Kwinkqubo yokwenziwa kweeglavu zelatex, yonke idiphu kunye nokuphilisa kuxhomekeke kunxibelelwano oluncinci lwamandla eemolekyuli. Ubungakanani bokulinganisa izinto kumgangatho ohambelanayo ukusuka kwimveliso engaguqukiyo, okuvumela ukuthintela iziphene ezisebenzayo ekuvelisweni kweeglavu zelatex ezifana neemingxuma zepinki, ubukhulu obungalinganiyo kunye namandla aphantsi okuxinana.
I-Complex Rheology yeLatex yeRabha yendalo (NRL)
I-latex yerabha yendalo yi-colloidal suspension eyinkimbinkimbi, enamanzi e-colloidal yamasuntswana erabha. Indlela esebenza ngayo ayisiyo-Newtonian kwaye, ngakumbi, yi-pseudoplastic okanye i-shear-thinning. Oku kuthetha ukuba njengoko izinga lokucheba lisanda, i-viscosity ye-latex iyancipha. Le nto yenzeka kuba amasuntswana erabha asasazekileyo, ajongiswe ngokungacwangciswanga xa ephumle, aqala ukuzilungelelanisa kwicala lokuhamba phantsi koxinzelelo olukhulayo lokucheba, okuvumela ulwelo ukuba luhambe ngokulula.
Nangona kunjalo, imeko ye-rheological yeekhompawundi ze-latex ayinazo iingxaki zayo. Nangona ngokubanzi i-pseudoplastic, ezinye iifomyula, ezifana nezo zizaliswe yisitatshi, zibonakalisiwe zibonisa ukuziphatha okubalulekileyo nokuchasene nokubonakalayo: ukucheba-ukutyeba. Kule meko, i-viscosity iyanda ngokulinganayo ngesantya sokucheba. Ubukho bale ndlela yokuziphatha engaqhelekanga kwezinye iifomyula bubonisa umngeni omkhulu wolawulo lomgangatho. Icebisa ukuba i-viscometer eshear ephantsi inokubonelela ngokufundwa kwe-viscosity okulahlekisayo okungabonisi ngokuchanekileyo indlela yokwenza kwe-fluid phantsi kwamandla e-shear aphezulu adibene nayo kwinkqubo yokuntywila ngesantya esiphezulu. Icebo elibanzi lokulawula umgangatho kufuneka ke ngoko lisebenzise izixhobo zokulinganisa ezinokubamba i-viscosity kuluhlu olubanzi lwamazinga e-shear, ukuqinisekisa ukubonakaliswa kokwenyani kwendlela yokuziphatha kwe-fluid kwi-process.
Izinto Ezilawula Ukuxinana KweLatex Compound
Ukuqina kwe-latex compound akuguquki; yimpawu eguquguqukayo ephenjelelwa zizinto ezininzi, zonke ekufuneka zilawulwe ngononophelo.
Umxholo opheleleyo wezinto eziqinileyo (TSC):Eyona nto ichaphazela i-viscosity kukuxinana kwezinto eziqinileyo kwi-compound. Umxholo ophezulu we-total solids ngokubanzi uphumela kwi-viscosity ephezulu, elicebo elicwangcisiweyo lokwenza iiglavu ezityebileyo. Nangona kunjalo, olu lwalamano alukho ngqo. I-viscosity ihlala izinzile ukuya kuthi ga kwi-"critical total solids content (TSCc)," emva koko iyanda ngokukhawuleza. Olu lwalamano olungekho ngqo luyinto ephambili ekuqwalaselweni kwenkqubo, njengoko ukudlula i-TSCc kunokukhokelela ekunyukeni kwe-viscosity ngokukhawuleza kwaye kunzima ukuyilawula.
Ubushushu:Ukuqina kunye nobushushu bunobudlelwane obusisiseko nobuchaseneyo. Njengoko ubushushu be-latex busanda, ukuqina kwayo kuncipha. Uphando lubonise ukuba ukunyuka okuncinci njenge-15°C kunokunciphisa ukuqina kwesampuli ye-latex ngaphezulu kwama-30%. Esi siphumo sinamandla sithetha ukuba ukugcina ubushushu obuzinzileyo yimfuneko epheleleyo yokuqina okuzinzileyo, okwenza ulawulo oluchanekileyo lobushushu lube yinxalenye engenakuphikiswana ngayo yomgca wemveliso.
