisa ku tiya ka swiphemu leswi hlanganisiweke, swa laveka ku engetela antioxidant leyi faneleke. Used antioxidant D effect yi kahle swinene kambe ku thyakisa na carcinogenic swifanele ku tshikiwa eka ODA, RD, 264, na swin’wana ematshan’wini ya sweswo. Antioxidant 2246 yinga tlhela yitirhisiwa, kambe yita humesa xiendlakalo xa ku cinca ka muhlovo, eka ti chlorinated solvents i muhlovo wa wasi wo vonikela, wa wasi kuya eka wa rihlaza eka latex i pink.
5, xitofu .
Solvent i solvent-based neoprene adhesive indispensable high amounce of components, matirhelo ya adhesive yana mbuyelo wa nkoka. Ku olova ka rhaba ya cloroprene Nhlayo ya 9.2 ~ 9.4, leyi n’okaka eka benzeni, toluene, dichloromethane, methylene chloride, methylene chloride, trichloromethane, 1, 1, 1-trichloroethane katsongo, cabor cyclorene, trichloroetnene, trichloroene, etc, etc.. methyl acetate, isopropyl acetate, acetone, leyi nga khulukiki eka N-alkane, N-heptane, N-heptane, petirolo ya solvent, isopropanol na swin’wana. Ti solvents letinga tsakisiki na ti non-solventers ntsena ati rhendzeleki rhaba ya neoprene leyi n’okiweke, kambe hiku tirhisa xiphemu lexi faneleke xa ku hlanganisiwa swinga tlhela swi n’okisela rhaba ya neoprene. Solvent solubility ya neoprene rubber, adhesive viscosity, viscosity stability, adhesive wetting, viscosity retention period, matimba yosungula yo namarhela, rivilo ro oma, matimba ya bond, ku tiya ka vuhlayiselo, ku lwisana ka mahiselo yale hansi, ku pfurha lokukulu, ku buluka, chefu, contatamination, adhesive cost, etc.
6, xitatisi .
Filler eka solvent-based neoprene adhesive ayi tirhisiwi ngopfu, hikuva adhesive solvent dosage, low solid content, easy to precipitate, ayi nge tlangi xiphemu lexi languteriweke. Loko ku tirhisiwa superfine activated calcium carbonate, yi nga ha va yi tshamisekile swinene. Naswona ku tirhisiwa ka ultrafine talcum powder, ultrafine silica, ultrafine aluminium silicate, vumba bya ultrafine byi nga hlayisiwa ntsena nkarhi wo koma lowu tiyeke. Naswona eku heteleleni ku ta va ni mpfula.
7, Muyimeri wa ku hlanganisa .
Crosslinking agent, leyi tlhelaka yitiveka tani hi curing agent, yinga hatlisisa rivilo ro horisa ra neoprene rubber adhesive, yi antswisa matimba yo boha, ku lwisana na kuhisa, ku lwisana na mati, ku lwisana na oyili, ku lwisana na ti khemikhali, ku lwisana na ku dyuhala. Xiaki xa crosslinking lexi tirhisiwaka ngopfu eka polyisocyanate, kufana na tetraisocyanate. Polyisocyanate crosslinking agent na reactivity yale henhla, engetela chloroprene adhesive 2~3H yinga crosslinked gel, tani hi adhesive ya swiphemu swimbirhi, loko kungase tirhisiwa ku tirhisiwa, ku hlanganisiwa naku tirhisiwa hiku hatlisa.
8, xihatlisisi .
Mupromota i ku tlakusa vulcanization ku antswisa ku lwisana na ku hisa na ku engetela swilo, ku fana na Vinylthiourea (NA-22), diethylthiourea (DE-tu), diphenylthiourea (promoter C), diaminodiphenylmethane, mpimo wa 0.25 ~ 1 share. Vanhu van’wana lava kumekaka eka chloroprene adhesive hiku engetela BRN-type vulcanizing black, vanga hatlisisa vulcanization, adhesion ayi le hansi ka polyisocyanate vulcanization system naswona chefu yihunguteka swinene.