Izongezo zeKhemikhali:Iimpawu zokugqibela ze-latex compound zilungiswa kakuhle yi-cocktail echanekileyo yezithako zeekhemikhali. Ezi arhente, ukusuka kwi-vulcanization accelerators ukuya kwi-stabilizers, zitshintsha kakhulu i-rheology ye-compound. Umzekelo, izongezo ezithile ezikhulisa i-viscosity, ezifana ne-fumed silica, zongezwa ngobuchule ukuze kuvunyelwe ukuveliswa kwezinto ezityebileyo ngaphandle kokunyusa umxholo we-solids iyonke. Ezinye izongezo ezifana ne-dispersants zisetyenziselwa ukugcina uzinzo lwe-compound kunye nokuthintela utshintsho olungafunekiyo lwe-viscosity. Olu nxibelelwano lwezixhobo zeekhemikhali, nganye inefuthe layo kwi-viscosity kunye nozinzo, lugxininisa ubunzima besigaba sokudibanisa.
Ukuqaqamba kwiNkqubo yokuVelisa iiGlavu zeLatex
Ubudlelwane Phakathi Kokuxinana Nomgangatho Wemveliso
Kwiinkqubo yokwenziwa kweeglavu zelatex, i-viscosity ingaphezulu nje kwe-metric elula; yimbonakaliso ebonakalayo yomgangatho wemveliso. Yinto esisiseko ethi, xa ilawulwa ngokuchanekileyo, ilawule iimpawu zokusebenza kwemveliso, kwaye xa ilawulwa gwenxa, ibangele uthotho lweempazamo ezibizayo.
Ubukhulu beFilimu kunye nokuLungelelaniswa:Eyona khonkco lithe ngqo phakathi kobungqindilili kunye nomgangatho wemveliso kukwenziwa kwefilimu yelatex. Ubungqindilili yeyona nto iphambili ebangela ubungqindilili befilimu ngexesha lenkqubo yokuntywila. Ubungqindilili obuphezulu buvumela ukuba iifilimu ezijiyileyo zibekwe kwindawo yokuqala.
Ukuqina kunye namandla:Ukuqina kwefilimu yokugqibela yelatex kuxhomekeke ngokukodwa kwi-viscosity yekhompawundi eyakhiwa kuyo. Ulawulo olufanelekileyo lwe-viscosity ngexesha lokuntywila luqinisekisa ukwakheka kwefilimu eqinileyo, edibeneyo enokumelana nokukrazuka nokubhoboka. Oku kuyimfuneko yokuqinisekisa ukuba iglavu isebenza njengomqobo osebenzayo ngokuchasene nongcoliseko olunqamlezileyo kunye neengozi zokusingqongileyo.
Impembelelo Yokusebenza Nezoqoqosho Yolawulo Olungasebenziyo Lokuxinana
Iziphumo zokulawulwa kakubi kwe-viscosity zidlulela ngaphaya kokusebenza kakuhle kwemveliso. Zichaphazela ngokuthe ngqo ukusebenza kakuhle komenzi kunye nenzuzo.
Ukwanda kweNkunkuma yezinto kunye neendleko:Ukuguquguquka kwe-viscosity kukhokelela ekubeni izinto ezisetyenziswa kakhulu okanye ezingafakwanga kakuhle kwii-glove formers, nto leyo ekhokelela kumazinga aphezulu okulahlwa kunye nenkunkuma enkulu yezinto. I-glove nganye elahliweyo imele ukulahleka kwezinto ezikrwada, amandla, kunye nomsebenzi, nto leyo etshabalalisa inzuzo.
Ukungazinzi kwenkqubo kunye nexesha lokungasebenzi:Ukuxinana okungazinzanga kunokubangela iingxaki ezifana nokuvaleka kwemibhobho okanye iimpompo kwaye kukhokelele ekungalinganini kweediphozithi kwiifomer. Ezi ngxaki zifuna ukulungiswa rhoqo ngesandla kumgca wenkqubo, okubangela ukungasebenzi, ukunciphisa ukusebenza, kunye nokuchitha amandla abalulekileyo abasebenzi.
Ulawulo olusebenzayo lwe-viscosity lukhokelela kubukhulu obufanayo befilimu, nto leyo eyonyusa ukuqina kwayo kwaye inciphise iziphene ezifana neemingxuma, nto leyo ebangela izinga eliphantsi lokwaliwa. Oku, ngakolunye uhlangothi, kunyusa isivuno semveliso kwaye ekugqibeleni kwandisa inzuzo. Ngokwale mbono, utyalo-mali kwitekhnoloji yokulawula i-viscosity ayisiyonto yokuphucula nje ubugcisa; licebo eliphambili leshishini elinembuyekezo ecacileyo nebalulekileyo kutyalo-mali.
Ulawulo lweNgqiqo kwiSigaba ngasinye
Ukudibanisa kunye nokuxuba
Ulawulo lwe-viscosity eukuvelisa iiglavu zelatexyinkalo ebanzi eqala kungekuphela kumgca wemveliso, kodwa kwigumbi elidibanisa izinto. Apha, i-latex eluhlaza idityaniswe ne-cocktail echanekileyo yezongezo ukuze kufezekiswe iipropati ze-rheological ezifunwayo. Izongezo eziphambili ziquka ii-vulcanization agents, ii-accelerators, iziqinisi, kwaye, okubalulekileyo, ii-viscosity modifiers. Ukongezwa ngabom kwe-viscosity-increasing fumed silica, umzekelo, sisicwangciso esithe ngqo sokufezekisa ubukhulu befilimu obufunwayo.
Inkalo ebaluleke kakhulu kwinqanaba lokudibanisa ibandakanya ukusetyenziswa kwezinyibilikisi kunye neearhente zokumanzisa. Izinyibilikisi zibalulekile ekuthinteleni uzinzo olubi lwezinyibilikisi kunye neengxaki ze-viscosity. Kwelinye icala, iiarhente zokumanzisa ziyimfuneko ukunciphisa uxinzelelo lomphezulu wesisombululo se-coagulant, ukuqinisekisa ukuba sigubungela i-ceramic yangaphambili ngokulinganayo. Nangona kunjalo, kukho i-paradox: uninzi lweearhente zokumanzisa, ingakumbi xa zixutywe kwi-RPM ephezulu, zidla ngokubangela i-foam. Le foam yimbangela ethe ngqo yeziphene, njengoko idala iipokotho zomoya ezikhokelela kumabala amancinci kunye nemingxuma kwimveliso yokugqibela. Ukusetyenziswa kweearhente zokuthintela ukugqwala ke ngoko kuchasene kakhulu nale ngxaki, ukuqinisekisa ibhafu yokuntywila ezinzileyo, engenafoam ekhuthaza ukwakheka kwefilimu rhoqo.
Ukudipha kunye nokwenza: Ukuchaneka kokubekwa kwefilimu
Ukwakheka kwefilimu yeglavu yinkqubo echanekileyo apho i-viscosity idlala indima ephambili. Inqanaba lokuntywila liqala ngokuhlamba i-coagulant, hayi i-latex. Ukwaleka okulinganayo kwe-coagulant kubalulekile ukuze i-latex inamathele ngokulinganayo. Ukumanzisa okungalunganga kwe-coagulant kukhokelela ekunamatheleni okungalinganiyo kwe-latex, imeko enokubangela "iingxaki ze-fish-eye" okanye indawo encinci.
Ubukhulu bokugqibela befilimu buxhomekeke kwi-latex viscosity, isantya sokuntywila, kunye nexesha lokuhlala ebhafini. Kwimigca yemveliso ekhawulezayo, kufuneka kugcinwe ibhalansi echanekileyo ukuze kufezekiswe ubukhulu obujoliswe kuyo ngaphandle kokubangela ukuvaleka komoya okanye ezinye iziphene. Ngaphezu koko, ukuthembeka kwe-latex compound kufuneka kugcinwe kuyo yonke inkqubo yokuntywila. Ukushukuma kunye nokujikeleza kwegazi kuyimfuneko ukuthintela iingxaki ezifana nokususa ulusu, ukukhrimu, kunye nokuthungwa kwenkunkuma, okuya kutshintsha i-viscosity ye-compound kwaye kukhokelele ekungahambelani kwimveliso yokugqibela.
Emva koNyango: Imiphumo yokugqibela yeViscosity
Impembelelo yeempawu ze-rheological ayipheli emva kwesigaba sokudipha. Amanyathelo alandelayo emva konyango afana ne-vulcanization kunye ne-leaching, agxile kakhulu ekuguquleni iimpawu zomzimba zefilimu, nawo anxulunyaniswa nokuziphatha kwekhompawundi yokuqala. Ubushushu bangaphambi kwe-vulcanization, umzekelo, bunokuchaphazela iimpawu ze-rheological zekhompawundi ye-latex kwaye, ngokulandelanayo, iimpawu zoomatshini zefilimu yokugqibela. Yonke le nkqubo yi-feedback loop eqhubekayo apho iiparameter zesigaba ngasinye zichaphazela umgangatho wemveliso yokugqibela, inkqubo ekufuneka ilawulwe ngononophelo ukusuka ekuqaleni ukuya ekupheleni.
Ukunciphisa Iziphene Eziqhelekileyo Ngokusebenzisa Ulawulo Lokuxinana Okusebenzayo
Ipesenti enkulu yeziphene eziqhelekileyo nezibiza kakhulu kwiukuvelisa iiglavu zelatexzilandeleka ngokuthe ngqo ekusileleni ukulawula i-viscosity kwinqanaba elinye okanye ngaphezulu kwenkqubo. I-Viscosity yinguqu eqikelelwayo yomgangatho, kwaye indlela yokulawula ngokukhawuleza ibalulekile ekuthinteleni iziphene.
Uhlalutyo oluneenkcukacha lweempazamo ezinxulumene ne-Viscosity
Imingxunya yePini:Esi sisiphene esibalulekileyo esibeka emngciphekweni ukhuseleko lweglavu kwaye sidla ngokunxulunyaniswa nokuxinana kunye neengxaki ezinxulumene noko. Iingcambu ziquka ukuvaleka komoya ngenxa yokuxubana okungafanelekanga okanye ukungabikho komoya ngokwaneleyo, izinto ezingcolisayo ezifana nothuli okanye amasuntswana anganyibilikiyo kwi-latex compound, kunye nokwaleka okungalunganga kwe-coagulant okushiya indawo apho i-latex ingenakunamathela khona.
Ubukhulu obungalinganiyo:Oku kungenxa yokulawulwa kakubi kwe-viscosity. Izizathu zininzi kwaye ziquka ukungoneli kwe-latex viscosity, okukhokelela ekungaguquguquki kakuhle kunye nokufakwa okungalinganiyo, kunye neengxaki zoxinzelelo okanye ukusetyenziswa kwe-coagulant engalinganiyo.
Amandla okuThamba aphantsi kunye nokuqina okulinganiselweyo:Ifilimu ebuthathaka idla ngokuba ngumphumo wokuqhagamshelana okungafanelekanga ngexesha le-vulcanization, okunokuchatshazelwa bubushushu bangaphambi kwe-vulcanization. Nangona kunjalo, ukungangqinelani okusisiseko kobukhulu befilimu okubangelwa kukulawulwa okungalunganga kwe-viscosity kusisandulela sezi mpazamo zoomatshini. Iglavu enobukhulu obungalinganiyo iya kuba neendawo ezibuthathaka ezinokuthi zikrazuke kwaye zibhoboze ngexesha lokusetyenziswa.
Ikhonkco elipheleleyo lesizathu sezi ziphene ezininzi liyinkimbinkimbi. Umzekelo, ukusetyenziswa kwesixhobo sokumanzisa ukuphucula ukugquma kwe-coagulant, ngokumangalisayo, kunokukhokelela ekwakhekeni kwe-foam. Eli foam lenza iipokotho zomoya ezibangela ukusetyenziswa kwe-coagulant egobileyo okanye engaphelelanga, nto leyo ebangela ukunamathela kakubi kwe-latex kwaye ekugqibeleni ikhokelele kumabala amancinci kunye nemingxuma ye-pinhole kwiglavu yokugqibela. Olu luhlu lweziganeko lubonisa ukuba utshintsho olubonakala luncinci lwenkqubo lunokuba nefuthe elibi kakhulu, elibangelwa yi-viscosity ezantsi.
Izisombululo Ezisebenzayo Zokuphucula Umgangatho Oqhubekayo
Ukuze umenzi akwazi ukunciphisa ezi ngxaki ngokwenene, kufuneka indlela ebanzi.
Ukubeka esweni ukuxinana ngexesha langempela:Eyona sisombululo sisebenzayo kukutshintsha ukusuka kuvavanyo oluqhutywa ngesandla, olusekelwe elebhu ukuya ekujongeni i-viscosity rhoqo, kwi-intanethi. Oku kubonelela ngoludwe lwempendulo oluqhubekayo, oluvumela uhlengahlengiso olukhawulezileyo nolwenzeke ngokuzenzekelayo kwinkqubo, ukuthintela iziphene ngaphambi kokuba zenzeke.
Ukuphucula iiParameters zeDipping:Sebenzisa iinkqubo ezizenzekelayo ukulawula ixesha lokuntywila, isantya sokuphakamisa, kunye nobushushu ukuqinisekisa ukwakheka kwefilimu rhoqo.
Ukucoca Okuphambili kunye nokuDama:Sebenzisa izihluzi ze-mesh ezichanekileyo kakhulu kunye nokukhupha i-vacuum ukuze ususe ungcoliseko kunye nomoya ovalelekileyo kwi-latex compound.
I-Viscometer yeLonnmeter-ND Vibrational
II-viscometer ekwi-intanethi yeLonnmeter-NDsisisombululo esakhelwe injongo esibonisa iingenelo zobuchwepheshe bokungcangcazela ekwenzeni iiglavu zelatex. Isensor yayo yinto enye, evezwe njengeqinileyo engcangcazela kwisantya esithile. Amandla alahlekayo kukumelana kolwelo alinganiswa nge-elektroniki aze aguqulwe abe kukufundwa kwe-viscosity. Esi sixhobo sifanelekile kuzo zombini ii-Newtonian kunye nee-non-Newtonian fluids kwaye siyakwazi ukugcina ukuphindaphindeka okuphezulu, nokuba ukuchaneka okupheleleyo kwee-non-Newtonian fluids kuchaphazeleke kancinci.
I-Lonnmeter-ND sisisombululo esinomtsalane kushishino ngenxa yezizathu ezahlukeneyo:
Ukuqina okungenakuthelekiswa nanto:Yakhiwe ngezinto ezifana nentsimbi engagqwaliyo engama-316, yenzelwe ukumelana nobunzima bendalo yemizi-mveliso, kungekho zinxalenye zishukumayo eziya kusilela ngenxa yokuguga okanye ukungcola.
Ukuguquguquka kunye nokwenza ngokwezifiso:Esi sixhobo sibonelela ngoluhlu olubanzi lokulinganisa, ukusuka kwi-1 ukuya kwi-1,000,000 cP. Singenziwa ngokwezifiso ngomzimba omde wokufaka (ukuya kuthi ga kwi-2000mm) kunye noqhagamshelo lweflange ukuze lungene ngqo kwiitanki kunye neereactors ezinzima ukufikelela kuzo, ezifana nezo zisetyenziswa ekudibaniseni nasekugcineni.
Ixabiso elincitshisiweyo kunye neNkunkuma:Ngokubonelela ngedatha yexesha langempela,ILonnmeter-NDivumela ukwenziwa ngcono okuqhubekayo kwenkqubo yokuntywila. Oku kuthintela ukwakheka kweziphene, kwandisa isivuno semveliso, kunciphisa inkunkuma yezinto eziphathekayo, kwaye kunciphisa umsebenzi wezandla kunye nexesha lokungasebenzi, nto leyo ekhokelela kwimbuyekezo ekhawulezileyo kutyalo-mali.
Ukwamkelwa kwesixhobo esifana neILonnmeter-NDiguqula inkqubo ukusuka ekusebenzeni ngesandla, okusabelayo ukuya ekusebenzeni ngokuchanekileyo, okuzenzakalelayo, kunye nokusebenza ngokukhawuleza. Iingenelo zemali zolu tshintsho zicacile kwaye zibalulekile.
| Iinkcukacha zoBugcisa | Ixabiso(amaxabiso) |
| Uluhlu lwe-Viscosity | 1–1,000,000 cP |
| Ukuchaneka | ±2%−±5% |
| Ukuphindaphinda | ±1%−±2% |
| Izixhobo ezisemgangathweni | Intsimbi engagqwaliyo engama-316 (ezinye iindlela ziyafumaneka) |
| Ukwenziwa ngokwezifiso | Umzimba omde wokufaka (500mm-2000mm) wemithambo yokusabela |
Nawuphi na uchwephesha ofuna ukuphucula umgangatho wakheukuvelisa iiglavu zelatexumgca, indlela eya phambili icacile: hamba ngaphaya kovavanyo olwenziwa ngesandla, olusabelayo. Ngokwamkela i-viscometry ephucukileyo kwi-intanethi, efanaILonnmeter-ND, abavelisi banokuphakamisa inkqubo yabo ukusuka kubugcisa ukuya kwisayensi, befumana inzuzo yokukhuphisana esekelwe kumgangatho ophezulu, ukusebenza kakuhle, kunye nendlela yokuthintela iziphene. Iingenelo zemali zolu tshintsho azingombono; ziziphumo ezithe ngqo zokwanda kwemveliso, ukuncipha kwenkunkuma, kunye nomgangatho wemveliso ophuculweyo, okukhokelela kwimbuyekezo ekhawulezileyo nebalulekileyo kutyalo-mali.
Ixesha leposi: Sep-18-2025
